Learn how easy it is to install an attic fan. Get the "trade secrets" from the"Jet Fan Man" who has installed around 13,000 attic fans since 1983. JetFanUSA.com
*Well-made, delivered quickly, and easy to install with **Fastly.Cool** . I may be imagining it, but it seems quieter than the 14 year-old unit that I pulled out. Of course it was noisy at the end due to failed bearings, so hard to compare.*
Extremely helpful. My father installed one in our old home. The only difference is he drove a center nail OUT from the attic as the center point to where it was protruding out of the roof/shingles. This way he was absolutely certain to not cut any of the 2x4s on the roof when he cut.
Thanks for the video. I have to say this is one of the finest how-to videos I have ever watched. It is the job, everything about the job, and nothing else. No pages of text, no fancy graphics, no staring at your face looking at the camera. It is very concise and clear! Video of what you're doing with a clear dictation as to how and why. When I installed my fan, I've never cut a single thing into a roof, and I went up there with the confidence that I'd done it a bunch of times! Thanks again!
Thank you! This is my 3th Attic fan from Jeff ( for 3 different properties) over 25 years. I'd not be without a Jeff/Jet Attic fan. It is a great quality, awesome customer support. Once again Thank you!
Can’t tell you how much this helped me. Just knowing what tools to take up on the roof saved countless trips up & down the ladder. The little tips & tricks insure the job is done right and eliminates problems down the road. When you’re retired the DIY savings really add up. Thank you.
I think this is a great video and appreciate you showing us how you do this yourself. I would recommend to anyone who isn't sure about the attic contents to always check inside the attic first before cutting your hole. Some builders will install attic lights and run the electrical wiring close to the top of the ridge line. It's something I always check first so I don't end up having to fix something or at worse end up electrocuting myself. Also when your done cutting your hole, turn your reciprocal saw on its side, slide the blade under the shingles you need to lift up and cut under the shingles to cut the nails off. Works great for me. Thanks again for the video.
Excellent video. Great tip on making water channels on each side and watching for narrow flashing on the fan. I have seen many caulk the fan flashing that meets the wood in other videos. I am following your advice (and the advice of others) - NOT caulking the flashing.
Wow! great video, if I hadn't watched this i would have made a mistake and put the vent under the bottom shingles too. My chickens will love this addition to their coop! Thanks.
Air vent inc installation roof vent: Nice Video and thank you.. I'm only doing my garage from the ladder, this will be a ten hour project... Just kidding.... You really made this look easy. My box comes with a hole pattern cut-out. Lol Your video made me go shop on Amazon yesterday for a 4" inline hose fan and a outside dryer vent cover with louver and screen. And today added it to my 10'x7' Craftsman storage shed at the front gable took 20 minutes looks great low-noise and pumps hot California air right out,, dropped the temp 30 degrees and cost less than $30.00 and one day Sunday delivery. Looking forward to more how to videos.
I'm an inspiration! Congratulations on your off-label process application for air-flow! Try selling this to your neighbors who have sheds...you might be on to something.
It's obvious you're an experieced just by the way you work. It's always good to see someone take a lot of pride in their work. What are yor thoughts on solar powered attic vents?
Installed a second one of these today, checked the first one I put in and it still isn't leaking. Looked at this video to refresh my memory before I did the work. You're awesome dude, thanks for the video post. :)
Thinking about buying one, but was looking for a vid of it actually running. As this is a quieter fan, a shot of the fan running from inside the attic would allow us to hear & see it for ourselves (and would be a great selling tool).
In the second video, does it matter that the power attic vent is being installed that close to the static ridge vents? Doesn’t that negate ventilation?
If you need to replace that fan be prepared to replace the shingles as well. Them globs of silicone will not peel back up. There is still enough asphalt on those shingles that the heat will hold them down or nails work well too. Just my expierence installing new fans after someone went nuts with the silicone.
Would be interesting to know the cfm exhaust on the solar fan versus a power exhaust . Seems like a power exhaust would have more force than the solar . Will do some research before I decide . Nice how to video . Great explanation on the procedure . I hope the solar moves enough cfm's to suit my needs . 😎
That house appears to have a gable roof with a ridge vent. Does the ridge vent alone not do an adequate job of venting the attic? Also is it OK as far as windstorm certificates go to have both a ridge vent and an electric attic vent? I have a hip roof that the roofing company suggested putting on ridge vents and eliminating my electric fan. Big mistake. I would love to install the electric fan again but was a little leery because of the existing ridge vent.
Hello Jeff, You are a professional and have provided a detailed and articulate explanation of how to install an exhaust fan. The only concern I would have as a homeowner on the second roof with the architectural shingles is that there is already a ridge vent installed under the ridge cap. The recommendation by the IRC and IBC is to have only one type of ventilation due to the air flow conflicts that could be caused by having both a ridge vent and a powered vent. If the powered exhaust vent is over sized for the attic space, it could actually draw air and moisture in through the ridge vent. Please advise on your position and why the installation of the jet vent on the second roof with the ridge vent already installed. Just trying to learn more about powered vents. Thanks.
I'm so glad you asked this question. We have a hip roof and it never occurred to me that there could be air flow conflicts if we have both a vent and a roof fan.
Just left the same comment, I have a build in 4 days and am adding more roofing components to properly ventilate the attic. We were taught to not have active vents that close to static vents
LOL When you said "Stops birds and squirrels" it sounded like "Stops virgin squirrels" on my tablet and I had to rewind it because I knew that couldn't be right...
Hi just have a question regarding installing a roof fan like u did on a residention roof that currently has 4 other vents on roof.....what do u do with the other vents? I was told you would plug them up but not sure i agree with it........if you plug up the other vents where is the air going to go when fan is not running?....any input?
Hi I’m looking just to replace the rusted attic fan “Cover “ to the Leslie Locke unit that you installed… 3 secure bolts on top… can you help me with a contract to locate the cover? Thanks for your time
thanks Jeff for the great video on how do do this job proper. gotta install 3 vents on my roof tomorrow and im gonna try to beat your time ayeeeeeeeeeeeeee
Great video - very informative. The added cost of a jetfan is tough for me to justify though. It's about 8 times the cost of a typical home improvement store item. For that difference, I can just locate it where the noise won't bother me.
Could these be mounted horizontally? I am loath to cut into my roof, but have a great place on the western wall where I could easily install a solar version of this protected under the roof eave of my garage.
Hi I started cutting shingles to use a jigsaw to cut the wood. I did this to install a similar home depot fan (with powder painted dome). However AFTER cutting the shingle hole, as far from the peak as you demonstrated, and, as pictured on home depot website, the bloody instructions insist the edge of the dome must be 24" from the peak......so Ive promptly miscalculated and cut a circle directly beneath that. Is this an issue to have the fan's dome edge only 8 inches to a foot from the peak? Why to the instructions say to mount the edge 2 feet from roof peak (meaning center of 25" dome is 36.5" from peak)? Thank you.
Question, why wouldn't you put tar/roof cement under the flange and shingles you pulled up? Just seems like that is going to leak with any type of hard driving rain.
Tar would be necessary on a flat pitch roof to completely seal water out from all directions, but on a sloped roof water naturally drains down except when there is a strong wind. The silicone stops driving wind just as well as tar assuming it is nailed down as well. The bad thing about tar is that it is extremely hard to remove the shingles from the flashing when it is time to replace your shingle roof.
Pretty sure it's just a thin pry bar or nail remover bar, not sure what part of the country you're from, they call them something else where you're at. I picked up one today at Home Depot, I think it was an Estwing, for $10. Harbor Freight has them too, can't remember their price.
I have a ridge vent. How do I determine the distance from the peak to install? This video shows the fan placed inches from the ridge vent and seems will be inefective if too close to the ridge opening since will suck fresh air from the ridge vent across... how about 24" or 36" from the peak? Am I wrong?
Hello this is not a new problem. it's always best to have more cross-flow whether it's a ridge vent or a roof vent or a gable vent. Cross-flow is good so you're right, put the fan a little lower to give it a little more distance. But honestly, I don't worry too much about most ridge vents because they don't really let too much air in as they're designed to stop wind from coming in with rain and snow. 36in to center of fan down from peak is good.
I have one of these it was great but it stopped working and I have no idea why. I have to get up on the roof again to do maintenance. Not looking forward to it.
+LionTribe909 !! The most reliable way is to go inside the attic and drive a nail up through the roof exactly in the middle between the rafters. To be honest, what I usually do is just tap on the roof so I can feel and hear where the rafters are and check a few rafter layouts to know for sure. If I cant be sure, I just cut a small hole first and measure over. Its easier to do on a truss roof with plywood and where there is only one layer of shingles.
Rebecca Junis So from inside the attic you want to mark the middle of the rafter where you want the fan to be placed... I drilled a hole on the mark and then stuck the bit through the hole so you can see it from the roof sticking up... From there you just use the template that comes with the fan and center it on the hole you drilled and cutout the bigger hole... I really hope this helps... Good luck...
Why did you use caulk, rather than henry's or some other roof sealant? I would be concerned with the sun drying and cracking the exposed caulk joints. I would also run sealant along the top where the fan body meets the shingles...just to insure no leakage. Another tip is to figure out from the inside where you want the fan....put a screw or nail in the center, from inside. Measure and cut from the outside.
The problem with amazing sealants, is that the Jet Fan Attic Fan will outlast many roofs. If you stick shingles down with sealants, the roofers will destroy the fan when they try to remove the old shingles while replacing the roof. I like silicone because you can get it off and apart later without much trouble. As long at the roof pitch is above 3 inches per foot, water will drain away without any need for crazy tough and sticky sealants. For years, I never used any sealant at all, but it is good to stop wind from blowing off shingles that have been separated from their seal-down strips. Also to stop an occasional strong wind from the side from blowing precipitation in under the shingles or the flashing, but you have to be careful to leave water a way out at the bottom. You are right about the silicone on shingles that are exposed to the weather; while the 100% silicone caulk that I use never cracks; freezing temperatures with water will cause the silicon to come off the exposed surface of a shingle. AtticFans.com
+s smith Most generally I first go into the attic and find where I'm going to install my fan and drill a hole in the center of the two rafters 24 inches below the peak of the attic. When you get up on the roof lay your fan down with the hole you drilled in the center of your fan. Then align the bottom flashing of the fan on the bottom of the next shingle down. Look at 3:50 in the video to see how he has it. If you're within an inch or less to the next shingle up align it with that one, but try not to go less than 24" below the ridge line. If you moved your fan down 2 inches just measure 2" below your drilled hole, draw your circle and cut your hole. Now after you've installed your fan, the bottom flashing won't overhang and will be lined up nicely on the lowest shingle
Ridge vents don't provide much net free area so you do not have to worry about all the air coming in the ridge vent. In truth, very little will. Once the fan comes on every other vent that goes to the attic will act as intake. no matter where it is. If you are worried, put the fan 3 feet down from the ridge instead of 2 feet. You attic will be much cooler and so will your upstairs rooms. Just make sure there is enough total intake to provide the fan with "make -up air" from outside. So you will not just create vacuum, but actually remove hot air.
If you use one of these with a ridge vent, the fan will pull air from the ridge vent instead of the soffit vents. So no, do not install with a ridge vent, it will defeat the purpose of both.
I cut the shingles on the sides and not the top as you indicated. There is water coming up OVER the flange and leaking into the attic. Could this be because the flange is butted up against shingle at the top? The instructions for this Lowes fan indicated differently, that the shingles on the top be trimmed back. The roof isnt that steep. The flashing is about 2' square, and the fan circle is 14.5" diameter -- Lowes air vent Model #: RV26ML Thanks for any advice!
I was wondering about this also-! It seems to me that without caulking across the TOP of the unit, both under those shingles and running a bead either all the way around the base of the unit and basically "Everywhere" we made a hole in the roof for this thing......I don't know-? What about those occasions when we get wind-driven rain etc.-?
So far, so good! I installed this fan yesterday. ua-cam.com/users/postUgkx7yWIKcrbA9KMHkGSfcgxW2lsjHT6B8Sh I've been watching a continuous radon monitor in my house for about a week, and the levels have been running between 4.5 and 7.9 pCi/L. Shortly after I installed this fan, the radon level started dropping, and in less than 24 hours since I installed it, the level is now 1.9. My basement is approximately 2,000 square feet. Total home square footage above basement is approximately 4,000 square feet. The noise level so far is very quiet. Mine is installed indoors, so I had to purchase a cord and connector. If I have any problems later, I'll update my review. But for now, I'm very pleased with it.Update after 48 hours: Using a constant monitor, my radon is now fluctuating between 0.38 and 0.45 pCi/L. I've moved the monitor to my basement and am getting a constant 0.43 reading. After 24 hours, and when I know the weather will be safe, I'll place the monitor outside for about 12 hours. I'm thinking that the 0.38 to 0.45 may be the outside "ambient" radon level. I'm using this monitor (purchased from Amazon): Corentium Home Radon Detector by Airthings 223
How much is it to have one of these installed? The reason why I'm asking is because I have vaulted ceilings in my home and when it hits 90 degrees outside I can forget about cooking in my home because the extra heat from the stove and the little attic space between my ceiling and the shingles my ac runs all day until 7:00 at night.I have been up in my attic and there is very little space between the roof and the actual ceiling in my home. When it gets 90 outside those shingles are so close to my ceiling it adds heat inside my home so I thought that maybe putting in one or two of these fans would help out a lot.Right now my home has 2 off ridge vents that I made at the company where I work at. We make roof vents for homes.Anyway what's something like this would cost to have someone come out and install 2 of these bad boys in? Great video my friend,thumbs up on it.
If the pitch of your roof isn't too extreme you can get one installed for under $300. The last one I installed in my home cost me right at $200 because I bought all the materials myself. One of these 1250 cfm fans purchased from Lowes is $97. My electrician charged me for one hour of his time $65.00 only because he had to run the wiring to the breaker box and I had him install a couple of lights in the attic for future work I'll be doing up there. I bought a 50' roll of electrical wire $20, one tube of clear roofing silicone $3, a small box of roofing nails $5, and some tools I didn't really need just because you can't go to Lowes without buying more tools right?
These fans are not allowed by code in Georgia. The negative pressure created in the attic draws cool air out of the conditioned space eliminating any benefit of a cooler attic.
If any house anywhere has gaps that allow air to flow through to the attic, winter or summer with or without an attic fan, the gaps should be sealed. Also if the state of Georgia could read the instructions that come with all attic fans they would know that you must have or add static intake inlet venting that minimizes negative pressure. The state of Georgia has erred. Does the state of Georgia allow bathroom fans? How about kitchen fans? Is it illegal in Georgia to turn on your bathroom fan when your AC is on? Does the state of Georgia allow you to open your window. I know the busy law-makers in Georgia open their windows because they are still alive and well. People get sick and die without oxygen.
Fires caused by attic fans are extremely rare...so rare I really have to question the wiring method used. All UL listed motors have a thermal protector so if the motor is blocked from turning and overheats it shuts off automatically. I made a video showing two cheap store-bought attic fans on a woods cedar shake roof that were packed with straw from birds nesting. No fire. Thermal overload protectors are required and they work.
+William Koch look at how easy it is. just take it slow...and like me being nervouse about making sure i dont mess up where i put my hole,im using a ladder in my garage and going to make the hole from the inside out instead..lol
A powered attic vent with a ridge vent, makes fuck all sense. The fan is going to pull air from the ridge instead of the soffits. Decent install, but a terrible example of spplication.
I have been using 100 percent silicone caulk for 38 years and I have never seen it melt a shingle. I agree that it is not the best for sealing an exposed nail head but I like it because when the roof needs to be replaced you can separate the shingle from the fan's flashing more easily without damage to the Jet Fan which will last longer than your next three roofs. I use it in vertical beads under the shingles to stop wind from the sides and to "glue" the shingles down after having been separated for the installation.
I see you have a gable roof with a ridge vent. Doesn't the ridge vent get rid of hot air very well? I had to get a new roof after hurricane Ike and the roofing company said it would be better to remove my electric attic fan on my hip roof and replace it with ridge vents that went down 4 feet at each corner. Worst mistake I ever made. I think I'm going to install an electric fan that I know works and after watching your video.
There's various fan/vent combinations that can be employed. If you already have ridge vents what you want is a fan to pull fresh air in and exhaust it through the existing ridge vents. If you mount a roof fan without ceiling the ridges then air will be pulled through the path of least resistance and may enter from the ridges rather than the eaves.
I live in Miami-Dade County and you'd probably be fined by code enforcement for such a flimsy install. Here's how we install them, "Remove roofing nails from top row of shingles so the flashing of the roof vent will slide under shingles. Apply approved roof cement to the underside of the vent flange around the stack opening. Carefully slide base of vent under shingles with arrow facing up. Make sure the throat of the vent is centered over vent hole. Fasten the base to roof decking at corners, and approx. 4” o.c. 1” from the outside edge of the flange and 1” from stack every 45° with approved roofing nails, 11 gauge, 1 1⁄4” x 3/8” galvanized annular ring shank roofing nails, keeping heads of nails under shingles where possible. Use a minimum of 32 nails. Nails shall be of sufficient length to penetrate through roof sheathing a minimum of 1⁄2". After fastening the flanges to the deck, nail the loosened shingles and adhere with approved roofing cement. See details drawings herein. Seal all seams and nails with roofing cement."
*Well-made, delivered quickly, and easy to install with **Fastly.Cool** . I may be imagining it, but it seems quieter than the 14 year-old unit that I pulled out. Of course it was noisy at the end due to failed bearings, so hard to compare.*
Extremely helpful. My father installed one in our old home. The only difference is he drove a center nail OUT from the attic as the center point to where it was protruding out of the roof/shingles. This way he was absolutely certain to not cut any of the 2x4s on the roof when he cut.
I was just thinking the same thing. That way you know you won't hit a rafter..
Thanks for the video. I have to say this is one of the finest how-to videos I have ever watched. It is the job, everything about the job, and nothing else. No pages of text, no fancy graphics, no staring at your face looking at the camera. It is very concise and clear! Video of what you're doing with a clear dictation as to how and why.
When I installed my fan, I've never cut a single thing into a roof, and I went up there with the confidence that I'd done it a bunch of times!
Thanks again!
+Sanjay Rana Yes...
Thank you! This is my 3th Attic fan from Jeff ( for 3 different properties) over 25 years. I'd not be without a Jeff/Jet Attic fan. It is a great quality, awesome customer support. Once again Thank you!
Can’t tell you how much this helped me. Just knowing what tools to take up on the roof saved countless trips up & down the ladder. The little tips & tricks insure the job is done right and eliminates problems down the road. When you’re retired the DIY savings really add up. Thank you.
The sped up head cam starting at 8:00 is amazing. A DIY point of view and a good visual recap of your prior explanation. Thanks!
I think this is a great video and appreciate you showing us how you do this yourself. I would recommend to anyone who isn't sure about the attic contents to always check inside the attic first before cutting your hole. Some builders will install attic lights and run the electrical wiring close to the top of the ridge line. It's something I always check first so I don't end up having to fix something or at worse end up electrocuting myself. Also when your done cutting your hole, turn your reciprocal saw on its side, slide the blade under the shingles you need to lift up and cut under the shingles to cut the nails off. Works great for me. Thanks again for the video.
This installation guide was a life saver. THANKS!!!
Thanks I’m a DIY guy & I have 4 just added my 4th fan in my walk in attic . Great Job and tips !
Nice clean job. I was impressed right away with how you made a circle with the tape measure!
By far most underrated video!!! Awesome video!!
Best video ever. I am installing a fan myself now. They wanted $1000+ for this job. Because of this video I will save so much money
Good Day, Mr. Tideman. Thanks for this video. Nailed it in one!
Excellent video. Great tip on making water channels on each side and watching for narrow flashing on the fan. I have seen many caulk the fan flashing that meets the wood in other videos. I am following your advice (and the advice of others) - NOT caulking the flashing.
Nice job man. I'm an electrician so I've done a few in my day too.
You make it look so easy!
Fantastic Video...really gives complete confidence to an dyi!
That was a great video. I enjoyed watching it. Very informative and easy to understand. Thanks for sharing..
Wow! great video, if I hadn't watched this i would have made a mistake and put the vent under the bottom shingles too. My chickens will love this addition to their coop! Thanks.
13k fans installed, I believe after seeing this pro video, NICE
Hey bud thanks for the reply, very informative.
I'm gonna do this in about 10 minutes from now. Here's to hoping I don't fall off the roof! haha. Thanks for the tips.
best diy video i think ive ever seen...right on brotha
Air vent inc installation roof vent: Nice Video and thank you.. I'm only doing my garage from the ladder, this will be a ten hour project... Just kidding.... You really made this look easy. My box comes with a hole pattern cut-out. Lol Your video made me go shop on Amazon yesterday for a 4" inline hose fan and a outside dryer vent cover with louver and screen. And today added it to my 10'x7' Craftsman storage shed at the front gable took 20 minutes looks great low-noise and pumps hot California air right out,, dropped the temp 30 degrees and cost less than $30.00 and one day Sunday delivery. Looking forward to more how to videos.
I'm an inspiration! Congratulations on your off-label process application for air-flow! Try selling this to your neighbors who have sheds...you might be on to something.
Thx for doing this vid!
Thanks for the knowledge...amen
Thanks Bruh, I watched this video 5 times and was able to install my solar fan on my garage in 35 mins. 💪🏾💪🏾💪🏾💪🏾
#UA-camUniversity
Excellent video!
It's obvious you're an experieced just by the way you work. It's always good to see someone take a lot of pride in their work. What are yor thoughts on solar powered attic vents?
Great educational video.
Really great video. You've taught this before, it shows. Especially with the recap at the end. You make me believe I could succeed at this. lol
Installed a second one of these today, checked the first one I put in and it still isn't leaking. Looked at this video to refresh my memory before I did the work. You're awesome dude, thanks for the video post. :)
Does the flashing sit directly on top of the tar paper at the top and sides
Thinking about buying one, but was looking for a vid of it actually running. As this is a quieter fan, a shot of the fan running from inside the attic would allow us to hear & see it for ourselves (and would be a great selling tool).
Thanks for sharing the video 👍
In the second video, does it matter that the power attic vent is being installed that close to the static ridge vents? Doesn’t that negate ventilation?
How much would this cost to buy and install?
When do you know you need one of these fans?
If you need to replace that fan be prepared to replace the shingles as well. Them globs of silicone will not peel back up. There is still enough asphalt on those shingles that the heat will hold them down or nails work well too. Just my expierence installing new fans after someone went nuts with the silicone.
I can do either gable or roof fan. Will there be any difference or results in my choice.
Would be interesting to know the cfm exhaust on the solar fan versus a power exhaust . Seems like a power exhaust would have more force than the solar . Will do some research before I decide . Nice how to video . Great explanation on the procedure . I hope the solar moves enough cfm's to suit my needs . 😎
very clever design
That house appears to have a gable roof with a ridge vent. Does the ridge vent alone not do an adequate job of venting the attic? Also is it OK as far as windstorm certificates go to have both a ridge vent and an electric attic vent? I have a hip roof that the roofing company suggested putting on ridge vents and eliminating my electric fan. Big mistake. I would love to install the electric fan again but was a little leery because of the existing ridge vent.
Hello Jeff, You are a professional and have provided a detailed and articulate explanation of how to install an exhaust fan. The only concern I would have as a homeowner on the second roof with the architectural shingles is that there is already a ridge vent installed under the ridge cap. The recommendation by the IRC and IBC is to have only one type of ventilation due to the air flow conflicts that could be caused by having both a ridge vent and a powered vent. If the powered exhaust vent is over sized for the attic space, it could actually draw air and moisture in through the ridge vent. Please advise on your position and why the installation of the jet vent on the second roof with the ridge vent already installed. Just trying to learn more about powered vents. Thanks.
James MacLean you are correct. Power fans should only be used on hip roofs where you can’t do ridge or box vents
I'm so glad you asked this question. We have a hip roof and it never occurred to me that there could be air flow conflicts if we have both a vent and a roof fan.
Just left the same comment, I have a build in 4 days and am adding more roofing components to properly ventilate the attic. We were taught to not have active vents that close to static vents
LOL When you said "Stops birds and squirrels" it sounded like "Stops virgin squirrels" on my tablet and I had to rewind it because I knew that couldn't be right...
"vermin"
Very helpful.
Hi just have a question regarding installing a roof fan like u did on a residention roof that currently has 4 other vents on roof.....what do u do with the other vents? I was told you would plug them up but not sure i agree with it........if you plug up the other vents where is the air going to go when fan is not running?....any input?
Great video.... 👍.... Was wondering here in hurricane 🌀 country.... 🤔.... Is there any extra reinforcement I would need....?
Hi I’m looking just to replace the rusted attic fan “Cover “ to the Leslie Locke unit that you installed… 3 secure bolts on top… can you help me with a contract to locate the cover? Thanks for your time
Could this be installed on top of a rubber roof with the metal sitting on top of the rubber or does the metal flap need to go underneath the rubber?
About how many inches from top of ridge to middle of circle.
Is the fan detachable from the vent?? Looking to just do fan/motor swap. Same model. And not remove vent
thanks Jeff for the great video on how do do this job proper. gotta install 3 vents on my roof tomorrow and im gonna try to beat your time ayeeeeeeeeeeeeee
Where should I get a professional to install air vents on my house?
Hello Jeff, is this type of job best done by a roofer or an electrician?
Nice fan but cost is crazy! 5x the cost of other models, are they really that good?
does this roof have a ridge vent too?
I really want to install one in my mobile home...thoughts? Is this a DC motor
Great Video! Looks pretty easy :) (those are usually my famous last words!)
Great video - very informative.
The added cost of a jetfan is tough for me to justify though.
It's about 8 times the cost of a typical home improvement store item.
For that difference, I can just locate it where the noise won't bother me.
What type of silicone do you use?
Never put nails at bottom of flashing. Over time water will run down the nail and cost water damage in side your home.
Could these be mounted horizontally?
I am loath to cut into my roof, but have a great place on the western wall where I could easily install a solar version of this protected under the roof eave of my garage.
Try this - www.homedepot.com/p/Master-Flow-1600-CFM-Power-Gable-Vent-in-Mill-PG3X/100088166
Great work, easy to follow along and to understand what and why something is done.
Help me w/ mine Jeff! My 2nd floor gets so hot during this time of year that it rippled the paint on the ceilings. BTW Great video.
Hi I started cutting shingles to use a jigsaw to cut the wood. I did this to install a similar home depot fan (with powder painted dome). However AFTER cutting the shingle hole, as far from the peak as you demonstrated, and, as pictured on home depot website, the bloody instructions insist the edge of the dome must be 24" from the peak......so Ive promptly miscalculated and cut a circle directly beneath that. Is this an issue to have the fan's dome edge only 8 inches to a foot from the peak? Why to the instructions say to mount the edge 2 feet from roof peak (meaning center of 25" dome is 36.5" from peak)? Thank you.
How many watts does that pull?
Great video !!!! I was about to hire someone to install but not anymore. Which fan did u purchase?
I got the Jet Fan jf727
jetfanusa.com/index.php/product/jet-fan-727-rooftop-attic-fan/
Thanks y r the best
installed around 13k attic fans since 1983? damn
Question, why wouldn't you put tar/roof cement under the flange and shingles you pulled up? Just seems like that is going to leak with any type of hard driving rain.
Tar would be necessary on a flat pitch roof to completely seal water out from all directions, but on a sloped roof water naturally drains down except when there is a strong wind. The silicone stops driving wind just as well as tar assuming it is nailed down as well. The bad thing about tar is that it is extremely hard to remove the shingles from the flashing when it is time to replace your shingle roof.
What is the name of the tool you used at the beginning of the video to scrape under the shingles?
Pretty sure it's just a thin pry bar or nail remover bar, not sure what part of the country you're from, they call them something else where you're at. I picked up one today at Home Depot, I think it was an Estwing, for $10. Harbor Freight has them too, can't remember their price.
I have a ridge vent. How do I determine the distance from the peak to install? This video shows the fan placed inches from the ridge vent and seems will be inefective if too close to the ridge opening since will suck fresh air from the ridge vent across... how about 24" or 36" from the peak? Am I wrong?
Hello this is not a new problem. it's always best to have more cross-flow whether it's a ridge vent or a roof vent or a gable vent. Cross-flow is good so you're right, put the fan a little lower to give it a little more distance. But honestly, I don't worry too much about most ridge vents because they don't really let too much air in as they're designed to stop wind from coming in with rain and snow. 36in to center of fan down from peak is good.
I have one of these it was great but it stopped working and I have no idea why. I have to get up on the roof again to do maintenance. Not looking forward to it.
Just curious on how you knew where the rafters were?
+LionTribe909 !! The most reliable way is to go inside the attic and drive a nail up through the roof exactly in the middle between the rafters. To be honest, what I usually do is just tap on the roof so I can feel and hear where the rafters are and check a few rafter layouts to know for sure. If I cant be sure, I just cut a small hole first and measure over. Its easier to do on a truss roof with plywood and where there is only one layer of shingles.
+Jeff Tideman Thank you very much for the detailed reply...
I was wondering this toi
Rebecca Junis So from inside the attic you want to mark the middle of the rafter where you want the fan to be placed... I drilled a hole on the mark and then stuck the bit through the hole so you can see it from the roof sticking up... From there you just use the template that comes with the fan and center it on the hole you drilled and cutout the bigger hole... I really hope this helps... Good luck...
Why did you use caulk, rather than henry's or some other roof sealant? I would be concerned with the sun drying and cracking the exposed caulk joints.
I would also run sealant along the top where the fan body meets the shingles...just to insure no leakage.
Another tip is to figure out from the inside where you want the fan....put a screw or nail in the center, from inside. Measure and cut from the outside.
The problem with amazing sealants, is that the Jet Fan Attic Fan will outlast many roofs. If you stick shingles down with sealants, the roofers will destroy the fan when they try to remove the old shingles while replacing the roof. I like silicone because you can get it off and apart later without much trouble. As long at the roof pitch is above 3 inches per foot, water will drain away without any need for crazy tough and sticky sealants. For years, I never used any sealant at all, but it is good to stop wind from blowing off shingles that have been separated from their seal-down strips. Also to stop an occasional strong wind from the side from blowing precipitation in under the shingles or the flashing, but you have to be careful to leave water a way out at the bottom. You are right about the silicone on shingles that are exposed to the weather; while the 100% silicone caulk that I use never cracks; freezing temperatures with water will cause the silicon to come off the exposed surface of a shingle. AtticFans.com
What is the brand of the fan and where you got it? Thanks
Home Depot
Might be fine for those cheap tiles, but what about those of us with REAL tiles such as S or Barrel Tiles ?
can you put one of these fans in even though the is a ridge vent?..how far away from the peak?
hello hello
yes you can install these next to a ridge vent!!! usually about a foot from the Ridge of the Roof
get the 3.0 you'll be fine
+s smith Most generally I first go into the attic and find where I'm going to install my fan and drill a hole in the center of the two rafters 24 inches below the peak of the attic. When you get up on the roof lay your fan down with the hole you drilled in the center of your fan. Then align the bottom flashing of the fan on the bottom of the next shingle down. Look at 3:50 in the video to see how he has it. If you're within an inch or less to the next shingle up align it with that one, but try not to go less than 24" below the ridge line. If you moved your fan down 2 inches just measure 2" below your drilled hole, draw your circle and cut your hole. Now after you've installed your fan, the bottom flashing won't overhang and will be lined up nicely on the lowest shingle
Ridge vents don't provide much net free area so you do not have to worry about all the air coming in the ridge vent. In truth, very little will. Once the fan comes on every other vent that goes to the attic will act as intake. no matter where it is. If you are worried, put the fan 3 feet down from the ridge instead of 2 feet. You attic will be much cooler and so will your upstairs rooms. Just make sure there is enough total intake to provide the fan with "make -up air" from outside. So you will not just create vacuum, but actually remove hot air.
If you use one of these with a ridge vent, the fan will pull air from the ridge vent instead of the soffit vents. So no, do not install with a ridge vent, it will defeat the purpose of both.
Nice job but didnt understand why leaving more flashing exposed at the bottom wouldve been preferred?
For water runoff..water hitting the roof and draining downwards.. its that way with vents as well.
I cut the shingles on the sides and not the top as you indicated. There is water coming up OVER the flange and leaking into the attic. Could this be because the flange is butted up against shingle at the top?
The instructions for this Lowes fan indicated differently, that the shingles on the top be trimmed back.
The roof isnt that steep. The flashing is about 2' square, and the fan circle is 14.5" diameter -- Lowes air vent Model #: RV26ML
Thanks for any advice!
I was wondering about this also-! It seems to me that without caulking across the TOP of the unit, both under those shingles and running a bead either all the way around the base of the unit and basically "Everywhere" we made a hole in the roof for this thing......I don't know-? What about those occasions when we get wind-driven rain etc.-?
Not sure where you live but in Florida it would have leaked during the first heavy rain.
So far, so good! I installed this fan yesterday. ua-cam.com/users/postUgkx7yWIKcrbA9KMHkGSfcgxW2lsjHT6B8Sh I've been watching a continuous radon monitor in my house for about a week, and the levels have been running between 4.5 and 7.9 pCi/L. Shortly after I installed this fan, the radon level started dropping, and in less than 24 hours since I installed it, the level is now 1.9. My basement is approximately 2,000 square feet. Total home square footage above basement is approximately 4,000 square feet. The noise level so far is very quiet. Mine is installed indoors, so I had to purchase a cord and connector. If I have any problems later, I'll update my review. But for now, I'm very pleased with it.Update after 48 hours: Using a constant monitor, my radon is now fluctuating between 0.38 and 0.45 pCi/L. I've moved the monitor to my basement and am getting a constant 0.43 reading. After 24 hours, and when I know the weather will be safe, I'll place the monitor outside for about 12 hours. I'm thinking that the 0.38 to 0.45 may be the outside "ambient" radon level. I'm using this monitor (purchased from Amazon): Corentium Home Radon Detector by Airthings 223
How much is it to have one of these installed? The reason why I'm asking is because I have vaulted ceilings in my home and when it hits 90 degrees outside I can forget about cooking in my home because the extra heat from the stove and the little attic space between my ceiling and the shingles my ac runs all day until 7:00 at night.I have been up in my attic and there is very little space between the roof and the actual ceiling in my home. When it gets 90 outside those shingles are so close to my ceiling it adds heat inside my home so I thought that maybe putting in one or two of these fans would help out a lot.Right now my home has 2 off ridge vents that I made at the company where I work at. We make roof vents for homes.Anyway what's something like this would cost to have someone come out and install 2 of these bad boys in? Great video my friend,thumbs up on it.
If the pitch of your roof isn't too extreme you can get one installed for under $300. The last one I installed in my home cost me right at $200 because I bought all the materials myself. One of these 1250 cfm fans purchased from Lowes is $97. My electrician charged me for one hour of his time $65.00 only because he had to run the wiring to the breaker box and I had him install a couple of lights in the attic for future work I'll be doing up there. I bought a 50' roll of electrical wire $20, one tube of clear roofing silicone $3, a small box of roofing nails $5, and some tools I didn't really need just because you can't go to Lowes without buying more tools right?
Mastic is better for caulking as it has bitumin... same as asphalt shingles. I would have swept the area before installing the fan.
So you're the guy putting 50 year mastic on those cheap two year fans!
@@jtideman1 Not actually. No roofer across the country would tell you they use silicone. Use the right caulking so your fans don't leak.
👍👍
are you a roofer?
How the heck did you start a hole with a sawsaw? haha
These fans are not allowed by code in Georgia. The negative pressure created in the attic draws cool air out of the conditioned space eliminating any benefit of a cooler attic.
If any house anywhere has gaps that allow air to flow through to the attic, winter or summer with or without an attic fan, the gaps should be sealed. Also if the state of Georgia could read the instructions that come with all attic fans they would know that you must have or add static intake inlet venting that minimizes negative pressure. The state of Georgia has erred. Does the state of Georgia allow bathroom fans? How about kitchen fans? Is it illegal in Georgia to turn on your bathroom fan when your AC is on? Does the state of Georgia allow you to open your window. I know the busy law-makers in Georgia open their windows because they are still alive and well. People get sick and die without oxygen.
wow 700 for a fan
My neighbor's house just burned down due to the attic fan that he installed last year.
Fires caused by attic fans are extremely rare...so rare I really have to question the wiring method used. All UL listed motors have a thermal protector so if the motor is blocked from turning and overheats it shuts off automatically. I made a video showing two cheap store-bought attic fans on a woods cedar shake roof that were packed with straw from birds nesting. No fire. Thermal overload protectors are required and they work.
Where are you located? Can you install a fan on our roof? LOL.
Chicago area. Where are you?
jetfanusa.com/pages/atticfaninstallations.html
Well, I'm in Lancaster, PA. LOL
+William Koch look at how easy it is. just take it slow...and like me being nervouse about making sure i dont mess up where i put my hole,im using a ladder in my garage and going to make the hole from the inside out instead..lol
A powered attic vent with a ridge vent, makes fuck all sense. The fan is going to pull air from the ridge instead of the soffits. Decent install, but a terrible example of spplication.
silicon is not compatible with organic shingles. Silicon would melt the shingles.
Use roofing mastic
I have been using 100 percent silicone caulk for 38 years and I have never seen it melt a shingle. I agree that it is not the best for sealing an exposed nail head but I like it because when the roof needs to be replaced you can separate the shingle from the fan's flashing more easily without damage to the Jet Fan which will last longer than your next three roofs. I use it in vertical beads under the shingles to stop wind from the sides and to "glue" the shingles down after having been separated for the installation.
The flashing on that fan is 3in to no difference
I see you have a gable roof with a ridge vent. Doesn't the ridge vent get rid of hot air very well? I had to get a new roof after hurricane Ike and the roofing company said it would be better to remove my electric attic fan on my hip roof and replace it with ridge vents that went down 4 feet at each corner. Worst mistake I ever made. I think I'm going to install an electric fan that I know works and after watching your video.
There's various fan/vent combinations that can be employed. If you already have ridge vents what you want is a fan to pull fresh air in and exhaust it through the existing ridge vents. If you mount a roof fan without ceiling the ridges then air will be pulled through the path of least resistance and may enter from the ridges rather than the eaves.
@@agentx250 Well I ended up installing the electric roof vent and sealed up the ridge vents. A lot lower temps in the attic now.
@@Captleemo Good to hear it all worked out for you. I'll be installing one soon as well. Luckily I don't have any ridge vents working against me. lol
More under than over
Was that recorded with potatoes?
I live in Miami-Dade County and you'd probably be fined by code enforcement for such a flimsy install. Here's how we install them,
"Remove roofing nails from top row of shingles so the flashing of the roof vent will slide under shingles. Apply approved roof cement to the underside of the vent flange around the stack opening. Carefully slide base of vent under shingles with arrow facing up. Make sure the throat of the vent is centered over vent hole. Fasten the base to roof decking at corners, and approx. 4” o.c. 1” from the outside edge of the flange and 1” from stack every 45° with approved roofing nails, 11 gauge, 1 1⁄4” x 3/8” galvanized annular ring shank roofing nails, keeping heads of nails under shingles where possible. Use a minimum of 32 nails. Nails shall be of sufficient length to penetrate through roof sheathing a minimum of 1⁄2". After fastening the flanges to the deck, nail the loosened shingles and adhere with approved roofing cement. See details drawings herein. Seal all seams and nails with roofing cement."
Nails on the bottom of the flange...... seriously?