Insulating round pipe elbows using fiberglass ductwrap (Mechanical Training - Duct # 102)
Вставка
- Опубліковано 6 сер 2024
- Common tools used, pattern sizes etc. are linked in description below;
Video Chapters
0:00 Intro
0:34 Notes on insulating elbows
1:14 Adjusting elbow positions
2:16 Insulation pattern for elbows
7:35 Insulating elbow
11:53 Filling missed spots
12:48 Applying duct tape
13:55 Applying mastic
14:46 Time saving TIPS
18:42 Closing
Pipe Pattern Sizes (ONLY APPLIES TO 3” INSULATION);
(Note: Pattern sizes can change based on manufacturer and other factors)
ALL SIZES ALREADY INCLUDE 2” LIP!
4” = 16" + 2" Lip
6” = 23" + 2" Lip
8” = 30" + 2" Lip
10” = 38" + 2" Lip
12” = 44" + 2" Lip
14” = 52” + 2" Lip
16” = 57" + 2" Lip
18” = 65" + 2" Lip
Notes;
• Do it right the first time! Quality is important AND your reputation is ALWAYS on the line!
Tools used;
Wiss Scissors
amzn.to/3HKBKP5
Bostitch Staple Gun
amzn.to/3V8xCLN
Duct tape used
amzn.to/3PD7441
Mastic tape used
amzn.to/3HHVAdx
Drill with 1/4" driver
Tape Measure
As an Amazon Associate I earn from qualifying purchases.
You make the best instructional duct videos for anyone, very detailed, and dedicated to your craft, I am DIY, may not replicate it as perfect, it's harder than it looks, but will be damn close because of how you explain it great detail. The tapes you used also make a difference, a little more costly but night and day difference after using the cheap crap. I purchased a new build and the builders just cheap out on things like this, and hire the cheapest but not the best labor, so I am giving it a stab because I enjoy building things, but I feel confident now that I can improve the duct work using these skills now. Everyone talks about how important ductwork is improving IAQ, especially in Florida where it runs through a hot attic, but no one shows how do it properly, so appreciate you doing this. Can have a fancy air handler and condenser, but what good is that if the duct work is substandard. Also Doing it before you go into the attic makes sense, working in the attic in Florida is miserable, it's like working in an oven. It's unfortunate the builders who make ridiculous amounts of money on new construction, dont pay professionals like yourself to do it which may cost more but be done right, yet still give them a good profit and more important known for quality construction, but even the best builders go cheap for, profits.
In a field that no one wants to train, this is very informative. Thank you sir
Man, I wanna redo my entire duct system just for fun after watching these vids. Thanks dude.
People like you make the internet a great place. Thanks for doing this video. Extremely helpful.
Love your method of wrapping the elbow, 20 years ago I was taught the football method which used a lot of tape. We never used mastic on the wrap even today.
This guy is the epitome of an American guy 😅
Really great hands-on example. It's definitely not a piece of cake doing that on the field.
Killer 🔥 videos! In the almost 15 years I’ve been doing this(service mostly) I have never once seen an actual training on wrapping round elbows. If y’all don’t know, this man is an absolute craftsman. And THAT is a dying breed. Bravo.
Insulating is a red seal trade that covers a lot of different patterns of Insulating and cladding. 10000 hours minimum and 4 years of training. Yes this is a great source of knowledge for hvac tech.
I just started an his videos literally have me above helper pay
🤌
@rayg436 it's not hard this is called the bandaid method or the football method I can do a square one too
haha the gusset cutting used in sewing clothing Yepper
Watching you take pride in your work and profession gives me hope that someday I'll get a HVAC guy who knows or cares what they're doing.
Great work my friend.
Finally someone who knows how to do a nice decent job. The people who did the house I live in needs to watch this video.
lol...same!
Someone who actually knows what they are talking about. Very refreshing.. and thank you for the information.
I just want to let you know you do excellent tutorials. You are a true master of your trade! You have definitely taught me a few things. Keep up the good work!
Andrew. I,ve asked my guy,s to watch your training video,s. Excellent, time-saving instruction. Thx !
Awesome, thanks for the compliment. I have 3 more in the making so keep an eye out for more videos. Thanks
Best video so far on how to do a 90. Typically run rectangle but had to do 18” spiral and the 90s were killing me.
Sir thank you so very much for putting these videos on UA-cam. As a new employee completely green to hvac, and working for my friends family business as an installer, just completing my first week of work, this is going to help drastically with increasing productivity. We are doing new construction on a retirement home where there are individual units in all the rooms, and im getting my feet wet in the trade with installing plenum boxes and making all the connections. There is a ton of rooms and not all the drops are exact so I'm unable to use the exact same dimensions for all my straight pipe between the 6 inch elbows. As well, not all the units are in the exact same spot in the closets, so I'm basically having to measure to fit every single one to ensure that I get a fllush proper fitting connection. Being new to the trade and also believing that quality is your worth, and being thrown to the wolves for on-the-job training, the methods that you're using and your attention to detail and in an easy-to-understand and comprehensible way is exponentially priceless. Take pride in what I do and I'm a fast learner and want to know everything there is to know about what I'm doing so has taken to you too and the internet to scour for tips to increase my value and productivity. This right here exactly what I was looking for and without rambling on any further I just want to say thank you. I can't wait to start work Monday using what I've learned on my second week and to see how drastically improves my production is going to be. I completed 4 closets total on my first week. I expect I could be able to very easily double or even triple that by the end of next week. Do you have any videos that you think I should check out as greenhorn new to the trade and things that I should know, please link me as I'm trying to gain as much knowledge as I can.
I am a heat and frost mechanical insulator this is a good way to do the elbow on a small pipe . I find it easier to insulate the elbow first. Then measure the straight insulation to fill in between.
I never even knew mechanical insulation was a trade in itself always thought the hvac guys/plumbers etc did it themselves. Started when I was 19 and 16years later still insulating its nice to see dif techniques though, respect!
Thank you for including the pattern dimensions too! I just started to insulate my home's hard pipe in the attic and I haven't been able to find anyone showing a "real world" method of creating a pattern for adjustable elbows with minimal seams and tape usage. I was also considering using the more flexible duct tape and saving the FSK for the long, straight seams, but didn't think duct tape would last in an attic - until I saw you apply the sealant over it. I like that idea!
For the first six minutes I had no idea how you make the final fitting work-- until 6:29 when it hit me.
This is genius craftsmanship
Super impressed-Again!
This is a very nice video! I have so much trouble insulating those 90's. That and my coworkers taught me to just take a 2 to 4 foot piece and just patch it together. And I hate doing it that way since it's ugly as hell. So this will definitely help me out a lot!
I really like your motto, “Your quality is your reputation!” I’m challenged to find the balance between quality and being obsessive especially when I’m crunched for time. I guess that comes with time and experience.
I completely understand that struggle..
Incredible! Not a single dislike and I know why!! Great videos!
Awesome tips Andrew. Thank you very much.
Great video Andrew. The Quality is always in the details.
You’re a craftsman like our stuck van man commented and I respect and salute you!
As an HVAC contractor in S.Florida there’s not much quality or sheet metal down here and I found your videos very helpful.
Keep up the great videos and quality!
Nice pattern! Smart
Sweet I knew there was a certain way to insulate elbows and I’m glad I came across your video I like your method it’s cleaner
Great video!😊
Thank you for this very informative video. A Big help for me since your attention to detail, showing the template cut and the taping process. Your video saved me a lot of frustration and prepared me for my project. Carry On Sir!
Thank you for your excellent explanation I really like and I enjoyed these videos;
Would you make a video of how you connect all the ducts from the furnace to the registers,.
The furnace the trunk and branches; that would be a excellent video.
Thanks one more time. Nothing but excellent.
So professional
He's a Genius!
I take pride in my work as you seem to. I like my seams straight from one piece to the next, makes painting easier as well just different doing it in the air than on the ground. But your work looks good I dig it. I can't imagine having to wrap a 200roll job on the ground b4 hanging it though. I got a 350roll job atm va nursing home sheww. And the chillwater in it. Just myself and 3 other guys day in and day out slinging fiberglass! We do alot of outdoor duct as well usually armaflex or duct board followed by usually embossed metal over the insulation to watershed.
Thank you
Nice!
The only thing that got me was watching you mastic tape. all the little sections of paper backing kills time. One big long piece is easier to clean up . But great video I can't wait to start using this knowledge. Also used your straight pipe video with my new helpers to study
Also if you do any videos on laying patterns out for t's laterals etc in metal for covering chillwater pipes, roof drains etc I know plenty of ppl that would be interested. Not alot of ppl out there doing videos on how to insulate large t's and cutting metal gore 90's using dividers and measurements to cut patterns in metal covering that fit like a glove
Nice work AGL! Clever how you did that also like the long scissors that's what i use in the field & always get strange looks lol
Nice
Your videos are incredibly insightful! Hope you keep them up; you’ve been my pseudo best friend & a huge help to me this week. Somehow I was able to create a modified template for a 45 elbow, which was incredibly shocking to me since my brain struggles with 3D visuals; kudos to your training method! Now I’m struggling with applying the same efficiency and effectiveness to a wye. And maybe I’m over complicating it, but my brain just can’t get there, even with scrap insulation to attempt. Any advice?
You do things a little different than we do but I have seen 90's wrapped this way. I find on round pipe anything 12and under I can pull a bit of fiberglass out bunch it tape it then pull the bottom around same way n keep it rolling if that makes sense.
Love all your cheat codes. Thanks again Sir! Question if someone was doing 20" round spiral and it's to be mounted outdoors on a packaged unit exposed to the elements would you wrap it with something else after insulating it and masticking the insulation? What would that weather proof wrapping be called?
Love that i came across this video, started doing hvac 2 yrs ago and duct is an area ive needed to work on. Thank you. Btw will putting masitc on fsk tape work?
Yes would work fine. Mastic on the outside of duct is something we have to do by code in Charleston SC. It may not apply to your area but I personally like it after doing it for so many years.
now imagine doing this in a 5ft tall attic with 90f temperature
My Ducting looks so bad after seeing all this. The company that installed it really did a half assed job.
Sorry to hear that. The industry itself definitely needs more training.
Can you show how to do a 6" ridgid elbow
But I'm an insulator by trade and wrap too much duct lol. Average 2to3rolls a day. Most all our jobs are 2.2inch 3/4lbs. 75ft rolls/300ft². I always cut a lap as well on the part I pull towards me to make my seam. And if something insulated to the left and right of me and I'm putting a piece between I cut a lap in the opposite side from the factory lap as well. We use minimal foil tape stationing the piece to hold it together pop some staples then fab my butt seam and horizontal seam all our jobs are fab mastic
Great video Andrew appreciate the knowledge I just got into the commercial side of HVAC here in Florida and the boss said if I feel comfortable taking this exact task on he’ll 80% of this quote on my check as a bonus.. I’m working with 9” elbows is the a method to calculate how wide to cut your first piece like how you cut 44” wide for the 12”?? If you could get back to me that would be greatly appreciated
Test fit a section of insulation on 9" pipe. Once you find a size that covers the pipe properly (not too tight) you can then use that length to make your elbow pattern. I don't know an exact length for 9" because I normally use even number ducts (4", 6", 8"). I can calculate it but it's just as easy to just cut test and if off trim.
What staples are you using
Can i use 324a premium foil hvac sealer tape with backing on my insulation before mystic
I wouldn't personally use that but that's just my preference. I don't think mastic would stick well though.
What's the purpose of mastic outside the insulation? Ive never seen that here in rhode island.
It's a code requirement here in Charleston SC. It gets so hot in the attics that the duct tape will melt and fall off the duct so we have to seal the outside as well.
Great training videos. I thought mastic first filled gaps then foil tape over it, then insulate. I see you’re using mastic to help hold the tape on over time. Any thought you have on if beneficial to mastic first or when to use different approach’s?
Mastic is technically a barrier for air and used to be used on pipe seams (for me at least). This is now substituted using a "mastic tape" (Hardcast M# 1402) so mastic is no longer needed when this other product is used as it relates to sealing airflow. However, in my region we experience very hot attics and duct tape and even FSK tape fail. We apply mastic over duct tape to prevent the tape from coming loose in this situation. In my region mastic applied to the exterior insulation seems is required by code.
28 years in business. Best wrap job ever seen. Proper way. Everybody always do fast wrong way.
Hi Andrew,
I admire your quality and professionalism! I am looking for an HVAC (heat pump) installer on the east coast (Boston area). Do you work on this area? If not, could you recommend someone you may know?
Thanks,
Fabian
I work in Charleston, SC and unfortunately I don't have anyone I can refer in that area.
Bummer ;) Thank you for the quick reply and keep it up with the great videos!@@aglmechanicaltips
If the duct is already installed , how will I use your method of insulation of round elbow?
Use a tape measure and bend it around the outer radius write down the measurement. Then take the measurements of your inner radius and write down. Make a pattern with those measurements. I'm confident I explain this in the video.
Do you have content on take offs insulation on round square and saddles ?
I believe this is what your asking for?
ua-cam.com/video/zkukZYXnD1Q/v-deo.html
What kind of scissors do you use?
How do you cut it when you’re in the air on a lift not on the ground
Cut pattern on the ground, carry up to where your fitting is installed.
My question is how you playing with that insulation without any gloves or anything I go home itching if I just see insulation during my day
I have built a tolerance to it. Still sucks but manageable.
@@aglmechanicaltips I knew you were going to say it…lol
Why not do the middle of the elbow first? It seems like it would have saved a lot of issues.
great wrapping, not a clue why you would waste time and money putting duct seal on the outside of a vapor barrier, but i liked the wrapping job.
Required per code in my region, would fail inspections without it. The heat and humidity is so high that it causes duct tape to come off where I live.
What stapler are you using?
Hello, there is a link to the stapler in the description section under the video. Thanks
Can I just sleeve the elbow with scrap flex ?
I personally believe that would look terrible and probably have gaps in the insulation.
@@aglmechanicaltips just the jacket and foil. Not the liner. one continuous piece of insulation. I’d be curious to see it with a thermal camera under load.
Crazy how in industrial staplers aren't used. It's straight insulation and duct tape.
Stapler is used multiple times, example at 8:00
what if its already suspended?
They sub it out to mechanical insulating company
Sir you have vecancy I am hvac air conditioner duct fitter and 15 years experience Gulf country in Kuwait
www.aglair.com/employment
How are u not itchy from that fiberglass?😮
Still get a bit itchy but my tolerance is up there
@@aglmechanicaltips thats so amazing!
I've never seen silver duct tape b4 in my area, now i gotta have it. 🫡😎🍻
That's Nashua 365, I believe I linked it in the description. It's good stuff!
You are fired
Ur deff not suppose to duct seal the insulation. Ur suppose to duct seal the seams ON THE METAL, then u insulate it lol if u were hanging that youd be wearing that lol if ur worried about the tape not sticking bc of the duct seal on the metal, then simply duct seal the inside of the elbow b4 u insulate it instead of duct sealing the outside so u dont wear it and so the tape sticks and the insulation doesnt mess up the mastic seal
Mask?
Butcher
Waste of time could’ve wrapped this thing in 2 min, tape down both of your ends just past the 90 that mess with the middle last tuck one end over the other and your good tape it up