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How to Patch a Leaking Rubber Roof | This Old House
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- Опубліковано 7 вер 2014
- This Old House general contractor Tom Silva repairs a leaking flat roof with a new, long-lasting patch. (See below for a shopping list and tools.)
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Shopping List for How to Patch a Leaking Rubber Roof:
- high-density fiberboard, forms new substrate under roofing
- rubber roofing
- rubber membrane cleaner
- rubber-to-rubber contact cement
- lap sealant
Tools for How to Patch a Leaking Rubber Roof:
- utility knife
- drill/driver
- framing square
- 3-inch paintbrush
- 3-inch roller
- caulk gun
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How to Patch a Leaking Rubber Roof | This Old House
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Nice clean work, however, it is very important to round the corners of the patch. A square corner is more likely to be peeled back if impacted by foot traffic or some other reason. In this case, it's not so serious because it's a large patch and there is a large overlap onto the roof. When it's smaller, there is shorter distance between the edge and open roof cavity.
What shall I do when a right angle corner is lifting up and now is quite dirty between the layers? Not sure if i should just clean do follow other steps to re-seal it or if I need to cut it out. Its the corner of a large square piece of rubber (several feet by several feet) with a seam all along the perimeter where the rubber wraps around the edge of the roof of the mud room.
Thank you sir. I have a flat rubber roof that has some damage from a storm last fall, I used bicycle tire patches for temporary repairs & they held up all winter but it is time to fix it right, and now I don't have to hire someone else to do a good repair.
Don't you just love reading the comments from all of the self-proclaimed experts.
Oh, since you dont know roofing, here is 1 of the 3 largest EPDM manufacturers in the world, doing what they did right.
ua-cam.com/video/kIxHnYW0wo0/v-deo.html
Cliff Richard??
@@justinwoods240 Congratulations lol
Cliff Carlo had to say it lol
Funny I usually fill my depressions with alcohol
That's a bad path to follow.
Now that made me laugh out loud, BUT I agree, a very bad path to follow. If you are actually serious, please speak with your doctor and consider counselling to help you.... it literally saved my life and it can save yours too.
Some roofing companies would tell you that you need to replace the whole roof, and not do the job half as well as Tommy.
There may well be more problems under that roof.
RandallFlaggNY They look like a young couple with their first home and may not be able to afford a full roof replacement yet.
+RandallFlaggNY Those membranes are REAL tough! Tommy would have pointed it out...It's always obvious for professionals...
good video most membrane comp would recommend rounding all edges
Having Tommy looking over your shoulder while you use powertools has to be stressful. :)
I've seen people worse than Tommy on other Home Repair Shows.
Pete Brown .
Tommy you blew my mind brother , for decades Tommy & Norm have been my idols & until watching this video have never saw either man make a mistake , Tommy made 4 mistakes in this video .
1st is not cutting out all the old " uncured" rubber before patching , it's not good to glue cured rubber over uncured rubber & can blister .
2nd is square corners of the patch , all corners of any mil EPDM should be rounded , when rubber shrinks & tightens up square corners will pop up , and square corners can lift by snow & ice movement , or foot traffic .
#3 Patch size , the patch should extend a full 12 inches on all sides of the repair , 6 inches will work but having the full 12 inches is industry standard .
4 Seam tape vs seam caulk , all rubber to rubber seams not adhered using seam tape with 1/8th inch tape exposure must be caulked using seam caulk .
This is the fourth video where I've seen him do something completely wrong.
The oldschool EPDM roofers had less code and a different methods with the splice adhesive they used; its not like today's modern primer and pressure sensitive tape used in modern EPDM roof systems; if he was doing that roof repair back in the older days of EPDM it would be a standard I am sure.
12 Inches for a patch? Are you kidding me? Not an industry standard; the industry standard is definitely 6 inches; with some manufacturers even allowing the warranty to stand at 3 inches with pressure-sealed seams; I enjoy overkill myself - but that is by no means the standard for seams. UA-cam roofer over here I see.
Michael Ledford Please make a video showing the right way.
Residential vs commercial...its unbelievable what shinglers will do and get away with...
Just spray the area with flex seal
I think its tar based flex seal, it will destroy the rubber roof.
Flex seal is crap I have tried that, it lasts a couple months and then seems to disappear into thin air
I love this show, been watchin for years......i really need to do this to my own roof....its intimidating...but looks logical enough ... hmmmm.... thanks this old house.....how much would this cost installed on average, labour incl?
Thank you sir i am learning a lot from your videos
1:56 This guy probably can't even use a regular screwdriver
Lmao
when your perfect then comment
I almost made the same comment. LOL
Not to manufacture spec but it'll work for now. 👍🏻
Good patch job. Should last until that roof needs replaced. Might have to re caulk it. There is a phew other ways to make a more permanent patch. But this is good for a small house quick patch.
Chris Moltisanti +
They have self-adhered membrane so no need for seam glue. If you must use standard EPDM then seam tape is better than seam glue.
Can’t do it this way in MA anymore
I work for Firestone, and that would not pass for inspection. Where's your seam tape sir?
Bar le Duc. What's the correct method or what's a better method? Asking because I want to learn.
Firestone sucks
Clearly you don't know what seam tape is.
Bar le Duc. Perhaps you should research what EPDM Seam Tape is before you make yourself sound like a child? No EPDM job ever would EVER pass ANY kind of inspection without Seam Tape.
Bar le Duc
Its used around the world. Try roofing for a day and you would know that.
That caulking will maybe last 2 years. Use epdm cover tape around the perimeters if you’d prefer a longer lasting repair
if you have a leaking rubber roof call a roofer. there are so many variables that could make this a temporary patch doing it this way.
1:57 How do I screw?
There are a lot of roofers patching epdm on Utube. why?
flat roof.. nothing but trouble
I work repairs for a commercial flat roof locally. Been with this company for six years... I couldn't agree with you more. I know some buildings just don't have a choice... but still...
Jacob Cottle Shame on you brother. Flat roofs are amazing when your customer isnt cheap and hires the dumbest HVAC and grease guys....
Really? Had one roof installed on a flat roof in Philadelphia born & raised and lived there for 42 years. One coating, one roof since 1958? You're wrong. It's called workmanship. Either you're good or you're not. It's really that simple.
I had one installed nothing but trouble,wish I knew an expert at this.
Don't have a rubber roof or a house...but here I am
what is the purpose of fixing rubber sheets on that floor..is it beacuse it's made of wood and prevent it from leaking the room under it..?
In my country the roof is made of solid concrete.
They dont waterproof the concrete in your country with a membrane beneath it or sealing it from the top? Sounds like nonsense
Great video but what is the name of that adhesive? You never told the name or the type of adhesive you're using. I need the name of that glue or type of adhesive. I can do a video of how to patch a roof too but if i dont tell you the names of the tools I use, it's pointless. (3:10) Ruber to ruber adhesive tells nothing about the product used.
this is considered a temporary fix. not a permanent fix. it would leak soon as snow and ice came, prob sooner with a heavy rain. sorry tommy, i been a flat roofer,epdm installation warranty inspector for a long time. im not gonna get commercial installation technical . but a home owner should use seam tape, uncured epdm flashing. for your t-patches. also, cover any t-patch.seam tape as well.roll it in and lap seal.
I just looked at a Mobil home with a flat, rubber roof. Inspector noticed while walking on it a spongy feeling and seam lifted up. Is this an easy fix or will whole food need to be replaced?
This must have been made in an alternate universe where Chemicals act differently...edge mastic is for upstands not for patches, adhesive will not work without uncured epdm tape
Hmmmmmmmmm, flammable.
no it is not
Its a 5 year patch. Not a 35 year roof.
2:08 thats what i have
Depression?! Lmao
I've burned many tiny holes in rubber roofs welding equipment frames and such.
Roof hack keep messing up roofs keep
Me having repairs
U didn't round your corners,didn't use primer or seam tape no T patch over the seam you crossed and I've never see some one clean with a brush
this is not accurate. he should used seam tape and round the corners. i also noticed this guy used a brush to cleam the membranes. use a rag according to firestone,sarnafil,John mansville, and other manufacturers. and when applying quick prime your suppose to use primer pads that are made to penetrate the membranes not rollers or brushes. then use lap sealant
I agree. There are so many of his videos where he does things wrong. You think with the money a show like this has that they would at least do some research and find out the correct way to do things. I guess this guy just learned everything the wrong way and thinks he knows it all.
Isaac flores lopez
Ya. If he uses a brush, the contaminates never get lifted from the membrane. He's basically smearing it around.
Isaac flores lopez HUT UP! TOMMY DID IT FINE!
He should not use seam tape he should use flex tape
Non reinforced , round edges of cut or it will split . Needs to use a rag when cleaning . He wasnt using primer but seam adhesive . Old school . Should have use primer and seam tape . Primer applied with scrub pad . Round corners . T patches where seams cross especially where membrane goes over form flash .
You make it look too easy lol
Rubber roofs like this are not designed to be walked on, are they?
i do this for a livingm you would be surprised how resistant they are
No this EPDM roofing system is trash. SBS hot mop is the only way to go.
No they are not. If it's a high traffic roof they put a drainage mat & then pavers on top of it.
guys it old schools
You had everything correct... And then you forgot the seam tape... I am incapable of believing this repair lasted longer than a year under the most ideal circumstances. I also would have used a cleaner with a rag, not a brush.
That's what I was thinking...my inspector even makes me put t patches where the seam tape intersects...If he used some all purpose sealant instead of lap sealant they may of had some hope
No
Screws and plates.
1:56 wow... that’s sad I could do better when I was 8
Should have rounded his corners. . . Should have used a substrate adhesive for membrane to cover board fill.
Didn’t see him roll the edges with a roller either
seven and 3 quaaatahs, his joisey accent fucking kills me.
Pretty sure Boston is not in New Jersey.
not jersey
wrong! Definitely not long lived, may get a couple seasons out of it depending on climate conditions
100% wrong
this dude don't know what he's doing lol
Alexandros Psallas What?
I've burned many tiny holes in rubber roofs welding equipment frames and such.
Raw Bacon why are you welding up on your rubber roof?????????