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flat roof

  1. Roofing/Siding
    Hi there, I have a slopped roof with two layers of EPDM, the second has a granule/gravely texture. I'm installing a composite deck on tapered sleepers (cut from 2 x TBD to compensate the roof slope) and I want to ensure I separate the cut side at the bottom from the membrane/rubber to avoid...
  2. Insulation
    Hello, I have a flat roof over my one story kitchen in Marin, California. The previous owners hadn't detailed the roof structure, but we believe there is no insulation, just the beams and the exterior tar roofing. In the summer, this roof gets direct sunlight and it leaves our kitchen about 90...
  3. Roofing/Siding
    Has anyone had any experience with click-together roof tiles over a modified bitumen flat roof? Last year we redid a large (~18’x20’) flat roof on our house and, since it has access from our office (and possibly some new outdoor stairs) we’d like to be able to use it as a roof-top deck. The...
  4. Roofing/Siding
    We have a low slope roof (1/4:12) and want to install a 0.065 EPDM layer. The installer suggests Grace ULTRA ice shield below as it is safe for EPDM. I've seen other posts saying the rubber is the roof. Is there any harm in the application as extra protection? We are using a spray foam...
  5. Insulation
    Need to replace insulation on hot water pipes that run over a flat (tar-and-gravel) roof. The pipes serve the house's hydronic baseboard heating system. Previous owner had the pipes bracketed to 2x4 segments to keep them off the roof, and insulated with foam. Sun and weather have caused the...
  6. Insulation
    Hello! I have an addition on my house that was once a patio. They decided to box it in but leave the roof exposed/un-insulated. It is also un-ventilated without any central air and only a fireplace to heat it. I was looking to insulate that room to keep it warmer in the winter so I had a...
  7. Roofing/Siding
    I have a large flat roof on a 2story porch approximately 20" X 60'. Not sure of the material but it is covered with small stone/gravel. On a recent roof jaunt I noticed that portion of the flat roof now has some what appears to be whitish exposed fiber and the stone has washed away...
  8. Roofing/Siding
    Hi Folks, Appreciate your time... Looking for some guidance with patching an old roof. (I have little roofing experience.) What I have is a section of the roof that the previous owner apparently had patched. The outer coating or the actual patch itself has begun peeling. With recent rains...
  9. Roofing/Siding
    Greetings! I have a flat roof on a sun-room that was damaged by the high winds over the weekend. (San Fernando Valley, Porter Ranch) It was roofed with Bitumen and it is pretty much intact. One section has blown up onto my main roof. It is not damaged and can be rolled back in place. It is...
  10. Roofing/Siding
    My mom has a 1900 sq ft half flat and half low pitch roof. The house is an open ceiling design with no attic space. There are leaks at the pitch where there is a narrow band of ponding because the boards creating the pitch do not fit tightly. I still have 2 years on that manufacturer's warranty...
  11. Roofing/Siding
    Hey, I made a different post in which I was asking the wrong question :) Here, I'd like to know whether my low slope (was told 2-12) roof can still be repaired. Plenty of pictures! From what I am told, I have a torch down roof on tar. Now, I haven't been able to find anything on tar roofs, only...
  12. Building & Construction
    This is a mud room that we're in the middle of demoing to remove the closet and the dividing wall to create one large room that we are going to convert into a guest room, and relocate the washer and dryer to a new addition. I'm trying to determine if this dividing wall is load bearing or...
  13. Roofing/Siding
    I just had a rubber roof professionally installed on a flat roof, over an existing tar roof. It looks good over all but I have a question about the lap joints - specifically if the joint edge/lap should be 100% sealed to the layer below it. Let me explain... The joints seem to have a 4"...
  14. Roofing/Siding
    I am re-roofing a flat roof which currently has ponding water in two areas. I have a proposal from a roofing contractor I like to use a tapered PolyISO insulation with a PVC membrane on top. The PolyISO is a standard Firestone ISO product with 20 psi compression strength. My concern is that...
  15. Roofing/Siding
    Hi guys, just wanted to get some advice here. I had a big lake on my flat roof, so before it started to leak on the top I attached OSB with the proper angle and covered it with weather watch leak barrier. At that time I did not know that it is an under roof material. So I installed it the way I...
  16. Roofing/Siding
    I live in NYC and have a flat roof which we use as a roof deck. I was tired of the ugly silver coating and decided to buy some green tennis court paint which not only looks much nicer but has a textured grip. I did a couple of coats over the reflective coating in a 16x16 area and I went up a day...
  17. Roofing/Siding
    What should I use to re-coat a 16x10 flat roof over a bedroom (currently has smooth bitumen)? I don't think it's been upkept since the bedroom was added on in 2008. I haven't owned the house that long and it was a foreclosure prior. I'm getting a little staining in the ceiling drywall...
  18. Roofing/Siding
    I've attached a photo but I had my roof redone and the contractor applied GAF Liberty product (which is a self adhering rolled roofing) to a small flat section of my roof. He actually removed the membrane which was there and unfortunately the peel and stick he installed (as it's referred to in...
  19. Roofing/Siding
    I'm looking to re-do my flat roof in a semi detached home in Toronto; one of the contractors said that I can put it on top of the existing one (it looks like it has 2 roof already). This would save me 50% on price. Any advise on whether it's worth tearing down the current one? Thanks! JK
  20. Roofing/Siding
    Hello everyone, I am the new owner of a SF home with a 1200 sq. ft. flat roof that is currently tar and gravel. The roof on it now was done in 1992 and is at the end of its life. The roof has a good slope on it and I don't have leaks as far as I know but it hasn't rained much since i've lived...
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