+ Reply to Thread
Results 1 to 7 of 7

Thread: Flat roof

  1. #1
    Join Date
    Nov 2007
    Location
    Eastern WA State
    Posts
    5

    Default Flat roof

    We live where we have alot of wind storms. I need to re-roof our shop and old barn. They were roofed with rolled roofing, wind just keeps blowing it all off. What can I use that will withstand the wind storms here in Eastern WA?
    "Life Goes On . . . One Day at a Time!"

  2. #2
    Join Date
    Mar 2008
    Location
    nova scotia, canada
    Posts
    1,522

    Default Re: Flat roof

    how old is the roofing. if its new and it keeps blowing off it sounds like a shoddy install or the roof decking was getting bad thus making it so the roofing material wouoldnt properly take

    if you can snap some pics and post them
    fire up the saw and make some dust

  3. #3
    Join Date
    Mar 2011
    Location
    Atlanta Georgia
    Posts
    2

    Default Re: Flat roof

    Fleeceback fully adhered EPDM or TPO. The fleece will add significant strength, and provide superior wind uplift resistance.

  4. #4
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,969

    Default Re: Flat roof

    I agree with the shoddy install method.

    Down here in Hurricane Alley, we use 'torch-down' for flat roofing, where the tar on the underside of the membrane is melted with a torch. This adheres the roofing membrane to the roof so well it isn't going anywhere.

  5. #5
    Join Date
    Mar 2011
    Location
    Boise, Idaho
    Posts
    7

    Default Re: Flat roof

    I would not recomend a EPDM or TPO roof if you have trees or anything else that places a lot of debris on the roof. A flying branch can easily poke a hole in a rubber roof. The torch applied, or self adhered, modified bitumen roofs are thicker and stronger than any rubber roof. Most torch applied and self adhered are both installed using a nail on base sheet so the wind proofing is going to be in anchoring that base with plenty of nails and making sure that the edges are fully adhered to the metal trim. I have heard that Certainteed is manufacturing a self adhered base sheet for all modified bitumen roofs now so that may also be an excellant option for increased wind resistance. If your outbuildings have a slope of 3/12 or better, your best option is laminated shingles. Manufacturers offer wind warranties on these shingles for windspeeds up to 150 miles an hour.

  6. #6
    Join Date
    Feb 2011
    Posts
    10

    Default Re: Flat roof

    Every style of roof has its own benefits and disadvantages.
    flat roof may protect thunder or air movement but it can't protect from leaking rains water as another shape may do.

  7. #7
    Join Date
    Mar 2009
    Posts
    1,387

    Default Re: Flat roof

    Rolled roofing is being sold with a lot less asphalt so consider ordering a thicker roll roofing... Second how is it installed with a 3 inch overlap and tared at each overlap with no surface nailing? Are the roofs really flat? If so might consider a 2 layer modified bitumen roofing and noting on the contract to high wind nail (extra fasteners designed to withstand wind) the base layer...

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •