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Old 09-02-2007, 08:25 PM   #1
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low slope roof question

any help would be appreciated i am not a roofer .my question i have a low slope roof bldg 40' long 20' wide roof slopes one block or 8" side to side with 2 blocks above that on front and side wall i am considering roll roofing and cementing it right to the deck with about 6-8" overlap and well cemented and flashing cut into the block or under the cap tiles on top currently leaking bad and i am not a roofer but wondered what advise you can give me as to whether im on track or all wet thx


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Old 09-03-2007, 10:13 AM   #2
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Use a professional product. Modified bitumen, PVC, EPDM, SPF, etc. The roll roofing products do not fare well except as landfill.


www.roseroofing.net/ Free inspection within 12 miles
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Old 09-03-2007, 01:33 PM   #3
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90 Lb roll roofing may feel cheap right now , but cheaper is a tarp and may last you as long.

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Old 09-04-2007, 07:26 AM   #4
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I Have a dormer with 1 foot rise per 12 foot run - Roll roofing applied as per instructions with felt, 19" overlap, etc lasted 4 - 5 years (twice) before leaking, bubbles showed up earlier. Frustated, on the last replacement, I skipped the felt and applied the roll roofing directly to the plywood with full coverage of roof adhesive patch on a 90 degree day in the sun (the goop was hot enough to be runny like the thinner roof coating normally is). No bubbles or leaks after ten years, only the typical loss of the gravel. Of course when it does need replacing, the plywood will also have to be replaced, but for an extra hundred dollars who cares if it lasts three times plus as long as long. I did use a 19" overlap, so there is double coverage, but at least the roofing material is glued to something solid instead of just tar paper.
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Old 09-04-2007, 10:39 PM   #5
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look at CERTAINTEED FLINTLASTIC,OR GAF LIBERTY,both have nailable base sheet,a nice cap sheet,and most important instructions on the box!ity`s a lot better than standard roll roofing or SIS(19" SELVADGE)
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