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Roofing Contractors Forum
loki
Member since Jun-25-08
1 posts, Rate this user |
Jun-25-08, 03:36 PM (EST) |
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"ventilation and shingle roofing"
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I was a roofer some time ago (ten years ago) working for a Chicago based shingle and tar roofing company, I know that ventilation is a key component in the life expectancy of shingles; This is why when moving to Utah, i noticed shingle installation jobs that were burned to the roof. They looked as if the sun just melted them together, knowing the shingles couldn't 40 years old, they did resemble something prehistoric. I then noticed that there were no ventilation mask on any of the roofs. Because Salt Lake City is consider apart of desert climate I was thinking that was the cause, but now i am wondering if no ventilation lead to faster wear on shingles. any one have a answer to this? My neighbors are getting their roof done and I don't see one shaft anywhere...whats up with that out here? |
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Arrowhead32
Member since Apr-2-12
2 posts, Rate this user |
Apr-02-12, 01:43 PM (EST) |
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2. "RE: ventilation and shingle roofing"
In response to message #1
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Thanks for the source! I ran into some problems with unventilated shingles on a roof that was exposed to sunlight for about 10 hours out of the day and had to be patched sooner than I wanted. My team and I eventually decided on reusing old shingles from the previous roof as patch work so the client didn't have to pay too much for maintenance costs. |
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loweseibe
Member since Apr-7-12
1 posts, Rate this user |
Apr-07-12, 02:01 AM (EST) |
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3. "RE: ventilation and shingle roofing"
In response to message #2
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>Thanks for the source! I ran into some problems with
>unventilated shingles on a roof that was exposed to
>sunlight for about 10 hours out of the day and had to
>be patched sooner than I wanted.
>
>My team and I eventually decided on reusing old
>shingles from the previous roof as patch work so the
>client didn't have to pay too much for maintenance
>costs. This is also a good idea! The client have to pay less and the old shingles will be reused also instead of throwing them in a corner. Google apps plug-ins |
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roofmasternet
Member since May-3-13
2 posts, Rate this user |
May-08-13, 11:24 AM (EST) |
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5. "RE: ventilation and shingle roofing"
In response to message #0
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Proper attic ventilation is essential. It prevents condensation and dry rot within the attic wood structure and wood substrates, prevents mould, and prevents warping of the plywood. Proper venting also extends the life of the shingles and roof membranes. Provide ventilation in a ratio of approximately 1:300 of the insulated attic area. Ideally air should enter the vented soffit, rise as heated in the attic, and exit near the peak of the roof.
Some people incorrectly believe that ventilation is only to keep the attic cool on hot summer days, and have even been seen to close their roof vents off for the winter. Nothing can be further from the truth. One should vent the roof at all times of the year, day and night, in order to keep the attic temperature as close as possible to the outside temperature. Most importantly, the ventilation is absolutely necessary to prevent winter ice damming problems on sloped roofs. <a href="http://roofmaster.net";>Roofing Company Ottawa</a> |
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