In order for shingles to sit and form properly it should be at least 36 degrees fahrenheit 2 2 celsius outside when laying shingles.
Attic too hot for shingles.
Note excessive heat.
And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature.
According to most manufacturers any roof temperatures above 100 degrees f will cause the tiles to become fragile and the sealant to become too soft.
If it s 90 degrees outside the attic temperatures shouldn t exceed 110 according to home.
If hot air is allowed to sit in your attic it could overheat the shingles on your roof and cause damage.
If the sun is especially hot the adhesive on the roofing may also dry out before you can get the roofing properly lined up and placed.
Tell if your attic is too hot take its temperature.
Shingle seal down adhesives will also soften as shingles get hotter making them harder to separate.
Asphalt shingles on a roof with insulation at the roof deck and no ventilation are hotter than shingles on a vented attic.
Shingles tend to separate easier when pulled from the bundle granule side up.
While the sealant will still activate it will not harden immediately.
Fsec did a literature review of the research on the need for attic ventilation and found that shingle temperatures are slightly higher but lifetime is not much lower.
An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.
Having a properly vented attic is the best way to keep attic cool because it allows the hot air to escape during the summer.
Recommendations for heat similarly it can be too hot to properly install and seal the shingles.
Uring roof loading and once on the roof keep shingle bundles flat.
Compared to an uninsulated roof the average temperature in shingles above insulated sheathing ranged from two degrees to nine degrees fahrenheit hotter well within specifications cited by shingle.
Ridge vents help.
It may be necessary to use a hose and spray a stack of shingles with cold water.
Hang an outdoor thermometer in your attic making sure its range reaches at least 130 degrees.