The ambient temperature can be colder while the roof surface is 40 degrees.
Installing roof shingles in cold weather.
Malarkey roofing products as well as the asphalt roofing manufacturing association arma advise caution when installing asphalt shingles in temperatures at or above 90 f 32 c.
One of the benefits of installing shingles in the winter in colorado springs is the abundant sunshine.
The sealant on shingles installed in cold weather may not activate right away.
According to roofing construction estimating by daniel benn atcheson the best temperatures to install asphalt shingles is between 40 and 85 degrees f 4 and 26 degrees c.
If you re wondering what temperature is too cold to install shingles here s the answer.
Here are some things we would watch out for in cold weather.
The suns radiant energy is of significant importance in heating the roof surface to a minimum of forty degrees in the winter.
In winter applications there may be nearly invisible ice or frost.
Epdm rubber membrane roofing materials are even more temperature sensitive than asphalt composition shingles.
It may not activate until spring.
If you re installing roofing shingles in cold weather below these temperatures your shingles may become brittle and more prone to breakage.
In those conditions a shingle s asphalt coating softens and may be scuffed and damaged as shingles are fastened or walked on.
Shingles can be installed in cold weather if it is done carefully.
Recommendations for installation of asphalt roofing shingles in cold weather be sure to follow the manufacturer s installation instructions carefully as most building codes require.
Extra care should be taken when handling and or installing asphalt shingles when the air and surface temperatures are at or below 40 f 5 c.
Asphalt material loses its ability to bend in cold weather.
If winter installation is unavoidable most asphalt shingle manufacturers require a specialized adhesive manually applied to each shingle for temperatures below 40 f 4 celsius.
When shingles become more brittle they are more likely to be over driven by nails.
Roofing shingle providers require that you use a special adhesive in temperatures below 40 degrees for this exact reason.
Shingles installed in cold weather may not immediately seal until warmer temperatures are present for the sealant to activate.
If shingles are applied below 40 without the specialized adhesive you risk a voided warranty.
Be very careful when working on sloped roofs.
You can still properly install shingles even below 40 f as long as you follow some rules and recommendations for cold weather installations.
The ideal temperature for installing asphalt shingles is between 40 f 85 f 4 26 degrees celsius.