Roof Temperature In Summer

Fiberglass shingles are some of the most likely shingles to break in cold weather.

Roof temperature in summer. At these temperatures asphalt shingles can melt. Let s look at the four most important roofing factors that affect the temperature of your home. Department of energy the temperature in your attic in the height of the summer can vary by up to 50 degrees based on what material you choose for your roof. An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate.

For more exposure temperature histories for shingles the reader is referred to publications by the national bureau of standards nbs 1979 and blackenstowe 1987. Your roof bears the brunt of the sun s force and is exposed to a lot of heat during the summer. It s the ultraviolet radiation that they re subjected to all the time. This also speeds up the damaging effect of the uv rays and causes other problems.

And it can cause your air conditioner to work harder than it needs to and send your energy bills soaring with the temperature. On roof summer temperatures for asphalt shingles 10 76 c about 50 f to 170 f research on shingle durability tests asphalt shingles at temperatures typically up to a maximum of about 170 f well below the temperatures that occur during manufacture of the product. Roofs that absorb more heat in the summer will also absorb more heat in the winter which can actually be a wonderful positive when it comes to melting snow and keeping your home toasty warm in the winter. The key factor in how the type of roof you install in house located in virginia will affect the temperature inside your home is the material you use.

1989 metal roof temperatures reached as high as 163 f 73 c during january and may in eastern tennessee. Especially ice and heavy snow. This fsec study didn t look at shingle lifetime but i think that adding 9 degrees to a temperature of 150 degrees won t make much difference. The adhesive on shingles may also fail to stick in cold weather and may not become fully adhered to the roof until summer.

An unshaded roof can reach temperatures of as much as 65 to 90 c. That s why many homeowners have new roofs fitted or require extensive repairs because of winter weather. Roof temperature in summer how can high temperatures affect your roof. The temperatures histories discussed hereafter pertain to wood.

The average temperature difference through the day was about 2 degrees f. The rooftop temperature results from two different properties. You might already know how many issues winter weather can cause for your roof. The ability of the material to reflect the sun s energy back into the atmosphere called solar reflectance and the amount of heat the material rejects instead of absorbs called thermal emittance both are measured on a scale from 0 to 1 with higher scores translating into cooler roofs.

To avoid these issues avoid roofing in temperatures below 40 degrees f. An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.