Roof Temperature In Summer

The rooftop temperature results from two different properties.

Roof temperature in summer.

For more exposure temperature histories for shingles the reader is referred to publications by the national bureau of standards nbs 1979 and blackenstowe 1987. To avoid these issues avoid roofing in temperatures below 40 degrees f. 1989 metal roof temperatures reached as high as 163 f 73 c during january and may in eastern tennessee. An unventilated attic can reach 150 degrees in the heat of summer 50 degrees higher than it should be.

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. At these temperatures asphalt shingles can melt. It s the ultraviolet radiation that they re subjected to all the time. 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.

Fiberglass shingles are some of the most likely shingles to break in cold weather. 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. Especially ice and heavy snow. 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.

That s why many homeowners have new roofs fitted or require extensive repairs because of winter weather. The average temperature difference through the day was about 2 degrees f. The adhesive on shingles may also fail to stick in cold weather and may not become fully adhered to the roof until summer. The temperatures histories discussed hereafter pertain to wood.

What kills shingles isn t so much the temperature. Roof temperature in summer how can high temperatures affect your roof. 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. This also speeds up the damaging effect of the uv rays and causes other problems.

An overheated attic can bake asphalt shingles on the roof and cause them to deteriorate. Color of your roof. 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. An unshaded roof can reach temperatures of as much as 65 to 90 c.

According to the u s. Your roof bears the brunt of the sun s force and is exposed to a lot of heat during the summer.