How Much Will A Dark Shingle Heat Up An Attic

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Home Improvement Gurus Stifling Attic Heat Tigerdroppings Com Roofing Roof Terracotta Roof

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Residential Attic Ventilation Contractors Akron Cleveland Ohio Attic Ventilation Attic Renovation Attic Remodel

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Attic View Roof Deck Rafters Lookouts Fascia And Plywood Soffit Fascia Roof Home Maintenance

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Why It S Important To Replace Insulation When Redoing The Roof Insulation Roof Roofing

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Installed With Shingles Attic Renovation Attic Doors Attic Loft

Installed With Shingles Attic Renovation Attic Doors Attic Loft

In general lighter colored roofs reflect away heat rays from the sun but dark colored roofs absorb much of that heat and transfer it into the rooms below.

How much will a dark shingle heat up an attic.

Your attic can become super heated in ways that have little to do with your roof. However when you get into the grays browns and tans there is only a 2 3 degree difference. This is a fact so when heat builds up in the rooms below this heat will rise to your attic where it will become trapped. The roofing material also affects how reflective your roof is.

A radiant barrier can help by reducing the amount of that heat that radiates downward. Also an 8 degree increase in attic temperature does not mean an 8 degree increase in your house. Darker colored shingles on the other hand such as charcoal will absorb much of that heat causing the temperature in your attic to rise. A federal study has shown that the plywood under dark roofs in direct sunlight is consistently 10 to 15 f hotter than the plywood boards under light colored roofs.

However during the evening the black shingled roofs also tended to lose heat faster than did the white shingled roofs. So your shingles are going to get overheated and possibly even deteriorate faster no matter what the color of your roof is. They found that dark shingles are 27 hotter than white shingles. When attic areas are poorly ventilated excessive heat can cause blisters to form especially on newer roofs.

If your home has an attic or overhead crawl space heat rising up from below can cause blisters and cracks in asphalt roofing shingles. A study by the united states department of agriculture found that wood roofing panels under black shingles were ten to fifteen degrees warmer than the same panels under white shingles on a sunny day. But everyone agrees that dark shingles are hot shingles. Interestingly enough during the evening the darker shingled roofs tend to lose heat faster than lighter shingled roofs.

When comparing a totally white shingle to a totally black shingle the attic temperature may increase 8 10 degrees. However except for reflective coated shingles some energy star rated shingles for instance or white or bare metal there is only about a 10 15 difference in the amount of energy absorbed between black and say a tan or beige and only a few percent between black and a gray red dark blue green or brown. Or course color isn t the only aspect of your roof that affects home temperature. Heat from the sun isn t your roof s only enemy.

As you ve probably heard from many the color of your roof does affect how much heat is absorbed into your attic. For most recorded locations the black shingled roofs were generally 10 f to 15 f warmer than identical white shingled roofs on sunny days. Yes black will be hotter. There it radiates down into the attic heating up the insulation the framing the ductwork and the boxes of christmas tree ornaments.

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