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Keeping this in consideration, how much does roofing tar cost? Image: A three dimensional cut-away of a BUR roof. Just a few months of water penetration can cause major deterioration of a roof membrane. And once a roof membrane is compromised, water can seep in and quickly cause large areas of a roof to deteriorate. Cooking a roof membrane like this can cause it to tear and crack prematurely. In the case of a BUR roof, without reflective coatings, the surface temperature can exceed 150 degrees Fahrenheit on a summer day. This tug of war causes wear and tear on the roof membrane, especially near the edge of a roof. This is in sharp contrast to the rest of the roof membrane, which will not shrink or stretch as much, due to underlying insulation. This causes stretching of the membrane since the roof tends to heat or cool faster in these areas, causing both excessive contraction and expansion of the roof membrane. ![]() Most contractors will not recommend a BUR roof is installed with underlying insulation, since the roof membrane is usually stretched towards the edges of the roof where there is no insulation. Bur Tar & Gravel Or Other Asphalt Roofs Perform Poorly With Insulation Homewyse strongly recommends that you contact reputable professionals for an accurate assessment of work required and costs for your project – before making any decisions or commitments. Homewyse estimates are NOT substitutes for quotes from qualified vendors. The estimates should only be used for preliminary planning. ![]() Homewyse Cost Guides estimate approximate cost ranges for basic work in typical conditions.
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