Built up roofs or burs also called a tar and gravel roof is a well established and popular style of flat roof that is made up of alternating layers of roofing felt or fiberglass and asphalt that is applied with heat which combine to make a long lasting sturdy roofing system.
Flat rolled tar roof.
Built up roof bur the traditional hot tar and gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone.
Rolled roofing or roll roofing also known as msr comes in rolls of 100 square feet.
Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you build the roofs right and maintain them using commonsense rules.
So in terms of quantity a roofing roll is about the size of one composite shingle square.
Cutting through the tar material and sheathing will typically require a depth of 1 to 1 1 4 inches.
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Black jack eterna kote 4 75 gallon silicone reflective roof coating lifetime warranty item 484330.
3 hold the saw s blade 1 inch above the roof remove the blade guard and depress the trigger.
Roofing tar will also protect your roof from wind and from snow and water which can collect on a flat roof.
However tar is an unsustainable product.
Rolled roofing is easy to obtain and can be found at all home improvement stores.
Ft sbs self adhering cap sheet roll for low slope roofing in black.
For pricing and availability.
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Owens corning deckseal sa sbs cap 39 375 ft w x 32 833 ft l 100 sq ft shasta white roll roofing.
One msr roofing roll is usually about 36 feet long by 36 inches wide.
Roofing tar is a good choice for a flat roof as this kind of material is highly resistant to the ultraviolet rays from the sun.
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Things you ll need rolled roofing razor knife trowel brush hose measuring tape ladder roofing cement 1 inch 2 5 cm long roofing nails hammer chalk.