Waterproof Built Up Roof

Built up roofing if properly installed and maintained a commercial built up roof can last 40 years.

Waterproof built up roof.

A built up roof is usually fabricated on the job by laminating layers of felt with asphalt or coal tar then topping with gravel. Built up roof membranes referred to by the acronym bur have been in use in the u s. It offered to use over galvanized steel built up bituminous roofs concrete wood polyurethane foam and asphalt roof shingles. Bur systems generally are composed of alternating layers of bitumen and reinforcing fabrics that create a finished membrane.

Unlike shingles shakes slate and tiles built up roofs must be absolutely waterproof a quality that makes build up roofs a good candidate for flat roof situations. When estimating the cost of waterproofing a roof the building owner or property manager must take in consideration that material cost and labor cost are both contingent on this selection. Seamless and waterproof the continuous solid surface does not require joints or seams removing the most vulnerable area for leaking. The average built up roof will have between three and five plies not including the waterproofing membrane layers.

Many types of waterproof membrane systems are available including felt paper or tar paper with asphalt or tar to make a built up roof other bituminous waterproofing ethylene propylene diene monomer epdm rubber hypalon polyvinyl chloride liquid roofing and more. How much it costs to waterproof a flat roof. Built up roofing is generally low maintenance and therefore costs little to maintain over its life. The dimension of the heng s rubber coating is 6 5 x 11 9 x 7 5 inches with 5 pounds in weight.

Built up roofing bur systems are used to it. Reflects uv rays provides ultra violet. Thanks to the aggregate top layer they are also fire resistant. The cost to waterproof a flat roof depends on the choice of liquid applied roof system.

People have been doing it to them for more than 160 years. Built up roofs tend to provide excellent waterproofing and ultra violet protection. These roof systems are commonly referred to as tar and gravel roofs. For more than 100 years.

There are a few other benefits of built up roofing systems.