Flat Bug Or Flat Built Up Gypsum Roof

It was first known as composition roofing and started in the 1840 s.

Flat bug or flat built up gypsum roof.

More to that these materials are alternated with hot tar as well as ballasted with a layers of what resembles the smooth and flat river stones. Exceptionally pliable easy to handle and lays flat. Reflects uv rays provides ultra violet. All gypsum board end joints should occur over and be supported by the roof framing.

Seamless and waterproof the continuous solid surface does not require joints or seams removing the most vulnerable area for leaking. 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. Securock brand gypsum fiber roof board s unique fiber reinforced homogenous composition gives the panel strength and water resistance through to the core. Well this type of low sloped roof is one that is crafted from either 3 or more layers of materials that are water resistant.

It s made up of 3 to 5 laminated layers hot tar and roofing felt. Permaply 28 is designed for use as the first or base sheet in built up roofing or modified bitumen roof assemblies. First let s define what a tar gravel or built up roof bur is. Nail the gypsum board to each framing member with two minimum 4d common nails or 13.

Makes it suitable as an intermediate or ply felt in cold applied built up and modified bitumen roof assemblies. Both solutions work on a little to no slope type of roof. Employs advanced technology in delivering an exceptionally strong high performance roof board for use in low slope commercial roofing systems. Built up roofing is one of the oldest and most reliable ways of installing a new roof.

B u r s come in two basic types asphalt and coal tar and three basic components 1 the waterproofing component 2 the reinforcing component and 3 the surfacing component. With this type of a roof in your premises you get to. Apply the gypsum board perpendicular to and on top of roof trusses or rafters prior to the installation of combus tible roof sheathing. The build up roof.

Let s look at both solutions. 15 9 mm type x gypsum board over the en tire roof area.