Coal Tar Pitch Roofing Materials

Coal tar pitch is a thick black liquid that remains after the distillation of coal tar.

Coal tar pitch roofing materials.

Coal tar pitch membranes using coal tar saturated organic felts is one of the oldest systems listed in table 2. Coal tar pitch is melted on site in an industrial kettle and applied to the roof as a hot liquid. Both coal tar and coal tar pitch contain many chemical compounds including carcinogens such as benzene. Coal tar s unique molecular structure provides a system that resists water and vapor penetration insect damage chemical attack uv exposure and most elements considered common enemies to other roof membrane systems.

An important consideration in tarred flat roof quality is knowing that the common term tar applies to rather different products. Durapax specializes in coal tar roofing systems built up with multiple layers of coal tar coated glass felts or coal tar organic felts and hot mopped coal tar roofing pitch finished with a coal tar flood coat and gravel. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. Tar or pitch which is derived from wood resins coal tar asphalt and bitumen.

A roofing demolition blade built to cut gummy materials including tar and gravel modified roofing coal tar pitch and more. For circular saws and worm drive saws. Clog free warp free and crack free. Construction definition coal tar pitch roofing.

Built up roofing in which coal tar pitch forms the waterproofing component of the roof membrane. Its superior resistance to ponding water eliminates the costly use of tapered insulation. Coal tar pitch is produced by distilling or heat treating coal tar which is a by product of the production of coke or coal gas. Everlasting carbide teeth with wide kerf.

It is used as a base for coatings and paint in roofing and paving and as a binder in asphalt products. These systems perform very well historically but are limited to very low slope applications and must be gravel surfaced because of the low viscosity of coal tar pitch at normal rooftop temperatures. Historically coal tar pitch was used as a component on the first sealed roads has served as a heating element and was used to manufacture paints synthetic dyes and photographic materials. It is solid for all practical purposes at room temperature.

2 9 coal tar pitch built up roofing. Durapax specializes in coal tar roofing systems built up with multiple layers of coal tar coated glass felts or coal tar organic felts and hot mopped coal tar roofing pitch finished with a coal tar flood coat and gravel.