1x10 Mineral Granule Sbs Asphalt Roofing Membrane Mineral Cap Sheet

SBS Asphalt Roofing Membrane High Performance Mineral Cap Sheet

Mineral cap sheet introduction:

A cap sheet is a building material used in built-up roofing, or BUR. BUR applications are used for flat roof surfaces, and consists of several layers of material designed to create a watertight surface. Each layer includes asphalt or tar-caoted layers of polyester or fiberglass mats.The more layers, or plies used in built-up roofing, the more effectively the surface will be able to resist leaks over time. A surfacing component, such as a cap sheet, is used to cover and protect these lower layers and extend the life of the roof.

Mineral cap sheet benefits:

Over time, constant sun exposure weakens asphalt and causes it to dry out. As it dries out in the sun, a BUR roof becomes brittle and cracks. Rain seeps into these cracks and eventually penetrates the inside of the building, leading to leaks, mold, and rot. The cap sheet not only protects the asphalt from the sun, but also acts as an extra ply to further increase the integrity of the roof. 

Fields of application:

Building roofs, basement, reservoir, refuse landfill, tunnel, bathroom, parking lot, granary, bridge, dam.

Mineral cap sheet features:

1.Granulated, uncoated finish.

2.Handles like standard product-no special installation requirements.

3.Low maintenance.

4.More consistent.

5.More aesthetically pleasing.

Installation tips:

Mineral surface cap sheet may be applied in either hot asphalt or approved cold adhesive. Rolls should be stored upright, off the ground, and completely protected from the weather. Roof decks shall be structurally sound, dry, smooth and meet or exceed minimum requirements of the deck manufacturer. Roof deck shall provide positive drainage.

Specifcation: