Roof Expansion Joints Details

Expand o flash expansion joint covers are flexible weather proof exterior covers for expansion joint openings and are an effective flexible closure for a wide variety of standard and special applications.

Roof expansion joints details.

At firestone building products we offer more than just roofing and building solutions. This aluminum roof cover is comprised of extruded aluminum components injection molded turn bar duroflex gaskets and a polyethylene vapor barrier. View and learn more about epdm system details. In general the top surface of the curbs should be sloped away from the joint to shed condensation and moisture onto the roof.

615 series flush mount exterior expansion joints. The curbs should extend at least 8 or 10 if a cant is used above the adjacent roof. Watertightness is achieved through positive integration with the roofing membrane and a purpose designed system for transitioning between the joint in the roof and joints in walls. Joint sizes range from 1 to 2.

The waterproofing element of most other roof expansion joints is a looped membrane. We offer a partnership and complete solution that lasts long after your project is finished. Expansion joints in roofs require wood curbs around each roof area. Each expand o flash cover is a combination of a flexible rubber membrane supported by a closed cell foam to form flexible bellows with two metal flanges adhesively and mechanically combined to the bellows by a patented bifurcation process.