Roof Expansion Joint Flashing

Expansion joints in roofs require wood curbs around each roof area.

Roof expansion joint flashing.

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. Copper counterflashing is folded into this edge. Integration and flashing into roof membranes. A roof expansion joint emseal roofjoint is a patented dual seal double flanged extruded thermoplastic rubber system for sealing expansion joints in roofs.

Copper base flashing is double folded and nailed to the top surface of the curb which is cut to a slope of 3 per foot. In general the top surface of the curbs should be sloped away from the joint to shed condensation and moisture onto the roof. The curbs should extend at least 8 or 10 if a cant is used above the adjacent roof. Get moisture protection from the top down with roof covers from construction specialties.

This selection includes expansion joint covers edge metal systems retrofit drains and tie in flashing systems. The waterproofing elements of roof expansion joints currently are looped membranes. Its upper edge is folded over and long enough to accommodate maximum movement. Its lower edge is held by a continuous edge strip.

The loops either hang down into the joint in the case of metal cover systems or are humped up by means of. Browse roof expansion joint and roof expansion joint covers today. Architectural drawings along with csi format short and long form specifications and details are also available.