Expand o gard expansion joints are flexible waterproof closures for vertical building walls designed to accommodate movement between building components caused by thermal settlement wind flex and seismic forces.
Perpendicular roof expansion joint.
Get moisture protection from the top down with roof covers from construction specialties.
Expansion joints in roofs require wood curbs around each roof area.
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4 12 10 16 cm 30 48 cm standard special sizes are available up to 54 1 37 m wide membrane covers.
Next best roof expansion joint design.
Protect appearances by making expansion joints dissappear with inpro s exterior expansion joint systems.
The curbs should extend at least 8 or 10 if a cant is used above the adjacent roof.
In general the top surface of the curbs should be sloped away from the joint to shed condensation and moisture onto the roof.
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Our roof covers have extensive model options for flat and built up roofs.
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.
If the designer chooses not to specify the best system the next best is to use roofjoint on the roof and seismic colorseal with closures in the walls.