The waterproofing elements of roof expansion joints currently are looped membranes.
Sheet metal roof expansion joints.
The expansion joint prevents condensation by insulating against internal building temperatures.
Tear the tape off at the start of the seam and begin taping again on the opposite side of the metal sheet.
Also the continuous cleat protects the perma tite expansion joint from wind driven rain.
The science thermal expansion occurs when heat is added to most materials causing the material to expand.
Copper or stainless steel is recommended lock and seal all joints solder joints on slopes less than 3 12.
Our roof covers have extensive model options for flat and built up roofs.
Uniquely addresses wall joint to roof joint interface uv stable tpv or pvc for broadest liquid and sheet membrane compatibility what s different.
Roof to roof version.
Perma tite expansion joints are ideal for allowing thermal movement and condensation control between two roof systems.
Standard sizes to fit expansion joint opening of 2 3 or 4.
4 apply a generous bead of waterproof roof caulk to both edges of every 6 inch wide.
Technical paper architectural sheet metal manual.
Custom sizes upon request.
Get moisture protection from the top down with roof covers from construction specialties.
Sheet metal components enable low cost design variations in size to fit job conditions.
Exterior cap is available in 24 prefinished kynar 500 colors.
Standing seam roof systems were designed to allow roof movement and should be specified when roof movement is expected to be a problem due to the design of the building and secondary structurals.
Browse roof expansion joint and roof expansion joint covers today.
We do a lot of long length roofing and while fixing the sheets is a pretty quick process expansion joints can take time especially if you haven t got a good system to use.
The loops either hang down into the joint in the case of metal cover systems or are humped up by means of.
Anodize finish available upon request.
We were working with sheet lengths up to 29 3 metres so thermal expansion was an issue.