Sheet Metal Roof Expansion Joints

Standard sizes to fit expansion joint opening of 2 3 or 4.

Sheet metal roof expansion joints.

We were working with sheet lengths up to 29 3 metres so thermal expansion was an issue. Browse roof expansion joint and roof expansion joint covers today. Tear the tape off at the start of the seam and begin taping again on the opposite side of the metal sheet. Our roof covers have extensive model options for flat and built up roofs.

The expansion joint prevents condensation by insulating against internal building temperatures. Anodize finish available upon request. 4 apply a generous bead of waterproof roof caulk to both edges of every 6 inch wide. Sheet metal components enable low cost design variations in size to fit job conditions.

Also the continuous cleat protects the perma tite expansion joint from wind driven rain. The loops either hang down into the joint in the case of metal cover systems or are humped up by means of. Copper or stainless steel is recommended lock and seal all joints solder joints on slopes less than 3 12. Roof to roof version.

E coefficient of linear expansion of copper 0 0000098 per degree fahrenheit dt temperature change in degrees fahrenheit calculation of movement is rarely required in short roof pan construction since the details shown here can accommodate thermal movement of short pans. The waterproofing elements of roof expansion joints currently are looped membranes. Flat seam roofs used in low no slope areas or areas subject to flooding or standing water typically made from 20 x 28 sheets relative geometry is important fro expansion and contraction sheet use efficiency and wind load. The science thermal expansion occurs when heat is added to most materials causing the material to expand.

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. 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. Perma tite expansion joints are ideal for allowing thermal movement and condensation control between two roof systems. Uniquely addresses wall joint to roof joint interface uv stable tpv or pvc for broadest liquid and sheet membrane compatibility what s different.

Custom sizes upon request. Get moisture protection from the top down with roof covers from construction specialties.