Sheet Metal Roof Expansion Joints
4 apply a generous bead of waterproof roof caulk to both edges of every 6 inch wide.
Sheet metal roof expansion joints. We were working with sheet lengths up to 29 3 metres so thermal expansion was an issue. The waterproofing elements of roof expansion joints currently are looped membranes. Roof to roof version. Technical paper architectural sheet metal manual.
Tear the tape off at the start of the seam and begin taping again on the opposite side of the metal sheet. Anodize finish available upon request. 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.
Copper or stainless steel is recommended lock and seal all joints solder joints on slopes less than 3 12. Get moisture protection from the top down with roof covers from construction specialties. 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. Presents practical troubleshooting and corrective tips for typical problems of roof panels gutters downspouts fascia copings flashing ridges and hips valleys expansion joints penetrations fasteners and soldering.
Uniquely addresses wall joint to roof joint interface uv stable tpv or pvc for broadest liquid and sheet membrane compatibility what s different. Our roof covers have extensive model options for flat and built up roofs. The science thermal expansion occurs when heat is added to most materials causing the material to expand. 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.
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. The expansion joint prevents condensation by insulating against internal building temperatures. The loops either hang down into the joint in the case of metal cover systems or are humped up by means of.
Custom sizes upon request. Also the continuous cleat protects the perma tite expansion joint from wind driven rain.