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.
Sheet metal roof expansion joints.
Uniquely addresses wall joint to roof joint interface uv stable tpv or pvc for broadest liquid and sheet membrane compatibility what s different.
Get moisture protection from the top down with roof covers from construction specialties.
We were working with sheet lengths up to 29 3 metres so thermal expansion was an issue.
The loops either hang down into the joint in the case of metal cover systems or are humped up by means of.
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 waterproofing elements of roof expansion joints currently are looped membranes.
Our roof covers have extensive model options for flat and built up roofs.
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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.
4 apply a generous bead of waterproof roof caulk to both edges of every 6 inch wide.
Technical paper architectural sheet metal manual.