The loops either hang down into the joint in the case of metal cover systems or are humped up by means of.
Sheet metal roof expansion joints.
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.
Get moisture protection from the top down with roof covers from construction specialties.
Tear the tape off at the start of the seam and begin taping again on the opposite side of the metal sheet.
Copper or stainless steel is recommended lock and seal all joints solder joints on slopes less than 3 12.
The waterproofing elements of roof expansion joints currently are looped membranes.
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.
We were working with sheet lengths up to 29 3 metres so thermal expansion was an issue.
Our roof covers have extensive model options for flat and built up roofs.
Browse roof expansion joint and roof expansion joint covers today.
Technical paper architectural sheet metal manual.
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.