Laying Out Rubberall EPDM Membrane

Unroll the EPDM membrane over the substrate so that the sheet is in the desired position and is wrinkle free. If more than one sheet of membrane is required, always place the first sheet of membrane at the low point on the roof.

Subsequent sheets should overlap the prior sheet by at least 10.16cms moving up the roof, if using seam tape or 15.24cms if using rubber to rubber adhesive.

Care should be taken to ensure membrane overhangs the perimeter of the roof at least 7.62cms.


Allow the EPDM membrane to relax. Depending on weather conditions, this could take from 15 to 30 minutes.

Use strips of duct tape on the upper edge of the membrane to stop the membrane from moving.