Permaroof100 Liquid EPDM Rubber: Application to Pitched Roofing

In this guide, we are going to show you how to apply the liquid EPDM rubber system to pitched roofing with the addition of Permathix.

Permathix effectively removes the self-levelling compound element of Permaroof100 liquid EPDM, which enables application to a sloped or pitched roofing surface. Further resource guides are available in the resource centre, including a full, step-by-step guide to complete application of the innovative waterproofing system for flat roofing.

If the surface you want to cover is pitched, or even vertical, you can mix Permathix and Permaroof100 to take the self-levelling element out of the product and avoid runs or drops.

Permathix is available in 1-litre tins. Usually 250ml of Permathix per 25kg drum is sufficient.

Accelerator can still be used with Permathix. Mix the Permaroof100 Liquid EPDM with accelerator as in flat surface applications, before adding the Permathix.

After mixing the accelerator, following the same process as aforementioned for flat surfaces, add the Permathix – usually 250ml of Permathix per 25kg drum is sufficient.

Mix the Permathix into the Permaroof100 (whether accelerated or not) by hand until thoroughly blended. Ensure the Permathix is fully incorporated.

Apply the Permaroof100 Liquid EPDM with a roller to the pitched surface and continue the project following previous steps in this installation guide for flat surfaces.