How to Fit an EPDM Shed Roof Kit

In this guide, we will demonstrate the application process for fitting your PermaRoof EPDM shed roof kit. Our shed roof kits include everything you need to replace the covering on timber shed roofing. Fast and easy to apply, ideal for DIY.

Your EPDM kit should be applied to a clean, dry and dust-free surface for the best results. Carefully prepare your shed roof by fully removing the old covering and any oil or grease spots before you begin. NB Timber shed battens are not included as a part of the EPDM roofing kit. You may choose to purchase new battens or conserve the old ones (if they are in good condition) when removing the old roof covering.

Buy standard sized shed roofing kits here.

EPDM Shed Roof Kit Fitting Instructions

Step 1

Open the box to check contents and familiarise yourself with the components.



Included in your kit (note quantities will vary according to the size of the project):

Adhesive (aerosol spray 750ml)

Step 2

Lay the membrane over the shed roof, ensuring you have full coverage. Allow to relax for 1-2 hours.



Step 3

Fold half the membrane back on itself and expose the first half of the shed roof working area.



Step 4

Spray the adhesive evenly across the exposed working area, keeping the tin at an angle (as shown). Allow to dry.



Step 5

Next apply an even coat of spray adhesive to the back of the membrane you folded back earlier.



Allow to dry. Use your finger to do a touch test before moving onto the next step.



Step 6

Roll the membrane slowly and evenly back over the adhesive-covered exposed half of the roof in stages. Try to minimise air pockets and creasing as you go.



Step 7

Use a soft broom over surface of membrane to ensure full adhesion and to ease out any creases or bubbles.


Repeat steps 4-7

Fold the other half of the membrane back over the newly-adhered side and repeat steps 4-7.



Step 8

Trim off any excess rubber sheet around the edges, leaving a minimum of 50mm overhang.



Step 9

At the front of the shed, pinch the corner of the EPDM and fold inwards to form a triangle.



Secure with a timber batten strip (not included).



Step 10

Apply the spray adhesive around the edges of the shed and the underside of the membrane. Leave to dry.



Step 11

Once dry, press the EPDM membrane down firmly by hand, folding the edges.



Step 12

Take your new or conserved timber battens and run a bead of PermaRoof Bond & Seal Sealant (included) along the full length of the underside.



Step 13

Sandwich the 50mm overhang of membrane between the side of the shed and timber batten. Nail or screw this through the membrane and into the shed timber, ensuring that the nail fixing is below the bead of sealant line to ensure a watertight seal.



Step 14

Stand back and admire your handiwork. You have now successfully waterproofed your shed for the last time with your PermaRoof EPDM shed roof kit.



Download your copy of this guide (PDF)

More guides from PermaRoof UK

PermaRoof UK offers support for EPDM application, whether for trade roofers or for the DIY market. The resource library contains an extensive range of EPDM installation guides in downloadable PDF format and video tutorials with step-by-step instructions given by qualified and experienced EPDM specialists.

Visit the Knowledge Base

Become an expert with our EPDM training days

We run accredited EPDM training days for both sheet membrane application and liquid waterproofing. EPDM application training days are held weekly at the Permaroof headquarters in Derby at our purpose-built, approved training centre. Suitable for both trade and DIY flat roofers, the one-day courses offer industry-leading training and certification.

Visit our corporate site to find out more about training