Permaroof EPDM Roof Kits & Accessories

How to Guides for Flat Roofing

Permaroof UK Ltd supply one of the largest ranges of flat roofing products and accessories for trade and DIY roofing. For high-performance and reliability, EPDM roofing is the perfect material and ideal for shed roofing and garage roofing, green roof projects, flat roof extensions and more.


We provide an extensive selection of flat roofing installation guides, fact and advice sheets, technical product specifications and safety data sheets. Our resource library is constantly expanding and always free for both trade and DIY roofers with no sign ups, logins or download limits required.


Our award-winning sales teams are always on hand during the working week to offer advice and assistance with your orders. Call us today on 01773 441 947 or send us a message and we’ll get back to you as soon as we can.


Please browse through our downloads by section.

Firestone EPDM

Welcome to PermaroofUK Ltd How to Remove Creases from Firestone EPDM Membrane

Sometimes EPDM membrane becomes creased during transit and storage. Typically, light creases can be removed by simply resting the membrane on a flat surface for around 30 minutes. In this guide, we’ll show you how to remove both light and heavy creases from your EPDM membrane to ensure a smooth, even finish and high performance from this superior flat roofing system.

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Fully Adhered Application

Fully Adhered Application

In this guide, we will show you how to evenly apply EPDM membrane from the centre of the roof out towards the perimeter edges. Once the roof substrate is properly prepared, the EPDM membrane can be laid out onto the roof and positioned. Make sure enough membrane overhangs the roof perimeters and upstands, allowing it to be trimmed later.

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Mechanically Fixed ApplicationMechanically Fixed EPDM Application

It is always preferable to remove the existing waterproofing from the main part of the roof, but if you are satisfied the roof deck is in a sound structural condition, only the perimeter edge waterproofing, upstands and loose materials, e.g., felt chippings, have to be removed. Find out more about how to action a mechanically fixed EPDM application.

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DIY Roofing Installation Guides

How to Install Rubber Roofing Yourself

How to Install Rubber Roofing Yourself

In this brief guide, we will introduce you to the EPDM flat roofing system and cover the basics of installing this type of system yourself. Before you begin, the entire surface area must be adequately and correctly prepared. Please see the full application guide for further details. We also have additional, individual tutorials to cover each stage of the application process in greater detail.

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Roof Trim Installation Guides

Metal Edge Trim DetailMetal Edge Trim Detail

Once the roof is watertight, it needs to be finished with metal edge trims. These are attached by mechanically fixing. Find out how to install metal edge trim in our handy guide. Installing good quality trim around the perimeter edges, particularly to upstanding walls, gives a professional finish and a reliable seal for all types of flat roofing projects.

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EPDM Trim Installation GuideEPDM Trim Installation Guide

When fitting EPDM trim, it is preferable to install the EPDM trim gutter edge backplate before the membrane is adhered to the deck. In this guide, we will demonstrate the correct procedure for installing Permaroof trim. Adding flat roof trim to EPDM roofing systems ensures a completely watertight seal around the perimeter of the project.

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EPDM Detail Installation Guides

External Corner Detail with 9External Corner Detail with 9" Formflash

This guide highlights how to finish an external corner with our 9” FormFlash product. Create a reliable, long-lasting EPDM roofing system using our recommended EPDM products and supplies. Use contact and bonding adhesives to complete the waterproofing for this common flat roofing detail. This system is ideal for sealing EPDM roofing to upstanding, adjoining walls.

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Perimeter Walls and Internal CornersDealing with Perimeter Walls and Internal Corners

Once the main field sheet is adhered the perimeter walls can be dealt with. Make sure you use the correct adhesive to both sides to ensure reliable, long-term performance. Download our handy, detailed guide to finishing perimeter walls and internal corners on your EPDM roofing system using high-quality flat roofing supplies.

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