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What can I use on my shed roof instead of felt?

EPDM membranes are fast-becoming the roofing industry's go-to alternative to felt and other outdated roofing materials. The composition of EPDM as a synthetic rubber compound offers superior waterproofing qualities and resistance to the elements.

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We have produced a new version of this popular blog post updated for 2022. You can read it here. Now the weather is cheering up across the UK, it’s time to start planning the outdoor improvements you’ve been thinking about all winter. The autumn and winter months take their toll on outside buildings exposed to the elements – the most common of these being shed roofing. Shed roofing projects are not traditionally DIY jobs, due to the historic hazards and installation issues associated with old-fashioned roofing materials such as felt, for example. Although felt is a typically traditional roofing material, today’s modern alternatives not only give better performance and longevity, they are much easier to install.

Shed roofing with EPDM

EPDM membranes are fast-becoming the roofing industry’s go-to alternative to felt and other outdated roofing materials. The composition of EPDM as a synthetic rubber compound offers superior waterproofing qualities and resistance to the elements. With the ability to withstand temperature extremes, EPDM suffers none of the issues that felt does during hot, and then cold, weather. Felt materials often soften considerably during high temperatures, then when the temperature drops suddenly, felt becomes brittle and when bubbles form in the surface, they crack and allow water ingress. The properties of Firestone EPDM membrane result in a unmatched expected lifespan over any other membrane of more than 50 years. This is one of the biggest advantages of EPDM – life expectancy. EPDM shed roofing is likely to outlast an ordinary garden shed, removing any need for further shed roof replacement. EPDM membrane is ideal for shed roofing projects and is simple enough to install on a standard garden shed or garage for the average DIY enthusiast with skills. It is laid in a single sheet to negate the need for tackling potentially vulnerable joins.

Buy EPDM shed roofing kits

Permaroof introduced EPDM shed roofing kits with the DIY homeowner in mind. We stock a roof kit for every standard-sized shed and can create bespoke EPDM kits to suit any size you need up to 16m x 30m. Buy shed roofing kits right here in our shop. Browse our range of standard and bespoke options. Included in a Permaroof-in-a-Box shed roofing kit is enough membrane, adhesive, trim if required and accessories if needed for your bespoke project. To help you to work out what you need, the Permaroof EPDM Kit Builder App is the perfect tool. Accessible online for free, Permaroofkit helps to customise shed roofing kits to your exact requirements, whether you have flat roof extrusions like skylights and flue pipes or a pitched, typical shed roof.

Try the Permaroof EPDM kit builder here.

With next day delivery on many of our EPDM supplies, order your shed roofing today and fit tomorrow with Permaroof.

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How do you hold down a shed?

Bolting a cabled anchor to the outside of the shed. Using large Penetrator anchors under the ground frame for both support (replacing footings) and as a hold-down. Using smaller Penetrator anchors with L-brackets for securing sheds into asphalt and for temporary building installations.

There are five primary methods for securing sheds to the ground without concrete. Looping a cabled anchor around a ground frame. Looping a cabled anchor over an inside structural member. Bolting a cabled anchor to the outside of the shed. Using large Penetrator anchors under the ground frame for both support (replacing footings) and as a hold-down. Using smaller Penetrator anchors with L-brackets for securing sheds into asphalt and for temporary building installations. The specific method, and the number and placement of anchors, will depend upon shed size, soil conditions, and your preference. If a larger shed needs support as well as hold-down (requires footings), the large Penetrators can provide both functions with the same anchor. The largest (46") can replace poured concrete as an easier, faster, equally effective, and less expensive alternative. For the best holding strength, anchors should be installed at a minimum spacing equal to the depth of the anchor, in order to avoid each other’s “cone of soil” — the region of soil that contributes to an anchor’s holding strength. This applies to both cabled anchors and Penetrator (screw-type) anchors.

Drive rod and sledge or demolition hammer for cabled anchors.

Impact wrench or power take-off (PTO) for Penetrator anchors.

Depending on your preferred method, you’ll need the following tools for installation:

For complete instructions, download the Shed Anchor Installation PDF.

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