Which Shed Felt Do I Buy?

Shed Felt – Which One To Buy? Article by Andrew Stodart of Ashbrook Roofing LTD

Your shed roof is looking tired and you have noticed one or two leaks or the UK weather has finally got the better of the felt and it is currently flapping in the wind. So, which shed felt do you buy to replace it?
Here is a recent Q&A session from one of our customers which should make your buying decision a little easier.

I have a traditional Garden Shed and the felt has come off due to recent stormy weather, which shed felt will make it watertight again?

If you have not replaced the felt before it is likely to be standard grade Green Mineral shed felt on the roof as this grade tends to be used by most shed manufacturers. We have standard grade shed felt available and this has a life expectancy of up to 5 years.

What if I want a felt that will last longer than 5 years?

shed feltAs well as the standard grade shed felt, we also sell a polyester reinforced felt and this can last up to 15 years. It is the same thickness as the standard felt but more tear-resistant which offers extra protection from the weather.

The next grade up from this would be our Heavy-Duty Polyester Reinforced Shed Felt. This felt is thicker than the others and even more tear-resistant. It has a similar life expectancy to the Polyester grade but is far more suitable for sheds that are in an exposed area where the wind is likely to cause potential problems.

A good way of increasing the life expectancy of any shed felt would be to install an underlay prior to the felt itself. This adds an extra layer of protection and is also commonly used to protect a roof that has a shallow pitch (below 20 degrees)

How many rolls will I need?

A standard 6×4’ garden shed will require a single 8x1m roll of shed felt. We have a handy size guide on all of our listings that should help you determine the number of rolls that you need.

What do I do with the old felt?

We always recommend that all of the old felt be removed from the roof and any nails or imperfections be removed prior to installation. As for the disposal of the felt, your local Household Waste depot (local council tip) should accept it in most cases.

Do I need to glue the new felt onto the roof?

All new felt should be nailed onto a boarded timber roof. If you were to use adhesive on the timber prior to laying the felt this would reduce the life expectancy of it. The reason behind this is that the heat of the sun during the summer months will cause the felt to expand and contract, and if the felt has fully adhered to the roof then this will result in cracks within it.

roofing felt adhesives

We do recommend using a bitumen-based felt adhesive when overlapping the felt and for the corners and other details as this will reduce the risk of the felt coming away from the roof in strong winds. A full installation guide can be found on the downloads tab in each shed felt listing on our website.

Won’t the nails cause holes in the felt and allow water to leak into the shed?

As all shed felt is bitumen based, the nail holes will seal after installation and prevent water from entering the shed. The use of too many nails will be counterproductive as this will increase the risk of water ingress.

Can I buy the adhesive and nails from you?

Yes, both of these products are available to buy on our website. We supply a FREE bag of nails with every roll of felt purchased.

Is Green Mineral the only colour available?

Some of the felt we have is available in Black Mineral and this option is becoming more popular. The Green Mineral is not a bold green but more of a grey-green in tone and this is the traditional colour of shed felt.

If I order from your website today, when should I expect delivery?

Our standard delivery is 2-3 working days and this is FREE to all of our customers. If you need a quicker delivery then we offer an express ‘next working day’ service for orders placed before 2 pm.

We hope that the information above has helped you choose the right felt for your project. If you need any further advice then please feel free to contact us and we will be happy to help.