A Complete Guide To Flat Roofs In Dublin

All you need to know about Flat Roofs

Sometimes a flat roof can offer an excellent solution for your property. But before you decide you might want to know more about it. This blog will take you through the basics of what it is, common materials used and where flat roofing is most often installed.

Why choose a flat roof?

To start off, it should be pointed out that a flat roof is not entirely flat. If it was, there would be no drainage so water would pool on the roof. To avoid this happening a gradient or “fall” is built into the design. This is usually anywhere between 1:40 to 1:80 and ensures that water will run off into the gutter and downpipes.

Flat roofs are most often seen on storage spaces like garages as well as extensions and porches. On some buildings, they might be required to comply with local planning regulations. They are also a popular choice for modern minimalist style buildings, both residential and commercial. Other factors to consider are cost and maintenance.

Cost: Installing a flat roof will be much faster and a lot simpler than installing a traditional roof. Not only are the materials a lot cheaper, but labour costs will also be substantially reduced. The speed at which a flat roof can be installed also makes it less disruptive for the property owners

Easy to maintain: Although a flat roof will benefit from regular care and maintenance, it is much easier to access safely. This is helpful for carrying out regular inspections. Ease of access also makes repairs a lot simpler to carry out compared to a standard sloping roof.


There is a wide variety of materials available and the final decision will depend on a lot of factors ranging from your budget to the type of building. The most important thing is that it is durable enough to withstand the wind and rain and should not require too much maintenance.

Torch on bitumen Felt

This is an economical choice which is also very durable. It is made by binding layers of bitumen sheeting together using heat from a gas torch, which gives it its name. The felt needs to be heated when being applied to the roof so appropriate safety precautions must be taken when installing.

PVC Single-ply Membrane

Another economical option which is used both for commercial and residential properties. It does, however, require special skills so should only be installed by a suitably qualified professional.

EPDM Rubberised Roofing

This option offers protection from rain and UV light. It can be laid loosely rather than stuck down making it reusable. It is easy to install and can last up to 50 years or more.

GRP Fibreglass Roofing

Ideal for roofs that are an irregular shape or size as it is painted on, not laid in sheets like the others. It is lightweight yet still strong.

To help you make up your mind speak to your local roofing company who will be able to advise the best solution for your own requirements.