Single membrane flat roof finishes

Single membranes are mostly used on large areas on modern structures. They are popular as they can be applied over insulation in a similar manner to liquid applied roofs.

Single membranes are made of sheets of synthetic rubber, heat-sealed or glued together with self-sealing strips, which also secure the membrane to the insulation.

If used where foot traffic is expected, and insulation foam is used, install a plywood base over the foam insulation and under the finished membrane. This makes the surface more robust.

Single membranes should be laid by accredited installers and come with a guarantee of about 25 years, although the material is expected to last as long as 50 years. Good quality workmanship extends the life of the material. A maintenance agreement is worth having to protect the length of life of the roof.

Professional help recommended?

If the flat roof is covering a large part of your building and needs major repair or replacement, get a professional survey before proceeding.

Who pays?

Roof repairs are normally a common responsibility.

Further information

1200 800 Under One Roof

Ask for help from our team of tenement experts

Managing and maintaining a tenement building can be difficult. Under One Roof offers a free enquiry service that allows you to ask specific questions relating to your building.

Ask an expert
Newsletter
Privacy policy
Terms of service

Mid ceiling

Below ground level

Your tenement may have a basement, sometimes used for living accommodation or sometimes used for storage, cellars or wash-houses. These buildings will often also have a 'dunny' between the basement…

905 800 Under One Roof

Energy efficiency improvements

Adding insulation and draught-proofing can save money and the planet but in…

2560 1707 Under One Roof

Insulating traditional solid walls

Recent research suggests that traditional solid stone or brick walls provide better…

2560 1707 Under One Roof

Flat roofs

Flat roofs can be found on buildings of all ages. They can…

406 305 Under One Roof

Asphalt flat roofs

On stone tenements, asphalt roofs are found on: 'high backs' - raised backcourt…

406 305 Under One Roof
Start typing
Privacy Preferences

When you visit our website, it may store information through your browser from specific services, usually in the form of cookies. Here you can change your Privacy preferences. It is worth noting that blocking some types of cookies may impact your experience on our website and the services we are able to offer.

Our website uses cookies, mainly from 3rd party services. Define your Privacy Preferences and/or agree to our use of cookies.