This is an easy one!
Felt is an obsolete building material and really should have been retired some time ago. Here is a short list of the shortcomings of felt as a waterproofing membrane for a flat roof:
- Installing a felt roof is messy and quite dangerous. Naked flames and pots of hot bitumen do not go well with timber roof decks!.
- Felt degrades quickly when exposed to the weather! Yes, felt doesn't really like being left outside. The UV rays from the sun are particularly damaging causing felt to become brittle which leads to cracks and ultimately leaks.
- This susceptibility to weather damage makes felt a poor choice to cover your flat roof and protect your home.
- The unfortunate truth is that due to it's inherent weaknesses a felt roof will fail sooner or later. Average lifespan ranges from 5-15 years but can be much less if poorly installed.
- It is also worth remembering that not all felt is equal. Cheap felt even when it's installed correctly will fail after just a few years. Good quality strengthened, built up felt is better but can sometimes cost even more than a superior modern single ply membrane.
- Do you want to pay for a new roof and then play the waiting game to see how long it will be before it leaks.
- Do you want to pay good money for a flat roofing system that comes with failure guaranteed!
The good news is that you no longer have to put up with inferior and obsolete flat roofing systems.
Almost all of the modern single ply systems are an improvement on felt. Having researched the best of the available systems we believe that Firestone RubberCover EPDM is the best flat roofing system on the market today - which is why we specialise in it!
Check out our WHAT SO GREAT ABOUT EPDM BLOG? blog to find out why.