There were other alternatives at the time but recently fibreglass has become one of the more popular options for roofing.
Fibreglass or felt flat roof.
Traditionally the only type of flat roofing has been felt which is notoriously susceptible to cracking and leaking the main reason for this is the fact that.
Felt roofing is a very common material used on flat roofs such as garages garden sheds and on extensions.
Flat roofs for instance contained both felt and lead.
Felt vs grp fibreglass for flat roofs flat roofing is popular throughout surrey kent and surrounding areas being ideal for property structures such as extensions porches garages and dormers.
To see information on over boarding of a felt roof see our fibreglass faq page.
They are also suitable for pitched roofs in some applications.
When planning a new flat roof one of the key decisions you ll make is which material to use.
With the felt roof or other roof covering removed inspect the wood underneath if it s sterling board tongue and groove or plywood and it s 18mm or above and in a good rot free firm condition you can overboard it.
As a result a felt roof would typically only last 5 years or less.
Other practical features of fibreglass flat roofs include there being no joints or seams on the main part of the roof.
The chances of an on site injury occuring are significantly less with fibreglass flat roof systems as it does not require any open flame or any other complicated or hazardous tools.
They lasted a long time and were attractive to the eye but their performance was questionable.
The popularity for both systems stems from different requirements however.
Felt is a cheaper material fibreglass is more expensive.
Grp fibreglass is a new roofing system with many benefits over traditional felt roofing.
This can include epdm rubber and fibreglass talked about above but commonly especially in the trade and in this article it refers to pvc tpo tpe and pib.
Felt flat roofs.
Felt and grp fibreglass roofing systems are the most popular systems for flat roofs.
In short any roof covering that can make a flat roof waterproof in one layer unlike roofing felt with its 3 layer system for instance.
The problems associated with felt flat roofing.
Fibreglass flat roofing is a practical and reliable solution that addresses the age old problem of ensuring your flat roof remains leak free.
Generally felt underlay roof works by combining two or three layers of material together to make an impenetrable barrier that is then coated with a waterproof finishing material to further protect the felt.
Traditionally flat roof materials included felt and lead.