DIY Doctor

GRP versus Sarnafil

Postby Lucy » Thu Mar 20, 2008 11:51 am


I need to replace my felt flat roof. Its a fairly small area on a kitchen extension.

I have had quotes from £300 for a bitumen roof to £1300 for a Sarnafil roof.

I think GRP or Sarnafil will be better quaility that bitumen - i am also aware of the need to have a 'warm roof'.

I was told by the Sarnafil rep that GRP can be compromised if moisture get in to the process and so it needs to be done on dry days. and that GRP is a carcenagenic material.

I am confused as to the best value for money and the environmental impact.

Any advice or good companies in Bristol

Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Thu Mar 20, 2008 11:45 am

Postby Gryfiss » Fri Apr 25, 2008 9:44 pm

I would take a close look at the guarantees on offer from both Sarnafil and which ever GRP company you are looking at. You'll be surprised by what they actually cover and what you can claim for if something goes wrong! It may give you an idea which product you can have confidence in and ultimately give you piece of mind in what you install. Best place to get an idea on environmental impact is through BRE website and look for the BREAAM ratings. Think PVC membranes in general will provide A+ rating. (best you can get)

Hope This Helps!
Rank: Apprentice
Progress to next rank:
Posts: 9
Joined: Sun Oct 21, 2007 3:40 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics