I need to replace my felt flat roof. Its a fairly small area on a kitchen extension.
I have had quotes from Â£300 for a bitumen roof to Â£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