I agree with the previous post about felt having the shortest lifespan but its certainly not the cheapest option.though I have recently been informed that Bauder felts can last upto 50 years! but are expensive.
Felt systems are a dam site more labour intensive.There's a company in Bradford called Alvadac who sell edpm for around £10 per meter.the grp probably comes in the middle price wise.
Felt systems are a dam site more labour intensive.There's a company in Bradford called Alvadac who sell edpm for around £10 per meter.the grp probably comes in the middle price wise.
