GRP Resin on sloped roof

Building a chicken coop and thinking of slapping some GRP resin on the sloped roof for protection.

The roof is two sheets of T&G OSB.

Is GRP only suitable for flat roofs (rooves?) or could it be used for gentle slopes. Is there an X in 12 pitch above which GRP is not suitable.

Thanks for any help - I have scoured Google for the answer but cant find it.

Thanks all

 

I would just felt it.

Andy

 

Thanks Andy,

Is there a reason you say that? Cost? Wont cure in the winter? Too much of a slope?

Felt is a bit fiddly and I just though painting on some old resin on fibreglass sheets would be easy enough.

Thanks

 

Felt is easy to apply and will last a long time, when I had chickens I bought corrugated sheets from wickes and fixed them down.

https://www.wickes.co.uk/Onduline-3mm-Black-Corrugated-Bitumen-Sheet-950-x-2000mm/p/240039

Andy

 

Shed felt will be easiest. Resin will work at shallow pitch(up to 25 degrees say) long as you don't try and put too much on. Topcoat will drift downhill a bit but it'll still keep the rain out

 

I was thinking of a 2 in 12 pitch which is about 10 degrees.

 

GRP will work fine on that pitch, less than 10 degrees is classed as flat anyway. You'll need some trims to protect the board edges (or nail the mat to the edges before you resin, mat won't do 90 degree outside angle).