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Where would you put the vapour barrier ? Would you put it on the underside of the conservatory ? Like the foil quilt , then plasterboard like he has done ? Thanks

Thanks for that.I was thinking along the same lines , for the sake of a bit of 100x100 prop , we are thinking of , propping it on 4 props , 2 for the front purlins and 2 for the higher purlins.like you say , surely that's going to sort of spread the load a little. These have been drawn by...

Yeah , Looks good to me , if your adamant , you want to use 6mm ply , I'm sure that will work

Hi woody ,can you see this image now ? Your advice would be appreciated ,thanks

6mm would hardly be noitcable at all tbh.especially with the big upstand in the middle,which pertrudes above the tiles.if your using noggings you should be fine.or if you feel more comfortable, you could extend the nogging past the plywood ? So half of the nogging has the ply sat on it then the...

Valley boards inset between the rafters , would be my preference , make them wider than your GRP valley , then the extra will carry your battens. 6mm ply won't be sufficient enough to carry your battens, you would still need noggings !

can you see that ? I'll get there in the end

IMG_20150705_173641 by Bcg74 posted 5 Jul 2015 at 5:41 PM Hopefully this pic would of loaded.as you can see , 2 timbers bolted together , sat against the existing purlin , which is sat on a 100x100 prop , which is sat on a crossbeam made up of 2 timbers bolted together.so I'm guessing the...

Hi woody.yes we've been told to use 2 lengths of 75x225 c16s , bolted together ,which fit on the underside of the rafters , so obviously one would be slightly higher than the other one before we bolt it.ill try and upload a pic , thanks

Hi all Can I just say , its my first post , so be kind ,lol. Usually I can find everything I need to know on here , but not 100% on this one.just hope I have the right section as well. Basically , we have got to sit a new purlin (2 x 275x75 , bolted together,sat against an existing inclined...