Robin, a suggestion...
Take a piece of dry material which is about the same size as the items in the bucket, weigh the dry sample... and then weigh a wet sample (after wiping the sample surfaces) For this comparison to have any validity the pieces need to be of comparable size and the "wet" sample needs to be free of carry-out from the bucket.
Sounds good news so far. Would it be worth once soaked in water left outside so the frost could get hold and see what that results in..
Its just an idea Rob, if you dont think it would achieve anything then dont bother.
Rob
Hi Rob,
How's the Tricoya looking?.
Have you braced the underside ? and what size timber if you did, did you use ?. Do you know if you can cover it with roofing felt ( ie , would it affect the Tricoya with the felt adhesive.?. )
Rob
I have no idea on the roofing felt adhesive - to be honest I didn't know there was adhesive for it - all the felt I have ever seen used was melted on by using a blow lamp to melt the tar on the back as it was laid.