WBP plywood - what is it??
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Hi
I am having an extension built and the upstairs level is to be built from timber and the plywood cladding is meant to be WBP ply. Water and Boil Proof is what WBP stands for isn't it?
The plywood has gone up and today it absolutely chucked it down with rain and I noticed that the plywood that they have used for the job seems to have absorbed a lot of water (dark stain patches appeared after it rained).
I thought WBP plywood would not absorb any water, am I wrong? Is it just that the glue in the veneers is waterproof, but the veneers are not actually sealed?
How can I tell if they have used proper WBP ply?
Thanks!
--------------------------------------------------------------------------------
Hi
I am having an extension built and the upstairs level is to be built from timber and the plywood cladding is meant to be WBP ply. Water and Boil Proof is what WBP stands for isn't it?
The plywood has gone up and today it absolutely chucked it down with rain and I noticed that the plywood that they have used for the job seems to have absorbed a lot of water (dark stain patches appeared after it rained).
I thought WBP plywood would not absorb any water, am I wrong? Is it just that the glue in the veneers is waterproof, but the veneers are not actually sealed?
How can I tell if they have used proper WBP ply?
Thanks!