I’ve got a large summer house which appears to be an inner building with a felt roof and an external cladding on the sides and roof with log lap timber. The roof is rotting in places and I’m thinking of repairing with new log lap and then painiting with something waterproof. Can you recommend a product.
Any of the Zinsser AllCoat Exterior (Water Based) finishes are excellent on exterior timber cladding after first priming bare wood with Zinsser Cover Stain.