First, remove all the books from inside the library. Then spray it with a hose from the outside to expose any interior leaks. Once you have found the leaks, caulk them with a silicone caulk.
First, remove all the books from inside the library. Then spray it with a hose from the outside to expose any interior leaks. Once you have found the leaks, caulk them with a silicone caulk.