If roof, face or rib conditions are found to be unsafe, they shall be corrected by taking down loose material, or shall be securely supported, before other work is started.
52 P.S. § 70-256
If roof, face or rib conditions are found to be unsafe, they shall be corrected by taking down loose material, or shall be securely supported, before other work is started.
52 P.S. § 70-256