No roofs shall be installed over more that one existing roof. Manufacturers installation requirements apply and existing roof framing must be designed to carry total load. On-site inspection of material being installed may be substituted. Wood shingles and shakes may be laid over one layer of existing wood shingles. Type 30 felt shall be used as underlayment.
Inspection is required to determine condition of existing roof.
Do not cover without Building Inspectors approval. All roofs laid over an existing roof require metal edging. Permittee to provide City with an ICBO listed number. All tile roofs weighing 7lbs or greater per square shall be engineered by a California Certified Structural or Civil Engineer with details of installation. Approved by Hadi Tabatabaee.