Clad the decking with a felt underlay, secured with broad-headed galvanized nails.
Attach BARDOLINE using large-headed galvanized nails which are at least 28 mm in length. Seal the shingles together by reheating the thermo-adhesive points located between the outer edges. Strengthen the bonding action by applying bitumen mastic.
Cut each strip into four pieces, trimming the tile back 20 mm from the top edge of the tile strip. Lay tiles opposite end of the roof from prevailing wind. Lay on adhesive strip and nail centre lap section.