Substrate: Roof slope no less than 1:5 (12°), with flat and dry wooden base.
Underlayment: Lay asphalt waterproof underlayment first for enhanced leakage prevention.
Laying Method: Install from eaves upwards in staggered overlapping pattern with an overlap of no less than 50 mm. Fix with nails and rely on adhesive strips for extra bonding.
Flashing & Sealing: Use dedicated accessories to seal ridges, gables, chimneys and other joints for full waterproofing.
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