Construction Performance Guidelines
ALUMINUM/VINYL SIDING IS BOWED OR WAVY
Siding shall be installed to accommodate thermal movement and anticipated shrinkage of the structure to which it is attached. Siding shall be free from bows and waviness when installed in accordance with the manufacturer’s specifications. Local distortion from the specified plane shall not exceed 20 mm.
One-Year - Work and Materials. Two-Year - Cladding Detachment, Displacement or Deterioration
Bowed or wavy siding exceeding the acceptable condition shall be repaired.
Varying lighting conditions can exaggerate minor variations in siding profile, texture and colour. Minor waviness due to normal sheathing movements is acceptable. See Also: 3.2 WALL IS BOWED