Construction Performance Guidelines
ROOF APPEARS WAVY
Roof sheathing shall be sized and installed in accordance with the Building Code.
One-Year - Work and Materials. Two-Year - Ontario Building Code Violations
Roof sheathing not meeting the acceptable performance shall be repaired.
Despite the roof being sized and installed in accordance with the Building Code, waviness between framing members may occur. This will not affect the performance of the roof. Frost patterns on a roof can give the appearance of waviness without the condition existing (e.g. frost outline on sheathing joints and over roof framing members). See Also: 5.1 ROOF TRUSSES OR RAFTERS ARE BOWED 5.14 UNEVEN ROOF SHEATHING CAUSING VISIBLE IRREGULARITIES IN THE ROOF SURFACE