Observation: Siding is buckled.
Performance Standard: Siding that projects more than 3/16 inch from the face of adjacent siding is unacceptable.
Corrective Measure: The remodeler will repair or replace any siding not meeting the performance standard.
Discussion: Buckling is caused by increasing relative humidity, which causes the siding to expand. It can be prevented by leaving space between the tongues and grooves for siding to expand, and by leaving the siding outside for a few days to allow it to adjust to the ambient humidity prior to installation.
