How are the modules attached to a roof?
In most cases the panels are placed in an aluminum support structure, which is attached directly to roof rafters. The panels are engineered to withstand high winds (up to 125 miles per hour) winds. The modules place a distributed load of less than 3 pounds per square foot on the roof, which is well within roof loading requirements of local building codes. The modules will protect the roof shingles under them from the sun, and will block sun from hitting the shingles (this will cause cooler attic temperatures in summer). An outdoor sealant is used between the shingle and aluminum support structure to prevent leaks.
