Guides A-Z

Guide describing how to add spray foam insulation to the underside of the existing roof deck as part of the conversion of a vented attic to an unvented, insulated attic.

Guide describing the advantages and disadvantages of gable roof and hip roofs and how both designs react under high wind loads.

Guide describing how to brace gable end walls to resist wind pressures.

Guide describing the installation of roof vents that are resistant to damage from high winds and water intrusion.

Guide describing options for designing and locating the thermal boundary at the attic floor or along the roof line in new and existing homes.