PROBLEM: Insulated, ventilated roofs, particularly those covering open floor plans and cathedral ceilings, are difficult and expensive to build.
SOLUTION: These economical prefabricated panels incorporate wood I-joist framing, OSB sheathing, insulation and ventilation into a single product to be used in light-frame construction applications.
TECH ID: 2008-34
PATENT: US 8,046,969; US 8,141,313
LINK:
DEVELOPMENT PLAN: Undetermined. Has been successfully demonstrated, but on hold given the current downturn in construction.