7 16 osb is standard and 5 8 or 3 4 osb or plywood and fire pressure treated sheathing is available for special applications.
Gaf ventilated roof insulation panels.
5 8 or 3 4 osb plywood optional.
The standard 1 vent space layout leaves over 92 open vent area for maximum airflow.
The ventilated roof insulation should be a factory assembled panel consisting of one layer of 7 16 11 1 mm oriented strand board top surface a built in ventilation space maintained by 1 25 4 mm wood spacer blocks and polyisocyanurate insulation on the bottom.
Nominal 4 x 8 panel.
Care training and education care training and education.
Roofing products residential roofing products roof and wall nail base insulation.
Get to know more about one of the most popular commercial roofing systems.
Ventilated roof insulation a.
Roof and wall nail base insulation.
Featuring gaf energyguard polyiso insulation.
Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness.
The designer should determine if a vapor barrier is required between the deck and the insulation.
Roofing products commercial roofing products insulation and cover boards insulation.
Proper attic ventilation systems allow a continual flow of outside air through the attic protecting the efficiency of the insulation and helping to lower temperatures in the living space.
The vapor retarder should.
It consists of a balance between air intake at your eaves or soffits and air exhaust at or near your roof ridge.
See the difference performance roofing insulation makes.
Fm approved subject to the conditions of approval as a roof insulation when installed as shown in the current edition of the factory mutual research approvals guide.
Cornell corporation has products that have performed day in and day out on roofs nationwide for longer than most of our competitors have been in the business.
Benefits of energyguard polyiso roof insulation include.
Thermacal 1 and 2 ventilated roof insulation panels are composite ventilated roof insulation panels combining standard osb sheathing an air space made by solid wood spacers and polyisocynurate.
Sheathing pre space for thermal expansion.
The first step is to check out this 60 second video and learn about the 300 1 rule the difference between intake and exhaust ventilation and why proper ventilation is so important to get right to help calculate your attic ventilation needs visit gaf ventilation calculator.
