Rmax Vented Nailable Base-3
Straight-Line Venting Insulation for Above the Deck

Vented Nailable Base-3 is a composite panel with glass fiber/organic mat faced polyiso insulation bonded to furring strips and a 7/16” OSB nailing surface. The solid wood furring strips come in 3/4” to 2” thicknesses for straight-line venting from the soffit to the ridge.

This product is great for preventing heat build-up and helps remove moisture as airflow is provided under the OSB and shingles.

 
Rmax Vented Nailable Base-3 Compliances

CONSTRUCTION APPLICATIONS

Asphalt shingles

                                        Asphalt Shingle Application

                                        Asphalt Shingle Application


THERMAL PROPERTIES

1Includes 7/16" OSB nailing surface and 1" airspace (furring strips).  2LTTR values are determined in accordance with CAN/ULC-S770. LTTR predicts a 15-year, time-weighted average. The values shown are for the foam portion only.  3Vented Nailable Base-3 is shipped in bundles that are approximately 48" high and wrapped in plastic for easy handling.

1Includes 7/16" OSB nailing surface and 1" airspace (furring strips). 
2LTTR values are determined in accordance with CAN/ULC-S770. LTTR predicts a 15-year, time-weighted average. The values shown are for the foam portion only. 
3Vented Nailable Base-3 is shipped in bundles that are approximately 48" high and wrapped in plastic for easy handling.

TYPICAL PHYSICAL PROPERTIES

1Flame Spread and Smoke Developed Indexes are used to measure and describe the properties of this material in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of this material and other related roofing components under actual fire conditions.

1Flame Spread and Smoke Developed Indexes are used to measure and describe the properties of this material in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of this material and other related roofing components under actual fire conditions.