Rmax Multi-Vent Nailable Base-3
Multi-Directional Venting Insulation for Above the Deck

This energy-efficient composite insulation utilizes solid OSB vent blocks to separate the rigid insulation layer from the standard 7/16” OSB nailing surface. The insulation has glass fiber/organic mat facers on both sides. The solid wood vent blocks come in 3/4” to 2” thicknesses to meet enhanced multi-directional venting requirements.
Superior for use in commercial steep slope roofing applications.

 
Rmax Mutli-Vent 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 (blocks).  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.  3Multi-Vent 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 (blocks). 
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. 
3Multi-Vent 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.