Air Space Requirements - InfraStop® Post Frame & Pole Barn Applications

All applications with an R-Value claim must have an enclosed air space (a cavity without free air flow) or face an open air space. Please refer to the chart below for the Air Space Requirements per application.

Application:Benefit:Air Space Specification (relative to product):Building Components (that product is attached to):Products:
Roof/New Below PurlinR-9.0 Down R-4.4 Up1.5” Above and Open BelowAbove the Truss and Below the PurlinDouble-Sided Reflective Insulation
Roof/New Above PurlinR-6.4 Down R-4.3 Up0.75” (nominal) Above and Open BelowBelow the Roof and Above the PurlinDouble-Sided Reflective Insulation
Roof/Retro Bottom of TrussR-10 Down R-3.7 Up10” + Above and Open BelowBottom of TrussDouble-Sided Reflective Insulation
Roof/Retro Bottom of PurlinR-9.0 Down R-4.4 Up1.5” Above and Open BelowBottom of PurlinDouble-Sided Reflective Insulation
Wall/New Inside of GirtR-5.31.5” Outside and Open InsideInside of GirtDouble-Sided Reflective Insulation
Wall/New Outside of GirtR-4.70.75” (nominal) Outside and Open InsideOutside of Girt and Inside Exterior PanelDouble-Sided Reflective Insulation
Wall/RetroR-5.31.5” Outside and Open InsideInside of GirtDouble-Sided Reflective Insulation
Roof/New Above PurlinR-3.8 Down R-3.5 Up0.75” (nominal) Above and Open BelowBelow the Roof and Above the PurlinSingle-Sided Reflective Insulation
Roof/Retro Bottom of TrussR-6.6 Down R-3.0 Up10” + Above and Open BelowBottom of TrussSingle-Sided Reflective Insulation
Wall/New Outside of GirtR-3.70.75” (nominal) and OpenOutside Outside of Girt and Inside Inside Exterior PanelSingle-Sided Reflective Insulation
Wall/RetroR-4.21.5” Outside and Open InsideInside of GirtSingle-Sided Reflective Insulation