Metal Building Construction

Roof

The assembly used to test the thermal resistance of Radiant Reflect™ insulation as it would be installed in new metal building construction consisted of a corrugated metal exterior, 1/2" extruded polystyrene thermal breaks 5' on center, Radiant Reflect™ insulation, and 8" Z purlins commonly used in metal buildings.

Thermal Values Heat Flow
Up		 Heat Flow
Down		 U Value
Up		 U Value
Down
Radiant Reflect™
w/Wafer Board		 5.02 7.93 .199 .126
Radiant Reflect™
w/Metal Interior		 4.29 7.29 .233 .137
Radiant Reflect™
Exposed to Interior		 3.63* 7.26* .275* .138*

All Thermal Values are corrected for frame loss.
* Includes thermal resistance of 1.32 UP and 4.55 DOWN for interior air film.

Walls

Thermal assembly tested for thermal resistance of Radiant Reflect™ insulation in the walls of metal buildings consisted of corrugated metal exterior, 1/2" extruded polystyrene thermal breaks, Radiant Reflect™ insulation, 8" Z girts, and 1/2" wafer board to represent an interior finished wall.

Thermal Values Heat Flow Horz. U Value Horiz.
Radiant Reflect™ w/Wafer Board 5.45 .183
Radiant Reflect™ w/Metal Interior 4.77 .210
Radiant Reflect™ Exposed to Interior 4.50* .222*

All Thermal Values are corrected for frame loss.
* Includes thermal resistance of 1.70 for interior air film.