Insulated Precast Concrete Wall Panels R Value

The insulation thickness can vary to create the desired thermal insulating property r value for the wall.

Insulated precast concrete wall panels r value.

In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation. Choose from a number of variables such as concrete thickness insulation climate zone building class and the calculator will provide the total r value of the wall or flooring system. Every precast wall panel has a thick layer of energy efficient thermal insulation integrally sandwiched between a very durable concrete interior and a unique beautiful exterior finish. Insulated precast concrete wall panels can be created as a complete system that includes insulation and a moisture barrier as well as an exterior membrane and interior finish.

The difference between typical panels and insulated sandwich wall panels is that the latter are cast with rigid insulation sandwiched between two layers or wythes of concrete. Increased r values are achieved by increasing the insulation thickness between the two concrete wythes. When utilizing climate data for perrysburg oh the proposed 3 in exterior concrete 2 in extruded polystyrene insulation 5 in interior concrete thermomass wall panel performs at r 20 64. The r value achieved by precast concrete insulated wall panels can vary widely depending on the desired performance of the wall panel.

For instance if you have a material with an r value of 12 attached to another material with an r value of 3 then both materials combined have an r value of 15. 10 3 x 4 x 3 r 18 up to r 22 12 3 5 x 5 x 3 5 r 22 up to r 34 panel fabrication is inches of exterior wythe x inches of insulation x inches of interior wythe r value rating for regular sandwich panels. Providing an r value greater than what can be expected by the material alone r 11 49 or by which code requires. Still highly capable thermally versacore green delivers r values ranging from a leed friendly r 13 6 in an 8 inch thick panel up to r 20 2 in a 12 inch thick panel.

Panel panel standard thickness fabrication r value 8 2 5 x 3 x 2 5 r 19 less than 4 stories. These components come together in one simple to install system that can be erected in much less time than traditional building methods. Calculators have been created for precast sandwich panels single layer panels and precast flooring and make calculating r values simple.