Treat the insulation material as homogeneous, Though in real programs, rigid products have joints and in many cases cracks. So, the U-worth is often larger than what It might be If your insulation behaved for a homogeneous materials. Reference two presents direction on calculating U-values. Hide Show facet panel Take https://knoxtkpej.dreamyblogs.com/35175925/examine-this-report-on-home-insulation