20 Des 2017 – R-Value is the measurement of insulation’s ability to resist heat flow. R-Value ranges from 1.5 to 7 and the higher the insulation’s R-Value, the better that product is at insulating your…
Ceiling insulation makes a huge difference to your electricity bills and comfort, and it’s not that hard to DIY. Step by step instructions & how-to video. . down on your house – plus you’ll save…
