Mineral stone wool insulation batts are slightly better insulators than the off-the-shelf fiberglass batts sold at most ...

Insulation reduces unwanted heat loss or gain, while decreasing energy demands of heating or cooling systems. Building insulation refers to materials that slow heat loss, including cellulose, ...

Depending on how the building feels in the summer and heats in the winter, I figured I could also put a layer of rigid foam ...