cold deck or inverted roof. The simplest and cheapest roof insulation is the classic cold loft option. Insulation is placed over and between the wooden joists, above the ceiling of your home's top ...

Simply lay sheets of extruded polystyrene foam on the existing roof deck, fastened temporarily using a few screws per sheet through large-diameter washers just to hold the foam in place. Next, add ...

If you’re like a growing number of people looking to upgrade a seasonal cottage for year-round use or full-time living, you’ll almost certainly have to improve insulation levels in your roof ...