During construction, drywall boards are attached to the home's studs, over the insulation, and then sealed with a compound at the seams to create ... Drywall boards come in three common sizes: 4x8 ...
One of the more common in recent decades is extruded-foam insulation board. Available in thicknesses from ½" to 4", it's easy ... In the cases of Homasote and hardboard, sheets of 4 x 8 material are ...