One of the more common in recent decades is extruded-foam insulation board. Available in thicknesses from ½" to 4", it's ... In the cases of Homasote and hardboard, sheets of 4 x 8 material are cut ...
Fletcher had about 75% market share in insulation in New Zealand until about a decade ago when German building product company Knauf entered the market. Fletcher now has about 45% market share in ...