Home insulation comes in a variety of types and colours, each with its own special features. Although the different types of insulation look different and may be applied with different methods, they share the same purpose: to save energy by helping your heating and cooling systems to work more efficiently. The type of construction you're undertaking is a major contributor to determining which type of insulation to choose.
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Fibreglass insulation is one of the most common forms of insulation. It consists of extremely fine glass fibres attached to a layer of paper for easier handling. Fibreglass insulation comes in a variety of thicknesses and densities, which determine its resistance to heat flow, or R-value. A high R-value means more-efficient insulation. The highly recognisable pink fibreglass insulation is made by Owens-Corning, which trademarked the use of pink in its insulation. Johns Manville produces both white and green fibreglass insulation. All other fibreglass insulation manufacturers produce yellow insulation.
Foam boards are rigid panels of foam insulation that vary in thickness. In addition to providing heat insulation, foam boards also insulate sound and add to structural integrity. Blue and pink foam board insulation is an extruded polystyrene insulation, but the pink is the trademarked and produced by Owens-Corning. Polyisocyanurate foam board has reflective foil on both sides to serve as a radiant barrier in some appliances.
Loose fill insulation is made up of cellulose, fibreglass, rock wool or slag wool that is blown into hard-to-reach places such as behind a finished wall or an oddly shaped area. Loose fill fibreglass insulation is available in the trademarked pink. However, depending on the material from which the insulation is made, loose fill insulation is also available in white, yellow, grey and brown.
Sprayed foam insulation is a liquid foam that combines with a foaming agent to expand and fill the surrounding space as it cures. It has a high R-value and can easily be sprayed behind finished walls and other difficult-to-reach spaces. Sprayed foam is usually white, yellow or light green.
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