Simply put, the R-value rating indicates the ability of a material to prevent heat transfer. Since it ranks the effectiveness of different insulation choices it becomes a vital piece of information for commercial roofing projects in Vancouver.
R-value is a measurement of the insulating capacity of a particular building material–commercial roof insulation, as it applies to us. The higher the r-value/inch, the better it is at preventing heat exchange.
Building codes state which r-value is required for a particular roof. It’s an important part of a building's energy efficiency. It helps with thermoregulation to keep indoor temperatures stable, i.e. keeps heat in during winter and heat out in summer. Colder climate needs higher r-value insulation.
Polyurethane spray foam is a commonly used, high R-value insulation for flat roofs. A major advantage of this type of application is its ability to conform to irregular areas. It also boasts a high fire resistance.
Polyisocyanurate (POLYISO) is also a popular choice. It may qualify for LEED v4 credits under Indoor Environmental Quality, Materials and Resources, and Energy and Atmosphere. Since there is a strong interest in green building here, POLYISO is a top consideration for commercial roofing projects in Vancouver.
High-Density Extruded Polystyrene (XPS) board is a solid, economical choice, often used as the insulating layer for inverted roofs. Though special consideration is due where ballast and weight are issues.
Laurentian Roofing Vancouver offers high-quality, cost-minded installations and repairs for commercial roofs in Vancouver.
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