Tempo:
1.523 × 1.523 m (5 × 5 ft.) in size. It is generally used as floor underlay or interior finishing such as shelving and other cabinetry. It is also used as a substrate for plastic laminate counter tops. Hardboard is made of wood fibre, like fibreboard, but is denser and harder. It is used for furniture and cabinetry products. Hardboard siding is prefinished and is an alternative to wood, vinyl or aluminum.
SUSTAINABLE HOUSING INSIGHT Healthy Indoor Environment
Glued wood products made for structural uses such as for floor joists or sheathing (plywood and OSB) must be made from water-resistant adhesives so that wetting during storage and construction will not weaken them. Such adhesives have very low volatile organic compound (VOC) emission rates. Glued wood products made for interior uses such as particleboard and other wood products often used for furniture and cabinetry use more economical glues that have higher emission rates. Sealing the faces and edges of a panel with a laminate drastically reduces emissions. Low-emission boards are available.
overall insulating value of a wall, roof or floor assembly. NBC insulation requirements are based on effective RSI-values, which take into account the lower insulation value of studs and other thermal bridges.
Resource Efficiency
Energy Efficiency
Though a fairly good insulator, wood is not as effective as non-structural materials made specifically for thermal insulation. The wood structural members have a lower insulating value than the surrounding insulation. These “thermal bridges” conduct heat towards the cold and reduce the
Wood framing provides space for insulation, which can result in highly insulated structural components that take up very little space. Where higher insulation levels are required, consider using wood-framing materials such as “I” joists that allow more space for insulation, yet use minimal amounts of dimensional wood.
The use of engineered wood products such as wood I-joists is common because of their span and performance capabilities and their efficient use of wood fibre. Finger-jointed lumber makes use of short lengths of lumber. Advanced framing, or optimum value engineering, uses design restrictions to reduce the amount of wood framing in a building. This can lead to a 15–20 per cent reduction in the quantity of wood used.
SUSTAINABLE HOUSING INSIGHT Healthy Indoor Environment
Glued wood products made for structural uses such as for floor joists or sheathing (plywood and OSB) must be made from water-resistant adhesives so that wetting during storage and construction will not weaken them. Such adhesives have very low volatile organic compound (VOC) emission rates. Glued wood products made for interior uses such as particleboard and other wood products often used for furniture and cabinetry use more economical glues that have higher emission rates. Sealing the faces and edges of a panel with a laminate drastically reduces emissions. Low-emission boards are available.
overall insulating value of a wall, roof or floor assembly. NBC insulation requirements are based on effective RSI-values, which take into account the lower insulation value of studs and other thermal bridges.
Resource Efficiency
Energy Efficiency
Though a fairly good insulator, wood is not as effective as non-structural materials made specifically for thermal insulation. The wood structural members have a lower insulating value than the surrounding insulation. These “thermal bridges” conduct heat towards the cold and reduce the
Wood framing provides space for insulation, which can result in highly insulated structural components that take up very little space. Where higher insulation levels are required, consider using wood-framing materials such as “I” joists that allow more space for insulation, yet use minimal amounts of dimensional wood.
The use of engineered wood products such as wood I-joists is common because of their span and performance capabilities and their efficient use of wood fibre. Finger-jointed lumber makes use of short lengths of lumber. Advanced framing, or optimum value engineering, uses design restrictions to reduce the amount of wood framing in a building. This can lead to a 15–20 per cent reduction in the quantity of wood used.
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