Tempo:
SUSTAINABLE HOUSING INSIGHT Energy Efficiency
Use raised heel trusses or rafters/roof joists that are deep enough to contain high levels of insulation over exterior walls. Consider using raised heel trusses that are deep enough at the eaves to accommodate higher levels of insulation than required by the building code. Consider increasing the depth of roof framing members or reducing the spacing between them to accommodate future solar thermal and photovoltaic panels. Consult a structural engineer.
Affordability When planned in advance, attic space can be converted to high-quality living space. This is economical because it provides additional space without increasing the building footprint and makes use of an existing roof. Consider these factors when planning attic rooms:
Resource Efficiency Prefabricated roof trusses are widely used for residential roof framing. Trusses use an efficient arrangement of select lumber and metal plates to provide long spans and reduce the amount of wood required as compared with framing with lumber rafters and joists. They provide the following advantages:
Designed to suit local climatic conditions.
Fast to erect leading to earlier close-in.
Ample space for insulation and ventilation.
Available to suit all possible roof shapes.
Eliminate cut-offs at the site.
Plan stair locations so access can be extended to the attic space in the future. Size ceiling joists as floor joists or design the attic trusses or rafters for future habitable space. Use ceiling insulation that may be moved to the roof assembly during conversion. Ensure that the roof assembly will accommodate sufficient insulation with a ventilation air space above it. Steeper roof slopes shed snow and rain more effectively and enclose more attic volume than lower slopes. Rough in or plan for future services such as electricity, plumbing, heating, ventilation, cable and telephone.
Use raised heel trusses or rafters/roof joists that are deep enough to contain high levels of insulation over exterior walls. Consider using raised heel trusses that are deep enough at the eaves to accommodate higher levels of insulation than required by the building code. Consider increasing the depth of roof framing members or reducing the spacing between them to accommodate future solar thermal and photovoltaic panels. Consult a structural engineer.
Affordability When planned in advance, attic space can be converted to high-quality living space. This is economical because it provides additional space without increasing the building footprint and makes use of an existing roof. Consider these factors when planning attic rooms:
Resource Efficiency Prefabricated roof trusses are widely used for residential roof framing. Trusses use an efficient arrangement of select lumber and metal plates to provide long spans and reduce the amount of wood required as compared with framing with lumber rafters and joists. They provide the following advantages:
Designed to suit local climatic conditions.
Fast to erect leading to earlier close-in.
Ample space for insulation and ventilation.
Available to suit all possible roof shapes.
Eliminate cut-offs at the site.
Plan stair locations so access can be extended to the attic space in the future. Size ceiling joists as floor joists or design the attic trusses or rafters for future habitable space. Use ceiling insulation that may be moved to the roof assembly during conversion. Ensure that the roof assembly will accommodate sufficient insulation with a ventilation air space above it. Steeper roof slopes shed snow and rain more effectively and enclose more attic volume than lower slopes. Rough in or plan for future services such as electricity, plumbing, heating, ventilation, cable and telephone.
©
2026
Lehal.net