Access attic

(1)  Every attic or roof space shall be provided with an access hatch where the attic or roof space,     (a)   measures not less than,              (i)   10 m² in area,             (ii)   1 000 mm in length or width, and            (iii)   600 mm in height over at least the area described in Subclauses (i) […]
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Air Barrier Details

Air Barrier Details Many places in the building envelope such as rim joists, tops and ends of partition walls, openings, services, vent stacks, chimneys, unusual framing details and electrical, plumbing and mechanical penetrations are prone to air leakage (Figure 6) and must be carefully sealed in a durable manner (that is for the life of […]
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Anchorage of Building Frames

Anchorage of Building Frames (1)  Building frames shall be anchored to the foundation unless a structural analysis of wind and earth pressures shows anchorage is not required.     (2)  Except as provided in Article 9.23.6.3., anchorage shall be provided by embedding the ends of the first floor joists in concrete, or fastening the sill plate to the […]
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Anchorage of Floor or Roof Assemblies

Anchorage of Floor or Roof Assemblies (1)  Where required to receive lateral support, masonry walls shall be anchored to each floor or roof assembly at maximum intervals of 2 m, except that anchorage of floor joists not more than 1 m above grade may be omitted.  (2)  Anchors required in Sentence (1) shall be corrosion-resistant and be […]
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Attics and Roof Spaces

Attics and Roof Spaces (1)  Ceiling joists or truss bottom chords in residential attic or roof spaces having limited accessibility that precludes the storage of equipment or material shall be designed for a total specified load of not less than 0.35 kPa, where the total specified load is the sum of the specified dead load plus […]
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Base flashing

Base flashing When a roof intersects with a wall or another roof penetration, such as a plumbing vent, the roofing system should be turned up to make the junction watertight. The part of the roofing that is turned up is generally known as a “base flashing.” It may be made of the same material as […]
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