1. The thickness of the concrete in flat insulating concrete form walls not in contact with the ground shall be
   1. not less than 140 mm, and
   2. constant for the entire height of the wall.

1. Horizontal reinforcement in above-grade flat insulating concrete form walls shall
   1. consist of
      1. one 10M bar placed not more than 300 mm from the top of the wall, and
      2. 10M bars at 600 mm o.c., and
   2. be placed in the middle third of the wall section.
2. Vertical reinforcement in above-grade flat insulating concrete form walls shall
   1. consist of 10M bars at 400 mm o.c., and
   2. be placed in the middle third of the wall section.
3. Vertical reinforcement required by Sentence (2) and interrupted by wall openings shall be placed not more than 600 mm from each side of the opening.

1. No openings shall occur within 1 200 mm of interior and exterior corners of exterior non-loadbearing flat insulating concrete form walls.
2. Portions of walls above openings in non-loadbearing flat insulating concrete form walls shall have a minimum depth of concrete of no less than 200 mm across the width of the opening.
3. Openings that are more than 600 mm but not more than 3 000 mm in width in non-loadbearing flat insulating concrete form walls shall be reinforced at the top and bottom with one 10M bar.
4. Openings more than 3 000 mm in width in non-loadbearing flat insulating concrete form walls shall be reinforced on all four sides with two 10M bars.
5. Reinforcing bars described in Sentences (3) and (4) shall extend 600 mm beyond the edges of the opening.
6. The cumulative width of openings in non-loadbearing flat insulating concrete form walls shall not make up more than 70% of the length of any wall.

1. No openings shall occur within 1 200 mm of interior and exterior corners of exterior loadbearing flat insulating concrete form walls.
2. In loadbearing flat insulating concrete form walls, lintels shall be provided over all openings wider than 900 mm.
3. Lintels described in Sentence (2) shall be constructed in accordance with Span Table 9.20.17.4.-A, 9.20.17.4.-B or 9.20.17.4.-C.
4. Lintels described in Sentence (2) over openings wider than 1 200 mm shall be reinforced for shear with 10M stirrups at a maximum spacing of half the distance from the bottom reinforcing bar to the top of the lintel.

1. Floor joists supported on the side of flat insulating concrete form walls shall be supported with joist hangers secured to wood ledger boards.
2. The ledger boards referred to in Sentence (1) shall be not less than
   1. 38 mm thick, and
   2. the depth of the floor joists.
3. Anchor bolts shall be used to secure ledger boards to flat insulating concrete form walls and shall be
   1. embedded in the wall to a depth not less than 100 mm, and
   2. spaced in accordance with Table 9.20.17.5.
4. Floor joists and building frames supported on the top of flat insulating concrete form walls shall be anchored in conformance with Article 9.23.6.1.

Table 9.20.17.5.
Maximum Anchor Bolt Spacing for the Connection of Floor Ledgers to Flat Insulating Concrete Form Walls
Forming Part of Sentence 9.20.17.5.(3)

1. Roof framing supported on the top of flat insulating concrete form walls shall be fixed to the top plates, which shall be anchored to the wall with anchor bolts
   1. not less than 12.7 mm in diameter, and
   2. spaced at not more than 1 200 mm o.c.
2. The anchor bolts described in Sentence (1) shall be placed in the centre of the flat insulating concrete form wall and shall be embedded no less than 100 mm into the concrete.
3. Attachment of roof framing to wood top plates shall be in accordance with Table 9.23.3.4.

1. Above-ground flat insulating concrete form walls shall be protected from precipitation and damage in conformance with Section 9.27.