Page 963 - 2018_IRC
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APPENDIX S
AS106.13 Braced wall panels. Plastered strawbale walls 3. Sill plates shall be not less than nominal 2-inch by 4-
used as braced wall panels for one-story buildings shall be in inch (51 mm by 102 mm) with anchoring complying
accordance with Section R602.10 and Tables AS106.13(1), with Section R403.1.6.
AS106.13(2) and AS106.13(3). Wind design criteria shall be 4. Mesh attached with staples at 4 inches (51 mm) on cen-
in accordance with Section R301.2.1. Seismic design criteria ter shall be considered to be capable of resisting uplift
shall be in accordance with Section R301.2.2. forces of 100 plf (1459 N/m) for each plaster skin.
AS106.13.1 Bale wall thickness. The thickness of straw- 5. Mesh attached with staples at 2 inches (51 mm) on cen-
bale braced wall panels without their plaster shall be not ter shall be considered to be capable of resisting uplift
less than 15 inches (381 mm). forces of 200 plf (2918 N/m) for each plaster skin.
AS106.13.2 Sill plates. Sill plates shall be in accordance AS106.15 Post-and-beam with strawbale infill. Post-and-
with Table AS106.13(1). beam with strawbale infill systems shall be in accordance
AS106.13.3 Sill plate fasteners. Sill plates shall be fas- with Figure AS105.1(4) and Items 1 through 6, or be of an
5
tened with not less than / -inch-diameter (15.9 mm) steel approved engineered design.
8
3
anchor bolts with 3-inch by 3-inch by / -inch (76.2 mm 1. Beams shall be of the dimensions and number of mem-
16
by 76.2 mm by 4.8 mm) steel washers, with not less than bers in accordance with Table R602.7(1), where the
7-inch (177.8 mm) embedment in a concrete or masonry space between posts equals the span in the table.
foundation, or shall be an approved equivalent, with the 1
spacing shown in Table AS106.13(1). Anchor bolts or 2. Beam ends shall bear over posts not less than 1 / 2
other fasteners into framed floors shall be of an approved inches (38 mm) or be supported by a framing anchor in
engineered design. accordance with Table R602.7(1).
AS106.14 Resistance to wind uplift forces. Plaster mesh in 3. Discontinuous beam ends shall be spliced with a metal
skins of strawbale walls that resist uplift forces from the roof strap with not less than 1,000-pound (454 kg) wind or
assembly, as determined in accordance with Section R802.11, seismic load tension capacity. Where the wall line
shall be in accordance with all of the following: includes a braced wall pane,l the strap shall have not
less than a 4,000-pound (1814 kg) capacity.
1. Plaster shall be any type and thickness allowed in Sec-
tion AS104. 4. Each post shall equal NJ + 1 in accordance with Table
R602.7(1), where the space between posts equals the
2. Mesh shall be any type allowed in Table AS106.13(1), span in the table.
and shall be attached to top plates or roof-bearing ele-
ments and to sill plates in accordance with Section 5. Posts shall be connected to the beam by an approved
AS106.9.2. means.
6. Roof and ceiling framing shall be attached to the beam
in accordance with Table R602.3(1), Items 2 and 6.
TABLE AS106.13(1)
PLASTERED STRAWBALE BRACED WALL PANEL TYPES
PLASTER (both sides) b c
a
WALL Thickness SILL PLATES ANCHOR BOLT MESH d STAPLE e
SPACING
SPACING
DESIGNATION Type (minimum in inches (nominal size in (inches on center) (inches) (inches on center)
inches)
each side)
A1 Clay 1.5 2 4 32 None None
2 2 high-density
A2 Clay 1.5 2 4 3 2 2
polypropylene
A3 Clay 1.5 2 4 3 2 2 2 14 gage 4
B Soil-cement 1 4 4 2 4 2 2 14 gage 2
C1 Lime 7 / 8 2 4 32 17-gage woven wire 3
C2 Lime 7 / 8 4 4 2 4 2 2 14 gage 2
D1 Cement-lime 7 / 8 4 4 32 17 gage woven wire 2
D2 Cement-lime 7 / 8 4 4 2 4 2 2 14 gage 2
E1 Cement 7 / 8 4 4 3 2 2 2 14 gage 2
E2 Cement 1.5 4 4 2 4 2 2 14 gage 2
SI: 1 inch = 25.4 mm.
a. Plasters shall comply with Sections AS104.4.3 through AS104.4.8, AS106.7, AS106.8 and AS106.12.
b. Sill plates shall be Douglas fir-larch or southern pine and shall be preservative treated where required by the International Residential Code.
c. Anchor bolts shall be in accordance with Section AS106.13.3 at the spacing shown in this table.
d. Installed in accordance with Section AS106.9.
e. Staples shall be in accordance with Section AS106.9.2 at the spacing shown in this table.
938 2018 INTERNATIONAL RESIDENTIAL CODE ®
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