Page 966 - 2018_IRC

APPENDIX S

6. Cement plaster on each side of the wall shall be not SECTION AS109
less than 1 inch (25 mm) thick. REFERENCED STANDARDS
7. Plaster application shall be in accordance with Sec-
tion AS104.4.8 for the number and thickness of ASTM C5—10 Standard Specification for AS104.4.6.1
coats. Quicklime for
Structural Purposes
AS107.2 Openings in rated walls. Openings and penetra-
Standard Test Method for
tions in bale walls required to have a fire-resistance rating ASTM C109/C Compressive Strength of AS106.6.1
109M—2015el
shall satisfy the same requirements for openings and penetra- Hydraulic Cement Mortars
tions as prescribed in this code.
ASTM C141/C Standard Specification for AS104.4.6.1
AS107.3 Clearance to fireplaces and chimneys. Strawbale 141M—14 Hydrated Hydraulic Lime
surfaces adjacent to fireplaces or chimneys shall be finished for Structural Purposes
3
with not less than / -inch-thick (10 mm) plaster of any type ASTM C206—14 Standard Specification for AS104.4.6.1
8
permitted by this appendix. Clearance from the face of such Finishing Hydrated Lime
plaster to fireplaces and chimneys shall be maintained as ASTM C926—15B Standard Specification for AS104.4.7
required from fireplaces and chimneys to combustibles in Application of Portland AS104.4.8
Chapter 10, or as required by manufacturer’s instructions, Cement Based Plaster
whichever is more restrictive. ASTM C1707—11 Standard Specification AS104.4.6.1
for Pozzolanic Hydraulic
Lime for Structural Purposes
SECTION AS108 ASTM E2392/ Standard Guide for Design AS104.4.3.2
THERMAL INSULATION ASTM E2392M of Earthen Wall
—10 Building Systems
AS108.1 R-value. The unit R-value of a strawbale wall with ASTM BS1 Part 1: Building Lime. AS104.4.6.1
bales laid flat is R-1.55 for each inch of bale thickness. The ASTM BS EN 459 Definitions, Specifications
unit R-value of a strawbale wall with bales on-edge is R-1.85 —2015 and Conformity Criteria;
for each inch of bale thickness. Part 2: Test Methods
AS108.2 Compliance with Section R302.10.1. Straw bales
meet the requirements for insulation materials in Section
R302.10.1 for flame spread index and smoke-developed
index as tested in accordance with ASTM E84.

2018 INTERNATIONAL RESIDENTIAL CODE ® 941
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