Page 372 - 2018_IRC

WALL CONSTRUCTION

SECTION R609 R609.5 Other exterior window and door assemblies. Exte-
EXTERIOR WINDOWS AND DOORS rior windows and door assemblies not included within the
R609.1 General. This section prescribes performance and scope of Section R609.3 or R609.4 shall be tested in accor-
construction requirements for exterior windows and doors dance with ASTM E330. Glass in assemblies covered by this
installed in walls. Windows and doors shall be installed and section shall comply with Section R308.5.
flashed in accordance with the fenestration manufacturer’s R609.6 Windborne debris protection. Protection of exterior
written instructions. Window and door openings shall be windows, glass doors and doors with glass in buildings
flashed in accordance with Section R703.4. Written installa- located in windborne debris regions shall be in accordance
tion instructions shall be provided by the fenestration manu- with Section R301.2.1.2.
facturer for each window or door.
R609.6.1 Fenestration testing and labeling. Fenestra-
R609.2 Performance. Exterior windows and doors shall be tion shall be tested by an approved independent labora-
capable of resisting the design wind loads specified in Table tory, listed by an approved entity, and bear a label
R301.2(2) adjusted for height and exposure in accordance identifying the manufacturer, performance characteristics
with Table R301.2(3) or determined in accordance with and an approved inspection agency to indicate compliance
ASCE 7 using the allowable stress design load combinations with the requirements of the following specification(s):
of ASCE 7. For exterior windows and doors tested in accor- 1. ASTM E1886 and ASTM E1996; or
dance with Sections R609.3 and R609.5, required design
wind pressures determined from ASCE 7 using the ultimate 2. AAMA 506.
strength design (USD) are permitted to be multiplied by 0.6. R609.6.2 Impact protective systems-testing and label-
Design wind loads for exterior glazing not part of a labeled ing. Impact protective systems shall be tested for impact
assembly shall be permitted to be determined in accordance resistance by an approved independent laboratory for
with Chapter 24 of the International Building Code. Design compliance with ASTM E1886 and ASTM E1996. Impact
wind loads for exterior glazing not part of a labeled assembly protective systems shall be tested for design wind pressure
shall be permitted to be determined in accordance with Chap- by an approved independent laboratory for compliance
ter 24 of the International Building Code. with ASTM E330. Required design wind pressures shall
R609.3 Testing and labeling. Exterior windows and sliding be determined in accordance with Table R301.2(2),
doors shall be tested by an approved independent laboratory, adjusted for height and exposure in accordance with Table
and bear a label identifying manufacturer, performance char- R301.2(3) or determined in accordance with ASCE 7. For
acteristics and approved inspection agency to indicate com- the purposes of this section, design wind pressures deter-
pliance with AAMA/WDMA/CSA 101/I.S.2/A440. Exterior mined in accordance with ASCE 7 are permitted to be
side-hinged doors shall be tested and labeled as conforming multiplied by 0.6.
to AAMA/WDMA/CSA 101/I.S.2/A440 or AMD 100, or Impact protective systems bear a label identifying the
comply with Section R609.5. manufacturer, performance characteristics and an
Exception: Decorative glazed openings. approved inspection agency. Impact protective systems
shall have a permanent label providing traceability to the
R609.3.1 Comparative analysis. Structural wind load manufacturer, product designation and performance char-
design pressures for window and door units different than acteristics. The permanent label shall be acid etched, sand
the size tested in accordance with Section R609.3 shall be blasted, ceramic fired, laser etched, embossed or of a type
permitted to be different than the design value of the tested that, once applied, cannot be removed without being
unit where determined in accordance with one of the fol- destroyed.
lowing comparative analysis methods:
R609.7 Anchorage methods. The methods cited in this sec-
1. Structural wind load design pressures for window tion apply only to anchorage of window and glass door
and door units smaller than the size tested in accor- assemblies to the main force-resisting system.
dance with Section R609.3 shall be permitted to be
higher than the design value of the tested unit pro- R609.7.1 Anchoring requirements. Window and glass
vided such higher pressures are determined by door assemblies shall be anchored in accordance with the
accepted engineering analysis. Components of the published manufacturer’s recommendations to achieve the
smaller unit shall be the same as those of the tested design pressure specified. Substitute anchoring systems
unit. Where such calculated design pressures are used for substrates not specified by the fenestration manu-
used, they shall be validated by an additional test of facturer shall provide equal or greater anchoring perfor-
the window or door unit having the highest allow- mance as demonstrated by accepted engineering practice.
able design pressure. R609.7.2 Anchorage details. Products shall be anchored
2. In accordance with WDMA I.S.11. in accordance with the minimum requirements illustrated
in Figures R609.7.2(1), R609.7.2(2), R609.7.2(3),
R609.4 Garage doors. Garage doors shall be tested in accor- R609.7.2(4), R609.7.2(5), R609.7.2(6), R609.7.2(7) and
dance with either ASTM E330 or ANSI/DASMA 108, and R609.7.2(8).
shall meet the acceptance criteria of ANSI/DASMA 108.

2018 INTERNATIONAL RESIDENTIAL CODE ® 347
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