RCMA Codes Update Prescriptive Path to Cool Roofing (and so much more!) March 29, 2011 Michael Fischer RCMA Director of Codes

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1 RCMA Codes Update Prescriptive Path to Cool Roofing (and so much more!) March 29, 2011 Michael Fischer RCMA Director of Codes

2 RCMA s Mission A strategic partnership of roof coating manufacturers and affiliates that provides a unified voice to advance, promote and expand the international market for roof coatings through education, technical advancement, and advocacy of industry issues.

3 2012 International Codes 2012 ICC International Green Construction Code (IgCC) 2015 International Codes Florida Building Code Product Standards Code Activities Stakeholder Relationships

4 IECC 2012 International Energy Conservation Code (IECC) DOE Stakeholder group reflectivity proposal contained several critical technical flaws. Despite the flaws (acknowledged by the committee) the proposal was approved, subject to the Final Action Hearing (FAH). IECC FAH held last October: Residential provisions proposed by the DOE were Disapproved. Revised non-residential requirements WERE approved for Southern climate zones on low-slope applications over conditioned (and unvented) attics. Exception for aggregate surfaced roofs.

5 IECC 2012: Reflectivity Roof solar reflectance and thermal emittance. Low-sloped roofs, with a slope less than 2 units vertical in12 horizontal, directly above cooled conditioned spaces in climate zones 1, 2, and 3 shall comply with one or more of the options in Table Exception: The following roofs and portions of roofs are exempt from the requirements in Table : 1. Portions of roofs that include or are covered by: 1.1. Photovoltaic systems or components Solar air or water heating systems or components. 1.3 Roof gardens or landscaped roofs Above-roof decks or walkways Skylights HVAC systems, components, and other opaque objects mounted above the roof. 2. Portions of roofs shaded during the peak sun angle on the summer solstice by permanent features of the building, or by permanent features of adjacent buildings 3. Portions of roofs that are ballasted with a minimum stone ballast of 17 lbs/ft2 (74 kg/m2) or 23 lbs/ft2 pavers (117 kg/m2) 4. Roofs where a minimum of 75 percent of the roof area meets a minimum of one of the exceptions above.

6 IECC 2012: Reflectivity

7 IECC Status ICC Final Action Hearings Under Appeal Appellants: AEC, NMHC, NAA, IWFA, BOMA, AGC Flat Glass, Pilkington Hearing in Chicago Thursday, March 31 Appeal based upon EECC (ASE) and NASEO participation in the FAH Code slated to be published in mid-year; adopted in 2012

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13 IgCC 2012 ICC International Green Construction Code (IgCC) 2012 Schedule Draft Version 2.0 Published 11/03/10 Code changes submitted 01/03/11 Code Development Hearings: 05/16-22/11 Public Comment deadline: 08/12/11 Final Action Hearing: 11/2-6/11 Publish 2012 IgCC (03/12)

14 IgCC 2012: Roofing Issues Base Reflectivity Requirements on IECC Surplus Material Credit (Construction Waste) Photovoltaic Structural Load (IBC Reference) Definition of Alterations

15 IgCC 2012: Reflectivity Proposal AGED SOLAR REFLECTANCE. The solar reflectance value of a material after it has been installed and subjected to actual weather conditions for not less than three years. IMPERVIOUS SURFACE. Paved concrete or asphalt and other similar surfaces that readily accommodate the flow of water with relatively little absorption, as typically used at exterior horizontal areas including, but not limited to, parking lots, bikeways, walkways, plazas and fire lanes. Impervious surface does not include building elements including, but not limited to, roof assemblies, rooftop structures, and equipment. INFRARED EMITTANCE. The ratio of radiant heat emitted by a sample to that emitted by a black body radiator at the same temperature. SOLAR REFLECTANCE. A measure of the ability of a surface material to reflect sunlight. It is the fraction of solar flux, including the visible, infrared and ultraviolet wavelengths, reflected by a surface, expressed as a percentage on a scale of 0 to 1. Solar reflectance is also referred to as "albedo." SOLAR REFLECTANCE INDEX (SRI). A value that incorporates both solar reflectance and infrared emittance in a single measure. to represent a material's temperature in the sun. SRI quantifies how hot a surface would get relative to standard black and standard white surfaces. SRI is calculated using equations based on previously measured values of solar reflectance and infrared emittance as laid out in ASTM E1980. SRI is expressed as a fraction, 0.0 to 1.0, or percentage, 0 percent to 100 percent.

16 IgCC 2012: Recycled Content Recycled content building materials. Recycled content building materials shall be evaluated for compliance using either mass or cost criteria consistent with the option selected for compliance with section Determination of the mass or cost of recycled content building materials shall be based solely upon the portion of recycled content of the material Pre-consumer recycled content shall be counted as one half of its actual content in the material Recycled content building materials. Recycled content building materials shall comply with one of the following: Contain not less than 25 percent combined post-consumer and pre-consumer recovered material, and shall comply with Section Contain not less than 50 percent combined post-consumer and pre-consumer recovered material. The pre-consumer recycled content shall be counted as one-half of its actual content in the material.

17 Other IgCC issues Water Resources US EPA Participation Hazardous Wastes Chemical Management Plans Environmentally Preferable Materials Human Health Consumption Standards Building Material Toxicity Reductions

18 IBC-IRC-IUWIC-IECC-IgCC 2015 Issues Sustainability Reflectivity High Wind Requirements Correlating Language for ASCE-7 Group A Proposals Due January 2012

19 Florida Building Code Coatings Over Asphalt Shingles No PUF and/or elastomeric coating systems shall be applied over existing composition shingles.

20 FBC Modification Mod 3799, Mark Zehnal, Pembroke Pines FL (Past-President RCASF, Miami-Dade BCCO Staff, FBC Roofing TAC Member) Note: The FBC Currently limits installation of roof coverings over existing systems No elastomeric and or maintenance coating systems shall be applied over existing asphalt shingles unless specifically approved by the shingle manufacturer.

21 Revised Application of elastomeric and or maintenance coating systems over existing asphalt shingles shall be in accordance with the shingle manufacturer s approved installation instructions. Additional modification by Garth Parker, Somay Application of elastomeric and or maintenance coating systems over existing asphalt shingles shall be in accordance with the shingle or elastomeric coating manufacturer's approved installation instructions.

22 IBHS Wildfire Issues Hail Testing NRCA Collaboration FRSA Stakeholder Issues Roof Coatings ASCE-7

23 IBHS Research Facility

24 RCMA Codes Report Thank You!