CMFNH Newsletter - 2010, Quarter 3

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Quarterly CMFNH Newsletter – vol.1, ed.2 3rd Quarter 2010

Energy News & Tech Tips. Project of the Quarter

Tech Tip: Site-Built Fenestration Fenestration is an industry term referring to any glass door or window. Site-built fenestration refers to any product where the glass and frame are manufactured separately, and assembled on the job site. Typical examples of site-built fenestration are floor-toceiling glass assemblies, large lobby or conference room view windows.

Name: Estabrook Place Senior Housing City: San Leandro, California Percent above 2005 Title 24: 48.0% Developer: outEden Housing HERS Rater: DuctTesters Energy Efficiency & Sustainable Measures: Solar hot water system Hydronic space heating Energy efficient lighting ENERGY STAR® qualified appliances Photovoltaic system Roof water capture High efficiency irrigation Dual flush toilets Flow restrictions on faucets Low VOC paints Estabrook Place also participated in Build It Green’s GreenPoint Rated program, preliminarily earning 120 points. *The project completing within the current quarter exceeding Title 24 by the highest percentage will be considered Project of the Quarter

Events & Trainings The CMFNH team would like to invite you to our Multi-Family Residential New Construction Training series. For descriptions and registration information, please visit our training page or contact Ashley Beals at 916-962-7001 or beals@hm-g.com.

The majority of site-built fenestration is installed in high-rise residential (multi-family, four stories and more) and commercial buildings. In order to meet Title 24 requirements for a building permit, the contractor must submit the performance specifications of the fenestration product. Site-built fenestration presents a challenge because the final assembly cannot be certified in a controlled environment. The energy consultant must document the performance specifics of all glazing assemblies (U-value, SHGC, and VT) to meet performance approach requirements. These characteristics can be determined by consulting the CEC default values (Table 116-A, 116-B and Reference Appendix NA-6) or by utilizing the Component Modeling Approach (CMA). The energy budget is impacted significantly by how well the fenestration performs; thus, it is in the team’s best interest to use the most accurate performance values for compliance documentation. The CEC default value tables provide the lowest minimum compliant values, reference appendix NA-6 provides a slightly more complete calculation, and the CMA is an even more accurate method. For more information on CMA and its usage in California, visit: www.h-m-g.com/cma


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