DRAFT GreenPoint Rated Existing Home Rating Manual version 6.0 | Página 46
D
Structural Frame and Building Envelope VERIFICATION Field Verification: The Rater will conduct field compliance verification and take photos that show the measurement. Documentation: The Rater must collect a building plan or specification detail of the truss that depicts the raised heel and a minimum of 75% of the attic/ceiling insulation value as noted within Title 24 report. INTENT To improve the thermal envelope by accommodating the fullest depth of insulation at the outer edges of exterior walls.
D7.
OVERHANGS AND GUTTERS
CRITERIA FOR QUALIFICATION This measure is available for partial credit based on the percentage of overhangs that meet the specific criteria of the measure. Up to two points of credit are available for building an overhang around the building’s entire roof, with gutters installed on 90% of eaves, as follows: ? ? One point for a 16 inch overhang and gutters Two points for a 24 inch overhang and gutters
Note: This measure is only available to homes with three floors or less. The overhang distance is measured horizontally from the outer edge of the fascia board or rafter tail to the finish siding (not to the outer edge of the gutter). Gutters must discharge at least five feet from the foundation (either above or below ground). The water may be discharged into the public storm drain system (including a driveway leading to the storm drain system), a rainwater catchment system, or a planting bed that is able to accept larger amounts of water without erosion occurring (due to a deliberate depression, such as a swale, or a high infiltration rate area, such as a gravel-filled drain bed). Rain chains do not qualify as downspouts, unless they are 24 inches from the home, do not splash on the home, and have deliberate drainage pathways discharging at least 5 feet from the foundation, as described previously. VERIFICATION Field Verification: The Rater will conduct field compliance verification and take photos of overhangs and gutters. Documentation: Plans may be required with dimension of overhang depth . INTENT To improve the durability of exterior surfaces by reducing the exposure to water and sun. To reduce the potential of moisture-related problems by positively draining water away from the foundation.
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GreenPoint Rated Existing Home Rating Manual Version 6.0, September 2013 © Build It Green