H
Heating, Ventilation, and Air Conditioning
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Over 100 square feet: Ventilation for bathrooms over 100 square feet is based on the fixtures in the bathroom. Calculations for the minimum exhaust rate must allow for 50 cfm for each standard toilet, shower, or tub( standard or jetted). For example, an 11 ' × 14 ' bath( 154 square feet) with one toilet, one shower, and one tub must have a fan that exhausts at least 150 cfm.
VERIFICATION
H5.
Field Verification: The Rater will conduct field compliance verification and take photos of venting and control strategy, and ENERGY STAR rating on the fan housing of the installed fan( if visible).
Documentation: The Rater must collect the following:
INTENT
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The sixing method and calculations for minimum airflow results The ENERGY STAR label listing from the website, if not verified in the field HERS Rater’ s documentation of verified exhaust air flow
To promote indoor air quality, control indoor humidity, and save energy by using efficient local exhaust fans and controls.
ADVANCED PRACTICES FOR COOLING
CRITERIA FOR QUALIFICATION Up to two points of credit are available for the following advanced cooling practices: H5.1. ENERGY STAR Ceiling Fans in Living Areas and All Bedrooms( 1 Point)
Install ENERGY STAR ceiling fans and light kits in areas where occupants spent the majority of their time. This includes living rooms, family rooms, or recreation rooms, but not kitchens, laundry rooms, garages, basements, bathrooms, etc.
ENERGY STAR fans with built-in lights or add-on light kits must have ENERGY STAR-qualified efficient light fixtures. ENERGY STAR fans without lights also qualify for this measure.
DRAFT
H5.2. Operable Windows and Skylights Placed to Induce Cross Ventilation in At Least One Room in 80 % of Units( 1 Point)
Note: This measure applies to multifamily projects only. Note: This measure applies to residential portions of the project only.
Operable windows and / or skylights must be installed in at least one main room in at least 80 % of units to allow for cross ventilation. In 80 % of all units, operable windows( including private balcony doors) and / or skylights must be installed on two or more adjacent or opposing walls( or the ceiling, for skylights) in at least one major living area( i. e., living rooms, family rooms, or recreation rooms), kitchen, or master bedroom to induce cross-ventilation in the unit.
Inlet and outlet window operational areas must each be a minimum of 2 % of the floor area of that ventilation area. Windows on adjacent walls cannot be in a direct corner window format. There must be a minimum of four feet between window openings( measured in a direct line between the closest edges of the
DRAFT GreenPoint Rated New Home Rating Manual 52 Version 6.0, September 2013
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