A
Site
Field Verification: The Rater must take representative photos of all criteria at the foundation and / or site work phase.
INTENT
B4.
B5.
To improve indoor air quality and structural durability by reducing moisture migration into the home from the foundation.
MOISTURE CONTROLLED CRAWLSPACE
CRITERIA FOR QUALIFICATION One point of credit may be given if all of the following criteria are met:
� A premium vapor retarder system, with a minimum 6-mil thickness, is installed in the crawlspace. � The vapor retarder is extended up the wall and piers, and is affixed with adhesive / caulk, furring strips, or treated wood nailer. � Vapor retardant is installed over the entire crawlspace floor. � The vapor retarder is continuous, with seams and joints lapped 12 inches, staked to the ground, taped, and sealed with mastic at piers, pipes, etc. � Any penetrations or other areas where the vapor barrier has been compromised have been sealed with tape and mastic.
It is recommended that the vapor retarder be as thick as possible for durability purposes, and that the vapor retarder be white( as translucent or black plastic will make the space very dark and difficult to navigate when accessing the space in the future).
VERIFICATION
Field Verification: The Rater will complete field verification and take photos of the vapor retarder’ s coverage, seams, joints, and attachment to walls and piers.
Documentation: The Rater must collect the manufacturer’ s documentation of the vapor retarder’ s thickness.
INTENT
To improve indoor air quality and structural durability by reducing moisture migration from the crawlspace into the home.
STRUCTURAL PEST CONTROLS
CRITERIA FOR QUALIFICATION
DRAFT
Up to two points of credit may be given, as follows: B5.1. Termite Shields and Separated Exterior Wood-to-Concrete Connections( 1 Point) This measure applies to single-family homes and multi-family low-rise buildings of one to three stories.
DRAFT GreenPoint Rated New Home Rating Manual 12 Version 6.0, September 2013
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