Best Practice Guide

Glossary

Introduction

Planning an Energy Program

Funding and Approval

Lighting

Building Envelope

Central HVAC System

Distributed Generation

Demand Response

Commissioning

Procurement Policy

Water Use

Education

Energy Efficiency in Telecommuting

Resources and Appendices

Lessons Learned

Best Practice Guide Glossary

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INFILTRATION BARRIER Return to list of terms

A material placed on the outside or the inside of exterior wall framing to restrict inward air leakage, while permitting the outward escape of water vapor from the wall cavity. [See California Code of Regulations, Title 24, Section 2-5302]

Source: California Energy Commission