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This HRV, installed in a conditioned attic, provides balanced ventilation to the whole home

Reference

Measure Guideline: Selecting Ventilation Systems for Existing Homes

Author(s)

Aldrich Robb

Organization(s)

Consortium for Advanced Residential Buildings,

CARB,

Steven Winter Associates,

SWA,

U.S. Department of Energy,

DOE

This document addresses adding—or improving—mechanical ventilation systems to existing homes. The purpose of ventilation is to remove contaminants from homes either directly or by dilution. This report discusses where, when, and how much ventilation is appropriate in a home, including some discussion of relevant codes and standards.

Publication Date

Sat, 02/01/2014 - 12:00

Pre-Retrofit Assessment of Ventilation Systems

Guide describing how to evaluate existing ventilations systems before performing home upgrades.

Whole House Ventilation Strategies for Existing Homes

Guide describing how to select and install whole-house ventilation systems for existing homes.

Unvented Conditioned Attic with Spray Foam Insulation Below Roof Deck

Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.

Whole-House Ventilation Strategies for New Homes

This guide describes how to install a whole-building ventilation system to provide adequate dilution of indoor air contaminants.

Below Deck Spray Foam Insulation for Existing Roofs

Guide describing how to add spray foam insulation to the underside of the existing roof deck as part of the conversion of a vented attic to an unvented, insulated attic.

Outdoor Air Intake Damper Controlled

No outdoor air intakes connected to return side of the HVAC system, unless controls are installed to operate intermittently & automatically based on a timer and to restrict intake when not in use (e.g., motorized damper)