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Building Science for Dry Climates 6 - Mechanical Ventilation

Presentation

Presentation by Home Performance Contractor Academy giving building science advice for for homes in dry climate zones, specifically mechanical ventilation for air flow. Part 6 of 7.

The polyethylene ceiling vapor barrier is sealed to form an air barrier around the exhaust fan in this very cold climate location (≥ CZ 6).

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Ceiling fans can be used to aid a night flush strategy by helping to cool down wall and floor surfaces more thoroughly at night, and by providing comfort ventilation during the day

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Cooling with a Whole-House Fan

Reference

DOE Energy Saver webpage summarizing the use of whole-house fans for cooling.

Improving Comfort, Saving Energy with Large Circulator Fans

Reference

Article describing how air speed affects thermal comfort and how fans can provide energy savings.

Cooling with Ventilation

Reference

Report providing recommendations to builders regarding how to reduce cooling loads, use air-circulation fans, natural ventilation, window and building design for natural ventilation, and whole-house fans.

Designing Houses That Keep Their Cool

Reference

Article from Green Building Advisor on strategies to take when building homes to reduce the need for air conditioning, including insulation, windows, site selection, and roofing.

Attic Ventilation Fans

Information Guide

Information guide describing the use of attic ventilation fans to mechanically pull outside air through the attic in an attempt to cool the attic, control moisture, and prevent ice dams.