PGE - Ventilate Right, Build Tight

Tuesday, April 24, 2012 - 9:00am to 4:30pm

Also Offered March 13 (Tuesday, 9:00 am to 4:30 pm) Santa Rosa--Builders Exchange
Description California builders and home performance contractors are reluctant to tighten homes further because they don’t know how to mechanically ventilate for moisture control and outdoor air supply. Building tightness and good mechanical ventilation are two sides of the same coin, and both are essential to building and retrofitting homes to near zero energy levels.

Starting with the basic concepts of residential ventilation, this class will explain everything residential architects, builders and mechanical contractors need to know to select, design and install affordable and effective ventilation systems for new homes - or for existing homes with indoor air quality (IAQ) problems. Topics include:

Types of indoor air pollutants and how best to control them
Exhaust ventilation for source control of indoor moisture
Ventilation standards and minimum ventilation rates
Types of mechanical ventilation systems, including the advantages and limitations of each
Sizing, selecting, and installing ventilation fans and ducts
Options for complying with Title 24 2008 requirements

Once we learn how to ventilate right, there is nothing to stop us from making homes as snug, comfortable, and energy efficient as possible. Judy's growing "fan club" will be available for exhibit and demonstration.

Audience Level This class covers the most basic to advanced concepts needed to understand what Title 24 ventilation requirements and how to evaluate the various options for meeting or exceeding code requirements. It is appropriate for those new to this topic as well as HVAC professionals. Basic familiarity with residential heating and cooling systems is assumed.
Introductions and Safety Announcements
Introduction to residential mechanical ventilation
Indoor air pollutants and source control
Intermittent local exhaust for moisture control
Continuous ventilation for outdoor air supply
Title 24 minimum requirements
Airtightness, pressure & fan sizing
Qualities of a good ventilation system
System Types: exhaust, supply, and balanced
Evaluating ventilation in existing homes
Review & open forum
Wrap-up, Q&A, Post-course evaluation
Instructor(s) Judy Roberson
Judy Roberson is a residential building scientist and ventilation consultant at PG&E's Energy Training Center. Her UC Berkeley thesis is a critique of ASHRAE's residential ventilation Standard 62.2. While at Lawrence Berkeley National Laboratory (LBNL), she supported federal Energy Star efficiency programs, including new and existing homes. Judy learned building design and construction in Wisconsin, where she worked as an apprentice carpenter on multifamily projects, architectural drafter at a design-build firm, and apprentice to a passive solar architect. She has B.S. and M.S. degrees from Texas A&M University.
Resources N/A
Cost No fee for this program
Credits AIA: 6 (HSW)


Click here for more information and to register.




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