Ice Dams Reveal Heat Loss Issues

…even eliminate, the chances of ice dams forming in the first placen.   Air Sealing Much of the heat in an attic comes from warm air that leaks out from…

Simple Techniques for Lowering the Cost of Zero Energy Homes

…strategies. These economies essentially paid for all the energy upgrades according to the comprehensive report on the project.   Air Sealing Air sealing is a highly cost-effective way to reduce…

Don’t Buy a New Home that Sucks!

…protect the home from condensation problems, but many new homes have air leaks because the builder did not pay enough attention to air sealing. Heating and cooling systems are often…

Keep Your Cool as Summer Heats Up

…standard air conditioning. You know that a breeze blowing across your skin feels good on a hot day. Moving air pulls heat away from your body faster than still air….

Affordable Zero Energy Home Construction – an interview with Carter Scott

…door test is about 1.0 air changes per hour at 50 Pascals (ACH50). Our lowest was 0.50 ACH50. Which air sealing techniques have you found to be most cost effective?…

Affordable Zero Energy Home Construction

air changes per hour at 50 Pascals (ACH50). Our lowest was 0.50 ACH50. Which air sealing techniques have you found to be most cost effective? CS: We have found that…

The Mystery of Misapplied Mini-Splits

…Load Homes It’s certainly possible to install a ductless mini-split in a conventional home with “typical” insulation and air sealing, but unless you improve the energy efficiency of the building…

Place Ducts Inside the Building Envelope

…to distribute conditioned air. This air is intended to warm or cool the building. And yet, the ducts almost always run through unconditioned spaces. Conditioned air runs through unconditioned space…

Wall Sensor Measures Moisture in a Double-stud Wall

Air Sealing The blower door test on this house showed 1.0 ACH50. It’s not as tight as a passive house, but it’s tight. The primary air barrier is the exterior…

Double Stud Wall Simplified – Low Cost, High Performance

…simultaneously reduce cost while optimizing efficiency and occupant comfort. Integrated with Pro Clima air sealing and moisture control components, the double-stud wall provides unmatched economic value, safety from moisture damage,…

Energy-Efficient Low-Income Apartments 

…an airtight building.   Fresh Filtered Air After units have been air sealed it is important to provide fresh air while retaining the heat in living units. This can be…

Why Build Zero Energy Homes?

…found in conventional homes. Air Pollutants Indoor contaminants can accumulate inside highly airtight buildings due to lower building air leakage. Contaminants exist in all buildings, but here again, the health…

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