Ventilation for Designing Better Buildings

Zehnder: Benefits of a Continuously Ventilated Bathroom

Posted by Sarah Lozanova

Jan 26, 2017 11:32:00 AM

Does your bathroom have mold growth around the shower, cabinets, and fixtures? Does your bathroom have stale air, excessive odors, or a musty smell? Common problems like these may be affecting your bathroom without you even realizing. Here are the facts about these issues and how to fix them before they start harming your indoor air quality.

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Topics: Ventilation Strategies

Common Sources of Indoor Air Pollution

Posted by Sarah Lozanova

Jan 6, 2017 2:02:00 PM

Contrary to popular belief, indoor air is commonly two to five times more polluted than outdoor air, according to the Environmental Protection Agency. Studies confirm this trend in rural and urban dwellings alike. This suggests that builders and occupants have a lot of options when it comes to minimizing exposure to pollutants.Indoor air quality ranks as one of the top five environmental health risks, and numerous illnesses are linked to airborne contaminants. Gaining an awareness of common sources of indoor air contamination is instrumental in promoting overall occupant health.Biological Contaminants

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Topics: IAQ

Joseph Lstiburek's Concern About Indoor Air Quality

Posted by Zehnder America

Jan 1, 2017 3:05:00 PM

Builders, architects, and engineers are seeking ways to create smarter homes that use less energy, have greater comfort, and are more durable. Now more than ever, many new homes have innovative wall systems that prevent thermal bridging, air barriers that solve condensation issues in walls, and are air sealed to stop drafts. High levels of indoor air pollutants, mold, and pollen can erode the health of homeowners. To truly build smarter homes, high indoor air quality is essential.

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ComfoAir 70 Profiled by the Journal of Light Construction

Posted by Zehnder America

Dec 30, 2016 11:21:29 AM

Shortly after Zehnder America announced the release of its new ComfoAir 70 energy recovery ventilation unit in the North American market, the Journal of Light Construction profiled the installation of the first two units in the United States. The article, entitled “Effective, Retrofit ERV,” examines how the ComfoAir 70 can be installed without ductwork, creating a simple ventilation solution for existing apartments and homes.Writer Ted Cushman explains how the ComfoAir 70 energy recovery ventilator transfers both humidity and heat between the exhaust and intake air streams, saving energy and adjusting humidity levels in the home. He visited the job site where Jim Bradley was completing a deep energy retrofit of a Vermont home and installing two ComfoAir 70 energy recovery ventilators.

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Topics: Zehnder Projects

How to Choose an Energy Recovery Ventilator

Posted by Zehnder America

Dec 28, 2016 3:50:35 PM

As concern about indoor air quality increases, many homeowners and building professionals are seeking energy-efficient solutions. Proper ventilation that brings fresh air into the home while exhausting stale or contaminated air can significantly boost indoor air quality. Energy recovery ventilators are an important feature of many effective ventilation strategies, but their features vary widely between units.

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Topics: ERV

New Online Course Offering

Posted by Zehnder America

Nov 6, 2016 2:46:29 PM

In recent decades, homes and buildings have become progressively more airtight to achieve cost savings, energy efficiency, and home-owner comfort. As a result, a variety of airborne pollutants are reaching high levels inside many of these buildings, sometimes creating health issues or triggering allergies and asthma symptoms for building occupants.

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Topics: Online Education

Steeple Chase Builders Retrofit: Homeowners Impact

Posted by Sarah Lozanova

Oct 31, 2016 3:03:00 PM

This is the last article in a three-part series on retrofitting a New Hampshire home with a Zehnder Energy Recovery Ventilation system to provide a solution for the poor air quality in the home. Click here to view the first post on how health ailments put the spotlight on indoor air quality issues and here to read about the process of retrofitting the home. In this article we explore the impact of the ventilation system on promoting health.

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Topics: IAQ

Award Won for Alta Lake Passive House

Posted by Zehnder America

Oct 29, 2016 3:46:20 PM

Innovative and distinguished projects from across the globe were recently celebrated at the 2016 Wood Design Awards in British Columbia, Canada. The 12th annual event showcased projects from single-family homes to large public buildings, demonstrating what is possible with wood and world-class design expertise. The impressive Alta Lake Passive House in Whistler, British Columbia won the Environmental Performance Award for demonstrating a significant contribution to boosting overall environmental performance of a building.

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Topics: IAQ

Retrofitting a New Hampshire Cape Home With Energy Recovery Ventilation

Posted by Zehnder America

Oct 21, 2016 1:05:00 PM

This is the second of a two-part series about retrofitting a home with a Zehnder Energy Recovery Ventilation system. Click here to read the first post in the series, which focuses on the importance of home indoor air quality for health.

Steeplechase Builders recently retrofitted an expanded cape home in southern New Hampshire for a couple with a Zehnder Energy Recovery Ventilation (ERV) system. The house had been air sealed to reduce leakage and save energy within the last couple years, but lack of adequate ventilation caused indoor air quality and mold growth. Zehnder America provided design assistance, installation training, and technical support to Steeplechase Builders throughout the project.

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Topics: IAQ

2 Ways to Promote Indoor Air Quality When Installing Spray Foam

Posted by Zehnder America

Oct 20, 2016 7:17:48 AM

In a growing trend, many homeowners are having their homes insulated using spray foam insulation. Spray polyurethane foam is being widely used across the United States to create an air barrier. Although this can greatly improve the energy performance of a home, it creates indoor air quality issues in some homes because stale air gets stuck inside of the home promoting the chance for mold to grow or pollutants to circulate.

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Topics: IAQ