The Guide to Cladding Attachment Solutions for Exterior-Insulated Commercials Walls

Posted on February 13, 2019

As energy code requirements  become more stringent, greater attention is being paid to the design of thermally efficient cladding attachment solutions. The Guide to Cladding Attachment Solutions for Exterior-Insulated Commercial Walls allow readers to determine which cladding attachment systems best suit the needs of their project. In 2018, RDH released the 4th edition of the guide […]

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A Step Toward Net-Zero: How British Columbia is Rolling Out New Building Energy Efficiency Requirements

Posted on September 1, 2017

Net-zero is typically defined as a building that produces as much energy as it consumes on an annual basis. However, this definition can vary by project and is subject to more questions: Is renewable energy production on-site or off-site? How does it consider efficiency versus renewables? Does net-zero hinge on the building’s size, location, and […]

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International Passive House Conference 2017 | Highlights from the RDH Team

Posted on June 2, 2017

Every year, the Passive House community comes from all over the world to gather at the International Passive House Conference. Although the Passive House movement originally started out as a construction concept for residential buildings in Central Europe (ref. Passipedia “Basics”), the standard has spread to all parts of the globe. This year’s theme “Passive […]

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Why Building Airtightness is Important

Posted on August 5, 2016

In the simplest terms, building airtightness refers to a building’s resistance to air leakage—air flowing both in and out of the building—through areas of the building enclosure not intended to allow air flow. The idea of air entering or exiting a building may not seem like cause for concern, but in reality, airtightness is an […]

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Where Energy Models Differ From Reality: Lessons Learned Through Measurement & Verification of High-Performance Buildings

Posted on April 15, 2016

Energy-efficient design in buildings is helping reduce the carbon footprint of our communities and manage future energy costs in North America. A key element in achieving energy efficiency is to measure and verify energy savings and emissions reductions, ensuring that low energy buildings continue to perform: enter RDH. In 2013 RDH was retained to undertake […]

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Real, Measurable Savings: Practical Tips for Ensuring Building Performance & Energy Efficiency

Posted on April 22, 2016

Energy-efficient design in buildings is helping reduce the carbon footprint of our communities and manage future energy costs in North America. A key element in achieving energy efficiency is to measure and verify energy savings and emissions reductions, ensuring that low energy buildings continue to perform: enter RDH. In 2013 RDH was retained to undertake […]

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Show Me the Numbers: Measured Energy Consumption of High-Performance Buildings

Posted on April 1, 2016

Energy-efficient design in new and existing buildings is helping North Americans reduce the carbon footprint of our communities and cut energy bills. A key element in achieving energy efficiency is to measure and verify energy savings and emissions reductions, ensuring that high-performance buildings continue to perform: enter RDH. In 2013 RDH was retained by an […]

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Calibration and Comparison: Measured Energy Savings of High-Performance Buildings

Posted on April 8, 2016

Energy-efficient design in new and existing buildings is helping North Americans reduce the carbon footprint of our communities and cut energy bills. A key element in achieving energy efficiency is to measure and verify energy savings and emissions reductions, ensuring that high-performance buildings continue to perform: enter RDH. In 2013 RDH was retained by an […]

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Meet the Researcher: Aaron Grin

Posted on March 4, 2016

At RDH we believe there is an important relationship between the work we do in the field and the work we do in the lab. The two go hand-in-hand, providing us with the experience and expertise to not only deliver outstanding results and garner a reputation for quality, but to be leaders in the field […]

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Leading the Way to Tall Wood

Posted on February 17, 2016

Changes to the Building Code In 2009, amendments to the BC Building Code increased the maximum height of wood-frame residential construction from 4 to 6 stories. In 2015, the Ontario Building Code underwent similar revisions allowing for the construction of 6-story wood-frame residential and office buildings, with stairwells of non-combustible materials and combustion-resistant roofs. South […]

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2016 Masonry Systems Guide: Northwest Edition

Posted on January 15, 2016

On January 21, 2016, RDH’s Michael Aoki-Kramer, Bailey Brown, and John Straube attended the official launch of the 2016 Masonry Systems Guide: Northwest Edition in Seattle, Washington, at the Masonry Institute of Washington’s 2016 Masonry Symposium. There, the team of experts formally presented the guide and discussed the included assemblies and information. To create the guide, RDH […]

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A Breath of Fresh Air on the Topic of Indoor Air Quality

Posted on September 4, 2015

What are the effects of poor air quality in a residential building? Does your building often feel stuffy and have bad odors? Do your windows experience condensation during the winter months? These issues are often the result of poor indoor air quality—a common problem in many multi-unit residential buildings (MURBs). Proper ventilation and airflow throughout […]

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Re-Thinking Ventilated Attics: How to Stop Mold Growth in Coastal Climates

Posted on April 7, 2015

Mold growth on the underside of sheathing has become an epidemic in the Pacific Northwest. So what’s the solution?

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Developing a Roadmap to Low-Carbon Buildings

Posted on December 10, 2014

How can governments and consumer associations transform the market so that we can achieve deep reductions in greenhouse gases from buildings, while making buildings more affordable and creating thousands of jobs?  

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Osmotic Blistering: The Bane of Liquid Applied Waterproofing Membranes

Posted on August 13, 2014

Over a decade ago, while performing warranty reviews and condition assessments, RDH began to find water-filled blisters under many new cold-applied membranes.

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