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RESNET Marks Milestone of Over 2 Million HERS Rated Homes

Posted by Green Builder Staff

Oct 3, 2017 4:07:59 PM

The Residential Energy Services Network (RESNET) has announced that over 2 million homes in the United States have now been rated with a HERS Index Score, measuring a home’s energy efficiency.

Like the miles-per-gallon calculation for cars, a HERS Index Score allows for a uniform estimate of a home’s energy consumption and provides buyers/owners with a reference point for how energy efficient it is as compared to other homes. Heating, cooling, and water heating constitute the largest cost of homeownership outside of the mortgage loan, and the HERS Index Score can help homeowners outline the energy features of the home and the expected cost of utility bills.

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Research: Adding Graphene to Concrete Produces Super-Strong Mix That Could Assist in Storm Resilience

Posted by Green Builder Staff

Sep 27, 2017 10:50:54 AM

The nanotechnology shows real promise for resisting nature's increasingly powerful weather events.

Although graphene's unsurpassed strength as a material was made clear back in the 20th century, the construction industry still relies on traditional techniques and products for the most part. Factories stand ready to launch wholesale production of graphene concrete and other building materials, but the market remains largely uninformed of their potential. If demand has yet to take off, perhaps it is because graphene still poses as many questions as answers. Researchers at NanoGraphene, Inc. finding themselves in the eye of Hurricane Irma, considered the question of how such enormous destruction could have been avoided.

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Video: 12 Key Factors in Creating a Net Zero Home

Posted by Green Builder Staff

Sep 26, 2017 9:53:33 AM

Clifton View Homes and Zero Energy Plans founder/CEO Ted Clifton walks us through the twelves steps of building planning and construction that have helped him to design and build the most energy efficient homes in the world. Video shot and edited by Kyle Porter, http://porterworks.com/

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Longevity vs. Recycled Materials: Is One Better?

Posted by Megan Wild, Guest Columnist

Sep 25, 2017 4:38:13 PM

Sometimes, you can't get the best of both worlds. Here's what to do when choosing between long-lasting & recycled materials.

As a green builder, contractor or architect, you may have found yourself in a conundrum when trying to recreate the advantages of conventional building materials with recycled, greener materials. While there are now far more options for recycled building materials, helping a client balance between the longevity of a material and the material's recyclability can be a difficult task. But it doesn't have to be! In the following two sections, we'll discuss several types of materials – some that are known for lasting a long time and some that are known for being recyclable and environmentally friendly. Keep reading for some inspiration on how to better inform your client and help them decide between longevity and recyclability.

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Home Run vs Trunk & Branch Duct Layouts. Which is Better?

Posted by Ian Hammond, Guest Columnist

Sep 20, 2017 12:06:50 PM

Ductwork is a key component to a home ventilation system. The best layout method will vary, due to several complex variables.

Efficient and effective home ventilation systems require a significant amount of planning and designing, particularly in high-performance new construction. Good ductwork design and layout, whether it’s ‘trunk and branch’ or ‘home run’, includes an understanding of balanced air pressure, the roles that friction and turbulence play in affecting air flow through the ductwork system, and the impact they have on the performance of a ventilation system.

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A Key in Green Building: Solving Concrete’s Stress Problem

Posted by Megan Wild, Guest Columnist

Aug 18, 2017 3:44:41 PM

A key to enhancing a concrete building's longevity is reducing building stress. Here's how builders are doing that.

Both construction professionals and the public know how ubiquitous concrete is in modern — and even not so modern — construction. Concrete is a durable material, indeed, but it’s also an increasingly green one. At a point in time where every industry needs to get a little more serious about sustainability, concrete has successfully cemented its place as a vital construction staple, and one with increasingly attractive “green” credentials.

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Research: New Wood Burning Stoves May Do as Much Harm as Good

Posted by Green Builder Staff

Aug 9, 2017 3:39:42 PM

Researchers in North Carolina found that while advanced stoves with forced drafts do produce less health-damaging pollution, the type of particles they emit actually make global warming worse.

A recent study from North Carolina State University finds that advanced wood-burning stoves designed for use in the developing world can reduce air pollution more than anticipated, because gaseous emissions from traditional wood stoves form more particulate matter in the atmosphere than researchers previously thought.

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Bosch Tackles New Silica Standard Head-On With HEPA-Ready Vacuum System

Posted by Green Builder Staff

Jul 21, 2017 9:45:25 AM

The new portable shop-vac style unit includes double filtration to maximize dust containment.

We tested this new vacuum product on some cementitious materials, including crumbling, wet cement dust from basement walls, rusty drywall screws and clips, and mixed fine and coarse debris from construction.

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Video: Builder Plans To Test Airborne Sealing System on 100 Net-Zero Homes

Posted by Matt Power, Editor-In-Chief

Jul 20, 2017 10:01:47 AM

At the heart of Mandalay Homes' "disruptive" innovation is a new product that seals the smallest leaks, greatly reducing air infiltration.


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Cool and Quiet: Can you have both in a multi-family project?

Posted by Green Builder Staff

Jul 17, 2017 11:37:20 AM

At a landmark Rhode Island mixed-use project, an energy-efficient HVAC system means noise is no problem.

ORIGINALLY BUILT IN 1872, the Foundry has a rich history. Once the manufacturing campus of industrial powerhouse Brown & Sharpe, the 13 brick buildings located on 26 acres at the edge of downtown Providence, R.I., have been meticulously restored into a mixed-use complex that bridges old and new.

In the middle of the sprawling complex is the Sharpe Building at the Foundry, which served as a mill during the building’s manufacturing years. The goal for the renovation of the 157,500-square-foot, six-story building was to develop 196 loft-style luxury residences. But because it was placed on the National Register of Historic Places in 2003, the Sharpe Building required a renovation that upgraded functionality of the building while maintaining its historic design.

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