Category Archives: Green Building

Weeks Remain to Secure Your 30 Percent Investment Tax Credit

Weeks Remain to Secure Your 30 Percent Investment Tax Credit

Originally published on October 23, 2019 by BNP Media through the Building Enclosure Blog. It is regarded as one of the most important federal policy mechanisms to support the growth of renewable energy in the United States. The Investment Tax Credit (ITC) was established by the Energy Policy Act of 2005 and has become a critical component of making on-site renewable energy systems economic for building projects. The ITC is currently a 30% federal tax credit claimed against the tax liability of….

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The Basic Forms of Heat Transfer

The Basic Forms of Heat Transfer

Originally published on September 6, 2019 by BNP Media through the Building Enclosure Blog. Heat always flows from substances of a warmer temperature to substances of a cooler temperature. Heat (thermal energy) will be exchanged in an environment until a common temperature (equilibrium) is achieved. This equalizing of temperature in an environment is caused by a combination of three basic types of heat transfer: conduction, radiation, and convection. Conduction Conduction is the transfer of vibrating energy between adjacent molecule (Fig. 1)…..

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Revisiting the Insulating Effects of Green Roofs

Revisiting the Insulating Effects of Green Roofs

The Simon Skjodt International Orangutan Center, which opened at the Indianapolis Zoo in May 2014 features an 8,000-square foot extensive green roof. Architect: Browning Day Mullins Dierdorf. Photograph by Daniel Overbey. Originally published on June 12, 2019 by BNP Media through the Building Enclosure Blog. One of the consequences of blogging is the peer review of the internet. I am always happy to take comments. I value the dialogue because of the learning involved and it reaffirms that what I….

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The Moisture Threat of Infiltration to the Building Envelope

The Moisture Threat of Infiltration to the Building Envelope

Originally published on May 1, 2019 by BNP Media through the Building Enclosure Blog. The ways in which liquid and vapor move through our building envelopes are complex, and even today not completely understood; but the fact that lots of water can (and does) move through porous building materials is a phenomenon that rules over so much of the way we build. Two major modes of moisture travel – gravity and capillary action – are related to bulk water management, which is….

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Clarifying Slab-on-Grade Insulation in ASHRAE Standard 90.1

Clarifying Slab-on-Grade Insulation in ASHRAE Standard 90.1

Originally published on April 8, 2019 by BNP Media through the Building Enclosure Blog. Slab-on-grade insulation. It seems like it should not be so complicated. Yet, slab-on-grade insulation can be arranged in a number of configurations, each with pros and cons. One arrangement may be more conducive to maintaining a continuous thermal barrier from a wall down through its foundation but it allows unsightly exposure along the building perimeter. Another configuration may better conceal the insulation yet it allows an….

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Is Integrated Project Delivery Dead… or Just Reborn?

Is Integrated Project Delivery Dead… or Just Reborn?

Originally published on March 19, 2019 by BNP Media through the Building Enclosure Blog. It was supposed to usher in the next generation of high-performance projects – where silos would be destroyed, building information modeling (BIM) would be harnessed, and both risk and reward would be shared across all major stakeholders. Integrated Project Delivery (IPD) has been touted for its many potential attributes. As a collaborative project delivery method, IPD utilizes the talents and insights of all project participants through all phases….

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Gauging the Impact of Exterior Shading using the Projection Factor

Gauging the Impact of Exterior Shading using the Projection Factor

Originally published on February 15, 2019 by BNP Media through the Building Enclosure Blog. The solar heat gain coefficient (SHGC) is a ratio that defines the amount of solar energy that reaches a glazing assembly (including both the glass and frame) with the amount that gets through to the inside. It represents the ability of a glazing assembly to resist heat gain from direct solar radiation. A high SHGC indicates poor resistance. That means most of the solar radiation arriving to the window or….

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The Center Awarded SITES Certification for Achievement in Landscape Sustainability

The Center Awarded SITES Certification for Achievement in Landscape Sustainability

Project earns first SITES certification in the State of Indiana INDIANAPOLIS, IN – February 12, 2019 – The Center, The Heritage Group’s catalyst for growth, was awarded certification under the Sustainable SITES Initiative (SITES) for landscape sustainability. Designed by Browning Day Mullins Dierdorf, The Center is the first SITES certified project in Indiana. Owned and administered by Green Business Certification Inc. (GBCI), SITES is the most comprehensive program for designing, developing, and maintaining sustainable landscapes. The Center was designed to….

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Why the 2018 IgCC is Critical to the Future of Green Building

Why the 2018 IgCC is Critical to the Future of Green Building

Originally published on January 23, 2019 by BNP Media through the Building Enclosure Blog. It has been nearly half a decade since the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), the American Institute of Architects (AIA), the International Code Council (ICC); the Illuminating Engineering Society (IES); and the U.S. Green Building Council (USGBC) signed a memorandum to better align green building goals through ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1, the International Green Construction Code (IgCC), and the LEED certification system. For years, these groups had been working on their owner green building….

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Blue Roofs are Essential to Achieve Zero Rainwater Overflow

Blue Roofs are Essential to Achieve Zero Rainwater Overflow

Originally published on November 30, 2018 by BNP Media through the Building Enclosure Blog. In their latest Infrastructure Report Card, the American Society of Civil Engineers (ASCE) gave our domestic wastewater infrastructure and average grade of D+ citing 772 communities in the US in which wastewater and stormwater drain into the same treatment system. These combined sewer systems can experience capacity issues following heavy rain events, resulting in overflows containing a combination of stormwater with untreated human and industrial waste, toxic substances, debris, and other….

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