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  • November 14, 2018

    In 2015, the International Energy Conservation Code (IECC) made a new change regarding the thermal resistance requirements for duct insulations in unconditioned spaces. Specifically, the code called for ducts in unconditioned spaces in climate zones 5-8 to be insulated with R-12 insulation.1 (Please see the complete code for all details and any exceptions.) In terms of insulation, designers can expect that the higher the R-value, the greater the insulating power of the insulation.

  • November 14, 2018

    Johns Manville’s XSPECT® ISOfoam APF board consists of a uniform closed-cell polyisocyanurate foam core bonded on each side with a foil facer. Polyiso provides one of the highest R-values per inch of any rigid insulation (R-6.0 at 1 inch). R means resistant to heat flow. JM XSPECT ISOfoam APF is produced with an EPA-compliant hydrocarbon-based blowing agent that has zero Ozone Depletion Potential (ODP) and virtually no Global Warming Potential (GWP); it also meets both CFC- and HCFC-free specification requirements.

  • November 14, 2018

    When it comes to commercial air conditioning, the great workhorses are rooftop units. People are accustomed to seeing rows of air conditioner cabinets along the top of office and retail buildings. Some commercial buildings still use “split” systems that are similar to the ones seen in residential housing, while restaurants and bars often use ductless heat pumps that send conditioned air wall-mounted blowers that are connected to an outdoor condenser. But the rooftop unit, because of its space saving quality and ease of service, continues to be the most popular for business use.

  • November 14, 2018

    This presentation by Eric Makela and Howard Wiig takes a detailed look at the changes in the 2015 IECC. They cover the financial impact, energy savings, and steps that contractors and engineers need to implement to adhere to code.

    Click here to download the presentation.

  • July 11, 2018

    As we see a cultural shift toward more energy-efficient and sustainable living, building compliance codes like the International Energy Conservation Code (IECC) are being adopted by more and more local jurisdictions. The IECC is a prescriptive code that has established regulations for energy efficient buildings. The code is designed to help promote the use of new materials, technology, and energy efficient designs.

  • July 11, 2018

    The International Code Council has put together a series of short videos to help you get a full view of the changes they’ve made to the 2015 IECC. Click here to see the complete list. 

  • July 11, 2018

    Corporate office space is undergoing a rapid transformation. Traditionally, these spaces included a ring of private offices around the perimeter of the space, with cubical farms occupying the center. Today, companies are moving to more of an open office plan, which requires different considerations for HVAC system design.

  • July 11, 2018

    Companies looking for insulation replacement solutions for commercial buildings should keep in mind that there are many wrong ways to implement these projects. Mistakes made in getting commercial installation in place can destroy energy efficiency initiatives and cost businesses a lot of money. They can lead to non-compliance with industry standards, and raise risks.

    Here are some of the things that a professional HVAC company takes care to avoid during commercial insulation repair projects for a business client.

  • May 8, 2018

    Rooftop ducts pose a unique set of variables that can influence insulation material selection. The simple fact that they are outdoors sets a different bar for performance requirements than typical indoor HVAC applications. As a result, installers and specifiers frequently look for specific material features and performance benefits when they select a material for rooftop ducts.

  • May 8, 2018

    Tight design timelines can compromise the design team's ability to consider factors like life cycle cost, distribution efficiency, access, maintainability, and system integration.