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New Hampshire State Building Energy Code Update

Posted By Administration, Tuesday, March 31, 2020
Updated: Friday, March 13, 2020

The applicable building energy code that determines the minimum insulation requirements for commercial roofs with insulation entirely above the deck in New Hampshire is the State Building Code (based on the 2015 International Energy Conservation Code with state-specific amendments). The minimum insulation requirements apply both to new construction and roof replacements on existing buildings.

The minimum requirement for insulation installed entirely above the roof deck is R-30 for all climate zones. This code became effective on September 15, 2019.

 Sample roof assembly diagrams and additional information can be found in PIMA’s New Hampshire code fact sheet.

Tags:  building codes  building envelope  buildings  Efficiency  energy codes  energy efficiency 

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Michigan State Building Energy Code Update

Posted By Administration, Thursday, March 26, 2020
Updated: Friday, March 13, 2020

The applicable building energy code that determines the minimum insulation requirements for commercial roofs with insulation entirely above the deck in Michigan is the Commercial Michigan Energy Code (based on ASHRAE 90.1.-2013 with state-specific amendments). The minimum insulation requirements apply both to new construction and roof replacements on existing buildings.

The minimum requirement for insulation installed entirely above the roof deck is R-30 for climate zones 5 and 6, and R-35 for climate zone 7. This code became effective on September 20, 2017.

 Sample roof assembly diagrams and additional information can be found in PIMA’s Michigan code fact sheet.

Tags:  building codes  building envelope  buildings  Efficiency  energy codes  energy efficiency 

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Illinois State Building Energy Code Update

Posted By Administration, Tuesday, March 24, 2020
Updated: Friday, March 13, 2020
The applicable building energy code that determines the minimum insulation requirements for commercial roofs with insulation entirely above the deck in Illinois is the 2018 Illinois Energy Conservation Code (based on the 2018 International Energy Conservation Code with state-specific amendments). The minimum insulation requirements apply both to new construction and roof replacements on existing buildings.

The minimum requirement for insulation installed entirely above the roof deck is R-30 for all climate zones. This code is effective July 1, 2019.

 Sample roof assembly diagrams and additional information can be found in PIMA’s Illinois code fact sheet.

Tags:  building codes  building envelope  buildings  energy codes  energy efficiency  Polyiso 

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Georgia State Building Energy Code Update

Posted By Administration, Thursday, March 19, 2020
Updated: Friday, March 13, 2020

The applicable building energy code that determines the minimum insulation requirements for commercial roofs with insulation entirely above the deck in Georgia is the 2020 Georgia State Minimum Standard Energy Code (based on the 2015 IECC with state specific amendments). The minimum insulation requirements apply both to new construction and roof replacements on existing buildings.

The minimum requirement for insulation installed entirely above the roof deck is R-25 for climate zones 2 and 3, and R-30 for climate zone 4. This code became effective in January 1, 2020.

 Sample roof assembly diagrams and additional information can be found in PIMA’s Georgia code fact sheet.

Tags:  building codes  building envelope  buildings  energy codes  energy efficiency 

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Florida ​State Building Energy Code Update

Posted By Administration, Tuesday, March 17, 2020
Updated: Thursday, March 12, 2020

PIMA’s State Energy Code Fact Sheets provide state-by-state details about the minimum insulation requirements for low-slope commercial roofing in both new and existing buildings. Each fact sheet includes state-specific insulation requirements, code-compliant assembly examples, and links to helpful resources. PIMA monitors state codes regularly to provide the most up to date information possible.

The applicable building energy code that determines the minimum insulation requirements for commercial roofs with insulation entirely above the deck in Florida is the 2017 6th Edition Florida Building Code, Energy Conservation (based on the 2015 International Energy Conservation Code with state specific amendments). The minimum insulation requirements apply both to new construction and roof replacements on existing buildings.

The minimum requirement for insulation installed entirely above the roof deck is R-20 for climate zone 1 and R-25 for climate zone 2. This code became effective on December 31, 2017.

Sample roof assembly diagrams and additional information can be found in PIMA’s Florida code fact sheet.

Tags:  building codes  building envelope  Efficiency  energy codes  energy efficiency 

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New, Stronger Energy Codes for District of Columbia and New York City

Posted By Nathan Pobre, Thursday, March 12, 2020
Updated: Thursday, March 12, 2020

Both New York City and the District of Columbia are set to enact new building energy codes that contain prescriptive envelope requirements that are more stringent than the 2018 International Energy Conservation Code (IECC). The new minimums also increase the jurisdictions’ previous requirements, which were R-25 in D.C. and R-30 in NYC for insulation installed entirely above the roof deck.

The District of Columbia’s new energy code, currently before the City Council for final review, is expected to pass in early April 2020. D.C.’s new code also includes an optional appendix (Appendix Z) for net-zero construction that is voluntary now, but will be mandatory for new commercial buildings in 2026. The new code will take effect on April 9, 2020, but projects that have a signed design contract, a permit application pending, or an approved permit prior to this date can still use the previous code.

The New York City Council  recently approved a new energy code that includes most of the requirements under New York’s Stretch Energy Code (published July 2019). The Mayor is expected to sign the ordinance soon and it will take immediate effect on May 12, 2020.

Below is a table comparing four prescriptive envelope requirements for the new codes in D.C. and NYC as well as the model requirements in the 2018 IECC (Climate Zone 4).  

 

Washington, D.C.

NYC

2018 IECC

Commercial

Roofs: Insulation Entirely Above Deck

R-33/U-0.028

R-33/U-0.0.30

R-30/U-0.032

Steel Framed Walls

R-15+R-8/U-0.058

R13+R-8.5/U-0.061

R-13+R-7.5/U-0.064

Wood Framed Walls

R-15+R-4.1/U-0.058

R-13+R-4.5 or

R-19+R-1.5/U-0.061

R-13+R-3.8 or

R-20/U-0.064

Residential

Wood Framed Walls

R-19+R-5 or

R-13+R-10/U-0.045

R-20+5 or

R-13+10/U-0.045

R-20 or

R-13+5/U-0.060

 

 

 

Tags:  building envelope  Efficiency  energy codes 

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Bellingham, Washington Home is Zero Energy, Zero Water and Zero Sewer

Posted By Administration, Tuesday, January 28, 2020
Updated: Tuesday, January 28, 2020
Located in the Birchwood neighborhood of Bellingham, Washington, lies the newly built Birch Home. The Birch Home is zero energy, zero water and zero sewer. Architect Dan Welch and builder Chris Tretwold of Tretwold Construction built the home to the high energy performance standards of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) program and the home is now where Dan Welch and his wife reside. Welch had designed or consulted on several high-performance homes prior to this project, but this was the first home he actually built. Through careful thought, research and time, Welch and Tretwold were able to achieve this triple play in performance.

In order to make all aspects of The Birch home “zero,” different products and systems were used to ensure the building was as high performing as possible. Solar panels were used to produce energy while rainwater provides all the home’s water supply. Additionally, the home has about nine inches of polyiso insulation on the roof for maximum energy efficiency.

Learn more about this project here.

Tags:  building envelope  energy efficiency  resiliency 

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IKO Roofing Products Protect Impressive Gondola Project in British Columbia

Posted By Administration, Wednesday, December 4, 2019
Updated: Monday, December 2, 2019

The Sea to Sky Gondola became an instant landmark destination in Squamish, British Columbia when it opened in May 2014. Under construction for more than a year, the $22-million project now provides year-round access to hiking trails, interpretive walks, panoramic views and a 9,000-square foot Summit Lodge where guests can enjoy self-serve dining and local Squamish food and beverage.

The roof system was engineered to withstand the demands of all-weather exposure with minimal maintenance requirements. With construction slated to take place during the winter of 2013/2014, the building’s location presented some interesting challenges. Its only access road was a steep, single-lane logging highway, so all of the construction materials had to be shipped to a base station at the bottom of the mountain on a flat bed and then pulled uphill by heavy equipment to reach the access site.

With this in mind, designers specified products that would deliver the most protection at the lowest weight and bulk. Polyiso insulation from IKO was chosen to provide outstanding thermal performance for the building’s roof system. Given the challenging installation environment, roofing contractor Garibaldi Roofing was grateful that  superior materials such as Polyiso insulation were light enough that sheets could be carried by a single installer.

Learn more about this project here.

Download File (TIF)

Tags:  buildings  insulation  Polyiso  roofing 

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The Kendeda Building for Innovative Sustainable Design at Georgia Tech Includes Polyiso

Posted By Administration, Monday, December 2, 2019
Updated: Monday, December 2, 2019

The Kendeda Building for Innovative Sustainable Design (Kendeda Building) at the Georgia Institute of Technology (Georgia Tech) was dedicated on October 24, 2019. Built in partnership with the Kendeda Fund, the 46,800-square-foot building is the first academic and research building in the Southeast to pursue the Living Building Challenge – the world’s most ambitious green building program.

The Kendeda Building will need to meet 20 “Imperatives” – which are specific performance requirements – after 12 consecutive months of operation. Certification is anticipated in 2021, and the project is also pursuing the U.S. Green Building Council’s LEED certification at the Platinum level.

The project team used a three-inch base layer of non-halogenated GAF Polyiso roof insulation to cover nearly the entire roof and approximately 130 squares of material GAF TPO. This GAF polyiso insulation does not contain halogenated flame-retardant chemicals and offers:

  • A higher R-value per inch compared to non-polyiso types of insulation of equivalent thickness;
  • High moisture resistance;
  • Improved fire resistance;
  • Are lightweight for easy handling and installation;
  • Have zero ozone depletion potential and negligible global warming potential, and;
  • Manufactured with EPA-compliant blowing agents containing no CFCs or HCFs. 

The Kendeda Building will use just one-third the energy of a comparable building, will generate more energy than it uses from solar panels on its roof and will capture and treat rainwater for all purposes, including drinking. This is one of the reasons the project team chose to integrate tapered Polyiso roof insulation in addition to the flat material to help direct water into the capture systems.

The building includes classrooms, laboratories, offices, an auditorium, a student commons, and a roof garden with an apiary. The project offers unique learning opportunities for designers, builders, and building operators, such as how to tackle the region’s humidity and potential droughts.

The Living Building was funded through a $30 million grant from The Kendeda Fund, one of the leading philanthropic investors in civic and environmental programs in the Atlanta area with a commitment to ecological and social causes.

Tags:  buildings  energy efficiency  insulation  LEED  Polyiso  r-value 

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Energy Savings Go Through the Roof!

Posted By Administration, Monday, November 11, 2019
Updated: Monday, November 11, 2019
When it’s time to replace a roof, most owners choose roofing materials based on performance qualities like longevity and weather resistance. But a well-designed roof can also shine in another performance area: energy efficiency.

Energy efficiency is important to many owners with concerns ranging from climate impacts like building carbon footprints to the costs and reliability of energy resources. Since approximately 25 percent of heat loss in an uninsulated building occurs through the roof, choosing materials that add insulative power can add significant energy savings. For commercial and low-slope roof applications, adding layers of rigid foam insulation to the roofing system can deliver exceptional R-value without a lot of bulk.

An article last month from the Energy News Network details initiatives in Warren, Minnesota and Arnsberg, Germany to use thermal imaging in evaluating building heat loss to help owners determine the best energy efficiency opportunities.

The program was conceived after municipal leaders from Warren and Arnsberg met through the Climate-Smart Municipalities program sponsored by the University of Minnesota’s Institute on the Environment which paired five cities in Minnesota with similar cities in Germany. Arnsberg had been using remote-piloted aircraft to collect thermal images of building heat loss. Leaders in Warren decided to try using drones to get more detailed information.

Piggybacking off each other’s ideas, the two cities are innovating the practical applications of these thermal images in directing energy efficiency efforts to the places that will have the greatest impact. Their research provides further evidence that reroofing with energy-efficient materials can decrease building heat loss and lead to reduced energy consumption.

Tags:  building envelope  buildings  continuous insulation  Efficiency  energy efficiency  insulation  Polyiso 

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