The National Roofing Contractors Association updated its EnergyWise Roof Calculator.
The online tool now includes information from the 2015 version of the International Code Council’s International Green Construction Code and the 2013 version of ASHRAE Standard 90.1 (“Energy Standard for Buildings Except Low-Rise Residential Buildings”). The tool offers the following benefits:
- Judges compliances of the roof in the context of the codes and regulations for a given municipality
- Estimates the R-value for the materials and insulation selected
- Assesses the thermal gradient of the roof
- Provides a rough estimate of heating and cooling costs based solely on the roof infrastructure
According to the NRCA, about 3,700 contractors and others have registered to use the calculator.
Related Stories
75 Top Building Products | Dec 12, 2019
Top Building Envelope Products for 2019
Sto's beetle-inspired exterior coating and Dörken Systems' UV-resistant vapor-permeable barrier are among the 28 new building envelope products to make Building Design+Construction's 2019 101 Top Products report.
Codes and Standards | Nov 16, 2017
White roofing isn’t always the best choice
Adverse effects include heat reflection onto nearby walls.
Roofing | Mar 29, 2017
Product roundup: 12 cutting-edge roofing solutions
Dynatsy Shingles from IKO, CR G cap sheets from Johns Manville, and GenFlex EPDM Adhesive from GenFlex Roofing Systems are three of the 12 products in BD+C's March Product Roundup.
Roofing Technology | Sep 1, 2016
Tesla’s Musk eyes solar shingles as next venture
New products will need to overcome problems of aesthetics and efficiency that have plagued past entrants into this field.
Sponsored | Energy Efficiency | Jul 27, 2016
Metal Roofs Have Solar Advantage
A large roof can become a resource that saves significant money on energy consumption and helps reduce emissions of CO2 and it turns out metal roofs make excellent hosts for solar panels.
Sponsored | Energy Efficient Roofing | Jul 21, 2016
Economical, energy-efficient roof assemblies
Not all roof and ceiling assemblies are created equal, especially when it comes to energy performance.
Sponsored | Coatings | Sep 25, 2015
Comfort and energy efficiency with cool metal roofs
Energy-efficient metal roofs, with cool coatings are at the forefront of innovation, helping to increase the efficiency of the building envelope.
Sponsored | Energy Efficient Roofing | Feb 12, 2015
How does airflow under a metal roof further enhance energy savings?
Metal roof coatings with solar reflectance can help building owners save substantially in annual cooling costs. Research has confirmed that creating an air space under a metal roofing system will increase energy savings during both summer and winter months.
| Nov 17, 2014
Resolving practical problems in roofing retrofits and renovations [AIA course]
This course, worth 1.0 AIA HSW learning unit, provides expert advice on how to make a roof last as long as possible, and how to properly retrofit or reroof when the roof has run its course.
| Jul 17, 2014
A harmful trade-off many U.S. green buildings make
The Urban Green Council addresses a concern that many "green" buildings in the U.S. have: poor insulation.