LEEDing the Way - USA
Kroon Hall Case Study
| Project Name: | Yale School of Forestry & Environmental Studies, Kroon Hall |  |
| Project Size: | 65,000 Sq Ft. | |
| Location: | New Haven, CT | |
| Building Use: | Educational (Offices, Classrooms, Auditorium) | |
| Project Architect: | Centerbrook & Hopkins Architects | |
| Developer: | Yale University | |
| Construction Manager: | Turner Construction Company | |
| Roxul Product Used: | RockBoard 60 & 4” CavityRock | |
| Application Details: | Roof & Cavity Wall | |
| Reasons for Roxul Use: | Thermal & Non-Combustibility | |
| Project Completion: | Early 2009 |
LEED Certification Level Achieved: Platinum
Roxul CavityRock® is a board insulation designed for cavity wall applications and Roxul RockBoard™ is a durable board insulation that is ideal for metal roofs requiring snow load. The environmental and performance profile of these Roxul products made them the
natural choice for Centerbrook and Hopkins Architects to specify when they designed the building envelope of Kroon Hall. The innovative structure was so unique that Turner Construction Company actually built a prototype of a small section of the building at
the construction site in order to test the sequencing of construction and how the different elements fit together. The thermal properties of CavityRock and RockBoard along with their recycled content of basalt rock and steel slag contributed to the project earning Platinum
level LEED certification while their fire resistance enhanced the projects safety.
Take a look and see how Roxul products can boost your new construction project’s LEED points total – up to 33 additional points could be earned!**
LEED Points Summary - USA
| LEED Category & Credits | Roxul Contribution | Possible Points |
| Energy & Atmosphere | ||
| EA Credit 1: Optimize Energy Performance (in addition to the prerequisites standard for reducing excessive energy use) | Our rock and slag stone wool has higher R-values for superior thermal properties and energy efficiency. Overall contribution depends upon R-value used. Points depend upon achieving one of four compliance path options, as well as compliance with ASHRAE/ IESNA Standard 90.1-2004 and local energy codes. | Up to 19 – points depending upon energy saved and option chosen |
| Materials & Resources | ||
| MR Credit 2.1: Construction Waste Management Divert 50% from Disposal | Roxul products are dimensionally stable and sag resistant. When removed undamaged, our products may be reused and recycled for other projects. Roxul products are size optimized for fit, enhancing performance and limiting construction waste | 1 Point |
| MR Credit 2.2: Construction Waste Management Divert 75% from Disposal | Plus 1 Point (in addition to MR Credit 2.1) | |
| MR Credit 4.1: Recycled Content 10% | Roxul stone wool consists of basalt rock and recycled steel slag. Our recycled content is at minimum 40% | 1 Point for 10% |
| MR Credit 4.2: Recycled Content 20% | Plus 1 Point for 20% (in addition to MR Credit 4.1) | |
| MR Credit 5.1: Regional Materials: 10% Extracted, Processed & Manufactured Regionally (use a minimum of 10% (based on cost) of total materials value that have been extracted, processed, and manufactured within 500 miles of project site.) | Roxul has 2 strategically located plants – one in Ontario and another in British Columbia – both are near highly populated areas and in close proximity to major transportation routes. Project site distances would have to be calculated for eligible Points. | 1 Point for 10% |
| MR Credit 5.2: Regional Materials: 20% Extracted, Processed & Manufactured Regionally (same as in MR Credit 5.1) | Plus 1 more point for 20% | |
| Indoor Environmental Quality | ||
| EQ Credit 3.2: Indoor Air Quality Management Plan – Before Occupancy | Roxul meets – or is significantly below – the maximum concentration criteria of IAQ pollutants set out by LEED. By minimizing the indoor air quality pollutant potential, the comfort and well-being of the construction workers and building occupants are enhanced. Roxul products offer a higher R-value. This minimizes thermal cycling due to external conditions, contributing to a more comfortable thermal environment. | 1 Point |
| EQ Credit 7.1: Thermal Comfort Design | 1 Point | |
| Innovation & Design Process | ||
| ID Credit 1 to 1.4 | Roxul products provide superior thermal acoustical and fire performance | 6 Points |
Share