Structural Integrity • Cost Effective • Crack Resistance • Environmental Design
LEED “Leadership in Energy and Environmental Design” is a rating system for sustainable construction. Sustainable Construction and the rating system developed by the CGBC has grown out of Energy saving efforts in Canada. Green Building construction encompasses many practices including, Construction and Demolition, debris recycling, Storm water management and our chief concern the use of environmental responsible Recycled and Regional materials. LEED is becoming more and more accepted and will soon become the standard rather than the exception.
How is ECR a green product environmentally friendly?
- ECR substantially increases structural durability.
- ECR produces virtually no waste during the manufacturing process
- ECR is manufactured using rebar that is made from 100% recycled material and regional material in accordance with the CGBC MR4.1 and MR5.1 respectively.
- ECR is 100% recyclable after use
What LEED credits are available to the purchaser of ECR
As mentioned, ECR consists of rebar manufactured from recycled material and Teme purchases rebar regionally. The template detailing whether our reinforcing steel suppliers shows the possible credits is available in the CGBC guide.
Recycled Materials MR 4.1 and MR4.2
The CGBC gives credits for building products that incorporate recycled materials, therefore reducing the impact resulting from the extraction and processing of new virgin materials and by-passing energy and greenhouse –intensive industrial and manufacturing processes.
MR4.1 (1 point )
Use materials with recycled content such that the sum of post-consumer recycled content plus one-half of the pre-consumer content constitutes at least 7.5% of the total value of the materials in the project.
The value of the recycled content portion of a material or furnishing shall be determined by dividing the weight of recycled content in the item by the total weight of all material in the item, then multiplying the resulting percentage by the total cost of the item.
MR4.2 (1 point in addition to MR 4.1)
Use materials with recycled content such that the sum of post-consumer recycled content plus one-half of the pre-consumer content constitutes at least 15% of the total value of the materials in the project.
The value of the recycled content portion of a material or furnishing shall be determined by dividing the weight of recycled content in the item by the total weight of all material in the item, then multiplying the resulting percentage by the total cost of the item.
Note for MR 4.1 and 4.2. The application of epoxy coated rebar adds virtually nothing to the total weight of the rebar. The addition of the fusion bonded epoxy represents 1-2% of the weight of the rebar and this is more than offset by the removal of scale during the abrasive cleaning process. The weight of the rebar before coating is an accurate weight of the material after coating. Therefore the coating process itself does not alter the weight of the material.
Results MR 4.1 and 4.2
As detailed on the template (see below) and documented by letters issued by our rebar suppliers, all use recycled material exceeding the requirements of MR 4.1 and 4.2
Supplier verification letters are linked as follows:
Nucor
Gerdau Ameristeel
ArcelorMittal
Hamilton Specialty Bar
Regional Materials MR 5.1 and 5.2
The CGBC gives credits for building materials and products that are extracted and manufactured within the region, thereby supporting the use of indigenous resources and reducing the environmental impacts resulting from transportation.
MR5.1 (1point)
Requirements
Use a minimum of 10% of building materials or products for which at least 80% of the mass is extracted, processed and manufactured within 800 km (500 miles) of the project site.
OR,
Use a minimum of 20% of building materials or products for which at least 80% of the mass is extracted, processed, and manufactured within 2400 km (1,500 miles) of the project site, and shipped by rail or water.
OR,
Use a minimum of 20% of building materials or products that reflect a combination of the above extraction, processing, manufacturing and shipping criteria (e.g., 10% within 800 km (500 miles) and 10% shipped by rail within 2400 km (1,500 miles).
Results MR 5.1 and 5.2
As detailed on the template, some steel mills qualify for the above credits and some may not. The relevant distance is the aggregate distance from the steel mill to Teme and then to the project.