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Our Commitment to the Environment and LEED Q & A

Simpson Strong-Tie strongly supports sustainable building practices, such as those established by the U.S. Green Building Council's Leadership in Energy and Environmental Design (LEED) Green Building Rating System™, NAHB Green, and local green building codes. As we learn more about the impact of our actions on the environment, the building industry must continue to adopt practices that reduce the environmental footprint of our built environment. To learn more about the ways Simpson Strong-Tie is working to minimize our impact on the environment, read Simpson Strong-Tie: Commitment to the Environment.

Since many of our customers are involved in green building, we are frequently asked how our products contribute to green building and in particular, how our products can earn credits under LEED® for New Construction and LEED® for Homes Rating Systems. The following Q&A helps clarify how to use Simpson Strong-Tie products to earn LEED credits and addresses common misconceptions about LEED. In addition, we've included information about using our products in conjunction with other products and with specific construction techniques and building designs to facilitate earning credits.

LEED for New Construction

Can Simpson Strong-Tie products contribute to credits under LEED for New Construction?

Yes, Simpson Strong-Tie products can contribute to credits MR 4.1 and MR 4.2. These credits require a minimum percentage of the value of the building materials to be recycled.

Simpson Strong-Tie structural connectors and mechanical anchors are made from a percentage of recycled steel; however, because we purchase steel from suppliers all over the world, it's difficult to determine with certainty the exact amount of recycled content in these products.

LEED allows a blanket assumption of 25% post-consumer recycled content for any steel product.

Several adhesive products are manufactured with recycled material

Simpson Strong-Tie Adhesive Product Recycled Material Content
EDOT Anchoring Adhesive 35.5%
ET-HP (formerly ET) Anchoring Adhesive 16.0%
SET High Strength Anchoring Adhesive 4.5%
CIP Crack Injection Paste-Over 21.0%

LEED for Homes

What specific Simpson Strong-Tie products can I use to earn LEED for Homes credits?

Simpson Strong-Tie products can be used to earn various LEED credits, as summarized in Table I below. Our connectors can be used in framing details, which are awarded credits under MR 1.4. A wide variety of framing details that are not called out specifically by LEED can improve building energy efficiency under EA 1.2 and 2.2. There are some construction materials that earn credits, such as fly ash in concrete, that may be specified without affecting the performance of Simpson Strong-Tie connectors. Finally, our connectors may be used to eliminate typical framing cutoffs, contributing to credit MR 3.2.

 

Simpson Strong-Tie products can be used to earn various LEED credits, as summarized in Table I below.

TABLE I
LEED Category Description Products

Energy & Atmosphere EA 1.2 (Performance Path)

Envelope Thermal Efficiency

Drywall Stop Joist Hangers Header Hangers Framing Clip Tie Plate

Energy & Atmosphere EA 2.2 (Prescriptive Path)

Envelope Thermal Efficiency

Drywall Stop Joist Hangers Header Hangers Framing Clip Tie Plate

Materials & Resources MR 1.4

Advanced Framing

DS Joist Hangers

Materials & Resources MR 2.2

Recycled Content

Fly ash in concrete foundations

Materials & Resources MR 3.2

Waste Reduction

Waste reduction through reduction in wood cut offs

Additional Resources