Our structural steel subcontractor is currently using a Sherwin Williams Weld-Thru Primer at the shop location. This is for anti-corrosive/rust purposes. I don't have to include this product as part of this credit, correct?

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Glen Phillips

Sustainability Professional

Bright Green

LEEDuser Basic Member

31 thumbs up

Tue, 03/14/2017 - 18:31

The VOC requirements for NC 2009 apply to only site-applied coatings, so unless their shop is located inside the LEED project, it would be exempt.

Jon Clifford

LEED-AP BD+C

GREENSQUARE

LEEDuser Expert

261 thumbs up

Fri, 03/17/2017 - 23:12

When I encounter a shop-applied coating or primer, for steel or any other substrate, I always ask what product will be used if the shop coat gets damaged and requires on-site touch-up after delivery or installation. This situation is common for steel fabrications where welds, mechanical fasteners, or field modification must be re-primed on-site. Many specifications say to use the same product for on-site touch-up as was applied in the shop. In such cases, I include the shop coating in the IEQc4.2 documentation. If one of these shop coats doesn’t meet the VOC limits, I work with the design team and the contractor to find a compatible compliant repair product to use for on-site touch-up.

Jason Biondi

Managing Director

Energy Cost Solutions Group

LEEDuser Premium Member

13 thumbs up

Mon, 03/20/2017 - 01:58

Yes, when these welded surfaces are re-primed, one needs to include "Structural Steel primer" for IEQc4.2. You can document/qualify this coating as "Anti-Corrosive/ Anti-Rust Paint", the VOC limit will be 250 g/l; In our experience, we have found that Sherwin-Williams metal primer products are SCAQMD compliant.

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