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 ProfessionalBright Green
42 thumbs up
March 14, 2017 - 2:31 pm
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+CGREENSQUARE
LEEDuser Expert
323 thumbs up
March 17, 2017 - 7:12 pm
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 DirectorEnergy Cost Solutions Group
17 thumbs up
March 19, 2017 - 9:58 pm
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.