We are using projected perlite on the inside of the building as a fire-resitance. Would this be considered a coating and if so under what category would it fall as far as VOC content is concerned?

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Jon Clifford

LEED-AP BD+C

GREENSQUARE

LEEDuser Expert

261 thumbs up

Wed, 07/16/2014 - 15:43

“Projected Perlite” appears to refer to sprayed-on perlite plaster. If so, the product probably does not qualify as a coating under IEQc4.2. However, if the plaster base contains organic binders or additives, adhesive VOC limits specified under IEQc4.1 could apply. Check material safety data to verify the composition of the plaster. If the plaster contains only inert, mineral, components such as gypsum & Portland cement, VOCs should not be a concern. However, to be safe, you could enter this product into the IEQc4.2 template as a "Pigmented Fire-Retardant Coating" with a VOC limit of 350 g/L if it meets this definition under SCAQMD Rule 1113.

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