How does material which don't have any chemical content OR no chemical used during its manufacturing but is a permanent building material, comply with credit? For example Granite OR marble, these material don't have any chemicals.
Other material such as red clay bricks (kiln heated), natural hardwood or aggregate, sand, etc.? Also, why would the manufacture will carry out costly chemical assessment in the event when he know that his materials are naturally occurring and don't have any harmful chemical in it?
Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11474 thumbs up
April 2, 2019 - 7:45 pm
Manufacturers of these products can easily obtain a Health Product Declaration (HPD) at low cost. There are specific directions in the HPD for providing an inventory of biological ingredients like wood, and geological materials like stone. If a manufacturer knows their ingredients, this should be very easy to complete, and result in an HPD that is compliant with both Option 1 and Option 2 of this credit.
Why would they want to? Because designers are asking for it, because we know from experience that chemicals get added to products without our knowledge, and that may be toxic. For example, epoxy resin, which uses bisphenol-A, is routinely added to quarried stone to densify it. Wouldn't you rather know if this is the case or not?