We have to use a strong concrete bonding agent below a 2 to 3" Slab on grade to stick with the concrete foundation below the...

Does anyone know for sure how spray foam fireproofing (for structural steel members) is categorized for...

Forgive my ignorance here, but how does LEED v4 handle sealant tapes? In this case I'm asking about duct sealant tapes, but it could apply to any other tape used in construction. It seems clear...

Can US projects use products which show compliance with VOC emissions requirement through AgBB (European) testing? Or does it need to be CDPH only. 

There are particleboard products that are NAF with third party certifications that LEED reviewers will not accept because they do not have a CARB exempt executive order. I have asked reviewers to...

When reporting for the wall, ceiling category under Option 1, do all of the interior partition components need to be complaint- the gypsum board, the tape, the joint compound, the studs and the...

I believe drywall joint compounds and drywall finishing products (Mud) are considered Wet Applied Sealants. What Category do they fall under?

Do Bifma levels 1, 2, & 3 correlate to ANSI M7.1 2011 Sections 7.6.1, 7.6.2 and 7.6.3? If furniture is GREEN Guard Gold does it comply with 7.6.2 for full credit? I am trying to provide an...

For Wet Applied Products that meet IEQ credit 2, option 1: do you still need to provide the volume of the product used on the project, or is that just for option 2, Budget Calculation? Thanks!...

Has anyone found a terrazzo resin and sealing system that is LEED v4 compliant, i.e. CDPH, and they're happy with? Thanks!