I'd like to confirm that Round-Up Pro (EPA # 524-475) is okay to use for weed control in sidewalk cracks.

I am an advocate for raising the bar. However, significant market buy-in has not occured. We need to stay at LEED 2009 levels for more than just 2 years. It should be more like 5.

I'm trying to figure out how to document compliance with WEp1 and WEc3. I'm dealing with a situation where all indoor water use is part of the tenant build-out.

It is unclear whether or not rainwater harvesting techniques are allowed in the reduction calculation for the Rainwater Management credit. If they are not allowed, why?

Any difference between Secure bicycle racks and secure bicycle storage? In CS project with area larger that 300,000 sq.ft. (CS case 2), we need to provide secure bicycle storage.

We project 90+% of the credits will cost more to implement in LEED 2012 than the current cost in LEED 2009 and that is not including additional design team fees or LEED documentation.

All HVAC mechanical systems were existing. Only the ductwork was installed. There is Engineer for this project is there a way to comply without the signature?

I am a bit confused when it comes to Steel Joist and Deck. New Millennium and Vulcraft obtain steel from mills.

When calculating both the regional material and recycled content material percentages, do you use the subcontractors cost or can they include their markup?

Hello, I am working on a 1/2 block Neighborhood Development located within Manhattan.