Hello everyone, I am a project manager and we are going out with an ITT soon. The building is aiming for a LEED silver rating and we would like to inform the contractors that they should keep this in mind. I am aware of the construction activities prevention pollution and construction waste management credits but need more guidance on the actual materials that the contractors should consider when creating their BoQ.
I am also aware of the MR category (raw materials, locally sourced etc) but if someone could give advice as to what exactly we should tell the contractors to consider when preparing the BoQ it would be much appreciated. Eg: Consider XYZ when pricing blockwork. Other materials to seek sustainable options include ABC....
Any help on this would be much appreciated.
David Posada
Integrated Design & LEED SpecialistSERA Architects
LEEDuser Expert
1980 thumbs up
November 25, 2019 - 9:20 pm
For a BIll of Quantities (BoQ) documents, I haven't reviewed the fine print of any, but I think it would depend on what MR credits and options are being pursued, how clearly the LEED requirements are defined in the Specifications, and what materials are being specified. Hopefully Division 1 and/ or the individual sections of the project's specifications provide guidance on this, such as a scorecard or list of credits being pursued, and language in the submittal or product requirements as to what LEED requirements need to be met and what documentation is expected from the sub-contractors.
You may need to ask the design team to clarify if any particular credit options or materials are being targeted to meet criteria such as FSC certified wood, providing Environmental Product Declarations (EPDs), Healthy Product Declarations (HPDs) or other third party certifications listed in the credit language.
You'll also need access to the online LEED Credit Library or the printed v4 Reference Guide to understand what documentation is needed for the three MR Building Product Disclosure & Optimization (BPDO) credits and probably also the EQ Low Emitting Materials credit.
In general, for MRc BPDO - EPDs credit the subs will need to find out if any of the products they are providing have EPDs available from the manufacturers, and whether those are product-specific or generic industry-wide EPDs, unless the design team is choosing to seek out and provide the EPD documentation themselves. Often, generic EPDs can only be used by manufacturers who participate in the trade group that sponsors the EPD. For example, only light gauge steel framing from companies that are members of the steel industry group sponsoring the light-gauge steel framing EPD can count toward the EPD requirements. This is indicated in the text of the light gauge steel framing EPD. Those EPDs should be provided by the subs with the product submittals. With more and more EPDs available, this shouldn't be too hard, especially once you understand the LEED language for what counts as an individual "product," such as different types of gypsum board, flooring, ceiling tile, paint, etc.
For MRc BPDO - Material Ingredients, Option 1, the goal is to source a certain number of products with any kind of compliant certification of the material ingredients, in particular HPDs, but also Cradle to Cradle, Declare, Red List Free, etc. The Option 2 of the credit has stricter requirements for sourcing materials that are optimized to not have un-healthy ingredients, so the HPDs and other certificates have to be scrutinized to see if they meet the credit requirements. It's a bit of a learning curve to understand whether a product's HPD, Declare Label, or other certificate meets the Option 2 criteria. Again, you might contact the design team to see if there are particular products or categories of products they have identified as having the appropriate certifications so you don't chase your tail looking for compliant loading dock bumpers. That applies also to the Low Emitting Materials credit, where there are several different categories pf products that may or may not be pursued for compliance.
Hope that's enough to get you started!
Jade Jenkins
November 26, 2019 - 1:10 pm
This is incredible! Thank you so so much for the advice, it's much appreciated