Hi,
we are applying LEED BD+C v4 Core & Shell to a large office building. Scope of Core & Shell works inside tenancy areas:
- includes ceilings, HVAC (fan coils and outdoor air supply) and lighting;
- excludes floors finishing’s and partition walls that will be installed by the tenant.
Tenancy zones (area between 500 and 2.500 m2) will be delivered as open-spaces.
Some of the LEED pre-requisites applicable to HVAC and lighting systems will depend on equipment’s installed in the scope of the Core & Shell works as well as layout options (tenants responsibility). As example, ASHRAE 90.1 – 2010, section 6.4.3.1.1 – “Zone Thermostatic Controls - General” states that the supply of heating and cooling in each zone must be controlled by a sensor located within the zone. As final layout of tenancy areas is not included in the scope of Core & Shell works, it will be impossible to guarantee compliance with this requirements inside this areas.
For the sake of LEED compliance, is it enough to address this requirement within tenant lease agreement (e.g., including a section stating that fit-out works cannot compromise ASHRAE 90.1 mandatory requirements) ? Or it is necessary to provide a narrative describing how Core & Shell solutions adopted in tenancy areas favour compliance with this requirement (and all the others… including lighting, etc.).
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
December 18, 2018 - 3:13 pm
You are not required to include these mandatory requirements in your lease agreements but I think it is a good idea to do so, especially if the current code in your jurisdiction is behind 90.1-2010.
In the models you must model the tenant spaces identical to the baseline for those systems that will be in the tenant scope of work. This would include all of the mandatory provisions in both models. You do not need a final layout to do this. You will have to make some assumptions and just make sure they are consistent.