Rating System

LEED BD+C: New Construction

Rating System Version

v2 - LEED 2.2

Inquiry

I propose that the "Credit for Natural Ventilation, Heating and Cooling" be separated into 1. Natural Ventilation (1 CREDIT) , 2. Passive energy design to accomplish all heating and cooling requirements for 8 months of the year (2 CREDITS) Rationale: A) If a design uses natural ventilation for the majority of the year but because of the climate, cannot make the 8 months of passive energy goal, the design should still be entitled to one credit for using less energy than a conventional system would use. B)The passive energy target for 8 months of the year is an extremely difficult target to achieve, particularly on the heating side in cool, and even mild climates. Therefore, I believe that this measure should be worth at least 2 CREDITS.