USGBC plans on the horizon
To a great extent, LEED is suffering
from its own success. Because there was such a great need
for environmental guidance, people latched onto it so quicklyand
demanded so many versions for different building typesthat
USGBC has yet to have enough time and resources to fully refine
and add depth to the original model. Nonetheless, says Peter
Templeton, USGBC director of LEED and international programs,
We are very much listening to the feedback.
Templeton believes some concerns will
be addressed in LEED 2.2, which is currently under development
for tentative release in the fall. For example, this version
will reference the 2004 edition of ASHRAE 90.1, thereby avoiding
the vexing energy-modeling problem created by the 1999 version
of the standard. It will also include an online tool that
promises to be more user-friendly and cut down on the paperwork.
Templeton expects other changes in the documentation and review
process to make it easier for applicants to cope with the
administrative process. And he anticipates some refinement
in the credits themselves.
performance tool from Canada, Green Globes
is being introduced to the U.S. market as
an alternative to the LEED Rating System.
Green Globes consists of a series of questionnaires,
customized by project phase and the role of
the user in the design team. A total of eight
design phases are supported.
SOURCE: NATIONAL INSTITUTE OF STANDARDS AND
Larger, more structural plans are being
considered down the road for LEED version 3.0, which Nigel
Howard, vice president of LEED and international programs
at USGBC, believes will be a template toward which all the
LEED products can gradually progress according to their respective
timetables. Says Howard, We dont envision making
LEED 3.0 more stringentbut we want to make it much smarter.
As an example, Howard suggests an ecological
index for sustainable sites. In this scenario, there could
be a greater range of possible points, depending on the potential
impact of a project on its local habitat. A project built
on a derelict site with no species of flora and fauna will
show a net improvementand therefore earn more pointsif
part of the area is landscaped. And a project built on woodland
could be penalized to a greater extent than one built on farmland,
because the original woodland would have had far more ecological
diversity to start with than the farmland, and therefore the
construction would have a greater negative effect on site