ASHRAE Insights - December 2019 - 1

Insights
December 2019

Standard 90.1

Updates to Energy Standard Provide
Guidance to Exceed Efficiency Goals
The latest edition of
ASHRAE's most well-known
energy standard includes
more than 100 updates
since it was last published.
ANSI/ASHRAE/IES Standard
90.1-2019, Energy Efficiency Standard for Buildings
Except Low-Rise Residential
Buildings, includes new
and updated equipment efficiency requirement tables
and a clearer compliance
path for renewable energy
treatment.

The expanded, revised
version focuses on energy-saving measures the
Standard 90.1 committee
hopes will help designers
create more energy-efficient buildings.
"The goal of the 2019
version of 90.1 was to
provide clearer guidance
for exceeding efficiency
goals," said Drake Erbe,
Member ASHRAE, chair of
the Standard 90.1 committee. "This new version

focuses on energy-saving
measures which we hope
will reward designs for
achieving energy cost
levels above the standard
minimum and result in
more efficient buildings
and more innovative
solutions."
From energy efficiency
requirements for design
and construction of
new buildings and their
systems, the standard provides minimum require-

Standard 62.1

Ventilation Rate Procedure
Simplified in 2019 Revision
The recently updated ANSI/
ASHRAE Standard 62.1-2019, Ventilation for Acceptable Indoor Air Quality,
simplifies calculations and improves
options in procedures for designers
and practitioners to apply in many
of their designs, said Jennifer Isenbeck, P.E., Member ASHRAE, who
is chair of the standard's project
committee.
The 2019 version of the standard
includes recent research and equipment updates, removes citations

and provides clarification and
options to users.
"ASHRAE 62.1-2019 will continue
on a path of improved indoor air
quality to address all of humanity. The updates in this document
hope to achieve clarity to the user,
address misinterpretations and
include improved equipment and
building requirements," she said.
Among the changes is a simplified
Ventilation Rate Procedure to imSee 62.1, Page 13

ments for energy-efficient
design for most buildings.
The energy standard
See Standard 90.1, Page 12

Standard 62.2

Optional Particle
Filtration Credit
Improves Flexibility
ANSI/ASHRAE Standard
62.2-2019, Ventilation and
Acceptable Indoor Air Quality in
Residential Buildings, allows for
more design flexibility through
the use of the optional particle filtration credit, said Iain
Walker, Ph.D., Fellow ASHRAE,
chair of the standard's project
committee.
The updated standard's comSee 62.2, Page 13



ASHRAE Insights - December 2019

Table of Contents for the Digital Edition of ASHRAE Insights - December 2019

ASHRAE Insights - December 2019 - 1
ASHRAE Insights - December 2019 - 2
ASHRAE Insights - December 2019 - 3
ASHRAE Insights - December 2019 - 4
ASHRAE Insights - December 2019 - 5
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