The ASHRAE Epidemic Task Force has updated its reopening guidance for HVAC systems to help mitigate the transmission of the COVID-19 virus.
“The Building Readiness Guide includes additional information and clarifications to assist designers and commissioning providers in performing pre- or post-occupancy flush calculations to reduce the time and energy to clear spaces of contaminants between occupancy periods,” said Wade Conlan, ASHRAE Epidemic Task Force Building Readiness team lead, in a news release. “New information includes the theory behind the use of equivalent outdoor air supply, method for calculating the performance of filters and air cleaners in series, and filter droplet nuclei efficiency that help evaluate the systems’ ability to flush the building.”
There is now a link to a view-only Google Sheet that can be downloaded for use. This will help determine the available equivalent outdoor air changes and time to perform the flush.
The guide now also includes data to consider for heating of outdoor air and the potential impact on pre-heat coils in systems.
Related Stories
| May 31, 2013
Bond package to fund $2.7 billion in new university construction dies in Texas Legislature
A $2.7 billion state bond package that would have financed expansion projects at more than a half-dozen universities in Texas died on the final day of the legislative session.
| May 31, 2013
Tax break proposal for $1.5 billion expansion of Minnesota’s Mall of America advances
The Minnesota Legislature approved tax breaks worth $250 million for a $1.5 billion project that would double the size of the Mall of America in Bloomington, Minn.
| May 31, 2013
Debate in the Northwest over how to apply lessons of net-zero construction in codes
Success in constructing net-zero homes in the Northwest has sparked debate over how far green codes should go.
| May 28, 2013
Fire Chiefs Assn., IBHS call for federal legislation to encourage states to adopt, enforce building codes
The International Association of Fire Chiefs (IAFC) and the Insurance Institute for Business & Home Safety (IBHS) are asking Congress to enact the Safe Building Code Incentive Act (SBCIA), which provides financial incentives for states to adopt and enforce building codes.
| May 28, 2013
Proposal to water down Las Vegas green building code draws criticism
A proposed bill before the Las Vegas City Council would allow any building built before 2009 undergoing a renovation to only have to meet the energy code requirements at the time of initial construction, not the current, stricter guidelines.
| May 28, 2013
Mazria: ‘No need for new power plants to meet growth in buildings sector’
A new analysis of federal data shows that the U.S. buildings sector has made enormous strides in efficiency over the last six years—potentially eliminating the need to build any new power plants to support growth in the sector through 2030.
| May 27, 2013
Support increasing in Ontario to change codes to allow taller wood frame construction
Developers and home builders are asking the Ontario government to change the building code to allow construction of six-story wood frame buildings.
| May 27, 2013
'JUST' label aims to assess social justice on building material manufacturers
At the Living Future's annual conference in May, Jason McLennan, and architecture firm BNIM founder Bob Berkebile launched the JUST label, an extension of the Declare label that addresses social justice and equity issues.
| May 27, 2013
Bipartisan legislation filed to revamp EPA lead rule
Bipartisan legislation has been introduced in the U.S. House of Representatives to reform the Environmental Protection Agency's (EPA) Lead: Renovation, Repair and Painting (LRRP) Rule.
| May 27, 2013
Bill would mandate contractors use subs identified in bids on federal projects
Rep. Carolyn Maloney (D-N.Y.) filed a bill in May that would require prime contractors that bid on federal construction projects over $1 million to list each subcontractor they plan to use for $100,000 or more of work.
