Control: Increase ventilation
Quick Tips to Increase Ventilation at Indoor Construction Sites Without Operating HVAC Systems
COVID-19 is airborne and spreads faster and further in enclosed areas than outdoors. As temperatures drop, construction work is moving inside, work areas are being enclosed, and temporary warm-up stations are being set up. Since ventilation guidance issued by OSHA, the CDC, and other organizations largely focuses on workplaces with working HVAC systems, these are some suggestions on how to improve ventilation on construction sites.
Ventilation and Air Quality for Reducing Transmission of COVID-19
Because good ventilation and indoor air quality are important in reducing airborne exposure to viruses, this guidance outlines methods for decreasing the number of viral particles in indoor air by increasing the intake of outdoor air and/or through effective air filtration.
COVID-19 Exposure Control Planning Tool
The CDC and OSHA recommend that companies develop a plan to protect their employees and prevent the spread of COVID-19. This free planning tool is designed to help users develop a plan for their worksite in 4 steps. Now in a soft launch, feedback is welcome - email firstname.lastname@example.org.
HVAC filtration for controlling infectious airborne disease transmission in indoor environments: Predicting risk reductions and operational costs
This research finds that recirculating HVAC filtration was predicted to achieve risk reductions at lower costs of operation than equivalent levels of outdoor air ventilation.
Source: Building and Environment
UC Davis Energy and Efficiency Institute and NEMI White Paper on Ventilation Verification and Optimization in Educational Facilities
This White paper uses CDC and ASHRAE recommendations along with recent studies on ventilation in schools to develop a plan for ventilation verification. It can be downloaded and was updated June 4, 2020.
OSHA: COVID-19 Control and Prevention - Construction Work
This OSHA guidance supplements its general, interim guidance for all workers with potential occupational exposure to SARS-Co-V-2. It is for construction employers and workers, such as those engaged in carpentry, ironworking, plumbing, electrical, heating/ ventilation/air conditioning/ventilation, masonry and concrete work, utility construction work, and earthmoving activities.