Commercial & institutional buildings
Outdoor air rates, exhaust and air distribution for offices, retail, schools, places of worship and recreation venues, with energy or heat recovery where it pays back.
OBC Part 6 · ASHRAE 62.1ENGINEERING SERVICES
Ventilation & Indoor Air Quality Engineering
Ventilation designed to the regulation that governs your building—from apartments and offices to commercial kitchens, parking garages, clinics and industrial processes.
APPLICATIONS & REGULATIONS
The right requirement for each space.
Ventilation rules differ by occupancy, process and contaminant. EEB identifies which code, standard or workplace regulation applies before sizing the system.
Residential buildings
Mechanical ventilation and heat recovery ventilators for houses, apartments and multi-unit residential buildings.
OBC Section 9.32 (Part 9) · ASHRAE 62.1 / 62.2 for Part 3 residentialCommercial kitchens
Hood exhaust, grease duct routing, make-up air and building pressure balance for restaurants, including solid-fuel cooking.
NFPA 96 · OBCParking garages & vehicle areas
Exhaust and supply systems controlled by carbon monoxide and nitrogen dioxide gas detection for storage garages, repair bays and heated garages.
OBC · CO/NO₂ detection-controlled ventilationIndustrial processes & dust
Local exhaust ventilation, source capture hoods, ductwork and dust collector design, including combustible dust applications.
O. Reg. 851 (Industrial Establishments) · Reg. 833 exposure limits · NFPA 660Clinics & healthcare spaces
Ventilation, pressure relationships and exhaust for dental offices, physiotherapy clinics and care facilities.
CSA Z317.2 where applicable · OBCEXISTING FACILITIES
Ventilation assessments.
For existing buildings and workplaces, EEB reviews the installed systems, operating data and contaminant sources, calculates the required ventilation and reports where the facility falls short—with practical upgrade options.
Typical assessment scope
- Review of drawings, equipment data and process information
- Required ventilation and capture calculations against the governing regulation
- Compliance gap summary
- Upgrade options with budget-level comparison
- Design and permit drawings for the selected upgrade
Designed with the whole building
Ventilation interacts with heating, cooling, fire protection, electrical and structure. Because EEB designs those disciplines in-house, fans, make-up air units, duct penetrations, roof supports and gas detection wiring are coordinated on one drawing set.
Codes & standards: Ontario Building Code (Part 6 and Section 9.32), ASHRAE 62.1 and 62.2, NFPA 96, NFPA 660 (combustible dusts, formerly NFPA 652/654), CSA Z317.2, O. Reg. 851 and Reg. 833 under the Occupational Health and Safety Act. Out-of-province projects follow the applicable provincial regulations. Drawings and calculations are sealed by a licensed Ontario P.Eng.
PROJECT SUPPORT
Start with a defined scope.
Send your building location, available drawings, required services and target schedule. EEB will discuss the technical requirements and prepare an appropriate proposal.
Request an estimate →QUESTIONS
Frequently asked questions
Which ventilation regulation applies to my building?
It depends on the occupancy and what is being exhausted. Commercial and institutional buildings follow OBC Part 6 and ASHRAE 62.1; houses follow OBC Section 9.32; commercial kitchens follow NFPA 96; workplaces with process contaminants are also governed by Ontario's occupational health and safety regulations. EEB confirms the governing requirements first.
Does a restaurant hood need make-up air?
In most cases, yes. Air removed by the hood has to be replaced, or the building goes negative—causing door, draft and appliance problems. EEB sizes the exhaust and make-up air together to NFPA 96 and the OBC.
Do you design ventilation and dust collection for combustible dust?
Yes, within a defined scope. EEB designs source capture, duct velocities and collector arrangements using the process information and dust hazard analysis, coordinated with the NFPA 660 requirements that apply to the facility.
Can you check whether our existing ventilation meets the regulations?
Yes. EEB reviews the installed systems and process information, calculates required ventilation and reports any compliance gaps with practical upgrade options.
Do you design CO and NO2 ventilation for parking and storage garages?
Yes. EEB designs garage exhaust and supply systems controlled by carbon monoxide and nitrogen dioxide gas detection, coordinated with the electrical design.
What do you need from me to quote ventilation work?
The building use, floor area and ceiling heights, the processes or contaminants involved (safety data sheets for industrial work), existing equipment data, and any inspection or order you need to respond to.
START WITH A CONVERSATION