Fire Protection Design in Edmonton

What fire protection design covers on a commercial project

Fire protection design in Edmonton turns the architect's floor plans into sprinkler and fire alarm drawings that a permit reviewer can check and an installer can build from. Two things come out of it. The layout is the pipe sizes, head locations, devices, panels and risers. The proof is the hydraulic calculation showing the water supply can feed that layout and, on the alarm side, the riser diagram and sequence of operations. We draw in AutoCAD and HydraCAD, coordinate in BIM and assemble the permit drawing package.

The National Building Code 2023 Alberta Edition (NBC(AE) 2023) sets the standards. Sprinklers are designed and installed to NFPA 13-2019 (3.2.5.12), standpipes to NFPA 14-2013, fire pumps to NFPA 20-2016 and fire alarm systems to CAN/ULC-S524:2019. Not NFPA 72. Plenty of out-of-province pages quote NFPA 13-2022 or 2025, and neither binds an Edmonton project unless the AHJ or a contract asks for it.

What we need from the design team to start

Six inputs drive almost every design decision. Storage and the water supply tend to arrive last, and they move the design the most.

The flow test deserves its own paragraph. NFPA 13-2019 (4.6.1.1) wants a flow test used for design to be no more than 12 months old at working plan submittal, unless the AHJ approves another timeframe. When the test was run matters as much as what it read, because supply pressure moves with demand on the city main and a test taken at a quiet hour flatters the supply. EPCOR has a hydrant flow test request form, so ask it for current data for your address, and start early. A stale test holds up the calculation.

If the owner plans to change what's stored, say so before the layout is drawn. A building designed for ordinary hazard doesn't get to hold high racks later just because the racks fit. There's more on that in our piece on ESFR sprinklers for Edmonton warehouses.

Hydraulic calculations, without the algebra

A hydraulic calculation answers one question: with every sprinkler the design says will open flowing at once, does each one get enough pressure?

1. Pick the design criterion for the hazard. It's either a density over an area, or a set number of sprinklers at a set pressure.
2. Put that area on the plan at its most demanding spot, usually the far end of the longest run from the water supply. That's the remote area.
3. Work back from the remote heads toward the source, adding friction loss for every length of pipe and every fitting, plus any gain in elevation.
4. End up with the pressure and flow needed at the base of the riser, add the hose stream allowance where NFPA 13 calls for one, and plot that point against the flow test curve.

If the demand point sits under the supply curve, the design works. How far under is your margin, and a calculation that clears by a whisker fails the first day the city main runs low. When it doesn't clear, the levers are larger pipe, a gridded or looped layout that cuts friction, or a fire pump with or without a storage tank. Pumps cost money and add a weekly test for the life of the building, so we'd squeeze the pipe sizing first.

Any change to the inputs reopens the calculation: new storage, a raised ceiling, a different hazard class, a weaker supply. Alarm design has its own arithmetic (circuit loading, battery capacity, voltage drop on notification circuits), but it never depends on the water main.

Coordination and the drawing set you'll receive

Sprinkler mains and branch lines share ceiling space with duct, cable tray, lights and structure, and they still have to meet head spacing and obstruction rules. BIM coordination puts the sprinkler model in the shared model so clashes get found on a screen instead of from a lift. Dry systems need pitch to drain, which takes away some of the freedom to shift pipe around.

A coordinated set typically gives the general contractor:

• sprinkler shop drawings, with plans, sections and details showing head types and locations, pipe sizes and hangers;
• the hydraulic calculation package;
• fire alarm drawings: device layout, riser diagram, panel and power supply details, and the sequence of operations;
• product data for heads, valves and devices;
• the permit drawing package for the application to build.

That last item is a code requirement, not a courtesy. Before a suppression or alarm system is installed or altered, scaled plans with full details go in with the application to build (NBC(AE) 2023 Division C, 2.2.3.2(1) and 2.2.3.3(1)). The City's Commercial Building Permit Application (February 2026 version) asks whether sprinkler drawings and hydraulic calculations are provided, whether schedules are provided for sprinkler and fire alarm work, and whether commercial kitchen suppression is involved. So design sits ahead of installation on your schedule. The installation page shows what follows.

Registered professionals, schedules and the Edmonton permit path

Who authenticates the design depends on the building. Where professional involvement applies, plans must be authenticated by a registered professional unless the AHJ deems the work a minor alteration (Division C, 2.2.3.2(2) and 2.2.3.3(2)). A registered professional is an architect, an engineer registered under the Engineering and Geoscience Professions Act, or a licensed interior designer (Division A, 1.4.1.2).

Small buildings have exemptions in Division C, 2.4.1.1(1) that vary by occupancy. A one-storey business, mercantile or industrial building up to 500 m2 is one example, so read the clause for yours. Outside the exemptions, the owner has to show before construction that a registered professional has been retained to design the sprinkler or alarm system, review the installation in the field, and witness the testing (suppression) or verification (alarm) afterward (2.4.1.3 and 2.4.1.4).

The paperwork follows a pattern. Schedule A (owner and coordinating registered professional) and Schedule B (each registered professional of record) go in at permit. Schedules C-1, C-2 and C-3 (assurance of compliance, field review, delegated design) follow substantial completion, and the AHJ must receive C-1 before issuing an occupancy permit or permission to occupy (2.4.2.2 to 2.4.2.5). Where sprinkler shop drawings are delegated to a designer, one Alberta municipal guideline has the registered professional list that work on Schedule B, with a C-3 assuring it. Who carries what on your project is set in the schedules, so it's worth asking at kickoff. Our guides for general contractors go through sprinkler submittals and permits and the fire protection closeout package.

In Edmonton, the City's Professional Involvement Standards for changes to existing commercial buildings (29 November 2024) make professional involvement mandatory for any change to sprinkler, standpipe and hose or fire pump systems, and for any change or addition to fire alarm, voice communication or emergency power systems. Fire signalling work needs a building permit plus an electrical permit. The City's commercial plumbing and gas permit page lists sprinkler systems, and we couldn't confirm which sprinkler work needs which permit, so ask the City before you price it.

Design authentication and installer qualification are separate questions. Whoever authenticates the drawings, Alberta's fire code treats journeyperson sprinkler system installers, with supervised apprentices, as the qualified people to install or alter sprinkler systems (Division C, 2.2.4.4).

When the design changes mid-project

Every tenant tweak that moves a ceiling, a wall or a duct moves heads and pipe. Moving a head or two is a drawing revision. A change in use, storage or ceiling height can change the hazard classification and reopen the calculation. The plan-submission rule covers alterations as well as new work, so ask the AHJ which revisions go back for review.

The fire code adds a wrinkle after opening day. Where a change of use creates a hazard beyond what the sprinkler and alarm systems were designed for, they must be upgraded (NFC(AE) 2023 Division B, 2.1.3.1). If a tenant fit-out changes what's stored, that's a design question and not just a lease question. Change-of-use analysis is fire code consulting work.

Tell the designer which areas are still moving. Those get drawn last.

Where designs collide

• Ductwork or cable tray hung first in the path of a sprinkler main, forcing offsets and extra fittings.
• Beams, lights, wide ducts and signage that block the spray pattern under a head. NFPA 13 has obstruction rules, and the fix is a drawing change, not a site improvisation.
• Unheated areas such as loading docks and vestibules. Fire protection equipment there has to be protected from freezing (NBC(AE) 2023, 3.2.5.17), which usually means a dry-pipe zone or reliable heat. See wet vs dry sprinklers in Alberta winters.
• Shell-and-core buildings drawn for a stated hazard class, then leased to a tenant with heavier storage.
• Elevator, HVAC and door-hardware interfaces on the alarm side, where the controls contractors need the sequence of operations early.
• A water supply that turns out short after the drawings are done.

To start a design, send drawings and the site address through the contact page. The fire sprinkler and fire alarm pages describe the systems themselves.

Frequently asked questions

Do I need an engineer to design a sprinkler system in Edmonton?

It depends on the building. Outside the small-building exemptions in NBC(AE) 2023 Division C, 2.4.1.1(1), the owner must show a registered professional has been retained to design the sprinkler or alarm system, review the installation and witness the tests. For changes to existing commercial buildings, the City's Professional Involvement Standards also require it. Confirm the specifics for your project with the AHJ.

Which NFPA 13 edition applies in Alberta?

NFPA 13-2019, as referenced by NBC(AE) 2023 (3.2.5.12). NFPA 13R-2019 and 13D-2016 cover defined residential and small care buildings. The 2022 and 2025 editions of NFPA 13 exist, but they aren't the Alberta requirement. Fire alarms are designed to CAN/ULC-S524:2019, not NFPA 72.

How old can a water flow test be?

NFPA 13-2019 (4.6.1.1) wants a flow test used for design to be no more than 12 months old at working plan submittal, unless the AHJ approves otherwise. If the test is older, or something has changed on the supply side since, get a new one. Start the request early, since the calculation can't be finished without it.

Will a tenant fit-out change the sprinkler design?

Moving ceilings or walls means moving heads. Changing storage or use can change the hazard classification, which reopens the hydraulic calculation. Under NFC(AE) 2023 Division B, 2.1.3.1, systems must be upgraded when a change of use creates a hazard beyond what they were designed for.

Related reading

• Sprinkler submittals and permits, a guide for general contractors. What lands on your desk in a fire sprinkler design submittal, what the designer needs from you first, and how permits, registered professionals and revisions work in Alberta.

Sources

• National Fire Code 2023 Alberta Edition, National Research Council Canada
• Fire codes and standards, Government of Alberta
• Commercial Building Permit Application, City of Edmonton
• Professional Involvement Standards for building permits, City of Edmonton
• Electrical Permits - Commercial, City of Edmonton
• Plumbing and Gas Permits - Commercial, City of Edmonton
• Professional Involvement and Schedules guideline, City of Medicine Hat
• Hydrant Flow Test Request, EPCOR
• AFSA Technical Challenges, Sprinkler Age