After a fire in a sprinklered DC rowhouse or condo: putting the system back before anyone moves home

The system did its job. A pan on the stove, a space heater against a curtain, a charger on a mattress, and one or two heads opened, held the fire to the room it started in, and the engine company from the nearest house finished it. What happens in the following weeks is the part nobody plans for. The sprinkler system that saved the building is now out of service, the heads that opened are spent, and a general contractor is about to start demolition in a room full of pipe that has been through a fire. This article walks through the order of work for a DC rowhouse or a small condo building, from the morning after to the day the riser valve is opened again.

What the fire department left you with

When the fire is out, the crew shuts the sprinkler system at the riser control valve so the open heads stop flowing, and the building is now a sprinklered building with no sprinklers. Someone from the fire department documents the incident, and if the damage reaches the structure or the utilities, a DC DOB inspector may post the building as unsafe to occupy until repairs are permitted and inspected. In a condo the posting can cover the whole building or one unit, depending on what burned.The first call after the adjuster is the sprinkler contractor, because the system has to be restored before the building is occupied again, and a contractor who sees the pipe before the demolition crew does can tell you what survived.

A system that is out has rules of its own

In a single family rowhouse on a 13D system, the house is yours and the only rule is the posting on the door. In a 13R condo building the association owns an impairment, which means the management company is supposed to tag the riser, tell residents, notify the alarm monitoring company if there is one, and decide whether a fire watch is needed while the system is down. The impairment and fire watch article covers that procedure. After a fire the impairment is not planned and nobody has the tag ready, so the first visit from the sprinkler contractor usually starts with hanging it.

The heads that opened and the heads that got hot

A head that opened is gone. It is replaced with the same model, temperature rating, and orientation that the approved drawings call for, and the spare head cabinet the install was supposed to leave behind is the first place to look. The heads that did not open are the harder call. A sprinkler head is a heat sensing device, and one that sat near a fire without reaching its set point has still been cooked. Any head in the room of origin, and any head with soot on the deflector or a cloudy bulb, is replaced as a group rather than argued over one at a time.

What the fire did to the pipe decides what stays

Most DC rowhouse retrofits run CPVC above the ceilings, and CPVC is listed to live behind a fire rated ceiling, not in a fire. Pipe that was behind intact drywall or plaster and shows no discoloration, sagging, or softened hangers usually stays. Pipe in the room of origin where the ceiling came down, or any run that is browned, blistered, or sagging between hangers, comes out back to a sound fitting. Steel pipe handles heat better but the hangers and the sealant at threaded joints do not, so steel gets a pressure test rather than a pass by eye. The pipe materials article explains why the two behave differently.

The permit, and who pulls it

Fire repair in DC runs on a DOB permit the same way a renovation does, and the sprinkler work rides on that permit as its own sheet, filed by the sprinkler contractor under their own license rather than by the general contractor. Replacing heads like for like and cutting out a damaged branch line is a repair, but if the rebuild moves walls, raises a ceiling, or adds a room, the heads move with the plan and the sheet becomes an alteration with a hydraulic check behind it. The DOB permit steps article lays out that flow. Ask the general contractor for the sprinkler contractor’s name before signing, and check the license the way the licensing article describes. A fire rebuild is exactly the job where a drywall crew is tempted to cap a pipe and keep going.

Sequence with the rebuild

The pipe goes back before the ceilings close, and the test happens before the paint. A fire rebuild compresses that schedule because the owner wants to move home, so the sprinkler contractor needs a date from the general contractor for when framing is done and another for when ceilings go up, and the hydrostatic test sits between them. The DOB rough inspection for the sprinkler work happens with the pipe exposed. The final happens with heads trimmed and the system charged, and in a 13R building the alarm company confirms the flow switch reports again. The punch list article is the same walk through you would do on a new install, and it applies here with one addition. Ask for the list of every head replaced, with locations, so the next inspector and the next owner know which heads are new.

Insurance, and the paper that helps

The adjuster will scope the sprinkler system as part of the dwelling and will want three things. The fire department incident report, which shows the system operated. The sprinkler contractor’s report on what was damaged, which replaces guesswork with a count of heads and feet of pipe. And the final test report with the DOB inspection sign off, which closes the claim. Keep the file for the sprinkler credit at renewal. In a condo the unit owner versus association split decides who files which claim, and the pipe above the unit ceiling is nearly always the association’s.

Quick answers