Water coming in now. The first job is to stop it spreading and protect what is underneath; the permanent repair follows once the roof can be worked on safely.
An active leak has two separate problems running at once: water entering the building, and water already inside it moving somewhere worse. They need different responses, and the second one is usually more urgent than people expect — a ceiling holding a few litres in a bulge is a structural risk, not a decorating one.
Stabilising a roof is not repairing it. Covering buys time in which the roof can be inspected properly, in conditions where the inspection is worth anything.
Most of the lasting damage from an active leak happens to what is underneath it, not to the roof. The order of operations matters more than speed.
Before anything structural, clear what is underneath. Water tracks along ceilings and finds light fittings and sockets, which is the part of a roof leak that becomes dangerous rather than merely expensive.
A ceiling holding water in a bulge will eventually come down in one piece. Relieving it deliberately — a small hole at the low point, a bucket underneath — is safer than waiting for it to fail on its own.
Temporary covering works only when it extends well past the suspected entry point and is secured at the top edge. A sheet laid over a wet area and weighted at the corners diverts water sideways and usually makes the interior damage wider.
What the weather was doing when it started — driven rain from one direction, sustained rainfall, snowmelt — narrows the diagnosis more than anything visible afterwards.
A stabilised roof is not a repaired roof. The diagnosis still has to happen in conditions where the roof can actually be walked and examined.
Access runs between buildings and through side gates. Where a ladder cannot be footed safely in the gap, the roof has to be reached from a different elevation than the one the leak is on.
Reference point: the township on the Passaic River south of Nutley.
Three-family houses carry the most awkward version of the multi-family problem: three ceilings under one roof, and the unit that sees the stain first is often not the one nearest the entry point.
Belleville's housing is close enough in age and form to Passaic's that the same failure points recur -- chimney flashing and rear-addition tie-ins above everything else.
Densely built at over eleven thousand per square mile, with a large stock of two- and three-family houses of the same era and form as Passaic's.
All areas coveredUseful to know before accepting any quote, because a scope that ignores these is a scope that will have to change later.
New Jersey adopts a single Uniform Construction Code and municipalities may not set lesser or greater technical requirements. A repair specified correctly in Passaic is specified correctly in Clifton.
Replacing more than a quarter of a roof surface within any twelve-month period triggers a full construction permit. Splitting one job into two smaller ones inside that window does not avoid it.
Northern New Jersey sits in the design zone where an ice barrier is required, running from the eave edge to at least twenty-four inches inside the interior wall line. On older roofs it is frequently absent, which shows up as recurring winter leaks at the eaves.
In Passaic the Uniform Construction Code is enforced by the city's Division of Code Enforcement, which is where permits for qualifying roof work are issued.
The same job in the areas next door, and the other leak types we handle in this one.
Answers are general guidance about how these roofs behave, not a survey of any particular building.
Move anything underneath that water would ruin, and if the ceiling is bulging, relieve it deliberately with a small hole and a bucket rather than waiting for it to come down. Note what the weather was doing when it started.
Buildings sit close enough that the work usually happens from the gap between them or over a side gate. Whether that gap is clear, and who controls it, often decides how quickly the roof can be examined.
Only if more than a quarter of the roof surface is replaced within a twelve-month period — that is the threshold under the New Jersey Uniform Construction Code. Most targeted leak repairs sit well under it, but the scope decides, not the label on the job.
Describe what you are seeing and when it started — that is usually enough to narrow the cause before anyone climbs anything.