A new roof on new work: an addition, a dormer, a converted loft or a building going up from scratch.
New work is the one case where the roof can be got right rather than merely made watertight. Ventilation paths, ice barrier coverage and the tie-in to the existing structure are all cheap to do properly while the framing is exposed and expensive to correct afterwards.
On new work the decisions that cause leaks ten years out are made before the covering is opened. Sequencing with the other trades matters more than the roofing itself.
An addition or a dormer is the one chance to build a roof properly rather than make an existing one watertight. Almost all of it is cheap now and expensive later.
Where new framing meets old, the two will move differently. The junction needs a flashing detail designed for that, not a bead of sealant across the joint.
An addition that blocks the original eave intake starves the whole roof of air. This gets designed while the framing is open or it does not get done at all.
From the eave edge to at least 24 inches inside the interior wall line. On a low addition with a shallow pitch that can mean most of the roof.
Dry-in has to happen before the interior work starts, and any penetration — flue, vent, mechanical — wants to be set before the covering rather than cut through it afterwards.
Drip edge, rake detail and the gutter line are the parts of new work most often left to the end and rushed. They are also where wind gets under a covering first.
On a detached house new work is mostly a sequencing question: get the addition dried in before the interior trades start, and make sure the new roof has not blocked the original eave intake.
Twelve square miles at just over four thousand per square mile -- the least dense municipality covered here, with detached housing on real plots and a substantial spread of construction eras.
Reference point: the township on the ridge west of Newark, the largest by area in this service radius.
Sloping, elevated ground is the distinguishing factor. Houses sit at different heights relative to each other, exposure increases with elevation, and wind loading at the roof edge is higher than anywhere on the flat below.
A township this large has no typical roof; the era of the specific street matters more than anything about the town.
Twelve square miles at just over four thousand per square mile -- the least dense municipality covered here, with detached housing on real plots and a substantial spread of construction eras.
All areas coveredNewark sits in a humid subtropical shading into humid continental (Koppen Cfa/Dfa) zone with a full freeze-thaw winter — the combination hardest on flashings, fixings and mortar.
Water that gets into a lap, a joint or a hairline crack and then freezes expands. Northern New Jersey cycles through that repeatedly each winter, so small defects do not stay small.
Melt moves slowly under a snow layer and refreezes at the cold eave, backing water up under the covering where pitch does not help. That is what the ice barrier exists for.
Rain coming in sideways gets under laps that shed vertical rain perfectly well, which is why edge and flashing detail matters more than the covering specification.
The same job in the areas next door, and the other work we take on in this one.
General guidance about how these buildings are re-roofed, not a survey of any particular property.
Everything that causes leaks in ten years is decided before the covering is opened: the tie-in to the existing structure, the ventilation path and the ice barrier coverage. All are cheap while the framing is exposed and expensive afterwards.
Largely, yes. On a detached building the eaves, rakes and valleys can all be reached and the layer count checked, which is why quotes on detached houses hold better than quotes on shared roofs.
Replacing more than a quarter of a roof surface within any twelve months requires a construction permit under the New Jersey Uniform Construction Code. A full replacement is over that threshold, so yes — and the work is inspected at stages.
Tell us what the building is and roughly how old the roof is. That is usually enough to say what the job involves before anyone goes up.