Why solar and roofing should be planned together
The single most expensive mistake we see in New Jersey solar is a homeowner who installs panels on a fifteen-year-old roof and then needs to replace the roof eight years later. Removing and reinstalling an existing solar array adds substantial cost that could have been avoided by replacing the roof first. Our rule of thumb: if your shingle roof has ten or more years of remaining life, install solar now. If it has seven or fewer, replace the roof before the panels. Between those, we'll look at the specific condition — granular loss, seal strip integrity, any evidence of active leaks — and give you an honest read. Sometimes the right answer is 'wait two years, replace the roof then, install solar on top.' We'll say that when it's true.
NJ code, ASCE 7, and the shore wind zones
New Jersey's residential roofing code references ASCE 7 wind-load requirements, and those requirements vary sharply depending on where your house sits. Inland NJ (most of Middlesex, Somerset, Hunterdon, Morris, Warren) falls in a 115 mph basic wind speed zone. Closer to the coast, wind loads rise: Monmouth and Ocean shore areas hit 130 mph or higher; Cape May and Atlantic County oceanfront parcels approach 140 mph. That matters for shingle selection (we spec 130+ mph wind-warranty shingles on any coastal job), fastener schedule (six nails per shingle, not four, in high-wind zones), and especially for solar racking attachment. If you're within about two miles of the shoreline, we use upgraded rail systems and denser attachment schedules on the array as well.
Flashings that won't void your solar warranty
The single most common way a roof leaks after solar installation is at the mount penetrations, and the single most common way a roof warranty gets voided is with the wrong flashing. We use QuickMount PV flashings or equivalent manufacturer-approved products on every solar attachment — whether the solar is going on now, next year, or a decade from now. These flashings have their own 25-year leak warranty and are pre-approved by GAF, CertainTeed, Owens Corning, and most other major shingle manufacturers, which means installing solar on your new roof doesn't invalidate your shingle manufacturer's warranty. If you already know where the solar array will sit, we can pre-install the flashings during roofing, which saves time and reduces penetrations later.
Ventilation: the detail roofers often get wrong
NJ attics need continuous intake at the soffits and continuous exhaust at the ridge. A roof without proper ventilation runs hotter, shortens shingle life by several years, and can ice-dam in winter. When we tear off a roof, we inspect the soffit venting (often blocked by decades of insulation) and size the ridge vent to match. We avoid mixing ridge vents with gable fans or powered vents, which short-circuit airflow and undercut the passive ventilation you just paid to install. This isn't a solar-specific concern, but it matters for homes with solar because an overheated attic reduces module output underneath it — and because if we get the roof right once, we don't want to be back fixing it early.
Combining roof replacement with solar removal and reinstall
If you already have solar on your roof and you've realized the shingles need to go, this is the most complex version of the project — but it's also one we do regularly. The sequence is: remove the array and store it, strip the roof to the deck, inspect and repair decking, install underlayment and shingles with QuickMount-compatible flashings pre-installed where the array will return, then reinstall the array with new attachment points and updated wiring where needed. We can usually complete the full cycle in four to six working days for a typical residential array, weather permitting. Doing the two projects together avoids the awkward middle state where panels sit on a tarp for a month waiting for a separate roofing contractor's schedule.
