Try "ice dam", "financing", "Montclair", "flat roof coating" or "Colombia".
Most New Jersey attics have half the insulation they should, no air sealing and ventilation that was blocked years ago. The result is a cold house in January, a hot upstairs in July, ice dams, condensation and shingles that age early. We insulate, air-seal, ventilate and install radiant barriers as the roofers who see the attic from both sides, so the roof and the attic work together.
Four jobs that only work together, and the one your attic is missing.
Top plates, wiring and plumbing penetrations, the attic hatch, recessed lights, chimney chases: sealed with foam and fire-rated sealant.
Signs and fixes →
Old, compressed or wet insulation removed where needed; new insulation to the depth the code and the climate call for.
Insulation types →
A reflective foil barrier under the rafters that keeps the attic, and the ductwork in it, cooler in July.
Radiant barrier →
Baffles so the insulation does not block the vents; balanced airflow that stops ice dams and condensation.
Soffit and ventilation →Six things we see most in New Jersey attics, and the honest answer for each.
Usually: heat leaking into the attic melts the snow, which refreezes at the cold eave. An insulation and air-sealing problem, not a gutter problem.
We do: air-seal, insulate to depth, open the soffit intake with baffles, vent the ridge.
Usually: thin insulation and a roof deck radiating heat down onto it.
We do: insulation to R-49, a radiant barrier under the rafters, ventilation balanced.
Usually: warm, moist house air getting into a cold, unventilated attic; bathroom fans venting into it.
We do: seal the ceiling, duct the fans outside, restore the ventilation, replace any mouldy sheathing.
Usually: decades of settling, or insulation that got wet from a roof leak.
We do: remove what is wet or contaminated, top up or replace to the right depth.
Usually: conditioned air going straight through the ceiling and ducts in a 140-degree attic.
We do: air-seal the ceiling plane, insulate the ducts and the attic, radiant barrier over the ducts.
Usually: squirrels or raccoons in through the soffit, nesting in the insulation.
We do: close the entry with the soffit repair, remove and replace the contaminated insulation, sanitize.
New Jersey's climate zone calls for R-49 in the attic floor. How you get there depends on the attic, the budget and what is already up there.
Best for: topping up or replacing insulation on an open attic floor; the most cost-effective R-value.
Why: fills around joists, wiring and odd shapes with no gaps; cellulose is dense and treated against fire and pests; fiberglass does not settle.
R-49 at 14–18 inchesBest for: knee walls, sloped ceilings, rim joists and attics that are also storage.
Why: fitted between the framing, faced or unfaced as the vapour control needs; mineral wool adds fire and sound resistance.
R-30 to R-38 per layerBest for: finished attics, cathedral ceilings and attics with ductwork, where the roof deck becomes the insulated boundary.
Why: closed-cell foam insulates and air-seals in one pass with the highest R per inch; brings the attic inside the envelope.
R-6.5 per inch, closed cellBest for: summer heat: attics with ducts in them, hot upstairs rooms, dark roofs.
Why: foil stapled under the rafters reflects most of the radiant heat from the roof deck, so the attic and the ducts run cooler. It adds no R-value and does not replace insulation.
Cuts attic temperature noticeablyBest for: every attic. Insulation does not stop air; sealing does.
Why: foam and caulk at top plates, penetrations, chases and the hatch; fire-rated sealant at chimneys and flues; covers on recessed lights. Often the biggest single saving.
Done first, every timeBest for: every vented attic. Insulation without airflow means moisture.
Why: baffles at every rafter bay keep the soffit intake open; ridge or roof vents give the air somewhere to go; bathroom and dryer fans ducted outside.
1 sq ft per 300 sq ft of attic
On a July afternoon a dark roof deck reaches 150 degrees and radiates that heat down onto the insulation and the ducts. A radiant barrier reflects most of it back out before it gets there.
Airflow first, then heat reflection, then fresh insulation: the three layers of a cool, dry, efficient attic.
Best for: Poor air circulation and attic hot spots
Best for: Properties that want to cut the load on the HVAC system and lower cooling costs
Best for: Older properties with outdated insulation, or owners who want maximum efficiency and indoor air quality
No prices on this page on purpose: every package is scoped and priced after the inspection, and the exact terms go into your written proposal. Bring any other written proposal: same scope, same warranty, we beat it.
Request a Free Estimate →An insulation company fills the attic and leaves. We know what blocked soffit vents, an unducted bathroom fan and a wet corner of sheathing do to a roof, because we replace those roofs. Four things we do on every insulation job that most crews do not:
And a share of this job funds a roof for a family in need, through our One4One program.
Real jobs from our records. Tap a pin for the details; the documented ones have their own page with every photo.
Case studyOakridge Rd, Verona, NJ 07044
Case studyRidgewood Rd, Maplewood, NJ 07040
Case study341 Linden Avenue, Bogota, NJ 07603
23rd St, Union City, NJ
Sherman Ave, Jersey City, NJ 07307
Harrison Ave, Waldwick, NJ 07463
Residential exterior improvements: 38 projects → Commercial exterior improvements: 21 projects →
Attic, roof deck, insulation depth, air leaks, ventilation and moisture checked, with thermal imaging where it helps. Free, with a written report and photos.
Air sealing, the insulation type and target R-value, radiant barrier if it earns its place, ventilation fixes, the warranty and the price, in writing.
Old or wet insulation out where needed, ceiling sealed, baffles in, insulation to depth, barrier stapled, fans ducted. Most attics in a day.
Depth markers and photos of the finished attic, the hatch insulated and weatherstripped, warranties in writing and the paperwork for any utility rebate.
Attic area, how much old insulation has to come out, the type and depth, and how much sealing and ventilation work is involved decide the price. These are honest ranges from our own jobs; your written estimate is free and exact.
Attic insulation and air sealing may qualify for New Jersey utility energy-efficiency programmes and the federal energy-efficiency tax credit; we provide the documentation. Residential financing through Service Finance Company for qualified applicants.
Financing options →
Rebate programmes change; we confirm what applies when we quote.
What New Jersey homeowners ask us before they sign.
Have a question not listed here? Call (201) 267-3000 or request an estimate.
R-49, which is about 14 to 18 inches of blown-in insulation depending on the material. If you can see the tops of the joists, you have roughly a third of that.
No. It reflects summer heat off the roof deck and keeps the attic cooler; it adds no R-value. It belongs under the rafters, above insulation that is already adequate, and it earns its place mainly in attics with ductwork or under dark roofs.
Because insulation slows heat but does not stop air, and the warm, moist air leaking through the ceiling carries most of the heat and all of the moisture. The holes are only reachable before the insulation covers them.
Only if it blocks the soffit vents. Done with baffles and balanced ventilation, more insulation is what prevents ice dams: the attic stays cold, the snow stays frozen.
Yes, with spray foam at the roof deck or dense-pack in the rafter bays with proper venting, which brings the attic inside the insulated envelope. It is also the right time to add a radiant barrier and to fix the roof-deck ventilation.
Only when it is wet, mouldy, contaminated by animals or so compressed it is doing nothing. Dry, clean insulation is topped up over, after air sealing.
Homes across Northern and Central New Jersey, including Bergen, Hudson, Essex, Passaic, Morris, Union, Middlesex, Somerset, Hunterdon and Sussex counties.
"Roof4Roof was very professional, the employees were courteous and respectful with my property. The job was completed on time. All debris was cleaned and removed from the job site. We would not hesitate to recommend Roof4Roof."
"Good quality and good service at a great price. Special thanks go to John, who provided a lot of useful suggestions and made sure the workers did a good job."
"Work was done on time as promised. The staff was very polite and professional. Work area was left very clean and neat. I had no problems with this project, they handled everything."
A share of every job funds a roof, a repair or a home for a family in need, in New Jersey and abroad: $1.5M+ donated and 1,300+ families helped since 2010.
How One4One works →
An attic inspection with thermal imaging where it helps, a written report with photos, and a proposal with the sealing, the insulation, the ventilation and the price spelled out.
