Three-tab shingles
A flat, uniform shingle that costs less. Many older roofs are three-tab, and published guides place them at the lower end of the price range, though no price is printed here.
Serving Warren County
Asphalt Shingle Roofing in Washington: What Goes Under the Shingles
How an asphalt shingle roof is built, what to ask about layers and underlayment, and how it handles Warren County winters.
- Roof repair and full replacement
- Ice dams, leaks and storm damage
- Connected to an independent local roofer
Get a fast quote
Fastest: call (833) 751-2102. Or send this and we call you back.
Asphalt Shingles
Asphalt Shingle Roofing: what it covers
Quick answer
Asphalt shingles are the usual covering on single-family houses in northwestern New Jersey. Washington Roofing connects you with an independent local roofer who inspects, writes a scope and installs or repairs them. The shingles are the visible part; the deck, underlayment, flashing and ventilation underneath decide how the roof performs.
Walk any street in Washington, Hackettstown or Phillipsburg and most of the pitched roofs you see are asphalt shingle. It is the covering published New Jersey cost guides tend to centre on, and the one roofers quote first. That familiarity can hide how much the result depends on work you will never see once the job is finished.
A shingle roof is a system. A deck of boards or sheets carries the load. Underlayment sits over it as a second line of defence. Metal drip edge guards the eaves and rakes, flashing seals the valleys and the joints, and shingles overlap in courses so water runs from one to the next. Vents in the attic keep that whole assembly dry and cool, which is why attic ventilation belongs in any conversation about shingles.
Washington Roofing is a call line that connects you with an independent local roofer, who does the work. You can call (833) 751-2102 to describe your roof, whether you are planning a new one, choosing between shingle types or trying to decide if a repair is worth doing. The roofer arranges the visit and gives you a written scope.
- Service area
- Washington & Warren County
- Availability
- Call to reach a local roofer
- Phone
- (833) 751-2102
Warning signs
Signs you need asphalt shingle roofing
Shingle roofs become slick when wet, frosted or covered with leaves, and the granules act like ball bearings underfoot. Stay off the roof and let the roofer work.
- Granules collecting in gutters or in the splash zone under downspouts, leaving darker, smoother patches on the shingles
- Corners that curl up or the middle of each tab that cups, so the surface is no longer flat
- Cracks running across tabs, especially on slopes that face the afternoon sun
- Nails that have backed out and lifted the shingle above them, visible as small bumps
- Streaks or dark patches of algae or moss, mostly on shaded north slopes
- Shingles blown off after a wind event, with exposed black underlayment showing
- A roof that has been patched many times, with new and old shingles side by side
Cost
How much does asphalt shingle roofing cost in Washington?
No dollar figure is printed here. Published New Jersey guides vary widely and none is specific to Washington or Warren County, so treat any single number with caution. These are the factors that move an asphalt shingle quote.
| Job | Typical range | What it includes |
|---|---|---|
| Roof area and pitch | Measured on site | Roofers price by the roofing square, so area and steepness drive material and labor |
| Shingle grade | Chosen from the roofer's options | Basic flat-tab and thicker architectural shingles differ in cost |
| Tear-off layers | Counted at inspection | Each extra layer adds labor and disposal |
| Decking repairs | Found once the roof is off | Replacing bad boards is billed separately in most scopes |
| Flashing, valleys and vents | Set by the roof plan | More roof planes and penetrations mean more flashing work |
| Permit and disposal | Itemized by the roofer | Ask whether these are in the quote |
Your exact price is confirmed on site before any work starts.
Options
Types and options for asphalt shingle roofing
Architectural (dimensional) shingles
Thicker, with a layered look, and common on newer installs. They cost more per square than three-tab, and roofers often recommend them for visible slopes.
Shingle over an old layer or full tear-off
A second layer can sometimes go over the first, but it hides the deck and adds weight. A tear-off shows what is underneath. The page on roof replacement compares them.
One call and it gets handled.
Most asphalt shingle roofing calls are scheduled the same day when a technician is free, and you approve the price before any work starts.
What is the difference between three-tab and architectural shingles?
Three-tab shingles are flat and uniform, with three equal tabs in each strip. Architectural shingles are thicker and made of layered pieces that give the roof a textured, dimensional look. Architectural is usually the more expensive of the two and is often the roofer's first suggestion.
Both are asphalt-based, and both depend on correct installation more than on the product alone. A good shingle on a poorly vented attic or with poorly sealed flashing will not give you the result you are paying for.
Ask which line the roofer recommends and why, what the manufacturer requires for installation and what the written scope says about substitutions if a product is not available.
Why does the underlayment matter so much?
Underlayment is the second barrier under the shingles. If wind drives rain beneath a shingle or an ice dam pushes meltwater uphill, the underlayment keeps it from reaching the deck. Where it ends and what goes at the eaves are worth asking about.
New Jersey's ice-barrier rule in Bulletin 07-3 applies only where the January mean temperature is 25 F or lower, which the bulletin says is Sussex County only. That is a 2007 document, revised in 2015, so confirm the current edition. In Warren County an ice and water membrane at the eaves is not required by that rule, but it is good practice in a county with 30 to 40 inches of snow a year.
More detail on ice and eaves is on the page for ice dam removal and prevention.
Can new shingles go over the old ones?
Sometimes a second layer is allowed, but IRC R908.3 does not allow a third roofing layer over two, which forces a tear-off. An overlay hides the deck from inspection and adds weight, so many roofers prefer a tear-off when the roof is old.
Overlays can save time and disposal cost. They also trap any problems under the new layer, and a roof that already leaks is poorly suited to one.
Ask the roofer to explain which they recommend for your roof and why, and make sure the written scope states the choice.
How do freeze-thaw cycles affect shingles?
Water that gets into small cracks freezes, expands and widens them, and the shingle surface shrinks and swells with temperature. Over many winters this speeds granule loss, cracking and curling, so Warren County roofs are tested harder than those in milder climates.
Shaded north slopes stay damp, which suits moss and algae, while south slopes take more heat and sun. A roof can age unevenly, and one slope may need work years before another.
A roofer who looks at each slope separately gives you more useful information than one who describes the roof as a single block.
What should be in the written scope for a shingle roof?
A written scope should name the shingle product, the number of layers being removed, how decking repairs are handled and billed, the underlayment and eave protection, each flashing detail, ventilation work, the permit, and cleanup. If any of these is missing, ask for it before you sign.
Quotes that give one number for a roof and nothing else make comparison impossible. Two roofers can quote the same roof at very different figures because one includes new flashing and the other reuses the old, or because one allows for a few boards and the other for none.
Line the scopes up item by item. The cheapest quote is not always the one that leaves things out, but you cannot tell until you compare. A roofer who walks you through the scope on the roof or at the kitchen table is showing you how the work will run.
Our process
How our asphalt shingle roofing visit works
Describe the roof when you call
Give the town, the age of the house if you know it, and what you see. If a previous roofer left paperwork on the shingles, mention it.
Inspection and layer count
The roofer checks how many layers are on the roof, the condition of each slope and whether the deck is sound. The count matters because the code does not allow a third layer over two.
Choosing the shingle
Roofers typically offer a basic flat-tab shingle and a thicker architectural shingle that has a dimensional look. Ask what the difference is in the written scope, who makes it and what the manufacturer's installation rules require.
Installation from the bottom up
Drip edge and underlayment go on first, followed by a starter strip, then courses of shingles from the eave upward, with new flashing at every joint and a ridge cap at the top.
Ventilation and cleanup
The roofer checks that the attic can breathe, adds or fixes vents where needed and removes debris. A magnet over the lawn and driveway finds stray nails.
Warren County
Why asphalt shingle roofing is different in Warren County and the Delaware Valley
Roughly 45 inches of precipitation and 30 to 40 inches of snow a year fall in Warren County, per the county statistics page citing the State Climatologist, and asphalt shingle roofs here spend a long stretch of each year wet, frozen or being thawed.
In ZIP 07882, 1,572 of 6,233 housing units date from 1939 or earlier, and many of those houses have been re-roofed, sometimes more than once. An older house may therefore already carry layers of shingles, which affects whether a tear-off is required.
Easton and Bangor in Pennsylvania use the same shingles, but Pennsylvania roofers register with the Attorney General under the Home Improvement Consumer Protection Act once annual work reaches $5,000, and contracts over $500 need statutory terms and the registration number.
Wind can lift older shingles whose sealant strips have dried out, and this is a common reason for calls after a storm. A March 2026 severe thunderstorm warning for southern Warren County named roofs among the things that could be damaged, which is a reminder that wind is a regular visitor, though it is a warning, not a record of damage in any specific town.
Where we work
Asphalt Shingle Roofing across Warren County
- Asphalt Shingles in Washington
- Asphalt Shingles in Changewater
- Asphalt Shingles in Broadway
- Asphalt Shingles in Oxford
- Asphalt Shingles in Port Murray
- Asphalt Shingles in Asbury
- Asphalt Shingles in Glen Gardner
- Asphalt Shingles in Hampton
- Asphalt Shingles in Belvidere
- Asphalt Shingles in Buttzville
- Asphalt Shingles in Great Meadows
- Asphalt Shingles in Stewartsville
- Asphalt Shingles in High Bridge
- Asphalt Shingles in Vienna
- Asphalt Shingles in Phillipsburg
- Asphalt Shingles in Clinton
- Asphalt Shingles in Bloomsbury
- Asphalt Shingles in Califon
- Asphalt Shingles in Martins Creek
- Asphalt Shingles in Schooleys Mountain
- Asphalt Shingles in Delaware
- Asphalt Shingles in Hackettstown
- Asphalt Shingles in Annandale
- Asphalt Shingles in Long Valley
- Asphalt Shingles in Ackermanville
- Asphalt Shingles in Pittstown
- Asphalt Shingles in Hope
- Asphalt Shingles in Lebanon
- Asphalt Shingles in Bangor
- Asphalt Shingles in Easton
Not sure if you're covered? Check your ZIP code.
Related
Related services
Roof Replacement
Full tear-offs and re-roofs for older Warren County homes, with decking, flashing and permit questions settled in a written scope.
Roof Repair
Targeted repairs to valleys, chimney joints, vents and loose shingles on Warren County homes, without a replacement you do not need.
Attic Ventilation
How attic ventilation, insulation and air sealing work together to limit ice dams and moisture in a snowy county.
Guides
Read before you book
What Does a Roof Replacement Cost in Washington, NJ? What Moves the Quote
A roof replacement quote in Washington depends on roof area and pitch, the number of layers to remove, decking found rotten at tear-off, flashing and valley detail, the material and the permit.
FAQ
Asphalt Shingle Roofing FAQs
How do I know how many layers are on my roof?
Look at the edge of the roof from a ladder only if you can do so safely, or ask the roofer. Where shingles end at the eave, a second layer shows as a thicker edge. The roofer can confirm it.
Are all asphalt shingles the same?
No. They differ in thickness, composition and how they are installed. Ask the roofer which product is quoted and what the manufacturer requires for installation.
Will new shingles fix my ice dams?
No. Ice dams come from heat leaking into the attic and poor ventilation. New shingles do not change that, although ice protection at the eaves can limit leaks. See ice dam removal and prevention.
Does the color matter?
Mostly for appearance. Dark shingles absorb more heat than light ones. Some town or historic review boards have views on appearance, so ask the construction office if you are in a historic area.
Is a manufacturer warranty included?
This line makes no warranty claims. Ask the roofer in writing what warranty comes with the product and what comes with the labor, and who is responsible for each.
Can I choose my own roofer's shingle?
Yes. The scope you agree with the roofer names the product, and you can ask for alternatives. Make sure any change is written down.