Three-tab shingles
Three-tab shingles have a flatter, simpler profile and are easy to repair with matching stock when the product is known. Their tabs crease more readily in wind, so the seal strip is checked at every repair.
Asphalt shingle roofing and replacement, with the deck, ventilation and ice barrier checked as part of the same job.
Fastest: call (833) 751-2102. Or send this and we call you back.
Asphalt shingle roofing covers a roof with shingles laid over underlayment and a sound deck, and includes repairs to the existing covering. Shingles weather from below as well as above, so the deck, eave and ventilation are checked. A full replacement is permit work in Worcester.
Asphalt shingles are the covering most often replaced in Worcester. Each shingle is a mat coated with asphalt and finished with granules, held by nails and a seal strip. Shingles in service face intense heat, thermal cycling, ultraviolet light and freeze-thaw events, and the National Institute of Standards and Technology reports that those exposures can compromise how shingles take direct mechanical loads.
Winter does most of the damage here. Snow melts on a warm deck, refreezes at the cold eave and pushes water back under the lowest courses, while the freeze-thaw cycle works the nails and seals open and shut. A replacement is therefore more than a new top layer. The deck, the eave, the ventilation and the attic air decide how long the covering lasts.
A technician checks each of those before recommending a scope. Call (833) 751-2102 to ask whether a roof is a repair or a replacement candidate, and the reasons will be written down before any work begins.
Do not climb a steep roof alone, and do not work on any roof when it is wet, icy or windy. Shingles soften in hot sun and tear easily. Do not use a heat gun or open flame on shingles or the ice barrier, since the adhesive and the membrane can catch fire. Leave tear-off, nailing and flashing to a crew that can work the slope safely.
Three-tab shingles have a flatter, simpler profile and are easy to repair with matching stock when the product is known. Their tabs crease more readily in wind, so the seal strip is checked at every repair.
Laminated shingles have a thicker, layered profile that hides the nail line and suits a steeper main roof. They weigh more than three-tab shingles, so the decking is checked before a tear-off. A visible slope in a local historic district may need review first.
A steep main roof often joins a low rear section or an ell. Shingles generally suit the steep part, while the low section usually needs a different covering and flashing detail, covered on the flat-roof page.
Most asphalt shingle roofing calls are scheduled the same day when a technician is free, and you approve the price before any work starts.
A full replacement is permit work under the state code. Minor roof repair may or may not be, depending on the building official's view of the job.
The Department of Inspectional Services requires permits for work that alters or repairs a structure under 780 CMR, and it encourages online filing. The state's table lists replacement roofing as needing a Construction Supervisor License holder, Home Improvement Contractor registration and a building permit, and the table is guidance only. A paper application carries a $50 processing fee, and an inspector checks the finished work.
Two credentials apply. The contractor who signs needs Home Improvement Contractor registration, and the permit is usually pulled by a Construction Supervisor License holder. The two need not be the same person.
Home Improvement Contractor registration has no exam and includes a one-time Guaranty Fund payment. Without it, the homeowner is not protected by the Home Improvement Contractor Law. The Construction Supervisor License is examined. A specialty roof-covering license excludes replacing more than 25 percent of sheathing or rafters, so ask which credential applies before anything is signed.
Probably not. An older state guide says homeowners who pull their own permits are automatically excluded from the Guaranty Fund provisions.
The fund reimburses consumers for unpaid judgments against registered contractors, up to $10,000 as that older guide reports, and only if the contractor was registered when the work was done. Massachusetts requires a written contract for residential work over $1,000, with a detailed scope, a total price and a payment schedule.
Massachusetts requires an ice barrier at the eaves where ice has formed before, and the building inspector confirms the extent for the address. A replacement is the easiest time to install one.
The barrier is a membrane laid under the lowest courses and carried past the exterior wall line. It is not the whole fix. If heat leaks from the living space, snow melts on the deck again, so the attic and ventilation work matter as much. The ice dam page covers the cure in more detail.
Roof area and pitch, the layers already on, the condition of the decking, height and access on a tight lot, the flashing and ventilation, and the permit. The price is explained and approved before work starts.
Area and pitch set the materials and labor, and a roof with many valleys, dormers and ells has more cuts. On a three-decker the crew works three stories up and stages from porches or a boom. Decking is the largest unknown. Soft sheathing is replaced in the affected section, and that part of the scope is set by what is found and written down before work begins.
The technician walks the roof where it is safe, notes the pitch, counts the roof sections and records the layers already on. Pitch and walkability decide how the crew works and whether staging is needed.
Decking is checked from the attic for staining, soft spots and frost on the underside. Attic ventilation and air leaks are noted, because ice dams and deck moisture both start below the roof.
A replacement generally needs a building permit, normally pulled by a Construction Supervisor License holder. The contractor who signs must hold Home Improvement Contractor registration for an owner-occupied building of one to four units, and the written contract is settled before materials arrive.
The old shingles come off down to the deck. The nail line, the flashing at walls, chimneys and valleys, and the drip edge are read, and soft sheathing is replaced in the affected area. Whether an existing layer can stay is decided on the roof, against what the inspector allows.
Where ice has formed at the eaves before, an ice barrier goes down along the lowest edges. Ridge and soffit ventilation are set before the cap goes on, and cracked or bent flashing is replaced rather than reused.
NIST's review describes extreme heat, thermal cycling, UV exposure and freeze-thaw events as the conditions a shingle must survive, and those are the conditions of a central Massachusetts year. Snow that melts and refreezes at the eave puts that cycle on the lowest courses every winter.
A U.S. Department of Energy Building America field test in a cold climate compared unvented shingle roofs under high interior humidity with top-vented roofs. The vented roofs let moisture dry from beneath the shingles, which is why the deck under the shingle is part of how long the roof lasts.
Worcester's three-deckers often carry porch stacks, projecting bays and rear sections that need flashing detail. Four local historic districts require a Certificate of Appropriateness for work on any visible part of a property, so ask the Worcester Historical Commission before choosing a visible shingle style.
Not sure if you're covered? Check your ZIP code.
Repair for shingles that gusts have lifted, creased or torn away, with seals and decking checked before anything is nailed.
Roof repair and replacement on Worcester three-deckers, planned around porches, bays, access and the households below.
Why ice dams form at Worcester eaves, and why air sealing, insulation and ventilation are the real fix.
Full tear-off and new roof covering for Worcester homes, with the permit and contract steps Massachusetts requires.
No lifespan in years is given here, because the sources reviewed did not tie a number to a government or university source for asphalt. A technician judges remaining life from granule loss, curling tabs, brittleness, nail condition and the decking.
NIST's review says repeated freeze-thaw events can compromise how shingles take mechanical loads, so the cycle is hard on them. How quickly a roof wears depends on the attic, the ventilation, the nails and the shingle itself.
Sometimes. Whether an existing layer can stay is up to the building inspector and the condition of the deck. A tear-off lets the technician see and repair the sheathing, so ask for the reasoning in writing.
Replacement generally needs a permit under the state's table and city rules, normally pulled by a Construction Supervisor License holder. The Department of Inspectional Services handles applications, and online filing is encouraged.
Home Improvement Contractor registration is held by the contractor who signs the contract for an owner-occupied building of one to four units, and it has no exam. A Construction Supervisor License is examined and normally pulls the permit. They are separate credentials.
Not for most homeowners. Shingles are slippery when wet, cold or dusty, and soft areas can give way. Check from the ground and look for staining from the attic instead.