Insulation
Insulation and cover board to improve drainage and efficiency.
Flat Roofing
Modified Bitumen Roofing Maplewood, NJ
A local roofing contractor in Maplewood can handle modified bitumen, whether the sheets are torched, self-adhered or set in cold adhesive, and match the method to the building and its fire risk. One call to (973) 858-1830 reaches a nearby flat roof pro.
Modified bitumen, often shortened to mod bit, is the modern descendant of the old tar and gravel roof, with polymers added so the asphalt stays flexible. Sheets come in SBS, a rubber-modified type that handles cold well, and APP, a plastic-modified type made for torching. With two or three plies, the finished roof is thick and puncture resistant.
How the sheets are applied matters as much as which sheets are used. Torch-applied sheets fuse tightly at the laps, though the open flame demands care around wood framing, insulation and roof edges. For homes and buildings where open flame is a concern, self-adhered or cold-process sheets are the usual answer.
A few details help the roofer plan. Note any blisters or bubbles, cracking in the cap sheet, bare spots where granules have washed off and laps that are lifting at the edges. Also mention any past coatings or cement patches, which the roofer will need to deal with.
Modified Bitumen Roofing is often paired with flat roof replacement and flat roof repair, depending on the cause.
Need modified bitumen roofing in Maplewood? Call (973) 858-1830 and describe the problem to a roofer who works in Maplewood.
Call nowThe process
What a mod bit roof job involves
Each layer of a mod bit roof has its own job.
Start with the deck
The roofer checks the deck, counts existing layers and looks for wet insulation, often with a core cut. Those findings decide whether the old roof must come off.
Tear off old roofing
The deck is stripped, repaired and cleaned so the new layers lie flat. Rigid insulation and tapered crickets go down next to improve drainage.
Put down the first layer
A base sheet is fastened to wood decks or adhered to insulation and cover board. Its laps are staggered from the cap sheet laps to avoid weak lines.
Install the cap
The granulated cap sheet is torched, set in cold adhesive or self-adhered over the base. On torched laps, a steady bleed-out of asphalt at the edge shows a good seal.
Detail the edges
Walls, curbs and penetrations get reinforced flashing plies that run up and are capped with metal. Edge metal, drain flashing and pipe flashings complete the system.
Keep a fire watch
After torch work, a fire watch confirms no hidden heat remains in insulation or wood. A final walk checks laps, flashings and drainage.
What is included
What a mod bit roof includes
Edge metal
New edge metal and drain flashings so water leaves the roof where it should.
Base ply
The first ply of polymer-modified asphalt laid with laps offset from the cap.
Wall flashing
Reinforced plies at every wall and curb where most flat roof leaks start.
Cap sheet
A granulated cap sheet in white or a dark color to shield the asphalt from sun.
Related service
Torch Down Roof Repair Maplewood, NJ
Torch down roof repair fixes the leaks that develop in torch-applied modified bitumen: open laps, blisters, splits and failed wall flashing. For blisters and splits, the damaged section is opened up, dried and covered with a larger patch. Loose granules are embedded in the bleed-out so the patch does not weather quickly.
Repairs near walls, vents or wood trim in Maplewood call for careful torch handling. Near combustible materials, a cold-process or peel-and-stick patch can replace torching. Either way, the roofer should stay on fire watch after any flame work.
Related service
Built Up Roofing Maplewood, NJ
Built up roofing stacks three or more plies of felt and bitumen into a thick, heavy membrane, finished with a layer of gravel. The gravel protects the bitumen from sun and foot traffic, so bare spots where it has blown or washed away are a common source of trouble. They are durable, but they show their age at the flashings and in blistered or bare areas.
For Maplewood buildings with built up roofs, patching is done with felts or mod bit after the gravel is cleared. Because these roofs are heavy, recovering over one can strain the structure, and many owners choose a tear-off when the time comes. Many are replaced with modified bitumen, TPO or another single-ply system.
Local help
Modified Bitumen Roofing Near Me
In Maplewood, modified bitumen is common on low-slope roofs that see foot traffic or need a tough surface. From Maplewood out to Vauxhall, Union, Springfield and Short Hills, roofs range from aging two-ply systems with worn granules to newer self-adhered roofs on additions, so a check of laps and flashings every year or two catches small trouble early.
Searching for modified bitumen roofing near me from Maplewood or Vauxhall, Union, Springfield and Short Hills? Call (973) 858-1830 to talk to a roofer who works in your part of town.
What the local climate does to a roof
Cold winters bring snow, ice and a long stretch of freezing nights. When warm attic air melts the snow, the meltwater runs down and freezes again at the eaves, which is how ice dams form and back water up under the shingles. Strong coastal storms push rain into every weak spot at the flashing and valleys. Most homeowners in Maplewood, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why not wait
Drier ceilings
Small roof problems caught early usually stay small repairs.
Local knowledge
Local roofers see the same roofs and storm damage across Maplewood and nearby towns.
Know what happens next
Ask your questions before you agree to anything.
Common questions about modified bitumen roofing
What is the difference between modified bitumen and built up roofing?
Both use asphalt, but the plies and surfacing differ. Built up roofing uses many plies of felt mopped with hot asphalt or coal tar and is topped with gravel, while modified bitumen uses fewer, thicker polymer-modified sheets with a granulated cap. Mod bit is lighter and more flexible, which is why it has replaced built up roofing on many buildings.
Should I coat my modified bitumen roof?
Modified bitumen takes coatings well when the cap sheet is sound and the roof drains. Loose granules are cleaned off, blisters and open laps are repaired and a primer may be needed to keep asphalt from bleeding through. White coatings reflect sun, which helps the asphalt last.
Is torch-down roofing safe?
Fire risk with torch-down comes from the flame during installation, not the finished roof. Good crews fasten the base sheet on wood decks, keep the flame away from edges and gaps and stay on fire watch afterward. Self-adhered sheets give the same kind of roof without a torch.
How long does a modified bitumen roof last?
Most mod bit roofs last somewhere between 15 and 25 years with reasonable care. Drainage and the condition of the cap sheet granules make the biggest difference. Some owners extend the roof with a coating once granules start to thin.
Do I need a tear-off for a new mod bit roof?
The core cut tells the roofer. A single existing roof that is dry and well attached can sometimes be recovered. If there are already two roofs, blistering throughout or wet insulation, a tear-off is the right move.
More questions? Call (973) 858-1830
Other services that may help
Flat Roof Replacement
Replacing old built-up, torch-down, EPDM or TPO roofs with a new system built to drain, and new flashing at every wall, curb and drain.
Learn moreFlat Roof Repair
Fixing open seams, blisters, splits, ponding and failed flashing on flat and low slope roofs, after the real leak source is found, not guessed.
Learn moreTPO Roofing
Heat-welded TPO membrane for flat and low-slope roofs, with seams welded into one watertight sheet.
Learn moreCommercial Roof Replacement
Tear-off or recover of aging commercial roofs with new insulation and drainage, planned around rooftop units and drains.
Learn more
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