Cap sheet
A granulated cap sheet in white or a dark color that takes foot traffic well.
Flat Roofing
Modified Bitumen Roofing Wharton, NJ
A local roofing contractor in Wharton can handle modified bitumen, whether the sheets are torched, self-adhered or set in cold adhesive, which holds up well to foot traffic and patches easily. One call to (862) 430-1003 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. SBS sheets stay flexible in the cold and can be torched, mopped, cold-applied or self-adhered, while APP sheets are almost always torched. The layers give it toughness, which is why it holds up well on roofs that see foot traffic.
There are several ways to put down mod bit, and each suits different buildings. Torching gives tight, fused laps, but the flame is a fire risk near wood decks, parapets and anything combustible. For homes and buildings where open flame is a concern, self-adhered or cold-process sheets are the usual answer.
Mod bit fails in predictable ways, which helps when you call. 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. Mention whether the roof has been coated or patched with roofing cement, since that changes how new material will stick.
Modified Bitumen Roofing is often paired with flat roof replacement and flat roof repair, depending on the cause.
Need modified bitumen roofing in Wharton? Call (862) 430-1003 to talk to a local roofer.
Call nowThe process
What a mod bit roof job involves
Here is how a typical modified bitumen job runs.
Start with the deck
Before planning, the roofer cuts a small sample to see what is underneath and checks for soft decking. With two roofs already in place or wet insulation present, a tear-off is the norm.
Ready the substrate
The deck is stripped, repaired and cleaned so the new layers lie flat. Where the roof ponds, tapered insulation is added to move water off.
Lay the base sheet
The first ply is nailed or mechanically fastened on wood, or set in adhesive over insulation. The roofer offsets the laps so no seam sits directly over another.
Install the cap
The top ply goes on with the chosen method, granules facing up for sun protection. At torched laps, a small bead of melted asphalt should show along the edge, a sign the seam has fused.
Flash the walls
Parapets and curbs are flashed with mod bit plies, then capped or counterflashed with metal. Edge metal, drain flashing and pipe flashings complete the system.
Keep a fire watch
If any torching was done, the crew stays on watch after the flame goes off to make sure nothing is smoldering. A final walk checks laps, flashings and drainage.
What is included
Parts of a modified bitumen roof
Base flashing
Flashing that runs up the wall and under metal fastened at the top.
Base ply
A fastened or adhered base layer over a clean, sound deck.
Edge metal
Gravel stop or drip edge at the perimeter set into the membrane plies.
Tapered insulation
Rigid boards with tapered crickets to improve drainage and efficiency.
Related service
Torch Down Roof Repair Wharton, NJ
Repairing a torch-down roof usually means cutting out the bad section and fusing new modified bitumen over it. Blisters are cut open, dried, resealed and covered with a patch of new cap sheet that laps well beyond the cut. Fresh granules over the hot asphalt help protect the repair.
Torch work on an occupied home in Wharton needs extra care, especially near wood fascia, siding and attic vents. Many roofers switch to self-adhered or cold-applied patches in tight spots where an open flame is a risk. After torching, a watch period for smoldering material is standard practice.
Related service
Built Up Roofing Wharton, NJ
A built up roof is made of several plies of felt mopped together with hot asphalt or coal tar pitch, then flood-coated and covered with gravel. When the gravel thins out, the asphalt below dries, cracks and blisters. These roofs can last a long time, but blisters, splits and failed flashings show up as they age.
Most built up roof repairs in Wharton start by clearing the gravel, then patching with new plies and setting gravel back in place. When a built up roof reaches the end of its life, its weight and the gravel usually mean a tear-off before the new roof goes on. Many are replaced with modified bitumen, TPO or another single-ply system.
Local help
Modified Bitumen Roofing Near Me
Around Wharton, mod bit replaced a lot of old tar and gravel roofs years ago, and many of those are now due for work. Across Wharton and nearby towns like Dover, Rockaway, Mount Arlington and Landing, older buildings may still have built-up roofs under a layer of mod bit, which is why the core cut matters, so a check of laps and flashings every year or two catches small trouble early.
Need modified bitumen roofing around Wharton? Call (862) 430-1003 for a Wharton roofer who serves the towns around it too.
Roofs in this climate
Cold winters bring snow, ice and a long stretch of freezing nights. Heat escaping from the attic melts snow on the upper roof, and the water refreezes at the colder 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 Wharton, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why not wait
Less damage
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Roofers who know Wharton
Roofers in Wharton know the roof types and weather wear common in local homes.
Clear next steps
Ask the roofer about the cause, the options and the estimate before work starts.
Modified Bitumen Roofing questions
How does mod bit compare to tar and gravel?
Both are asphalt roofs built in layers, but they are made differently. Mod bit replaces the many felts of a built up roof with a few thick polymer sheets, and it skips the gravel. Mod bit is often preferred today for its flexibility and lower weight.
What is the lifespan of a torch-down roof?
A two-ply modified bitumen roof commonly lasts around 15 to 25 years. Good drainage, intact granules and sound flashings push it toward the long end. Some owners extend the roof with a coating once granules start to thin.
Are torch-applied roofs a fire risk?
The open flame is the main concern with torch-down roofing. Experienced roofers avoid torching directly on wood decks or near combustible edges, fasten the base sheet over wood instead of torching it, and keep a fire watch after the work. On homes, self-adhered or cold-applied modified bitumen avoids the flame entirely.
Do I need a tear-off for a new mod bit roof?
What is already up there sets the answer. A single existing roof that is dry and well attached can sometimes be recovered. Two existing roofs, wet insulation or widespread blistering call for a full tear-off.
Can a mod bit roof be coated?
Coating an aging cap sheet is a common way to add years to a mod bit roof. Loose granules are cleaned off, blisters and open laps are repaired and a primer may be needed to keep asphalt from bleeding through. A white coating also lowers roof surface temperatures in summer.
More questions? Call (862) 430-1003
Often needed together
Flat Roof Replacement
Full replacement of failing flat roofs, with a moisture survey deciding tear-off or recover, and new flashing at every wall, curb and drain.
Learn moreFlat Roof Repair
Repairs for leaking flat roofs, from punctures and seams to clogged drains and wet insulation, with the patch made from material that bonds to what is there.
Learn moreTPO Roofing
TPO membrane roofs installed over new insulation or in place of a worn flat roof, sized to the deck, the drains and the way the roof is used.
Learn moreCommercial Roof Replacement
Full replacement of membrane, built-up and metal roofs on commercial buildings, planned around rooftop units and drains.
Learn more
Looking for something else?
See all roofing servicesTalk to a Wharton roofer about modified bitumen roofing
Call (862) 430-1003 to talk to a roofer serving Wharton, NJ.