Edge metal
New edge metal and drain flashings to finish the system cleanly.
Flat Roofing
Modified Bitumen Roofing Kenilworth, NJ
A roofer in Kenilworth can install, repair or replace a modified bitumen roof, the layered asphalt membrane often called torch-down, which holds up well to foot traffic and patches easily. Call (908) 613-5001 to reach a local roofer.
A modified bitumen roof is built from rolls of polymer-modified asphalt, typically a smooth base sheet under a cap sheet surfaced with granules. Sheets come in SBS, a rubber-modified type that handles cold well, and APP, a plastic-modified type made for torching. 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. Torch-down uses an open flame to melt the back of the sheet onto the layer below, which makes strong laps but calls for strict fire safety near wood and insulation. For homes and buildings where open flame is a concern, self-adhered or cold-process sheets are the usual answer.
Knowing the signs makes the first conversation more useful. Look for blisters, splits, granule loss and seams that curl up at the edge, and note where water stands after rain. 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.
Looking for Kenilworth modified bitumen roofing? Call (908) 613-5001 to reach a nearby roofing contractor.
Call nowThe process
How a modified bitumen roof is installed
A mod bit roof goes on in layers, starting with a sound base.
Inspect the roof
A core cut and a walk of the roof show how many layers exist and whether moisture is trapped. Those findings decide whether the old roof must come off.
Tear off old roofing
Old roofing is removed where needed, rotted decking is replaced and the surface is swept clean. Where the roof ponds, tapered insulation is added to move water off.
Install the base ply
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. On torched laps, a steady bleed-out of asphalt at the edge shows a good seal.
Flash the details
Base flashing runs up walls and parapets in two plies and is fastened at the top under metal counterflashing or a termination bar. New drip edge or gravel stop and properly set drain flashings finish the edges.
Final check
After torch work, a fire watch confirms no hidden heat remains in insulation or wood. The last step is a full walk to confirm laps and flashings are sealed.
What is included
Parts of a modified bitumen roof
Tapered insulation
Rigid boards with tapered crickets to improve drainage and efficiency.
Base flashing
Flashing that runs up the wall and under metal fastened at the top.
Base ply
The first ply of polymer-modified asphalt over a clean, sound deck.
Cap sheet
A top ply surfaced with mineral granules that takes foot traffic well.
Related service
Torch Down Roof Repair Kenilworth, NJ
On a torch-down roof, most repairs involve resealing laps, cutting out blisters and adding new plies over damaged areas. For blisters and splits, the damaged section is opened up, dried and covered with a larger patch. Granules are pressed into any exposed asphalt so the patch is protected from sun.
In Kenilworth, many torch-down repairs sit close to wood framing, so fire safety is part of every job. Where a flame could reach wood or insulation, a self-adhered patch is the safer choice. Either way, the roofer should stay on fire watch after any flame work.
Related service
Built Up Roofing Kenilworth, NJ
Built up roofing stacks three or more plies of felt and bitumen into a thick, heavy membrane, finished with a layer of gravel. Bare patches without gravel age quickly in the sun and are often where leaks begin. These roofs can last a long time, but blisters, splits and failed flashings show up as they age.
Most built up roof repairs in Kenilworth 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 Kenilworth, mod bit replaced a lot of old tar and gravel roofs years ago, and many of those are now due for work. From Kenilworth out to Roselle Park, Union, Cranford and Roselle, 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.
Need modified bitumen roofing around Kenilworth? Call (908) 613-5001 for a Kenilworth roofer who serves the towns around it too.
How the weather here affects roofs around Kenilworth
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, building ice dams that push water up under the shingles. Coastal storms and heavy spring rain drive water sideways into flashing, valleys and old chimneys. Most homeowners in Kenilworth, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why fix it now
Smaller repairs
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Familiar with local homes
Roofers in Kenilworth know the roof types and weather wear common in local homes.
Straight answers
Ask the roofer about the cause, the options and the estimate before work starts.
Modified Bitumen Roofing FAQ
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. Coating an aging but sound roof can add years.
How does mod bit compare to tar and gravel?
Both are asphalt roofs built in layers, but they are made differently. Built up roofs stack felts and hot bitumen with gravel on top, and mod bit uses two or three factory-made sheets with granules. Mod bit is lighter and more flexible, which is why it has replaced built up roofing on many buildings.
Is torch-down roofing safe?
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.
Can a mod bit roof be coated?
A coating can extend a modified bitumen roof that is aging but still dry and sound. Before coating, the roofer repairs blisters and laps and may use a bleed-blocking primer. White coatings reflect sun, which helps the asphalt last.
Can modified bitumen be installed over an existing roof?
What is already up there sets the answer. One dry existing roof can often stay in place under a cover board. Trapped moisture or two existing layers mean the old roofing comes off.
More questions? Call (908) 613-5001
Often needed together
Flat Roof Replacement
Tearing off or recovering a worn flat roof and installing a new membrane, insulation and edge metal, with tapered insulation where water used to sit.
Learn moreFlat Roof Repair
Fixing open seams, blisters, splits, ponding and failed flashing on flat and low slope roofs, so the roof sheds water again without a full replacement.
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
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