Wet Insulation Under the Membrane
Soft spots underfoot and stains that keep spreading point to insulation holding water. Core cuts tell us how far it runs before any layer stays.
Lehigh Valley Roof Systems
Bethlehem Commercial Roofing Contractor
Which Roof System Fits Your Warehouse, Plant, or Office Building?
As a Bethlehem commercial roofing contractor, we install and replace TPO, EPDM, industrial, and metal roofs on buildings that stay open during the work.
- Starts WithCore cuts and a deck check
- SystemsTPO, EPDM, and metal
- BuildingsWarehouses, plants, offices
- CoverageBethlehem plus five towns
Commercial Roofing Problems on Bethlehem, PA Buildings
Bethlehem commercial roofing work usually starts with one of these conditions on a flat or low-slope roof. Each one changes what the new assembly needs.
Water Standing for Days
Low areas around drains hold water after every storm. Tapered insulation or a reset drain fixes the slope during the reroof.
Seams That Keep Reopening
Taped laps on older rubber roofs and failed welds on aging TPO open again soon after each patch.
Leaks at Rooftop Units
Curb flashing that was patched around an old unit tends to leak first. A new roof gets new curb details.
Deck Damage Near Old Leaks
Rusted steel deck or soft wood plank under a long-running leak needs repair before anything new goes on top.
Ice and Snowmelt at Gutters
Meltwater refreezing at gutters and scuppers backs up under the edge. Edge metal and drain routes get rebuilt.
Bethlehem Commercial Roofing Systems We Install
Four roof systems cover most commercial buildings around the Lehigh Valley. Each card names where water usually gets into that type of roof.
TPO Roofing
White heat-welded membrane over new insulation, laid out around drains, curbs, and the maintenance paths a facility team actually uses.
Where Water Gets In- Field seams that were never probed
- Curb corners around rooftop units
- Edge metal lifting at the perimeter
EPDM Roofing
Black rubber sheet, fully adhered or mechanically attached, for low-slope roofs on offices, mill buildings, and older commercial blocks.
Where Water Gets In- Taped laps opening after freeze cycles
- Clamping rings at roof drains
- Punctures from dropped tools and debris
Industrial Roofing
Roof replacement planned around exhaust, process humidity, and equipment on plants that keep running while sections are opened.
Where Water Gets In- Collars around exhaust stacks
- Equipment curbs and pipe supports
- Service paths worn through the membrane
Commercial Metal Roofing
New standing-seam or ribbed panels, including retrofit framing over worn low-slope roofs where the structure has been reviewed.
Where Water Gets In- Panel end laps and ridge closures
- Rusted fasteners on older panels
- Wall flashing where panels meet brick
How Commercial Roofing Fixes Common Failures in Bethlehem
A replacement earns its cost when it removes the cause of a leak. Here is what each failure looks like and what the new roof does about it.
- Failure
Water Trapped in Old Layers
Wet board loses insulating value and keeps the deck damp long after the leak is fixed.
What The New Roof DoesWet layers come off down to a dry deck, and new insulation goes back at the thickness the building needs.
- Failure
Drains Set Too High
Settled decks and added layers leave drains above the low point, so water sits around them.
What The New Roof DoesTapered board and lowered drain sumps send runoff to the outlets instead of across the field.
- Failure
Edge Metal Pulling Loose
Wind works loose coping and gravel stop, then water runs behind the wall flashing.
What The New Roof DoesFresh edge metal is fastened to solid blocking and tied into the new membrane at every corner.
- Failure
Patched Penetrations
Years of mastic around pipes and units hide gaps that open in every freeze.
What The New Roof DoesPenetrations get new boots, curb wraps, and pitch pans built for the membrane being installed.
Planning a Reroof This Year?
A walk on the roof and a few core cuts settle most questions about scope. Tell us about the building and we will set a time to look at it.
Schedule Your Free InspectionWhat To Have Ready
- Building size or a rough square footage
- Where the leaks or stains show up
- Age of the current roof, if known
- Rooftop units and other equipment
Commercial Roofing Choices for Bethlehem Brick Industrial Buildings
Start from what the roof is doing now. These four situations cover most calls we get from owners of older brick and steel buildings.
If Your Roof
Has a Dry Deck but a Worn Membrane
Core cuts show dry board, so the roof can come off to the insulation and get a new membrane.
Start WithTPO or EPDM replacement
If Your Roof
Ponds Water at Every Drain
Standing water points to slope trouble that a new sheet alone leaves in place.
Start WithTapered insulation and drain work
If Your Roof
Sits Over a Busy Production Floor
Exhaust, humidity, and equipment shape how and when each section can be opened.
Start WithIndustrial roof planning
If Your Roof
Leaks at One Detail on a Young Roof
A failed curb wrap or open seam on a newer roof points to a targeted fix first.
Start WithA repair before any replacement
How Commercial Roofing Work Runs in Bethlehem
Every reroof follows the same order, from the first walk to the final water test, sized to the building in front of us.
- 1
Inspect Your Roof
Day 1We walk the field, cut cores to read each layer, and note every drain, curb, and edge detail that the new roof has to meet.
- 2
Write Down the Assembly
ScopeThe proposal names the tear-off depth, insulation thickness, attachment, and each flashing detail so two bids can be compared line by line.
- 3
Plan Access and Protection
PrepRoof hoisting spots, dumpster location, and interior protection get set around deliveries, tenants, and work that continues below.
- 4
Open and Close in Sections
InstallEach area that comes off goes back watertight before the crew leaves, with temporary tie-ins wherever rain or snow is in the forecast.
- 5
Probe, Test, and Walk Through
Close-OutSeams are probed, drains are flushed, and the owner walks the finished roof with us before the crew packs up.
Nearby Towns We Work In
Is your building near Bethlehem? We install commercial roofs in the towns below. If yours sits somewhere else, call us or send us a message.
- Bethlehem
Warehouses, brick industrial buildings, and medical offices make up most of the commercial roofs we replace here.
- Perkasie
Stocked warehouses where deliveries keep moving under the roof while sections are replaced.
- Hatboro
Older storefront and office roofs where the perimeter edge metal decides how much gets renewed.
- Doylestown
Office buildings with rooftop units and curbs that need sequencing with the equipment contractor.
- Glenolden
Flat roofs with low spots and slow drains that call for slope changes during replacement.
- Ambler
Commercial roofs with busy service traffic where walkway routes protect the new membrane.
Commercial Roofing Questions From Bethlehem Owners
Short answers to what property owners and facility managers ask most before a reroof.
What Should a Roofer Establish Before Proposing a Replacement?
Three things: what the existing roof is made of, how wet it is, and how it can come off safely. On a Bethlehem building that means checking the deck, every equipment connection, and access above occupied space. A proposal that names a membrane before anyone has cut a core skips the step that decides the scope.
What Is Considered Commercial Roofing?
Commercial roofing is the whole assembly on a business or industrial building, from the deck up to the top sheet. Insulation, cover board, drainage, edge metal, and flashing at every curb and pipe all count. Sections of the old roof that stay in place need proper tie-ins too, so the membrane is one part of a larger job.
Is Commercial Roof Replacement in Winter Possible in Bethlehem?
Yes, when the crew can work safely and the chosen system can be installed in the temperatures at hand. Snow, ice, and wet substrate get cleared and checked before an area is opened. Temporary closures are planned for each section, and gutters and drains are watched so snowmelt has a path off the roof.
How Do I Compare Two Commercial Roofing Proposals?
Put the scopes side by side: tear-off depth, insulation, attachment method, and flashing details should match before prices are compared. Check the allowances for hidden deck damage and the plan for working around equipment. A low number often means something was left out, so ask each bidder to state access, protection, and what stays in place.
Should a Logistics Warehouse Pick TPO or EPDM by Name?
Compare the full assemblies instead. Seams, attachment, and upkeep differ between the two, and so do the edge and curb details. On a distribution building we also look at forklift-height equipment on the roof, service paths, and drain layout before recommending either membrane for that roof.
Will a New Roof Lower a Medical Office Insurance Cost?
Plan the budget without counting on it. Premiums depend on the policy and the insurer, including how they treat any existing damage. We can hand over the roof scope and condition notes for the office to share with its agent, who can say whether anything changes.
Why Check Humidity Before Reroofing a Brick Industrial Building?
Moist air from inside an old brick building can wet the insulation from below, even with no rain leak. We compare condensation signs with the walls and flashing before settling the scope. If an interior moisture source stays active, a new outer roof will keep collecting water underneath it.
What Code Framework Applies to Reroofing in Bethlehem?
Pennsylvania applies the statewide Uniform Construction Code. For a Bethlehem reroof we describe the existing layers and the planned changes to the reviewing office, including removal limits, insulation, and any work that touches the structure.
Hire a Bethlehem Commercial Roofing Contractor
Send the address and a few notes about the roof. We will walk it, cut cores where needed, and write up the system that fits the building.