Most Allentown homeowners find out about an ice dam from the inside — a damp patch on a bedroom ceiling, or water tracking down the inside of a window frame. As part of our complete Allentown winter roof services, crews handle commercial roof snow removal across Lehigh County.
Why Allentown Roofs Dam Up: Nor'easter Load and the Maritime Swing
Lehigh County gets the worst combination for ice: snow with high water content, followed by temperatures that oscillate rather than settle. The pack does not stay frozen and it does not drain.
Retrofits often made it worse rather than better. Insulation laid on an attic floor without sealing the bypasses underneath it keeps the living space warm and sends the same warm air straight to the roof deck.
Ice-barrier practice in Lehigh County
Ice-barrier membrane at the eaves is standard on re-roofs across coastal Pennsylvania, and many towns enforce it strictly. Homes that have not been re-roofed since that became normal practice are the ones that leak first.
Commercial Roof Snow Removal in Allentown: How The Work Runs
Reading the design load off the drawings
Where structural drawings exist they state the design ground snow load and the roof's own capacity, and that number turns the whole question from opinion into arithmetic. Measured depth and density against design capacity gives a percentage rather than an argument. Ceiling Sagging or Bulging After Snow.
Where the drawings have been lost - common on older Allentown stock - the conservative assumption is the code minimum of the era the building went up, which is usually well below what a modern roof would be built to.
Ponding after the clear
Taking the snow off a flat roof with frozen drains leaves meltwater with nowhere to go, and water that ponds and refreezes puts load back on a deck that was just relieved.
So drains and overflows are opened as part of the clear rather than afterwards, and the roof is left draining. A clear that stops at the snow is half a job.
Reduction to a threshold, not a bare deck
The goal is bringing the load under the structure's capacity safely, with a cushion layer left on the membrane throughout.
Scraping a commercial Allentown roof to bare membrane costs more, takes longer and risks the roof covering for no structural benefit.
Why large decks carry the most risk
A long-span steel or open-web joist roof has the least margin exactly where the drift is deepest — mid-span. Snow does not settle evenly either: it piles against parapets, behind rooftop units, in the lee of higher adjoining roofs, and in valleys between bays. The average depth across the roof is not the number that matters.
Crews survey depth and density at the drift points rather than the middle of the field, and calculate the working load from that against the structure's design capacity.
Reduction, not bare deck
The goal is to bring the load under threshold safely, not to scrape a roof in Allentown clean. Clearing is balanced across the deck so load is not shifted onto one bay, drains and scuppers are opened so melt has an exit, and a cushion layer always stays on the membrane.
Where the figures call for it, crews bring in crane-assisted picks instead of adding bodies to a roof that is already carrying too much.
What you get in Allentown
- Overflows opened firstDrains and scuppers cleared before the load comes off
- Drains kept openScuppers and internal drains cleared so meltwater has an exit
- Balanced reductionLoad brought under threshold without shifting it onto one bay
| Service | Commercial Roof Snow Removal in Allentown, PA |
|---|---|
| Primary climate stressor | Nor'easters, rapid thaw-freeze swing |
| Local ice-barrier practice | Eave membrane standard on re-roofs |
| Documentation | Dated before and after photos, written scope in Xactimate line items |
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Dispatch window | Same day to 24 hours |
Lehigh County Coverage From Allentown
Crews working Allentown cover the adjoining communities on the same route — Lehigh Valley, Whitehall, Catasauqua, Center Valley and Emmaus — so a storm week usually means one truck handling several addresses in Lehigh County rather than separate trips.
Nearest hub towns with their own commercial snow pages: Bethlehem, Easton, Pottstown, Reading, Norristown, Pocono Pines.
Scheduling for Allentown tightens up during a freeze event, which is exactly when the phone beats the form. Water coming in means a call, not an email.
Most jobs do not stop at one service. Commercial Snow in Allentown often runs alongside crane-assisted snow removal in Allentown, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Allentown steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.
