By the time a roof in Durham has a visible ridge of ice at the eave, meltwater has already been pooling behind it for several freeze-thaw cycles. As part of our complete Durham winter roof services, crews handle commercial ice dam removal across Strafford County.
Durham Ice Dams and the Winter That Does Not Break
Durham holds snow. In a normal winter the pack that lands in December is still on the roof in February, which means the eave spends months below freezing while the attic underneath stays heated.
Ice built this way is dense and bonded. It is not the brittle shell that comes off a mild-climate roof in one piece - it is layered, hard and locked to the shingle, which is exactly why mechanical removal does so much damage here.
Ice-barrier practice in Strafford County
New Hampshire code has required ice-barrier underlayment at the eaves for years on new work, but plenty of housing stock predates it. On an older Durham roof the only thing between backed-up water and the deck is the shingle course itself.
Commercial Ice Dam Removal in Durham: How The Work Runs
Flat roofs fail differently
A pitched residential roof dams at the eave. A commercial deck dams at its drainage: frozen scuppers, iced-over internal drains, and ponding that refreezes into a sheet across the low spots. Water then sits on the membrane at depth, finds a seam or a flashing detail, and comes through into the tenant space below.
Parapet walls make it worse by holding the melt on the deck instead of letting it run off an edge. By the time it shows up as a ceiling tile stain in a Durham unit, there is usually standing water up there.
Internal drains fail differently from gutters
A residential gutter overflows when it blocks. An internal roof drain just stops, and the water stays on the deck at depth until it finds a seam, a flashing detail or a pitch pocket.
Crews open the drain throat and then confirm flow in the leader below before calling it clear. An open drain over a frozen leader is not an open drain, and on a Durham building that distinction shows up as a tenant ceiling two floors down.
Multiple buildings on one site
Campuses, retail strips and multi-building properties get walked together and prioritized by which deck is closest to trouble, rather than worked in the order the calls came in.
One scope, one invoice, one contact. It is a meaningfully different job from nine separate ones.
Membrane-safe means something specific
EPDM, TPO and modified bitumen all tolerate steam at low pressure and none of them tolerate chipping, scraping or a pressure washer. Crews steam the drains and scuppers open first to restore flow, then work the ponded ice, and they stay off seams and flashing details with the lance.
Mechanical units, conduit runs, solar racking and safety railing all get worked around rather than over.
Parapets hold the water in
A parapet is why a commercial deck ponds instead of shedding. Scuppers through the parapet are the only exit, and they are narrow, exposed on three sides and the first thing to freeze solid.
Steaming a scupper throat open is often the single highest-value twenty minutes of a commercial Durham call.
What you get in Durham
- Tenant-hours schedulingWork windows set around occupancy and access
- EPDM, TPO and mod-bitLow-pressure steam only, seams and flashing details avoided
- Documentation for the boardCondition report and photo record with every invoice
| Local ice-barrier practice | Eave membrane required on new work |
|---|---|
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
| Documentation | Dated before and after photos, written scope in Xactimate line items |
| Pricing model | Billed by the crew hour, rate quoted before dispatch |
| Dispatch window | Same day to 24 hours |
| Typical scope | Steam, 6-14 crew hours typical |
| Coverage area | Durham and Strafford County |
Neighborhoods and Towns We Reach From Durham
Crews working Durham cover the adjoining communities on the same route — Madbury, Lee, Newmarket, Barrington and Newfields — so a storm week usually means one truck handling several addresses in Strafford County rather than separate trips.
Nearest hub towns with their own commercial ice dams pages: Dover, Somersworth, Rochester, Portsmouth, Exeter, Derry.
Crews cover Durham and the surrounding Strafford County towns through the whole season, and during a freeze event they run from first light until dark.
Most jobs do not stop at one service. Commercial Ice Dams in Durham often runs alongside commercial roof snow removal in Durham, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Durham steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.
