Strafford County sees the same pattern every winter: snow on the roof, warm air in the attic, and a line of ice building along the eave where the two meet. As part of our complete Durham winter roof services, crews handle mold remediation 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.
Mold Remediation in Durham: How The Work Runs
Attic mold: the sheathing, the rafters and the insulation
Most ice dam mold is in the attic. Meltwater backs up under the shingles at the eave, wets the roof deck from above, and runs down onto the insulation. Black spotting on the underside of the OSB or plywood along the eave line, darkened rafters and matted, stained insulation are the signs. Mold in the Attic After an Ice Dam.
Wet insulation comes out and is bagged inside the containment. Affected sheathing and framing are HEPA vacuumed, cleaned and treated, or cut out and replaced where the wood has lost strength. Then the attic is dried to a measured number before anything goes back in.
The smell is a symptom
A musty smell upstairs in winter, in a closet on an exterior wall, or coming out of a ceiling light usually means growth somewhere you cannot see, most often the attic or a wall cavity under the eave.
It is worth investigating rather than masking. Air fresheners and ozone machines do nothing about the growth or the moisture behind it.
Why drying comes before rebuilding
Closing up a wall or ceiling over damp framing is how mold comes back. Air movers and dehumidifiers run until moisture readings on the framing and sheathing reach a dry standard for that material.
Only then does insulation and drywall go back in. In a Durham winter, with cold cavities, that can take longer than people expect, and the daily readings show exactly where it is up to.
Mold coverage and the sublimit
Where mold is the result of a covered water loss, many policies cover remediation, but often under a separate, smaller limit than the rest of the claim. Knowing that number before work starts matters, because it changes how the scope is written.
The water mitigation, the interior repair and the roof work generally sit under the dwelling coverage, while the mold-specific line items sit under the sublimit. Scoping them separately keeps the mold cap from swallowing the rest of the claim.
What comes out and what gets cleaned
Porous material that has grown mold, such as wet insulation, drywall paper and ceiling tile, cannot be reliably cleaned, so it comes out, bagged inside the containment.
Structural wood is different. Rafters, joists and sheathing with surface growth are HEPA vacuumed, cleaned and treated. Where the wood has gone soft or lost strength from repeated wetting, it gets cut out and replaced.

What you get in Durham
- Claim-ready recordsDated photos and Xactimate line items alongside the water loss
- Moldy material removedWet insulation, drywall and trim that cannot be cleaned are bagged and taken out
- Containment firstPoly barriers and negative air so spores stay in the work area
| Documentation | Dated before and after photos, written scope in Xactimate line items |
|---|---|
| Dispatch window | Same day to 24 hours |
| Interior repair | Insulation, drywall, texture, trim and paint, done in-house after drying |
| Billing | Xactimate line items on one claim; carrier billed directly where the policy allows |
| Coverage area | Durham and Strafford County |
| Local ice-barrier practice | Eave membrane required on new work |
| Method | Containment, HEPA filtration and drying to a measured IICRC standard |
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 mold remediation pages: Dover, Somersworth, Rochester, Portsmouth, Exeter, Derry.
When a storm hits Strafford County, crews are dispatched by severity rather than by call order — water already inside the house goes first.
Most jobs do not stop at one service. Mold Remediation in Durham often runs alongside water mitigation & dryout 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.








