If you are in Sitka watching icicles grow along the gutter line, what you are really watching is water that no longer has anywhere to drain. As part of our complete Sitka winter roof services, crews handle commercial roof snow removal across Sitka County.
Why Sitka Roofs Dam on Days It Never Thaws
Mountain ice dams are a solar problem more than a temperature one. The sun works the pack from above while the air stays cold, so meltwater is produced and refrozen within the same afternoon.

Aspect decides everything here. The sunny plane sheds water that the shaded plane and the shaded eave then lock up, so one side of a roof in Sitka is clear while the other carries a wall of ice.
Ice-barrier practice in Sitka County
High-country Alaska codes typically call for extended ice barrier and, on metal roofing, snow guards above any door, walkway or parking area. Both exist because of what comes off these roofs.
Commercial Roof Snow Removal in Sitka: How The Work Runs
Sequencing so the load comes off evenly
Stripping one bay to the deck while the next still carries two feet creates exactly the unbalanced condition that overloads a member. Structures object less to a lot of weight spread evenly than to a moderate weight concentrated on one side. Ceiling Sagging or Bulging After Snow.
Crews work in passes across the whole span, reducing everywhere before going deeper anywhere, and the sequence is set before anybody starts rather than left to whoever gets up there first.
The cost of a shutdown against the cost of a clear
Clearing a large deck is a real number and it is easy to defer. The comparison that matters is not clearing against nothing, it is clearing against the day the building is closed while an engineer inspects it - lost trade, displaced tenants, and an insurer asking what was done beforehand.
The load reading is what makes that decision for you rather than a feeling about how deep the snow looks.
Unbalanced loading is the real hazard
Snow does not settle evenly on a large deck. It piles against parapets, behind rooftop units, in the lee of a higher adjoining roof and in the valleys between bays.
Clearing has to be balanced for the same reason. Taking it all off one bay and none off the next shifts the load rather than removing it.
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 Sitka roof to bare membrane costs more, takes longer and risks the roof covering for no structural benefit.
Mid-span is where the margin runs out
Long-span steel and open-web joist roofs carry least where the drift is deepest. The average depth across the field is not the number that matters; the depth over the longest unsupported span is.
That is where crews measure on a Sitka building, and it is why two roofs with the same snowfall can be in very different trouble.

What you get in Sitka
- Overflows opened firstDrains and scuppers cleared before the load comes off
- Balanced reductionLoad brought under threshold without shifting it onto one bay
- Drains kept openScuppers and internal drains cleared so meltwater has an exit
| Primary climate stressor | Solar melt on deep pack, shaded eaves |
|---|---|
| Service | Commercial Roof Snow Removal in Sitka, AK |
| Local ice-barrier practice | Extended membrane plus snow retention |
| Documentation | Dated before and after photos, written scope in Xactimate line items |
| Dispatch window | 24 to 48 hours in mountain terrain |
| Typical scope | Steam, 8-16 crew hours typical |
| Removal method | Low-pressure steam only. No chipping, salt or pressure washing. |
Where We Dispatch Around Sitka
Crews working Sitka cover the adjoining communities on the same route — Port Alexander — so a storm week usually means one truck handling several addresses in Sitka County rather than separate trips.
Nearest hub towns with their own commercial snow pages: Juneau, Ketchikan, Valdez, Girdwood, Palmer, Wasilla.
Crews cover Sitka and the surrounding Sitka 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 Snow in Sitka often runs alongside crane-assisted snow removal in Sitka, and both get written into one scope rather than billed as separate visits.
Active leak right now? Our 24/7 Sitka steam ice dam removal crews are dispatched first during a freeze event. Call (888) 561-9664.




