Roofing in Gretna, NE
An independent look at which weather loads drive wear here — built from 1991-2020 climate records and Nebraska code requirements, with no contractor paying to appear.
Sarpy County, Nebraska. Planning figures — not a quote.
What the weather does to roofs in Gretna
Across the 1991-2020 climate normals, Gretna averages summer highs averaging 84°F, 34 in of precipitation a year, and 40 in of snow — the loads a replacement here is bought to survive.
The dominant stressor is deep winter cold. Gretna’s average winter lows of 15°F sits lower than all but 8% of the 1,037 cities covered here. Winter lows averaging 15°F matter for scheduling more than for product choice. Asphalt shingles will not seal below roughly 40°F, so a Gretna roof finished late in the season can sit unbonded until spring. Ask whether the crew hand-seals, and when they plan to start.
144 days a year dropping to freezing compounds it — in the 88th percentile among the same set. 144 crossings of 32°F a year work moisture into every nail hole and flashing lap, then expand it. Sealant-dependent repairs are the first thing to go, which is why flashing in Gretna is better replaced than re-caulked when a roof is opened up.
Source: NOAA 1991-2020 U.S. Climate Normals, nearest reporting station (1 mi from Gretna). Percentiles are measured against the 1,037 cities in this guide.
Where this guide covers in Gretna
ZIP codes
Gretna spans Sarpy County, and this guide covers the 1 ZIP code carrying a Gretna mailing address.
- 68028
Closest cities in this guide
Straight-line distance from Gretna, nearest first.
Gretna roofing questions
What wears out roofs fastest in Gretna?
Deep winter cold. Gretna records 15°F average winter lows, which is the 8th percentile among the 1,037 cities covered here. Winter lows averaging 15°F matter for scheduling more than for product choice. Asphalt shingles will not seal below roughly 40°F, so a Gretna roof finished late in the season can sit unbonded until spring. Ask whether the crew hand-seals, and when they plan to start.
Does this guide cover areas near Gretna?
Yes — the closest are Ashland (10 mi), Papillion (10 mi), and La Vista (11 mi), each researched separately. Comparing them is worth a minute: a contractor working out of Ashland will quote Gretna too, and the two markets do not always price the same.
Compare three local quotes
The ranges on this page are for planning. The only way to know your number is a measured scope from a contractor who has been on the roof. We will pass your details to vetted local companies — no cost, no obligation.