Commercial Roofing Project
Scottsbluff-Area TPO Roof Replacement in Mitchell, NE
By Commercial Roofing Contractor, project management team · November 3, 2026
- Commercial Roofing
- TPO Roof Replacement
- Hail Damage
- Johns Manville
- Mitchell
Project Capsule: The June 22, 2026 hail storm that hit Scottsbluff and the Nebraska Panhandle also damaged the low-slope roof on this commercial building in Mitchell. When CRC's Scottsbluff office opened it up, the roof turned out to be three layers of modified bitumen over old built-up roofing, all on spaced board decking. CRC tore everything off to the structure, re-decked the roof and parapet walls with new OSB, and installed a fully adhered 60-mil Johns Manville white TPO roof in three days in October 2026.
Project Facts
| Location | Mitchell, Nebraska (Scotts Bluff County) |
| CRC office | CRC Scottsbluff Office (Nebraska Panhandle) |
| Building type | A single-story commercial building with a storefront and a low-slope roof |
| Cause of loss | Hail, June 22, 2026 storm, handled as an insurance claim |
| Roof size | About 3,900 square feet of low-slope roof |
| Existing roof | Three layers of modified bitumen over built-up roofing, on spaced board decking |
| Scope | Full tear-off to the structure, new OSB roof deck and parapet sheathing, new roof system |
| Roof system installed | Johns Manville 60-mil white TPO, fully adhered, run up and over the parapet walls |
| Building code | 2018 International Building Code |
| Completed | October 2026, in three days on site |
Can a new flat roof go over three old roof layers?
Not on this Mitchell building. Under the hail-damaged surface were three layers of modified bitumen over the original built-up roof, all on spaced board decking, so CRC tore everything off to the structure and sheathed the whole roof and its parapet walls with new OSB before any new membrane went down.
Why fully adhere a TPO roof instead of screwing it down?
Here the 60-mil Johns Manville TPO was bonded to the new OSB deck with adhesive across the whole roof, so the membrane is held everywhere rather than at fastener rows. It suits a small low-slope roof with parapet walls, where the same sheet continues up the walls and under the new cap metal.
A Mitchell Building Hit by the June 2026 Hail
The June 22, 2026 hail storm dropped hail up to baseball size across Scotts Bluff County, and Mitchell was in its path. This building's flat roof took impacts across its granular surface, with punctures and split seams that would only keep leaking as the roof weathered. CRC's Scottsbluff office, about 12 miles away, inspected the roof, documented the damage for the owner's insurance claim, and worked the claim through to a full replacement.
Three Roofs Deep, on Spaced Boards
What sat under the surface mattered more than the hail. The roof had been covered over twice before: three layers of modified bitumen (an asphalt roll roofing, in this case heat-applied with a granular finish) on top of the building's original built-up tar and gravel roof. All of it was fastened to spaced board decking, the gapped plank decking common on older Panhandle buildings. A new membrane cannot go over layers like that, and spaced boards cannot support one either, so this was a tear-off to the structure rather than another layer.
New Deck, Then a Fully Adhered TPO Roof
The crew stripped all four layers off, then sheathed the entire roof and the parapet walls with new OSB to give the roof a solid deck. Over that, they installed Johns Manville TPO roofing, a 60-mil white TPO (thermoplastic polyolefin) single-ply membrane, fully adhered to the deck with bonding adhesive rather than mechanically fastened. The sheets are joined with hot-air welded seams, and the membrane runs up the parapet walls and over the top, where new nailers and cap metal finish the edge. CRC is a Johns Manville approved contractor, and the roof was built under the 2018 International Building Code that governs commercial work in Mitchell.
This is a summary to help you plan, not a compliance determination. The City of Mitchell is the authority on what your specific roof requires, and we always confirm current requirements with them before we scope a job. Several Colorado jurisdictions changed their adopted codes during 2026, so we re-verify against each department's own published codes rather than working from memory. Source: Mitchell, Nebraska Municipal Code Chapter 150. Last verified July 2026.
Details That Keep a Flat Roof Dry
Most flat roof leaks start at an edge or a penetration, not in the open field. On this roof the crew detail-flashed six penetrations, built two pitch pockets for the supports that cannot take a standard boot, and wrapped the parapet walls in TPO before capping them with new metal.
Hail Damage on a Commercial Roof Near Scottsbluff?
Older commercial buildings in the Panhandle often carry more roof than anyone realizes, and what is underneath decides the right repair. Our Scottsbluff office inspects commercial and residential roofs across the Panhandle at no cost, documents storm damage for Nebraska insurance claims, and handles full commercial roof replacements. Call (308) 536-7663 or request a free roof inspection.
Talk to the team nearest you: our Denver office, our Grand Junction office, or our Scottsbluff office.