Reading hail damage on a low-slope membrane
Hail does not damage every roof system the same way. On TPO and PVC single-ply, we look for bruising - soft spots where the impact compressed the membrane and insulation without puncturing the surface - along with granule displacement on modified bitumen and BUR fields, and cracked or split sealant at penetrations. On EPDM, hail can leave circular scars that are easy to spot but hard to size correctly without a hands-on test. Metal roofing shows hail more honestly: dents in standing seam panels, coping, and gutters give a fairly reliable map of impact size and density across the field, which is useful even on buildings where the primary membrane is harder to read.
We map impacts by roof zone rather than reporting a single average, because hail density is rarely uniform across a large commercial roof. A warehouse roof near the I-29 corridor might show heavy bruising on the windward third of the field and comparatively light impact on the leeward side, and an estimate that treats the whole roof as one condition misses that pattern.
Test cuts and moisture verification
On membranes where surface bruising is hard to confirm visually, we pull test cuts to check the scrim and insulation directly, and we run a moisture scan where a roof has been open to weather for any length of time before the inspection. That evidence matters because a hail claim that gets scoped from photos alone can undercount the damage on a membrane that looks intact but has lost its reinforcement strength across the impact zone. A test cut costs little compared to the cost of a claim reopened a year later because a bruised membrane started leaking.
Coordinating with the adjuster
Hail claims move faster and settle cleaner when the adjuster sees the same impact map we do. We walk the roof with the adjuster where the owner asks us to, point out impact density by zone, and explain why cosmetic granule loss in one area is treated differently than scrim-level bruising in another. We do not push the adjuster toward a number - we make sure the roof evidence in front of them is complete and accurate before they write the estimate.
We're a roofing contractor documenting hail damage, not a public adjuster negotiating your claim. We inspect, test, and photograph the roof so you and your carrier are working from the same accurate picture.
Building stock across Sioux Falls
Hail exposure plays out differently depending on the building. Retail and restaurant roofs near the Empire Mall corridor tend to have more rooftop penetrations and package units that take direct hits, which shows up fast in leak calls after a storm. Office and financial buildings downtown and around Phillips Avenue often carry older built-up or modified bitumen systems where hail damage is harder to see without a trained eye. Distribution and manufacturing roofs along I-29 and I-90 are large enough that a single storm cell can hit only part of the field, which is exactly the kind of uneven damage pattern a zone-by-zone inspection is built to catch. Multifamily roofs in growing areas like Foundation Park and Dawley Farm Village tend to be newer TPO or shingle-adjacent systems, where impact damage is more visually obvious but still needs documentation to support the claim.
After the storm
If interior water is already showing up, we prioritize a temporary dry-in before anything else - tarping, sealing, and stopping active water entry protects the building while the claim and permanent repair scope get worked out. Once the roof is stable, we schedule the full inspection, document every impacted zone, and put together the report the owner needs whether the claim is straightforward or ends up disputed.
Questions Building Owners Ask
How do you tell hail damage from normal wear on a low-slope roof?
We look at impact pattern and density rather than isolated marks - hail leaves a fairly consistent scatter across an exposed field, while wear tends to concentrate at seams, drains, and high-traffic areas. Test cuts confirm scrim condition where surface bruising alone is not conclusive.
Will small hail still show up on our claim?
It can. Hail too small to puncture a membrane can still crack the reinforcement layer, and that damage does not always show up on a first walk-through. We document impact size and density even when the surface looks intact, because that record matters if a leak develops later.
Do you need to pull test cuts on every hail claim?
Not always. Metal roofing and clearly punctured membranes usually do not need it. Single-ply membranes with subtle bruising often do, since a test cut is the most reliable way to confirm scrim damage under an intact surface.
How fast can you inspect after a hailstorm?
We prioritize buildings with active interior water first, then move through storm-affected roofs by report order. A pre-adjuster inspection in the days right after the storm gives us the cleanest baseline before weather or foot traffic changes the roof.
What if the adjuster's hail count is lower than what we found?
That happens, usually because a ground-level or partial roof review misses zones with heavier impact. We can walk the roof again with the adjuster and point directly to the zones and evidence the original estimate did not account for.
