Granules in the Gutter After a Salt Lake Hailstorm: A Step-by-Step Damage Check

The storm passed twenty minutes ago. You walk out to check the yard and the driveway is peppered with little dark specks, like coarse black sand washed down from the eaves. You crouch, run a hand across the concrete near the downspout, and come up with a palmful of gritty granules. Those specks used to be on your roof.

That grit is one of the clearest early signs of hail damage on a Salt Lake home, and it is easy to miss if you are only looking at the shingles from the street. Along the Wasatch Front, an August cell can drop pea to quarter sized hail in ten minutes and leave a roof that looks fine from the ground but has lost the coating that protects it from our high-altitude UV. Here is a step-by-step way to check for it before the next rain finds the soft spots.

Step 1: Start at the downspout splash zone

Do not climb anything yet. The first evidence collects at ground level.

Walk to the base of each downspout and look at the concrete, the mulch, and the grass. A light, even sprinkle of granules after years of normal weathering is expected. A fresh, heavy pile right after a storm is not. On a 2,000-square-foot roof, a real hail hit can wash out enough granules in one storm to fill a coffee mug at a single downspout.

While you are down there, check the gutter openings. If the mesh or the drop outlet is caked with grit that was not there last week, that is shingle surface that is no longer on the roof.

Step 2: Scoop and compare the gutters

Grab a bucket and a small trowel and clear a two-foot section of gutter near one corner. Dump it out and look at what settles.

You are separating two things: ordinary dirt and leaf debris versus the sharp, sparkly mineral granules that coat asphalt shingles. Granules feel gritty and reflect a little light. If a clean gutter section from a month ago now holds a half inch of granule sludge, the storm moved a lot of surface material fast. That is different from the slow granule shedding a roof does naturally as it ages, which we cover in our post on roof shingles buckling and other age-related wear.

Step 3: Look at the soft metal on the roof

Hail leaves its clearest fingerprints on soft metal, so check those from a ladder or with binoculars before you ever look at a shingle.

Walk your eyes across:

• Gutters and downspouts for dents and dimples, especially on the top-facing surfaces.
• Vent hoods and the metal caps on plumbing stacks for round divots.
• Flashing and valley metal for pockmarks.
• The AC condenser and any metal patio furniture, which act like a hail size gauge.

If the vent caps are dimpled and the gutters have a rash of small dents, the shingles took the same hits. This soft-metal check is the fastest way to confirm a storm was strong enough to matter. We walk through the whole post-storm sweep in our stage-by-stage roof damage checklist.

Step 4: Read the shingle surface itself

If it is safe to get close, look at the shingle field, not just the edges.

A fresh hail bruise looks like a dark, slightly shiny circle where the granules were knocked away and the asphalt mat underneath is exposed. Press a bruise gently and it may feel soft, like the give in a fresh apple. Compare that to a normal weathered spot, which is uniform and dry. On a roof that took quarter sized hail, you might count 8 to 10 bruises in a 10-by-10-foot test square. That density is what an adjuster looks for.

Do not caulk or scrub anything yet. Those bruises are your documentation.

Step 5: Photograph before you touch anything

Once you have found evidence, record it while it is fresh.

Take wide shots that show the whole roof slope, then close-ups with something for scale, a quarter or a tape measure, next to each bruise and dent. Photograph the granule piles at the downspouts and the dented vent caps too. Date matters here, so shoot the same day. If you end up filing a claim, this is the record that keeps a “wear and tear” denial from sticking. Our summer storm season guide explains why catching wind and hail damage early makes both repairs and claims go smoother.

Step 6: Call for a professional look before it rains again

Granule loss is not always an emergency, but it is not something to sit on either. Bare spots let UV cook the asphalt mat, and the next rainstorm tests every weak seam. A trained eye can tell the difference between cosmetic pitting and functional damage that shortens the roof’s life.

That is where our storm damage team comes in. A free inspection tells you whether you are looking at a spot repair, a slope, or a full replacement, and whether an insurance claim is worth opening. If a replacement is on the table, it is also a good moment to weigh materials, and our comparison of metal roofs vs shingles is a practical place to start.

When in doubt, reach out to our Salt Lake roofing crew for a straight answer. We would rather tell you the roof is fine than watch a small bruise turn into a February leak.

Frequently Asked Questions

How much granule loss is normal versus storm damage?

A new roof sheds a little loose granules in its first year, and any roof loses some slowly with age. The red flag is a sudden, heavy pile at your downspouts right after a storm, paired with dimpled gutters and vent caps. Timing is the tell: a fresh dump of grit the same day as hail is storm damage, not slow weathering.

Can hail damage cause a leak right away?

Not usually the same day. Hail knocks off the protective granules and bruises the mat, which weakens the shingle over time. The leak often shows up weeks or months later after UV and the next few rainstorms work the bare spots. That delay is exactly why an early check matters.

Do I need to file an insurance claim for granule loss?

It depends on how much and how deep. Cosmetic pitting on a newer roof may not meet a claim threshold, while widespread bruising on an older roof often does. Get a free inspection first so you know what you are dealing with, then decide whether opening a claim makes sense.