Hail Damage on Tile and Slate Roofs

Lumping these together is the mistake that produces bad scopes. They are three different materials with three different failure modes, and a fourth product on the market imitates the look of all of them while behaving like none. What the inspection is looking for changes with each one.

An asphalt roof with hail damage looks visibly mottled from the yard once you know what to look for. A tile roof with thirty cracked tiles looks perfect. The pieces do not fall off. They sit in the courses they were laid in, held by a nail at the head and by the tile above, and the crack running across the middle is invisible from any angle except straight down from a few feet away.

Water still gets through. Tile and slate roofs shed water on the surface and depend on the underlayment beneath as the real waterproofing layer, so a cracked tile puts water onto felt or synthetic underlayment that was never meant to take direct flow. That layer holds for a while and then it does not, and the first symptom is a stain on a bedroom ceiling eighteen months after a storm nobody connected it to. By then, dating the loss is a paperwork problem and the notice window on the policy may already have closed.

The secondary damage is the expensive part. Water sitting on underlayment rots battens and deck sheathing, and on a tile roof the deck is under a heavy assembly that has to come off in sections to reach it. A claim filed promptly replaces cracked tiles. The same claim found two winters later replaces tiles, underlayment, battens and a section of decking.

Here is the part that makes tile and slate genuinely different from every other inspection we do. The act of inspecting causes damage. Concrete and clay tile break under a misplaced boot, and old slate breaks under a well-placed one. A crew that walks a hundred-year-old slate roof the way they walk asphalt will leave more broken stone behind them than the hail did, and we have been called to quote repairs that were created by the last inspection.

So the method changes. Access comes from a ladder at the eave and from the valleys and hips where the assembly is best supported, weight goes on the headlap of the piece rather than the middle of the span, and on brittle slate we work off foam pads or a chicken ladder rather than standing directly on the field. Anything we can document from the ground with a long lens, we document from the ground. A documented inspection of a tile roof takes longer than the same inspection on asphalt for exactly this reason, and it should.

We are not going to print a price for your roof. Any figure quoted without seeing the property is a guess dressed up as a quote. What drives it is worth knowing before an adjuster hands you a scope.

Per-piece material cost is the smallest part. Labor is higher because the work is slower and access is harder, breakage allowance has to be real rather than optimistic, and sourcing discontinued pieces can cost more than the labor to install them. If the underlayment is being replaced, the whole assembly comes off and goes back on, and on tile that is a large share of the job. Steep pitch and two-story access add charges that belong on the scope as their own lines. Where the carrier's first estimate falls short on those, the remedy is a documented supplement rather than an argument.

One thing worth hearing early: a tile or slate roof is usually worth restoring rather than converting. Replacing an intact eighty-year-old slate roof with asphalt trades a fifty-year assembly for a twenty-year one, and it rarely pencils out unless the deck below is failing anyway. We have talked more than one homeowner out of that conversion.