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Saturday | 9 AM - 2 PM
Slate roofing is made from natural stone that is carefully split into thin shingles, giving a home a classic look and a roof that can last for generations when properly maintained. In Highland Park, many slate roofs are worth preserving rather than replacing. The problem may be as simple as a slipped slate over a bedroom, worn chimney flashing, or figuring out whether the existing roof can be restored.
At Acorn Roofing, we understand that slate requires a different approach from standard roofing. We use ladders and hook boards instead of walking directly on the slate, and we replace individual pieces when that is all the roof needs. Our goal is to protect the character of the home while keeping its original slate roof performing for years to come.
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Slate is set in courses over a solid deck, with headlap and exposure calculated for the roof’s pitch rather than pulled from a default. We detail valleys, ridges, and penetrations before the first course goes on.
Individual slates come out and go back in without disturbing the courses around them. We cut the old fastener with a slate ripper and secure the replacement with a hook or a copper bib.
A mismatched slate stays visible for the life of the roof, so we match thickness, size, and color as closely as the quarry source allows, and we tell you when a close match is the best available.
Most slate leaks start at metal, not stone. We replace step, counter, apron, and kick-out flashing, reline open and closed valleys, and rebuild chimney details where the metal corroded through or was never soldered.
When the slate is sound but the fasteners have gone, the roof can often be lifted, refastened over new underlayment, and relaid instead of replaced. When the deck is failing, we tear off and rebuild.
Synthetic slate is a molded composite shingle made to read as natural slate at a lower installed weight. It is the path we walk through where framing or budget rules out quarried stone.
Get in TouchA slate roof is heavier than the asphalt roof it usually replaces, so the structure underneath has to carry it before any stone goes on top. In Highland Park, that is settled by the town’s own code, not by a contractor’s judgment. The Town of Highland Park adopts the International Residential Code, 2024 edition, in Article 3.08 of its Code of Ordinances, which also requires a building permit and the registration of general contractors before residential work begins.
That path changes what a slate job is here. In a jurisdiction with a lighter touch, a covering swap can be a crew, a dumpster, and a weekend. In Highland Park, it is a permitted, inspected job run by a registered contractor, and the load that covering puts on existing framing is a question the code expects answered.
This bites harder on slate than on anything else, because slate outlives the assembly holding it down. Fasteners corrode and let go, a condition roofers call nail sickness, and flashings fail at the seams long before the stone gives out. A roof that looks finished from the street is often one whose slate is serviceable and whose metal is not.
We at Acorn Roofing sort that out first: whether the framing can carry the covering you want, whether the existing slate can be salvaged, and what the town will want on the permit. That order keeps a slate project from becoming a tear-off nobody needed.
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The cost of slate work in Highland Park is driven by the condition of what is already on the roof, not by square footage. These are the factors that move an estimate:
We do not publish ranges we cannot stand behind. The estimate follows the inspection.
Get in TouchIn a recent review, Sue Woodfield said she called us about work another roofing company had skipped. Chimney and flashing details are where slate roofs leak first, and they are what a previous contractor is likeliest to have sealed over instead of replaced.
“The company was fast and efficient. They replaced flashing and sealed around the chimney and other locations that the previous roofing company had neglected. Super polite and professional workers!”
Her account highlights metalwork done properly on a roof another company had already been on. That is the sequence we follow on slate, where flashing decides how long the roof lasts. Read Sue Woodfield’s review on Google.
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Yes. The Town of Highland Park requires a building permit for residential work under its residential code, and it requires general contractors to be registered with the town. That holds for a full slate replacement and for structural repair beneath the covering. Your contractor should be pulling the permit, not you.
Can my Highland Park home carry a slate roof if it does not have one now?
Sometimes, and it has to be checked before anything is ordered. Slate is heavier than asphalt shingles, so the framing and decking have to support the added dead load, which the town’s adopted residential code expects to be answered on the permit. We assess the structure and tell you whether natural slate, reinforcement, or synthetic slate is right.
Is a cracked or slipped slate a repair, or a sign the whole roof is done?
Usually a repair. Slate roofs are built to accept individual slate replacement, so a few slipped or broken pieces after a storm is maintenance rather than failure. What decides repair against replacement is the fasteners, the flashings, and the deck underneath, often sound long after the roof looks tired.
Does hail damage slate roofs in Highland Park?
It can, and it damages slate differently than asphalt. Slate is stone, so hail cracks individual slates rather than stripping granules across a slope, which leaves damage scattered and easy to miss from the ground. After a North Texas hail event, we inspect piece by piece and document every fracture for your carrier.
Why should I not walk my own slate roof to look at the damage?
Slate cracks under concentrated weight, so walking it to inspect it creates more damage than it finds. Add the fall risk on a steep Highland Park roof and it is not homeowner work. We inspect from ladders, hook boards, and roof jacks, and send you the photographs.
