Old patch removal
Roof cement over slates and seams is replaced with real repairs which also improves the look of the roof.
Slate Roofing
Slate Roof Repair Harrison, NJ
A roofer in Harrison can repair a slate roof by replacing broken slates, rehanging slipped ones on copper hooks and renewing the flashing and valleys where most slate leaks start. Dial (551) 348-3304 to talk with a local roofer about the repair.
Natural slate can last a century or more, so most slate repairs deal with what holds it on and what seals it. Original iron or steel nails rust through, flashing corrodes and valley metal wears thin, and slates then slip, crack or let water past. When nails rust through, slates slide out of place and leave gaps, a problem sometimes called nail sickness.
Slate repair is a specialty, and the methods matter. Roofers cut the hidden nails with a slate ripper, set a matching slate and fasten it with a hook or a covered copper nail. Roof cement smeared over cracks and seams is a common bad repair that traps water and makes proper repairs harder later.
Stay off the roof yourself. Slate cracks under foot, especially older slate, and it is slick when wet or icy, so roofers work from ladders hooked over the ridge and roof brackets rather than walking on the stone. From the yard, note any missing or slipped slates, flaking surfaces and rusted metal at valleys or chimneys.
Depending on what the roofer finds, slate roof repair in Harrison, NJ can go hand in hand with slate roof replacement and slate roof installation.
Looking for Harrison slate roof repair? Call (551) 348-3304 to talk to a local roofer.
Call nowThe process
How slate roof repair works
Good slate repair keeps foot traffic off the stone and leaves no exposed nails.
Set safe access
Access is set up with ridge hook ladders and staging so nobody has to walk on the slate. Slate is never worked on while it is wet or icy.
Pin down the source
Leaks are traced back to their source, which on slate is often a valley, a flashing joint or a cluster of slipped slates. If many slates are slipping, it tells the roofer the nails are failing roof wide.
Cut the old nails
With a slate ripper, the roofer cuts the nails holding the broken slate and draws it out. Nothing around the repair has to come off.
Fit matching slate
The new slate goes in and is hung on a slate hook, or nailed through the gap above and covered with a copper bib. Matching is easiest with salvaged slate of a similar type and age.
Repair the flashing
Corroded valley metal, step flashing and counter flashing at chimneys and walls are replaced, usually in copper, by lifting and resetting the slates around them. Copper is the traditional choice because it lasts about as long as hard slate.
What is included
Common slate roof repairs
Chimney flashing
Wall and chimney flashing is rebuilt instead of being covered with tar.
Valley repair
Leaking valleys are rebuilt with the slates relaid along each side.
Slate refastening
Loose slates are rehung on copper hooks where their nails rusted through.
Slate replacement
Damaged slates are swapped for sound ones matched in size, color and thickness.
Related service
Slate Roof Inspection Harrison, NJ
Inspecting slate is about telling a stone problem from a fastener or flashing problem. Key checks include the slate type, how many slates are cracked or delaminating, whether nails are rusting and how worn the valleys and flashings are. Tapping a slate is a quick test: sound slate rings, worn slate thuds.
For a slate roof inspection in Harrison, much of the surface can be checked from a ladder, with binoculars and with drone footage, so the stone is not walked on. The attic is checked as well for stains, daylight and rotted sheathing boards. The result should tell you how many repairs are needed now, what can wait and how much life the slate has left.
Related service
Slate Roofing Company Harrison, NJ
Choosing a slate roofing company matters more than with most roofs, because slate needs its own tools, methods and experience. Good questions include how they remove broken slate, how they fasten replacements and how they avoid walking on the roof. Be wary of anyone who wants to tar the roof or tear off a roof with mostly sound slate at the first visit.
A slate roofing company that works in Harrison should be able to describe recent slate repairs and where it sources matching slate. Matching size, thickness and color is what makes a repair disappear into the roof. Call (551) 348-3304 to talk with a roofer who works on slate.
Local help
Slate Roof Repair Near Me
Slate roofs in Harrison are mostly found on older homes, churches and historic buildings, along with some newer homes built with slate on purpose. On older slate roofs in Harrison and nearby towns like Newark, Kearny, North Arlington and East Orange, the most common repairs are slipped slates from rusted nails and leaking valleys or chimney flashing, which is why finding a roofer who knows slate is worth the extra effort.
Need slate roof repair around Harrison? Call (551) 348-3304 for a Harrison roofer who serves the towns around it too.
How the weather here affects roofs around Harrison
Cold winters bring snow, ice and a long stretch of freezing nights. Heat escaping from the attic melts snow on the upper roof, and the water refreezes at the colder eaves, which is how ice dams form and back water up under the shingles. Coastal storms and heavy spring rain drive water sideways into flashing, valleys and old chimneys. Most homeowners in Harrison, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why act early
Less damage
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Local knowledge
Roofers in Harrison know the roof types and weather wear common in local homes.
Straight answers
Ask your questions before you agree to anything.
Slate Roof Repair FAQ
Is it safe to walk on a slate roof?
Slate is not made to be walked on. The stone cracks under weight, especially older slate, and it is very slippery when wet, icy or covered in moss. Slate roofers use hook ladders and roof brackets to keep their weight off the slate, so leave the climbing to them.
What is the lifespan of a slate roof?
Depending on the type of slate, a roof can last anywhere from several decades to well over a hundred years. The nails and flashing need attention long before the slate does. Kept up with repairs, a slate roof can serve for generations.
Is roof cement a good fix for a slate roof?
Tar and roof cement are poor fixes for slate. They dry out and crack, hold moisture against the slate and add work for the next repair. The lasting fix is replacing the broken slate and renewing the flashing with metal.
Why are slates sliding off my roof?
The nails holding each slate are the usual culprit. Many older slate roofs used nails that corrode in time, and once a nail fails, the slate slides out of its row. Each slipped slate is rehung with a slate hook or covered copper nail, and if slipping is widespread, the roof may need to be stripped and relaid with new nails.
Can a slate roof be repaired instead of replaced?
Most slate roofs can be repaired as long as the stone itself is still sound. Replacement makes sense when a large share of the slate is flaking, soft or breaking, or when nails are failing across the whole roof. An inspection tells you which way your roof leans.
More questions? Call (551) 348-3304
Other services that may help
Slate Roof Replacement
Replacing a slate roof that has reached the end of its life, by relaying the sound slate on new nails or installing new natural or synthetic slate, so the new roof lasts as long as the old one did.
Learn moreSlate Roof Installation
New slate roofs planned around the slate grade, the framing and the details that let stone last a century, so the nails and flashing last as long as the slate.
Learn moreFlashing Repair
Fixing the metal flashing at walls, dormers, valleys and roof edges, before hidden rot spreads into walls and decking.
Learn moreRoof Leak Repair
Finding where water gets through the roof and sealing it at the source, with the damage underneath checked too.
Learn more
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