Valley repair
Valleys get new copper or other long life metal to carry water off the roof again.
Slate Roofing
Slate Roof Repair Cresskill, NJ
A roofer in Cresskill 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. Call (551) 395-0321 to reach a local roofer who works on slate.
Natural slate can last a century or more, so most slate repairs deal with what holds it on and what seals it. The nails that hang each slate and the metal at valleys and walls are what wear out, long before most of the stone does. A slipped slate in the gutter is a common sign that the nails, not the stone, are failing.
Slate needs repairs done with slate methods, not shingle methods. A slate ripper slides under the broken slate to cut its nails, then a new slate of matching size, thickness and color is slipped in and held with a copper or stainless slate hook or a copper nail covered by a metal bib. Roof cement smeared over cracks and seams is a common bad repair that traps water and makes proper repairs harder later.
Look from the ground, not from the roof. 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.
Many slate roof repair calls in Cresskill also turn up a need for slate roof replacement or slate roof installation.
Looking for Cresskill slate roof repair? Call (551) 395-0321 to talk to a local roofer.
Call nowThe process
The slate roof repair process
Good slate repair keeps foot traffic off the stone and leaves no exposed nails.
Stage from ladders
Access is set up with ridge hook ladders and staging so nobody has to walk on the slate. Work only happens when the roof is dry, since wet slate is slick.
Find the cause
The roofer checks whether the problem is a single broken slate, rusted nails across a slope or flashing at a valley, chimney or wall. Widespread slipping points to nail failure rather than isolated damage.
Remove broken slate
A slate ripper slides under the broken slate, hooks each nail and cuts it so the slate slides out without disturbing its neighbors. The slates above stay in place the whole time.
Fit matching slate
A matching slate is fitted and secured with a hook or a covered copper nail so no fastener is exposed. Matching is easiest with salvaged slate of a similar type and age.
Fix the valleys
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
What slate roof repair covers
Broken slate repair
Cracked or missing slates are replaced with matching slate without disturbing the slates around them.
Tar cleanup
Failed tar repairs are cleaned off and done properly which also improves the look of the roof.
Slate refastening
Loose slates are rehung on copper hooks so the coverage is whole again.
Chimney flashing
Step and counter flashing at chimneys, dormers and walls are renewed in metal that lasts as long as slate.
Related service
Slate Roof Inspection Cresskill, NJ
Before repairs, an inspection sorts out whether the slate itself is sound or nearing the end. 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 Cresskill, much of the surface can be checked from a ladder, with binoculars and with drone footage, so the stone is not walked on. Inside, the attic shows where water has gotten through and whether the board sheathing is sound. 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 Cresskill, NJ
Slate is a specialty, and a slate roofing company should show it knows the trade. Ask about their tools and methods: slate rippers, hooks, staging and the flashing metals they use. Be wary of anyone who wants to tar the roof or tear off a roof with mostly sound slate at the first visit.
For Cresskill homeowners, a good sign is a slate roofer who keeps a stock of salvaged slate and talks about repair before replacement. Salvaged slate that matches the original is the key to repairs that do not stand out. Call (551) 395-0321 to talk with a roofer who works on slate.
Local help
Slate Roof Repair Near Me
In Cresskill, slate tends to cap older and historic homes, and many of those roofs are still on their original stone. Homes in Cresskill and neighboring communities such as Demarest, Tenafly, Dumont and Closter with original slate usually need nail and flashing repairs long before the stone itself wears out, and storms that drop limbs on the roof add broken slates to the list.
For slate roof repair in Cresskill, NJ or nearby towns like Demarest, Tenafly, Dumont and Closter, call (551) 395-0321 to reach a roofer who covers your street.
How the weather here affects roofs around Cresskill
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 Cresskill, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why fix it now
Smaller repairs
Small roof problems caught early usually stay small repairs.
Familiar with local homes
Roofers in Cresskill know the roof types and weather wear common in local homes.
Clear next steps
Ask your questions before you agree to anything.
Common questions about slate roof repair
What causes slates to slip?
Slipped slates come from failed nails far more often than from broken stone. 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.
Do I need a new slate roof or just repairs?
Slate roofs are built to be repaired one slate at a time. It is when the slate is delaminating widely, or slipping everywhere, that a full strip and relay becomes the better plan. A slate inspection shows which situation you are in.
Can I walk on my slate roof?
Slate roofs should be kept free of foot traffic. Slate breaks easily underfoot and becomes dangerous when wet. Professionals work from ladders hooked over the ridge for this reason, and homeowners are safer looking from the ground.
What is the lifespan of a slate roof?
Hard slate can last well over a century, while soft slate lasts a shorter but still long span. Fasteners and flashing are what wear out first, which is why repairs keep slate roofs going so long. Kept up with repairs, a slate roof can serve for generations.
Can tar be used to repair slate?
Tar and roof cement are poor fixes for slate. They crack as they age, trap water against the stone and stain it, and they have to be scraped off before a proper repair can be done. A real repair uses new slate and new flashing instead.
More questions? Call (551) 395-0321
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, with salvage of good slate wherever possible.
Learn moreSlate Roof Installation
New slate roofs planned around the slate grade, the framing and the details that let stone last a century, for new homes, additions and full reroofs.
Learn moreFlashing Repair
Flashing repairs at the joints where most roof leaks start, before hidden rot spreads into walls and decking.
Learn moreRoof Leak Repair
Leak repairs that fix the entry point, not just the ceiling stain, so the stain on the ceiling stops growing.
Learn more
Looking for something else?
See all roofing servicesTalk to a Cresskill roofer about slate roof repair
Call (551) 395-0321 for a local roofer in Cresskill and nearby towns.