Broken slate repair
Broken slates are cut out and new ones hung in their place without disturbing the slates around them.
Slate Roofing
Slate Roof Repair Rahway, NJ
Most slate roofs in Rahway that leak still have plenty of good slate, and the fix is usually new slates in a few spots and new flashing, not a new roof. Dial (908) 562-6861 to talk with a local roofer about the repair.
On a slate roof, the stone is usually the last thing to fail. Original iron or steel nails rust through, flashing corrodes and valley metal wears thin, and slates then slip, crack or let water past. 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. Coating slate with tar or roof cement only hides problems and stains the stone.
Do not climb onto a slate roof to look. 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 ground, binoculars show slipped slates, missing pieces and rusted flashing well enough to describe on the phone.
Many slate roof repair calls in Rahway also turn up a need for slate roof replacement or slate roof installation.
Need slate roof repair in Rahway? Call (908) 562-6861 to talk to a local roofer.
Call nowThe process
How slate roof repair works
Here is how a slate roofer usually handles a repair.
Rig the roof
Before any repair, the roofer rigs ladders and brackets that keep feet off the stone. Work only happens when the roof is dry, since wet slate is slick.
Pin down the source
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.
Cut the old nails
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.
Set new 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. Salvaged slate of the same type and color often gives the closest match.
Renew the metal
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
Slate refastening
Loose slates are rehung on copper hooks so the coverage is whole again.
Valley replacement
Worn or rusted valley metal is replaced with the slates relaid along each side.
Tar cleanup
Old tar and roof cement patches are removed where possible so water can drain freely again.
Flashing repair
Step and counter flashing at chimneys, dormers and walls are renewed so joints stay watertight.
Related service
Slate Roof Inspection Rahway, NJ
A slate roof inspection decides whether the roof needs a few repairs or a bigger plan. The inspector looks at the type of slate, the share of broken, slipped or flaking pieces, the nails where slates are missing and the state of every valley and flashing. Tapping a slate is a quick test: sound slate rings, worn slate thuds.
A slate inspection on a Rahway home relies on ladders, binoculars and drone footage more than walking, to protect the slate. The attic is checked as well for stains, daylight and rotted sheathing boards. You should come away knowing whether the roof needs a repair, a section relaid or a long term replacement plan.
Related service
Slate Roofing Company Rahway, NJ
Slate is a specialty, and a slate roofing company should show it knows the trade. Ask whether the crew uses a slate ripper, slate hooks or copper nails with bibs, hook ladders instead of walking the roof and long life flashing metal. 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 Rahway should be able to describe recent slate repairs and where it sources matching slate. Salvaged slate that matches the original is the key to repairs that do not stand out. One call to (908) 562-6861 is a good place to start.
Local help
Slate Roof Repair Near Me
Around Rahway, most slate roofs date back decades, and many still have plenty of good slate left. Homes in Rahway and neighboring communities such as Avenel, Colonia, Linden and Iselin with original slate usually need nail and flashing repairs long before the stone itself wears out, which is why finding a roofer who knows slate is worth the extra effort.
Need slate roof repair around Rahway? Call (908) 562-6861 for a Rahway roofer who serves the towns around it too.
How the weather here affects roofs around Rahway
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, building ice dams that push water up under the shingles. Coastal storms and heavy spring rain drive water sideways into flashing, valleys and old chimneys. Most homeowners in Rahway, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why act early
Smaller repairs
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Local knowledge
Roofers in Rahway know the roof types and weather wear common in local homes.
Know what happens next
Ask the roofer about the cause, the options and the estimate before work starts.
Common questions about slate roof repair
Can a slate roof be repaired instead of replaced?
Slate roofs are built to be repaired one slate at a time. 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.
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. A real repair uses new slate and new flashing instead.
How long does a slate roof last?
Hard slate can last well over a century, while soft slate lasts a shorter but still long span. The nails and flashing need attention long before the slate does. With timely repairs, many slate roofs outlive several generations of owners.
Is it safe to walk on a slate roof?
Walking on slate is best avoided. Slate breaks easily underfoot and becomes dangerous when wet. Slate roofers use hook ladders and roof brackets to keep their weight off the slate, so leave the climbing to them.
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.
More questions? Call (908) 562-6861
Other services that may help
Slate Roof Replacement
Full slate roof replacement when the stone, the nails or the flashing have failed across the roof, so the new roof lasts as long as the old one did.
Learn moreSlate Roof Installation
Slate roof installation from choosing hard or soft slate to the final copper ridge, built to match the life of the stone.
Learn moreFlashing Repair
Flashing repairs at the joints where most roof leaks start, so water runs onto the shingles instead of into the wall.
Learn moreRoof Leak Repair
Finding where water gets through the roof and sealing it at the source, so the stain on the ceiling stops growing.
Learn more
Looking for something else?
See all roofing servicesTalk to a Rahway roofer about slate roof repair
Call (908) 562-6861 for a local roofer in Rahway and nearby towns.