Valley metal
Long life metal is used at every flashing point instead of metals that wear out early.
Slate Roofing
Slate Roof Installation Kenilworth, NJ
A roofer in Kenilworth can install a natural slate roof, from checking that the framing can carry the stone to hanging each slate on copper nails with the right headlap and finishing the valleys and ridges in copper. One call to (908) 613-5001 reaches a nearby slate installer.
A slate roof starts with picking the stone. Slates are graded by how long they last, with hard slate outlasting soft slate, and they come in a range of natural colors. Some slates hold their color, called unfading, while weathering slates shift in tone over the first years.
The structure comes before the stone. A slate roof weighs several times as much as asphalt shingles, and thicker slates weigh more, so a home switching from shingles often needs an engineer to review the rafters and sometimes add framing. Codes generally call for slate only on slopes of 4 in 12 or steeper, over solid sheathing.
The fasteners and flashing are what make a slate roof last. Each slate is fastened with two copper or stainless nails driven so the slate hangs on them rather than being pinned tight, which lets the stone sit flat without cracking. Copper flashing at valleys, walls and chimneys is the usual match, because it lasts on the same timescale as the stone.
If the problem goes deeper than it first looked, a Kenilworth roofer may also recommend slate roof replacement or slate roof repair.
Looking for Kenilworth slate roof installation? Call (908) 613-5001 to reach a nearby roofing contractor.
Call nowThe process
How slate roof installation works
A slate roof is built slowly and by hand, one course at a time.
Plan the roof
The job begins with the structure, the choice of slate and a layout that sets the exposure for every course. Exposure is the slate length minus the headlap, divided by two.
Prepare the deck
Solid sheathing is checked and covered with underlayment, plus self-adhered membrane at eaves and valleys in cold climates. Edge metal goes on along the eaves and rakes.
Start at the eave
At the eaves, a starter row and a raised cant strip set the first course at the correct pitch. The first exposed course goes directly over the starter, with its joints offset.
Nail the field
Course by course, slates are set with offset joints and the right headlap, each hung on two copper or stainless nails. Headlap is set by slope, with more on lower pitches and less on very steep ones.
Flash the details
Step flashing, counter flashing and open copper valleys are built into the roof course by course. Snow guards help hold snow on the roof, since snow slides off smooth slate in heavy sheets.
Finish the ridge
The ridge is finished in slate or copper, and hips are laid in a traditional pattern. A stock of spare slate is left with the owner for later repairs.
What is included
A complete slate roof system
Ridge finish
The ridge and hips are capped in a traditional pattern to close the top of the roof.
Deck preparation
Sheathing is repaired and dried in with ice barrier at eaves where needed.
Proper headlap
Each course gets the headlap the slope calls for which keeps water out at every joint.
Structural review
The framing is checked for the weight of slate and reinforcement is planned if needed.
Related service
Natural Slate Roofing Kenilworth, NJ
Natural slate roofing is quarried stone split into thin sheets, and its long life comes from the stone itself, not from coatings or additives. It is fireproof, does not rot and holds up to weather for generations when it is properly hung. Each slate is slightly different in thickness and texture, which gives the roof its handmade look.
Choosing natural slate for a Kenilworth home means planning for a roof that may outlast everyone who installed it. Some owners compare natural slate with synthetic slate, which weighs less but lasts far fewer years. Ask the roofer to show real slate samples before ordering so you see the true color and texture.
Local help
Slate Roof Installation Near Me
Slate roofs in Kenilworth are most often seen on older and historic homes, but new slate still goes onto custom homes and additions. Owners in Kenilworth and neighboring communities such as Roselle Park, Union, Cranford and Roselle often choose slate to match the character of an older home, and snow guards and copper flashing are worth planning for from the start.
For slate roof installation in Kenilworth, NJ or nearby towns like Roselle Park, Union, Cranford and Roselle, call (908) 613-5001 to reach a roofer who covers your street.
Roofs in this climate
Winters here are long and cold, with snow on the roof for weeks at a time and plenty of nights below freezing. When warm attic air melts the snow, the meltwater runs down and freezes again at the eaves, which is how ice dams form and back water up under the shingles. Strong coastal storms push rain into every weak spot at the flashing and valleys. Most homeowners in Kenilworth, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why not wait
Smaller repairs
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Local knowledge
Local roofers see the same roofs and storm damage across Kenilworth and nearby towns.
Clear next steps
Ask the roofer about the cause, the options and the estimate before work starts.
Common questions about slate roof installation
How heavy is a slate roof?
A slate roof weighs far more than shingles, with the exact load depending on the thickness of the slate. Whether a particular house can carry it depends on the framing, so a structural check comes first on any conversion. Thinner slate or synthetic slate can be options where the framing falls short.
How long will a slate roof installation take?
Expect a longer schedule than shingles or tile, often several weeks for an average home. Complex rooflines, copper detailing and structural work add time. The roof is dried in early, so the house stays protected during the work.
Do slate roofs need snow guards?
Snow guards are common on slate because snow slides off smooth stone in heavy sheets that can damage gutters and hurt people below. They are most important above entries, walks and lower roofs. In places with little snow, they are less of a concern.
Which is better, hard or soft slate?
Hard slate is denser and can last well over a century, while soft slate gives a shorter, though still long, service life. Soft slate is easier to work, though it is not meant to last as long. Pick based on the lifespan you want and the look of the house.
Why are copper nails used on slate roofs?
Copper and stainless nails resist corrosion for as long as the slate lasts. Steel nails rust out and cause slates to slip, the most common failure on older slate roofs. Two nails hold each slate, set so it hangs loosely and does not crack.
More questions? Call (908) 613-5001
Often needed together
Slate Roof Replacement
Slate roof replacement that strips the roof, sorts reusable slate and rebuilds the deck, underlayment and copper flashing, planned around the weight and look of the home.
Learn moreSlate Roof Repair
Slate roof repairs done with a slate ripper, copper hooks and matching slate rather than tar, using methods and materials that match the original roof.
Learn moreRoof Installation
Installing a new roof layer by layer, from drip edge and underlayment to flashing, vents and the finished roofing, so it sheds water at every edge and seam.
Learn moreRoofing Contractor
Residential roofing work from a single leak to a full tear-off, from the first inspection through cleanup.
Learn more
Looking for something else?
See all roofing servicesTalk to a Kenilworth roofer about slate roof installation
Call (908) 613-5001 to talk to a roofer serving Kenilworth, NJ.