Underlayment
Underlayment and ice barrier go down before the starter course goes on.
Slate Roofing
Slate Roof Installation Clark, NJ
Slate roof installation in Clark is about more than the stone: the slate grade, deck, underlayment, nails, headlap and flashing all decide whether the roof lasts a century. Dial (908) 562-6899 to talk with a local roofer about a new slate roof.
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.
Before ordering slate, the roof framing needs a hard look. Because slate is so heavy, rafters or trusses are checked, and reinforced if needed, before a conversion from a lighter roof. Slate also needs a solid deck and a slope of at least 4 in 12 under typical building codes.
A slate roof is only as long lived as its nails and metal. Slates are hung on two copper nails each, set just right so the slate is held but not clamped, since a nail driven too hard cracks the slate. Copper valleys and flashing are standard on slate, since lesser metals wear out decades before the stone does.
If the problem goes deeper than it first looked, a Clark roofer may also recommend slate roof replacement or slate roof repair.
Looking for Clark slate roof installation? Call (908) 562-6899 to talk to a local roofer.
Call nowThe process
What happens during a slate roof installation
A slate roof is built slowly and by hand, one course at a time.
Check the structure
The roofer confirms the framing and deck can carry the slate, helps choose a grade, size and thickness, and lays out the pattern and exposure. Exposure is the slate length minus the headlap, divided by two.
Lay the underlayment
Underlayment goes over a solid deck, with ice barrier at the eaves where codes require it. Edge metal goes on along the eaves and rakes.
Set the starter course
The roofer lays a starter course over a cant strip so the bottom row sits flat and sheds water like the rest. Joints in the first course are offset from the starter below.
Nail the field
Course by course, slates are set with offset joints and the right headlap, each hung on two copper or stainless nails. Lower pitches get more headlap, and very steep pitches can use less.
Flash the roof
Copper step flashing is woven in along walls and dormers, counter flashing is set into chimney mortar joints and valleys are lined with copper. Snow guards help hold snow on the roof, since snow slides off smooth slate in heavy sheets.
Finish the ridge
Ridges and hips are finished with a saddle or combed ridge, mitered or Boston hips, or copper ridge caps. Spare slates from the same lot are left for future repairs.
What is included
Parts of a slate roof installation
Copper flashing
Open copper valleys and step flashing are installed to match the life of the slate.
Ridge finish
Snow guards keep snow from sliding off in sheets with spare slate left for repairs.
Structural review
Slate is chosen by grade, size, thickness and color before any stone is ordered.
Copper fasteners
Slates are nailed loose enough to hang which keeps water out at every joint.
Related service
Natural Slate Roofing Clark, 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 does not burn, it resists rot and insects, and good slate barely changes over generations. Each slate is slightly different in thickness and texture, which gives the roof its handmade look.
Natural slate roofing in Clark is a long term choice, so it pays to match the slate grade to how long you want the roof to last. 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
In Clark, new slate is installed both to match older slate roofs and on newer homes built for a long lasting roof. Owners in Clark and neighboring communities such as Rahway, Colonia, Garwood and Cranford often choose slate to match the character of an older home, and good layout and copper details are what let the roof last for generations.
Need slate roof installation around Clark? Call (908) 562-6899 for a Clark roofer who serves the towns around it too.
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. 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. Strong coastal storms push rain into every weak spot at the flashing and valleys. Most homeowners in Clark, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why not wait
Drier ceilings
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Familiar with local homes
Local roofers see the same roofs and storm damage across Clark and nearby towns.
Know what happens next
Ask your questions before you agree to anything.
Slate Roof Installation questions
Can my house support a slate roof?
Natural slate is heavy, often comparable to tile and several times the weight of shingles. Homes built for slate carry it fine, but a house framed for shingles may need an engineer and added framing before switching. Thinner slate or synthetic slate can be options where the framing falls short.
Do slate roofs need snow guards?
Slate is smooth and steep, which lets snow slide off suddenly, and snow guards prevent that. They matter most over doorways, walkways, decks and lower roofs. Where snow is rare, they may not be needed.
What nails should be used for slate?
Copper and stainless nails resist corrosion for as long as the slate lasts. Rusted steel nails are the reason so many older slate roofs have slipped slates. Each slate gets two nails, driven so the slate hangs without being clamped.
Which is better, hard or soft slate?
Slates vary by quarry, and hard slates outlast soft ones. Soft slate can still be a good choice and is easier to cut and shape, but it wears sooner. Pick based on the lifespan you want and the look of the house.
How long will a slate roof installation take?
Expect a longer schedule than shingles or tile, often several weeks for an average home. Dormers, valleys, turrets and framing upgrades all extend the schedule. Once the underlayment is down, the house is protected from rain.
More questions? Call (908) 562-6899
Related services
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 Repair
Slate roof repairs done with a slate ripper, copper hooks and matching slate rather than tar, without damaging the sound slate around the repair.
Learn moreRoof Installation
New roof installation done in the right order with the right details, whether it is asphalt shingles, metal or another material.
Learn moreRoofing Contractor
A local roofing contractor for repairs, replacements, inspections and new roofs on homes, so you know who is on your roof and what they will do.
Learn more
Looking for something else?
See all roofing servicesTalk to a Clark roofer about slate roof installation
Call now for Clark slate roof installation and help in the towns around it.