Valley metal
Valleys, walls, chimneys and pipes are flashed in copper as the slate goes on.
Slate Roofing
Slate Roof Installation Garfield, NJ
A Garfield slate roofer can help you choose a slate, plan the layout and install the roof with fasteners and flashing that last as long as the stone. Dial (551) 348-2856 to talk with a local roofer about a new slate roof.
A slate roof starts with picking the stone. Different slates vary in durability as well as color, from long lived hard slate to softer slate with a shorter service life. Some slates hold their color, called unfading, while weathering slates shift in tone over the first years.
Slate is heavy, so the house has to be ready for it. Natural slate is among the heaviest roof coverings, so framing built for shingles may need reinforcement before slate goes on. Codes generally call for slate only on slopes of 4 in 12 or steeper, over solid sheathing.
How the slate is hung decides how long it lasts. 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.
Many slate roof installation calls in Garfield also turn up a need for slate roof replacement or slate roof repair.
Dealing with this in Garfield, NJ right now? Call (551) 348-2856 and describe the problem to a roofer who works in Garfield.
Call nowThe process
How slate roof installation works
Every slate is placed and nailed by hand, and the layers below matter as much.
Choose the slate
The job begins with the structure, the choice of slate and a layout that sets the exposure for every course. The exposure works out to half of what is left once the headlap is taken from the slate length.
Lay the underlayment
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. Joints in the first course are offset from the starter below.
Lay each course
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 details
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.
Close the top
Hips and ridges are closed with slate laid in a saddle or combed pattern or capped with copper. Spare slates from the same lot are left for future repairs.
What is included
A complete slate roof system
Underlayment
A solid deck is covered with underlayment lapped to shed water to the eaves.
Snow guards
Ridges and hips are finished in slate or copper with spare slate left for repairs.
Structural review
An engineer or span check confirms the structure and reinforcement is planned if needed.
Proper headlap
Every slate hangs on two copper or stainless nails so they lie flat without cracking.
Related service
Natural Slate Roofing Garfield, 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.
For a natural slate roof in Garfield, the grade, thickness and color of the slate shape both the look and the lifespan. Synthetic slate is lighter and easier to install, but it does not carry the same lifespan as quality natural stone. Seeing actual slate samples, not just a brochure, helps you pick the right color and texture.
Local help
Slate Roof Installation Near Me
Around Garfield, slate installations range from additions matched to an original slate roof to full new slate roofs on custom homes. From Garfield out to Lodi, Elmwood Park, Wallington and Passaic, a slate roof goes on slowly and by hand, so planning ahead with the roofer matters, while snow and storms make fastening and snow guards part of the design.
Need slate roof installation around Garfield? Call (551) 348-2856 for a Garfield roofer who serves the towns around it too.
What the local climate does to a roof
Cold winters bring snow, ice and a long stretch of freezing nights. When warm attic air melts the snow, the meltwater runs down and freezes again at the eaves, building ice dams that push water up under the shingles. Strong coastal storms push rain into every weak spot at the flashing and valleys. Most homeowners in Garfield, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why not wait
Smaller repairs
Small roof problems caught early usually stay small repairs.
Roofers who know Garfield
Roofers in Garfield know the roof types and weather wear common in local homes.
Clear next steps
Ask the roofer about the cause, the options and the estimate before work starts.
Slate Roof Installation questions
What nails should be used for slate?
The nails have to last as long as the slate, which is why copper or stainless steel is standard. 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.
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. Homes built for slate carry it fine, but a house framed for shingles may need an engineer and added framing before switching. Where framing is limited, thinner slate or a lighter synthetic slate may work.
Why do slate roofs have snow guards?
Slate is smooth and steep, which lets snow slide off suddenly, and snow guards prevent that. They are most important above entries, walks and lower roofs. Where snow is rare, they may not be needed.
What is the difference between hard and soft slate?
The main difference is durability: hard slate lasts longer than soft slate. 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 does it take to install a slate roof?
A slate roof takes considerably longer than a shingle roof, commonly several weeks. Dormers, valleys, turrets and framing upgrades all extend the schedule. The roof is dried in early, so the house stays protected during the work.
More questions? Call (551) 348-2856
Related services
Slate Roof Replacement
Full slate roof replacement when the stone, the nails or the flashing have failed across the roof, planned around the weight and look of the home.
Learn moreSlate Roof Repair
Repairs for natural slate roofs, from a single broken slate to failed copper valleys, without damaging the sound slate around the repair.
Learn moreRoof Installation
Putting on a new roof the way the material maker intends, with ventilation and flashing planned in from the start.
Learn moreRoofing Contractor
Residential roofing work from a single leak to a full tear-off, so you know who is on your roof and what they will do.
Learn more
Looking for something else?
See all roofing servicesGet slate roof installation help in Garfield
Call now for Garfield slate roof installation and help in the towns around it.