Valley metal
Open copper valleys and step flashing are installed to match the life of the slate.
Slate Roofing
Slate Roof Installation Glen Ridge, NJ
A Glen Ridge 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. Call (862) 357-6041 to reach a local roofer who installs slate.
Slate is not one material but many, and choosing well comes first. Hard slate can last well over a century and soft slate somewhat less, and colors range from grays and blacks to greens, purples, reds and mottled blends. Unfading slate keeps its color, and weathering slate mellows to new shades with exposure.
Before ordering slate, the roof framing needs a hard look. 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. Building codes typically require a minimum slope of 4 in 12 for slate, laid over a solid deck.
How the slate is hung decides how long it lasts. 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 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 Glen Ridge also turn up a need for slate roof replacement or slate roof repair.
Need slate roof installation in Glen Ridge? Call (862) 357-6041 to talk to a local roofer.
Call nowThe process
What happens during a slate roof installation
Here is how a slate roofer typically installs a new slate roof.
Check the structure
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.
Prepare the deck
The deck is sheathed or repaired, then covered with underlayment, with ice barrier membrane at the eaves and in valleys where the climate calls for it. Drip edge and a cant strip at the eaves come next.
Start at the eave
A starter course goes on at the eave over a cant strip, so the first exposed course lies at the same angle as the rest. 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. Lower pitches get more headlap, and very steep pitches can use less.
Flash the details
Valleys, walls, chimneys and pipes are flashed in copper or another long life metal as the slate goes on. 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. A stock of spare slate is left with the owner for later repairs.
What is included
What slate roof installation includes
Ridge finish
The ridge and hips are capped in a traditional pattern to protect people, gutters and plantings below.
Deck preparation
A solid deck is covered with underlayment lapped to shed water to the eaves.
Proper headlap
Each course gets the headlap the slope calls for so the fasteners last as long as the stone.
Slate selection
An engineer or span check confirms the structure before any stone is ordered.
Related service
Natural Slate Roofing Glen Ridge, NJ
Natural slate roofing uses stone that has been quarried and split into slates, with no coatings or binders to wear off. 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 Glen Ridge home means planning for a roof that may outlast everyone who installed it. Synthetic slate is lighter and easier to install, but it does not carry the same lifespan as quality natural stone. 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 Glen Ridge are most often seen on older and historic homes, but new slate still goes onto custom homes and additions. For homes in Glen Ridge and nearby towns like East Orange, North Arlington, Caldwell and Clifton that were framed for shingles, the structural check is what decides whether slate is practical, and snow guards and copper flashing are worth planning for from the start.
Need slate roof installation around Glen Ridge? Call (862) 357-6041 for a Glen Ridge roofer who serves the towns around it too.
How the weather here affects roofs around Glen Ridge
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. Coastal storms and heavy spring rain drive water sideways into flashing, valleys and old chimneys. Most homeowners in Glen Ridge, 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.
Roofers who know Glen Ridge
Roofers in Glen Ridge 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.
Slate Roof Installation FAQ
How long does it take to install a slate roof?
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. The roof is dried in early, so the house stays protected during the work.
How heavy is a slate roof?
Slate is among the heaviest roof coverings, several times the weight of asphalt shingles, and thicker slate weighs more. 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.
Do slate roofs need snow guards?
Smooth slate sheds snow all at once, so snow guards hold it in place to melt gradually. 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?
Slates vary by quarry, and hard slates outlast soft ones. 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.
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. 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 (862) 357-6041
Related services
Slate Roof Replacement
Full slate roof replacement when the stone, the nails or the flashing have failed across the roof, with salvage of good slate wherever possible.
Learn moreSlate Roof Repair
Replacing cracked, slipped and missing slates, renewing worn flashing and fixing the nail and valley problems behind most slate leaks, so a roof built to last a century keeps going.
Learn moreRoof Installation
New roof installation done in the right order with the right details, with ventilation and flashing planned in from the start.
Learn moreRoofing Contractor
Finding the right roofer for the job and knowing what to ask, with a written scope before any work starts.
Learn more
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