Proper headlap
Each course gets the headlap the slope calls for so they lie flat without cracking.
Slate Roofing
Slate Roof Installation South Orange, NJ
A roofer in South Orange 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. Call (973) 858-1859 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. 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. Two nails per slate, copper or stainless and never driven tight, let the slate hang freely and keep it from cracking. Copper flashing at valleys, walls and chimneys is the usual match, because it lasts on the same timescale as the stone.
Depending on what the roofer finds, slate roof installation in South Orange, NJ can go hand in hand with slate roof replacement and slate roof repair.
Looking for South Orange slate roof installation? Call (973) 858-1859 and describe the problem to a roofer who works in South Orange.
Call nowThe process
What happens during a slate roof installation
A slate roof is built slowly and by hand, one course at a time.
Plan the roof
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. The exposure works out to half of what is left once the headlap is taken from the slate length.
Dry in the roof
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.
Lay the starter
The roofer lays a starter course over a cant strip so the bottom row sits flat and sheds water like the rest. The first exposed course goes directly over the starter, with its joints offset.
Lay each course
The field slate goes on course after course with offset joints, consistent headlap and two nails per slate that are never driven tight. Headlap is set by slope, with more on lower pitches and less on very steep ones.
Flash the roof
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.
Close the top
Ridges and hips are finished with a saddle or combed ridge, mitered or Boston hips, or copper ridge caps. A stock of spare slate is left with the owner for later repairs.
What is included
A complete slate roof system
Snow guards
The ridge and hips are capped in a traditional pattern with spare slate left for repairs.
Underlayment
Underlayment and ice barrier go down lapped to shed water to the eaves.
Slate selection
Slate is chosen by grade, size, thickness and color before any stone is ordered.
Copper flashing
Long life metal is used at every flashing point to match the life of the slate.
Related service
Natural Slate Roofing South Orange, NJ
Natural slate roofing uses stone that has been quarried and split into slates, with no coatings or binders to wear off. 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 South Orange is a long term choice, so it pays to match the slate grade to how long you want the roof to last. 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
In South Orange, new slate is installed both to match older slate roofs and on newer homes built for a long lasting roof. For homes in South Orange and nearby towns like Vauxhall, East Orange, Union and Short Hills that were framed for shingles, the structural check is what decides whether slate is practical, while snow and storms make fastening and snow guards part of the design.
Searching for slate roof installation near me from South Orange or Vauxhall, East Orange, Union and Short Hills? Call (973) 858-1859 to talk to a roofer who works in your part of town.
What the local climate does to a roof
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, 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 South Orange, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why fix it now
Less damage
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Roofers who know South Orange
Roofers in South Orange 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.
Common questions about slate roof installation
How long will a slate roof installation take?
Slate goes on slowly because every slate is laid and nailed by hand, so most homes take several weeks. Dormers, valleys, turrets and framing upgrades all extend the schedule. Once the underlayment is down, the house is protected from rain.
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.
Which is better, hard or 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.
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. Where framing is limited, thinner slate or a lighter synthetic slate may work.
Why do slate roofs have snow guards?
Smooth slate sheds snow all at once, so snow guards hold it in place to melt gradually. They matter most over doorways, walkways, decks and lower roofs. In places with little snow, they are less of a concern.
More questions? Call (973) 858-1859
Related services
Slate Roof Replacement
Replacing a slate roof that has reached the end of its life, by relaying the sound slate on new nails or installing new natural or synthetic slate, 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
Putting on a new roof the way the material maker intends, so it sheds water at every edge and seam.
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 South Orange roofer about slate roof installation
Call (973) 858-1859 to talk to a roofer serving South Orange, NJ.