What Is the Best Roofing for Historic Homes in New Jersey?
The best roofing for historic homes in New Jersey is a period-appropriate covering — natural slate, clay tile, cedar shingle, or historic metal — matched in kind to the home's architectural era and to any local preservation district's review. The comparison weighs each material's authenticity, durability, and fit with the Secretary of the Interior's Standards.
What Is the Best Roofing for a Historic Home in New Jersey?
Natural slate, clay tile, cedar shingle, and copper rank highest for an NJ historic home because Standard 6 of the Secretary of the Interior's Standards directs repair or in-kind replacement of a historic roof, per the National Park Service.
Natural slate is the quarried-stone tile lasting 60–150 years (premium 100+ per the National Slate Association) suited to Victorian, Colonial Revival, and Gilded Age homes, clay tile is the fired terra-cotta tile lasting 100+ years suited to Spanish and Mission styles, cedar shingle is the wood shingle (shake 20–40 / shingle 30–50 years per the Cedar Shake & Shingle Bureau) for Craftsman-era homes, and copper is the standing-seam or flat-seam metal with a service life in excess of 100 years on a properly designed roof per the Copper Development Association.
Options Ranked
Natural Slate
60–150 year life (InterNACHI); premium 100+ (National Slate Association)
Best for pre-1920 Victorian, Colonial Revival, and Gilded Age homes
Clay Tile
100+ year life (InterNACHI); often 75+, many 100+ (TRI Alliance)
Best for Spanish Revival and Mission-style homes
Copper / Standing-Seam Metal
Copper 70+ (InterNACHI); over 100 years properly installed (CDA)
Best for Federal, Greek Revival, and farmhouse styles
Cedar Shingle / Shake
Shake 20–40, shingle 30–50 years (Cedar Shake & Shingle Bureau)
Best for Craftsman, bungalow, and early Colonial homes
Synthetic Slate
Simulated slate 10–35 years (InterNACHI); composite 40–50 (CertainTeed)
Best where budget prohibits natural slate, outside strict districts
Architectural Asphalt
25–35 year life (GAF); $6.50–$11.00/sq ft NJ (Josten Roofing)
Best for non-contributing or non-visible roofs (Brief 4)
Detailed Analysis
Which Materials Match the Secretary of the Interior's Standards?
Natural slate, clay tile, cedar shingle, and copper match the Secretary of the Interior's Standards under Standard 6, which directs that a distinctive historic roof be replaced in kind — matched in design, color, and texture — per the NPS.
Natural slate is repaired rather than replaced whenever possible per NPS Preservation Brief 29, with non-ferrous solid-copper or stainless-steel fasteners required because plain or galvanized steel rusts out before the slate, and the roof replaced only when 20% or more of the slates are broken, missing, or sliding, per Brief 29.
Clay tile is matched in profile, color, glaze, and texture — Spanish, Mission/barrel, pantile, or flat English shingle — per NPS Preservation Brief 30, fastened with copper nails or hangers, since a common failure mode is original copper nails replaced with iron nails that corrode and trigger roof failure.
Cedar shingle replacement matches the original size, shape, texture, and exposure rather than an aged look per NPS Preservation Brief 19, and uses hot-dipped zinc-coated, aluminum, or stainless-steel nails — not copper nails, because a chemical reaction between red cedar and copper shortens the roof's life; copper itself carries a service life in excess of 100 years on a properly designed standing-seam, batten-seam, or flat-seam roof, per the Copper Development Association and Brief 19.
Which Historic Roof Matches Each Period Style?
Natural slate, clay tile, cedar shingle, and copper each match distinct NJ period styles — slate on Victorian, clay tile on Spanish Revival, cedar on Craftsman, copper on Federal and Greek Revival — per NPS Preservation Brief 4.
Natural slate covers Victorian and Colonial Revival homes in scalloped, diamond, or multicolored patterns whose coursing and color variation are recorded before work begins, since Brief 4 directs that historic fabric be photographed, measured, and recorded for future reference.
Clay tile defines Spanish Revival and Mission-style roofs, where terra-cotta red is the most common color and the exact profile and glaze are reproduced, per NPS Preservation Brief 30, because subtle natural color variation is character-defining.
Cedar shingle matches Craftsman, bungalow, and early Colonial roofs, originally handsplit or machine-sawn, with replacement matched to the original rather than an aged appearance per NPS Preservation Brief 19; copper suits Federal, Greek Revival, and farmhouse roofs as standing-seam or flat-seam sheet metal, one of the historic metals — tin plate, terne plate, copper, lead, zinc — named in Brief 4, where the roof's shape and detailing stay unmodified.
When Does Synthetic Slate or Asphalt Substitute for a Historic Roof?
Synthetic slate and architectural asphalt substitute only on non-character-defining roofs — primarily flat or non-visible sections, or non-contributing structures — per NPS Preservation Brief 4, since asphalt is not a like-for-like swap for a visible historic roof.
Synthetic slate carries a 10–35-year life as simulated slate per the InterNACHI chart, with composite lines designed to 40–50 years per CertainTeed, and supplies the slate profile at lighter weight where a Historic Preservation Commission accepts it — though some Commissions require natural stone, per the NPS Standards.
Architectural asphalt installs at $6.50–$11.00 per NJ square foot per Josten Roofing and lasts 25–35 years per GAF, a lower-cost path appropriate on non-contributing or non-visible roofs where Brief 4 permits a substitute material that still matches the historic roof's scale, texture, and coloration as closely as possible.
What Triggers Historic Review on an NJ Reroof?
A Certificate of Appropriateness, not National Register or NJ Register listing, is the binding gate on a private NJ reroof — required for a designated landmark or a property in a LOCAL historic district, per N.J.S.A. 40:55D-107.
A Certificate of Appropriateness does not replace a building permit — a reroof in a local district commonly needs both, and the NJ Uniform Construction Code treats a full re-roof of a detached 1- or 2-family dwelling as ordinary maintenance with no construction permit per N.J.A.C. 5:23-2.7.
National Register or NJ Register listing alone places no restriction on a private owner using private funds — per the National Park Service, listing "places no federal restrictions or requirements on a private property owner," and the NJ DEP Historic Preservation Office states listing "does not place restrictions on private property owner rights"; the binding control is the local ordinance and its Certificate of Appropriateness.
Which Roof Suits a Designated Essex County Historic House?
Natural slate and cedar shingle suit a designated Essex County historic house, matched in kind under Standard 6 — slate on a pre-1920 Montclair or Newark home, cedar on a Craftsman — per the NPS Preservation Briefs.
Natural slate in a designated LOCAL district faces Certificate-of-Appropriateness review against adopted design guidelines and the Secretary of the Interior's Standards — Glen Ridge regulates a district covering over 90% of the Borough under Borough Code Ch. 15.32, Montclair under Code §347-136, and Newark's Landmarks and Historic Preservation Commission auto-designated Register-listed districts as of May 30, 2007.
Cedar shingle on a Craftsman home is fastened with hot-dipped zinc-coated, aluminum, or stainless-steel nails rather than copper, because a chemical reaction between red cedar and copper shortens the roof's life per NPS Preservation Brief 19, and fire-retardant-treated cedar meets local Class B or C code where required.
Which Roof Fits a Historic Commercial Building?
Clay tile and copper fit a historic commercial building — clay tile lasts 100+ years per the InterNACHI chart, copper exceeds 100 years properly installed per the Copper Development Association — both matched in kind under Standard 6.
Clay tile on an income-producing certified historic structure pairs with the federal 20% Historic Rehabilitation Tax Credit (IRC §47), which applies only to depreciable income-producing buildings — per the NPS and NJ HPO, owner-occupied residences do not qualify — claimed ratably over 5 years, with eligibility set by a tax professional, the NPS, and NJEDA.
Copper on an income-producing historic building also reaches the NJ Historic Property Reinvestment Program, an NJEDA credit limited to income-producing properties — a residential project runs as rental with at least four dwelling units — keyed to a qualifying historic designation and the Secretary of the Interior's Standards, per NJEDA.
Our Verdict
Natural slate and clay tile lead for NJ historic homes on in-kind authenticity and 100+-year durability; cedar shingle and copper match specific period styles, with synthetic slate the budget alternate.
Natural slate leads because it is the in-kind original roof on Victorian, Colonial Revival, and Gilded Age homes and lasts 60–150 years (premium 100+ per the National Slate Association), satisfying Standard 6's directive to replace a distinctive roof in kind, per the NPS; clay tile matches it at 100+ years on Spanish and Mission styles, per the InterNACHI chart.
Synthetic slate is the alternate when natural slate is cost-prohibitive — simulated slate lasts 10–35 years per InterNACHI, composite lines 40–50 years per CertainTeed — though some Historic Preservation Commissions require natural stone; cedar shingle remains the in-kind choice for Craftsman-era homes, per the Cedar Shake & Shingle Bureau and NPS Brief 19.
Not sure which is right for you? Call for a free consultation.