Architectural asphalt shingles rank first for most Essex County Colonials at $6.50–$11.00 per NJ square foot; natural slate ranks first on a historic Colonial as the in-kind material Standard 6 of the Secretary's Standards directs, per Josten Roofing and NPS.
The deciding factor is whether the home is a cost-driven Colonial Revival house or a character-defining historic Colonial, which sets the material, the substyle match, and the NJ code path before any covering is ordered.
Which Colonial Material Costs Less Per Year of Service?
Architectural asphalt shingles cost the least upfront and natural slate the least per year: asphalt installs at $6.50–$11.00 per NJ square foot over 30 years, slate at $10–$30 over 60–150 years, per Josten Roofing and the InterNACHI chart.
Architectural asphalt shingles carry the lowest entry cost in the field, installing at $6.50–$11.00 per NJ square foot within the $10,000–$25,000 NJ full-replacement benchmark, per Josten Roofing and the HomeAdvisor and Modernize NJ ranges. That benchmark covers a complete Colonial roof replacement, and asphalt sits at the bottom of it as the lowest-cost field option.
Natural slate carries a higher entry cost at $10–$30 per NJ square foot, yet its 60–150-year life (premium 100+) outlasts 2–5 asphalt cycles, so divided across that sourced lifespan it works out to a lower illustrative cost per year than asphalt, per the National Slate Association and the InterNACHI chart. Standing seam metal sits between the two at $9.00–$16.00 per NJ square foot over a 40–80-year life, and cedar shingle lasts 30–50 years, per the InterNACHI chart and the Cedar Shake & Shingle Bureau.
Which Material Matches Each Colonial Substyle?
Natural slate and cedar shingle match the earliest Colonial substyles, standing seam metal matches Federal and Georgian traditions, and architectural asphalt shingles match the Colonial Revival wave, each pairing following the period material named in NPS Preservation Brief 4.
Natural slate and cedar shingle roof Georgian and early Colonial homes that historically wore slate or wood shingle, the character-defining materials Brief 4 directs a visible historic roof to match in kind rather than swap for asphalt, per the National Park Service. Standing seam metal suits Federal and Georgian facades, where Brief 4 names metal traditional Colonial roof materials as tin plate, terne plate, copper, and zinc, with standing seam, batten seam, and flat seam as the standard sheet-metal systems, per NPS Preservation Brief 4 and the Copper Development Association.
Architectural asphalt shingles carry the Colonial Revival roofline common across Essex County's suburbs in muted charcoal, weathered-wood, or slate-gray tones at $6.50–$11.00 per NJ square foot, per Josten Roofing and NPS Preservation Brief 4. Charcoal and slate-gray suit a white Essex County Colonial, with weathered-wood a softer alternative in the same restrained palette, per Josten Roofing.
What Does NJ Code Require Before Re-Roofing an Essex County Colonial?
The local historic-district ordinance and the Rehabilitation Subcode govern an Essex County Colonial re-roof, while the NJ Uniform Construction Code exempts an ordinary-maintenance reroof on a detached one- or two-family dwelling, per N.J.S.A. 40:55D-107, N.J.A.C. 5:23-6.4, and N.J.A.C. 5:23-2.7.
The local historic-district ordinance is the binding gate for a designated-landmark or historic-district Colonial, where a Certificate of Appropriateness from the municipal Historic Preservation Commission reviews the roofing material before work begins, per N.J.S.A. 40:55D-107. National Register listing alone places no restriction on a private reroof, per the National Park Service.
The Rehabilitation Subcode requires complete removal of an existing wood-shake, slate, or clay-tile covering rather than a recover-over once a permit is triggered, and bars a third roofing layer, per N.J.A.C. 5:23-6.4. The ordinary-maintenance exemption covers only detached one- and two-family dwellings, so a Colonial-style commercial roof triggers a NJ UCC permit once roof work exceeds 25% of roof area within a 12-month period, per N.J.A.C. 5:23-2.7(c).
Architectural asphalt shingles rank first for most Essex County Colonial Revival homes on cost, while natural slate ranks first for a character-defining or historic-district Colonial as the in-kind material under Standard 6. The deciding factor is the home's era and historic status, which sets both the substyle match and the NJ code path before material selection.