Mon to Fri 7 to 5, Sat 8 to 12

Slate, copper and historic restoration since 1962

The materials library

Six roofing systems, each with a texture swatch, lifespan, sample installed cost and wind rating. Visit the shop to handle real samples.

Side by side

Roofing materials compared on lifespan, installed cost per square and wind rating. Figures are sample ranges for Greater Boston.
MaterialTypical lifespanInstalled costWind ratingWeightBest for
Natural slate75 to 150 years$1,800 to $3,200 per squareUp to 110 mph with proper nailing and hooks800 to 1,500 lb per squareHistoric homes, mansards, steep roofs built to carry the weight
Standing seam metal40 to 100 years$1,150 to $2,600 per squareTested to 140 mph and above (double-lock)100 to 150 lb per squarePorches, bays, low-slope additions and snow country
Copper80 to 120 years$2,400 to $4,200 per squareUp to 130 mph with cleated seams100 to 130 lb per squareBay roofs, dormers, cupolas, gutters and flashing
Architectural shingles25 to 35 years$520 to $780 per square110 to 130 mph with enhanced nailing250 to 450 lb per squareColonials, capes and budget-conscious replacements
Clay and concrete tile50 to 100 years$1,000 to $2,100 per squareUp to 125 mph with foam or mechanical fastening600 to 1,100 lb per squareMediterranean and Tudor revival homes in Brookline and Newton
TPO and EPDM membranes20 to 30 years$780 to $1,450 per squareFM-rated assemblies to 90 psf uplift and higher30 to 60 lb per square plus insulationTriple-deckers, roof decks, condos and mixed-use buildings
  • Natural slate

    Typical lifespan
    75 to 150 years
    Installed cost
    $1,800 to $3,200 per square
    Wind rating
    Up to 110 mph with proper nailing and hooks
    Weight
    800 to 1,500 lb per square
    Best for
    Historic homes, mansards, steep roofs built to carry the weight
  • Standing seam metal

    Typical lifespan
    40 to 100 years
    Installed cost
    $1,150 to $2,600 per square
    Wind rating
    Tested to 140 mph and above (double-lock)
    Weight
    100 to 150 lb per square
    Best for
    Porches, bays, low-slope additions and snow country
  • Copper

    Typical lifespan
    80 to 120 years
    Installed cost
    $2,400 to $4,200 per square
    Wind rating
    Up to 130 mph with cleated seams
    Weight
    100 to 130 lb per square
    Best for
    Bay roofs, dormers, cupolas, gutters and flashing
  • Architectural shingles

    Typical lifespan
    25 to 35 years
    Installed cost
    $520 to $780 per square
    Wind rating
    110 to 130 mph with enhanced nailing
    Weight
    250 to 450 lb per square
    Best for
    Colonials, capes and budget-conscious replacements
  • Clay and concrete tile

    Typical lifespan
    50 to 100 years
    Installed cost
    $1,000 to $2,100 per square
    Wind rating
    Up to 125 mph with foam or mechanical fastening
    Weight
    600 to 1,100 lb per square
    Best for
    Mediterranean and Tudor revival homes in Brookline and Newton
  • TPO and EPDM membranes

    Typical lifespan
    20 to 30 years
    Installed cost
    $780 to $1,450 per square
    Wind rating
    FM-rated assemblies to 90 psf uplift and higher
    Weight
    30 to 60 lb per square plus insulation
    Best for
    Triple-deckers, roof decks, condos and mixed-use buildings

Swipe to compare all 6 materials

Roofing materials compared on lifespan, installed cost per square and wind rating. Figures are sample ranges for Greater Boston.

Material profiles

Natural slate roof

Natural slate

Quarried stone split by hand. The longest-lived pitched roof in New England.

Lifespan
75 to 150 years
Sample cost
$1,800 to $3,200 per square
Wind rating
Up to 110 mph with proper nailing and hooks
Historic use
The standard on Beacon Hill, Back Bay and Victorian Cambridge

Strengths

  • Lowest cost per year of life
  • Fireproof and rot proof
  • Salvageable and repairable slate by slate

Tradeoffs

  • Highest upfront cost
  • Needs framing sized for the weight
  • Requires specialist installers
Standing seam metal roof

Standing seam metal

Continuous panels in painted steel, zinc or copper with raised, locked seams.

Lifespan
40 to 100 years
Sample cost
$1,150 to $2,600 per square
Wind rating
Tested to 140 mph and above (double-lock)
Historic use
Traditional as painted terne on Boston porches and bays

Strengths

  • Sheds snow and ice
  • Very high wind resistance
  • Light weight

Tradeoffs

  • Snow slides need guards
  • Dents from large hail on thin gauges
  • Custom trim adds cost
Copper roof

Copper

Soldered flat-seam or standing seam copper that browns, then turns green.

Lifespan
80 to 120 years
Sample cost
$2,400 to $4,200 per square
Wind rating
Up to 130 mph with cleated seams
Historic use
Found on bays and cornices across the Back Bay and South End

Strengths

  • Beautiful patina
  • Soldered seams do not dry out
  • Recyclable at end of life

Tradeoffs

  • Premium material cost
  • Needs skilled soldering
  • Stains stone or brick below if detailed poorly
Architectural shingles roof

Architectural shingles

Laminated asphalt shingles with a dimensional look, the most common roof in Massachusetts.

Lifespan
25 to 35 years
Sample cost
$520 to $780 per square
Wind rating
110 to 130 mph with enhanced nailing
Historic use
Acceptable on many non-contributing buildings and rear slopes

Strengths

  • Lowest upfront cost
  • Fast installation
  • Wide color range

Tradeoffs

  • Shortest lifespan
  • Temperature limits for installation
  • Not approved on many historic facades
Clay and concrete tile roof

Clay and concrete tile

Barrel and flat interlocking tile, fired clay or cast concrete.

Lifespan
50 to 100 years
Sample cost
$1,000 to $2,100 per square
Wind rating
Up to 125 mph with foam or mechanical fastening
Historic use
Original on many 1910s to 1930s revival houses

Strengths

  • Very long life
  • Distinctive look
  • Fire resistant

Tradeoffs

  • Heavy
  • Tiles crack under foot traffic
  • Matching discontinued profiles can be hard
TPO and EPDM membranes roof

TPO and EPDM membranes

Single-ply membranes for flat and low-slope roofs, heat-welded or adhered.

Lifespan
20 to 30 years
Sample cost
$780 to $1,450 per square
Wind rating
FM-rated assemblies to 90 psf uplift and higher
Historic use
Hidden behind parapets on most rowhouses and brownstones

Strengths

  • Built for low slopes
  • White TPO reflects summer heat
  • Works under roof decks

Tradeoffs

  • Needs good drainage design
  • Punctures from foot traffic without pads
  • Shorter life than metal

Handle the samples in person

Book an inspection and we will bring slate, copper and shingle samples to your kitchen table.

Licensed and insured in Massachusetts. No-pressure estimates (sample).

Cookie preferences

Choose which cookies you allow. You can change this at any time from the link in the footer.