Roofing

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Roofing Contents:

CSI NUMBERS
DEFINITION
CONSIDERATIONS
COMMERCIAL STATUS
IMPLEMENTATION ISSUES
GUIDELINES

1) Fiber-Cement Composite Slates and Shakes
2) Organic Asphalt Shingles
3) Metal Roofing Products

RESOURCES

PROFESSIONAL ASSISTANCE
COMPONENTS / MATERIALS / SYSTEMS
GENERAL ASSISTANCE

07300 Shingles & Roofing Tile
07410 Preformed Roof Panels
07500 Membrane Roofing
07610 Sheet Metal Roofing
07620 Flashing & Trim
07316 Metal Shingles
07320 Roofing Tiles
07321 Clay Roofing Tiles
07322 Concrete Roofing Tiles

This section deals with roof covering materials such as shingles, tile, and roof panels.

CONSIDERATIONS:

Slate, clay, and cementitious roof materials offer excellent durability but are heavy. Fiber-cement composite roof materials are somewhat lighter and use fiber materials resourcefully. Some use waste paper as well as wood fiber. Many have 60 year warranties.

Metal roof materials, steel and aluminum contain high percentages of recycled content, up to 100% in many aluminum products. An additional advantage is that these materials are easily recycled in their post-use as well as lightweight and durable.

Asphalt shingles use recycled, mixed paper in their base and some use reclaimed minerals in the surface aggregate. This type of material does not last as long as the others mentioned above. Recycled plastic roof materials are starting to be introduced as a lightweight option.

	Commercial Status				Implementation Issues
Clay/Cemetitious
30-50 Year Material
Recycled Content

Legend
	Satisfactory
	Satisfactory in most conditions
	Satisfactory in Limited Conditions
	Unsatisfactory or Difficult

TECHNOLOGY:

SUPPLIERS:

Clay roof materials are costly; metal roof materials are competitive with the more common asphalt shingles.

FINANCING:

PUBLIC ACCEPTANCE:

REGULATORY:

• 1.0 Fiber-cement composite slates and shakes

  • Weigh between 325 and 500 pounds per square.

  • Use standard roof structures.

  • Long-lasting (up to 60-year warrantees, fireproof).

  • Typically have Class A fire rating.

• 2.0 Organic asphalt shingles

  • Up to 25% recycled content by some companies.

  • Life of 20-30 years.

  • Not easily recycled at end of useful life.

  • Weigh approximately 230 pounds per square.

• 3.0 Metal roofing products

  • Can be made to give shingle appearance

  • Most metal roofing, including standing-seam, contains recycled metal.

  • Metal roofing used primarily for agricultural buildings is lower in cost, but requires premium metal coatings, factory-finished panels, or watertight construction detailing when used for housing.

  • 3.1 Metal coatings
    • Zinc (galvanized) coatings oxidize to protect the steel. Protection is lost when the oxidation process uses up the zinc, and the steel underneath can rust. On low-sloped roofs in wet climates, coating loss and rust can show up in five years.

    • Aluminum coatings are superior to zinc, carrying warranties up to twenty years. They are inert, and do not degrade over time.

    • Aluminum-zinc alloys, or Galvalume, will outperform aluminized coatings and exceed twenty-year warrantees.

  • 3.2 Paint
    • Only use factory applied paint.

    • Polyester resin finishes offer least durability. Fading will occur in 5 to 7 years.

    • Silicone modified polyester finishes are superior (the more silicone, the better the performance). Twenty year warranties are available.

    • Fluorpolymer resins provide a state of the art finish. Five paint companies produce this paint under the brand names of Duranar, Nubelar, Fluropon, Trinar, and Visulure.

    • Bare aluminized or Galvalume panel can last 40 years without maintenance and is a better choice than polyester resin finishes.

  • 3.3 Panel thermal movement
    • Metal panels respond to temperature change by expanding and contracting. This causes the fastener hole size to increase, resulting in leaks.

    • Dark colors will experience the largest thermal movement.

    • Panels installed over purlins will not harm the roof system with thermal movement.

    • If installing over a solid deck, use Z-shaped metal sleepers over the decking. The sleepers will move with the panels and eliminate fatigue where the screws penetrate the panels (the screw hole will become elongated causing leaks) or the screws will lose grip on the decking. If possible, do not use solid decking with metal roof panels.

    • Solid aluminum panels have a higher coefficient of expansion than steel and will strain fasteners with the increased movement from temperature change.

  • 3.4 Galvanic reactions
    • Protect metal panels on the anodic end of the galvanic scale from fasteners and flashings on the cathodic end to prevent corrosion.

  

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  RESOURCES

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  PROFESSIONAL ASSISTANCE

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  See "Building Construction Consultants" and ""Roofing Services Consultants" in Yellow Pages.

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  COMPONENTS / MATERIALS / SYSTEMS

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  See "Roofing Contractors", "Roofing Equipment and Supplies", and "Roofing Materials" in Yellow Pages.
  American Cem-Wood Products
  P. O. Box C
  Albany, OR 97321
  (800) 367-3471
  www.cemwood.com
  "Cascade and Royal Shakes(TM)" and "Pacific Slate(TM)" fiber -cement roofing tiles, 30 year warranty, 480-620 pounds per square, Class A fire rating.

  CertainTeed Corporation
  3303 E. 4th Ave.
  Shakopie, MN 55379
  (800) 328-5874, (800) 274-8530
  Organic felt based shingles with recycled-content, Class C fire rating.

  Classic Products
  299 Staunton St., P. O. Box 701
  Piqua, OH 45356
  (513) 773-9840
  Rustic Shingle recycled aluminum shingles, 40 year limited warranty, 45 pounds per square, Class A, B, or C ratings according to underlayment, enamel acrylic paint finish approved for drinking water catchment.

  Eternit
  Excelsior Industrial Park, P. O. Box 679
  Blandon, PA 19510-0679
  (215) 926-0100
  Fiber-cement slates, average 430 pounds per square, Class A rating, 30 year non-prorated warranty.

  Gerard Roofing Technologies, Inc.
  955 Columbia Street
  P. O. Box 9459
  Brea, CA 92622-9459
  PH: (800)-23-ROOFS (714)-529-0407
  FX: (714)-276-1476
  http://www.gerardusa.com
  info@gerardusa.com
  Steel (G-90 Galvanized or AZ-50 Gavalume) Tile & Shake roof panels coated with graded stone granules & accessories, 140 pounds per square, Class A rating, 50 year warranty.

  James Hardie Building Products
  26300 La Alameda Suite 400
  Mission Viejo, CA 92691
  (800) 426-4051
  www.jameshardie.com
  Hardishake(R) & Hardishingle(R) fiber cement tiles, 380 lbs per square, Class A rating, 50 year warranty.

  Masonite Corporation
  1 South Wacker Drive
  Chicago, IL 60606
  (800) 255-0785
  Woodruf(R) shingles from reconstituted wood fibers, 230 pounds per square, 25 year limited warranty, simulate natural cedar appearance.

  Maxitile, Inc.
  17141 S.Kingview Ave.
  Carson, CA 90746
  (800) 845-6293
  Fiber-cement tile, 340 pounds per square, Class A rating, 50 year warranty, simulate mission tile appearance.

  Metal Sales Manufacturing Corp.
  3838 North General Bruce Drive
  Temple, TX 76501
  (800) 543-4415
  Stile(TM) metal tile, 100 pounds per square, Class A rating, 20 year limited warranty, Simulate clay tile appearance.

  Nailite International
  1251 Northwest 165th St.
  Miami, FL 33169
  (800) 624-5483
  Recycled-content plastic panels, 80 pounds per square, Class C rating.

  D'Hanis Brick and Tile Co.
  311 E. Nacoma
  San Antonio, TX 78216-2714
  (800) 299-9399
  Clay tile

  Elgin-Butler Brick
  1009 E. 40th St.
  Austin, TX 78751
  (512) 453-7366
  Clay tile

  Vail Metal Systems
  P.O.Box 6521
  Vail, CO 81658
  (888) VAILMETL,
  www.vailmetal.com/roofing/
  copper and Kynar 500 galvalume panels

  GAF
  1361 Alps Rd
  Wayne, NJ 07040
  (800) 223-1948
  Fiber-cement shingles, slates, shakes, 240-500 pounds per square, Class A and B ratings, 40 year non-prorated warranty

  MetalWorks
  1005 Beaver Grade Road
  Moon Township, PA 15108-2944
  (800) 320-0101
  Aston Wood Steel shingles, 63 pounds per square, 5 Kynar 500 colors available, Simulate wood shake appearance
  Local Distributor:
  Pan Am Distributing, (512) 836-1531
  
  ATAS International
  6612 Snowdrift Road
  Allentown, PA 18106
  (800) 468-1441 or
  4559 Federal Blvd.
  San Diego, CA 92113
  (800) 879-8382
  www.atas.com
  Steel and Aluminum shingles, 35-60 lbs. per sq. for aluminum, 80-140 lbs per sq. for steel, Class A rating, 25 yr. warranty ,the look of shake, slate, or tile, (4) Kynar 500 colors
  Local Dealer:
  Pan Am Distributing, (512) 836-1531

  Perfect Choice Building Products
  1618 Lynch Rd.
  Evansville, IN 47711
  (800) 776-8060
  interlocking thermoplastic shingles with cedar shake appearance, Class A flame protection, 62 lbs per square

  Re-New Wood, Inc.
  P.O.Box 1093
  Wagoner, OK 74467
  (800) 420-7576
  Eco-Shake(TM) 100% recycled plastic/wood shingle, 250 lbs/sq, 50 yr warranty, 4 colors , Class A fire rating
  Local Distributor:
  Polston Sales & Marketing
  (972) 258-6255
  Cal-Shake Corporation
  5355 N. Vincent Ave.
  Irwindale, CA 91706
  (818) 969-7544
  fiber-cement shake-like and slate-like roofing tiles, 25 year warranty
  
  Vincent Metal Goods
  P.O.Box 360
  Minneapolis, MN 55440
  (800) 328-7800
  "ColorKlad" and "AlumaKlad" standing seam metal roofing panels
  
  Protective Coatings of Austin
  2210 S. 1st St., Suite G1
  Austin, TX 78704
  (512) 462-1094
  reflective,insulating, ceramic roof coating
  
  

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  GENERAL ASSISTANCE

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  Metal Roofs
  RR2, Box 146
  Richmond, VT 05477
  Send stamped self addressed envelope for
  detailed information on metal panels
  installation.

  National Tile Roofing Manufacturing Assn.
  3127 Los Feliz Blvd.
  Los Angeles, CA 90039
  (213) 660 4411

  Underwriters Laboratory
  333 Pfingsten Road
  Northbrook, IL 60062
  Standards for fire ratings

  American Society for Testing and Materials
  1916 Race St.
  Philadelphia, PA 19103
  (610) 832-9500
  Standards for aluminum, slate, asphalt, steel

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