FREE INSPECTIONS AND      ESTIMATES COMPETITIVE PRICING FULLY INSURED AND LICENSED RIGGERS TRAINED AND CERTIFIED ROOFING APPLICATORS ESTABLISHED FAMILY-OWNED AND OPERATED BUSINESS RELIABLE, PROMPT, QUALITY SERVICE!     Read More About our Services Steel Metal and Waterproofing.   Providing continuous service to the NY Metro area,   for over 54 years!   54 YEAR, FAMILY OWNED, THIRD GENERATION       Introduction   Some Technical Information   Hints & Tips   Insulation R-Values   The Galvanic Scale   B.U.R. Substrates   How Long do They Last?   THE GALVANIC SCALE This section will help to provide a little bit of technical information. The following table shows application temperatures for asphalt and coal tar bitumens. These are not kettle temperatures, they are temperatures that the bitumen should be at the roof level. These temperatures were obtained from various bitumen manufacturers. ASPHALT – ASTM D 312 Asphalt Type Mop Application (° F) Mechanical Spreader Application (° F) Type I Dead Level 350 ± 25 375 ± 25 Type II Flat 400 ± 25 425 ± 25 Type III Steep 425 ± 25 450 ± 25 Type IV Special Steep 450 ± 25 475 ± 25 Type I asphalt can be used on roofs with slopes up to ¼ in 12. Type II asphalt can be used on roofs with slopes up to 1 in 12. Type III asphalt can be used on roofs with slopes up to 3 in 12. Type IV asphalt can be used on roofs with slopes up to 6 in 12.   For a quick look at how to figure the "slope," click here.   COAL TAR – ASTM D 450 Coal Tar Type Mop Application (° F) Mechanical Spreader Application (° F) Type I Pitch 360 ± 25 380 ± 25 Type III Bitumen 375 ± 25 400 ± 25 Type I coal tar pitch can be used on roofs with slopes up to 1/8 in 12. Type III coal tar bitumen can be used on roofs with slopes up to ¼ in 12.   What follows are ASTM specifications for certain Built-Up Roofing materials. For information on how to obtain a written copy of these specifications or other specification and test procedures, visit the ASTM web site at www.astm.org   BITUMENS AND LAP CEMENT Asphalt – Types I, II, III, and IV ASTM D 312 Coal Tar – Types I, II, and III * ASTM D 450 Lap Cement – A.K.A. Cold-Applied Liquid Adhesive, A.K.A. Solvent Based (Cutback ) Asphalt – Type I (Grades 1 and 2), and Types II and III ASTM D 3019 * Coal Tar types I and III are used in roofing and generally are referred to as Coal Tar Pitch and Coal Tar Bitumen, respectively. Type II is generally used in dampproofing and waterproofing and is not used with built-up roof systems. FELTS AND FABRICS Asphalt-Coated Organic Base Sheet – Perforated and Non-Perforated ASTM D 2626 Asphalt-Coated Glass Fiber Base Sheet ASTM D 4601 Asphalt-Coated Glass Fiber Venting Base Sheet, Types I and II ASTM D 4897 Asphalt-Saturated Organic Felt – Types I (A.K.A. No. 15) and II (A.K.A. No. 30) ASTM D 226 Coal Tar-Saturated Organic Felt ASTM D 227 Smooth-Surfaced Asphalt Roll Roofing – Types I, II, III, and IV ASTM D 224 Asphalt- or Coal Tar-Saturated Cotton Fabrics ASTM D 173 Asphalt- or Coal Tar-Saturated Woven Burlap Fabrics ASTM D 1327 Asphalt-Impregnated Glass Felt – Types III, IV, and VI ASTM D 2178 Coal Tar-Impregnated Glass Felt – Type I ASTM D 4990 Thermoplastic Fabrics for Cold-Applied Built-Up Roofing – Types I, II, III, IV, V, and VI ASTM D 5665 Thermoplastic Fabrics for Hot-Applied Built-Up Roofing – Types I, II, III, and IV ASTM D 5726 Asphalt Primer ASTM D 41 SURFACINGS (AGGREGATE, COATINGS, AND CAP SHEETS) Coal Tar Primer ASTM D 43 Mineral Aggregate – Gravel or Slag ASTM D 1863 Asphalt Roof Coatings – Asbestos Free ASTM D 4479 Asphalt Roof Coatings ASTM D 2823 Aluminum-Pigmented Asphalt Roof Coatings – Non-Fibered, Asbestos Fibered, and Fibered without Asbestos ASTM D 2824 Emulsified Asphalt – Fibered and Non-Fibered ASTM D 1227 Mineral-Surfaced Asphalt Roll Roofing (Glass Fiber) ASTM D 3909 Mineral-Surfaced Asphalt Roll Roofing (Organic) ASTM D 249 Mineral-Surfaced Asphalt Roll Roofing (Organic) – Wide Selvage ASTM D 371 Mineral-Surfaced Asphalt Roll Roofing (Glass Felt) ASTM D 2178 ROOF CEMENTS Asphalt Roof Cement – Asbestos Free ASTM D 4586 Asphalt Roof Cement ASTM D 2822 Coal Tar Roof Cement – Asbestos Free ASTM D 5643 Coal Tar Roof Cement ASTM D 4022 PRIMERS Asphalt Primer ASTM D 41 Coal Tar Primer ASTM D 43     Copyrights @ Fort Cica - 2008 | All Rights Reserved   Call Us: 718-585-9188