BUR - Technical Information

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 � 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 � 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

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