Document k6k9yOzqD10w7Zq5yapyVBMQ0

Tar and Asphalt Roof Resaturants__ for maintaining a graveled roof KOPPERS Architectural and Construction Materials a Loose grave' 3 removed to expose fcHa. 8. Surface dust : aiit a fa removed .vfth air pressure C. Resaturant is aoo'ied ever:*/ over ceanad root dock 0 washed grave! is sopited to cover fresh resafj.'ant. E. Resaturant and gravel are easily applied around root vents and air condcticmng units. surface and a binder for the replace ment of gravel or slag. The application of Koppers Roof Resaturant 425 re stores the pliability that is required to absorb the thermal demands made of a built-up roof and increases the weather and water resistance of the old asphalt roof. Cleaning 1. All loose gravel must be removes from roof. If existing gravel is to he re used, it must be washed free r; silt. 2. Silt is removed with a fire hose, or by air pressure. If water is used, the root must be allowed to dry completely be fore proceeding. 3. Drains are covered with screens to prevent clogging of the drain system. Application 4. After the roof is properly cleaned, all necessary repairs are made with compatible materials. 5. Koppers Roof Resaturant is applied evenly on to roof at the rate of seven gallons per square. The application rate may vary with the condition of the roof. 6. Grave! or slag is applied to cover the Koppers Roof Resaturant. Gravel shall be in the %-Vj range, and must be washed. Care must be taken to avoid adding excessive weight to the roof deck. Photography taken at Gulf Research & Development Company. Pittsburgh. Pa KOPPERS Roof Resaturants Roofing bitumens begin to deteriorate from the time they are applied to the roof. During the degradation of the built-up roof, the ingredients that pro vide pliability in the bitumen are grad ually diminished. Such a natural course of deterioration could mean the oremature expense of replacing the roof ing system. Hoppers Roof Resaturant used at the proper time will restore pliability and extend the iife of a grav eled roof. Hoppers Roof Resaturant when used in a planned program ol root mainte nance insures the retention of a flexible roofing system. Penetration begins the moment Hoppers Roof Resaturant is applied, and continues until the entire roof is satisfied. TAR Koppers Roof Resaturant 410 has a tar base of coal tar roofing pitch, blendea with non-volatile penetrating oils and properly graded asbestos fi bers. Koppers Roof Resaturant 410 supplies the maximum amount of pene tration obtainable from a product ol this type. Once penetration is gained, it is retained tor a longer period of time because there are no volatiles added to Roof Resaturant 410 which can cause rapid evaporation. Tests prove that Roof Resaturant 410 restores the age hardened roofing pitch to its orig inal installed condition and provides an adhesive to retain the gravel or slag. Koppers Fiber Coating 415 is a tar based roof resaturant designed to pro vide desired penetration to a tai and gravel roof. Fiber Coating 415 contains less than 5% added volatiles and prop erly graded asbestos fibers. It is manu factured to meet Federal Specification SS-C-540a. ASPHALT Koppers Roof Resaturant 425 has a base of selected asphalt blended with various grades of penetrating oils. A pre-determined size of asbestos fiber is added to provide product stability. This combination penetrates the exist ing roofing felts and plasticizes the age hardened asphalt to its original condition. In addition, a deep coating on the surface provides a weathering Sales Offices `Bessemer. Alabama 35020 (Birmingham) 205-744-9110 Charlotte. North Carolina 28203 1409 East Boulevard P.O. Box 3186 704-375-4427 `Elmhurst, Illinois 60126 (Chicago) 188 Industrial Drive 312- 833-3380 Southfield, Michigan 48075 (Detroit) 24800 Northwestern Highway 313-352-3920 Houston, Texas 77015 Old Industrial Rd. P.O. Box 9746 713-453-5446 Kansas City. Missouri 64111 Room 5 V.F.W. Building 816-531-6680 `Commerce. California 90040 5900 S. Eastern Avenue Suite 104 213-726-8666 `Pittsburgh. Pennsylvania 15219 1028 Koppers Building 412-391-3300 Portland. Oregon 97229 7540 N. W. St. Helens Road 503-286-3681 Burlingame. California 94010 (San Francisco) 1801 Murchison Drive 415-692-3330 St. Louis. Missouri 63101 706 Chestnut St. 314-241-8096 St. Paul, Minnesota 55104 1000 N. Hamline Avenue 612-646-7801 Tulsa. Oklahoma 74103 310 Thompson Building 918-583-2233 `West Orange. N. J. 07052 Paragon Building 10 Rooney Circle 201-736-9150 `District Offices Koppers Company, Inc. Pittsburgh, Pa. 15219 KOPPERS Architectural and Construction Materials