US 2005O2521.41A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2005/0252141 A1 Kerkar et al. (43) Pub. Date: Nov. 17, 2005

(54) ROOFING SHINGLES PROVIDED WITH (22) Filed: Mar. 30, 2004 RELEASE COATING Publication Classification (75) Inventors: Awdhoot Vasant Kerkar, Rockaway, NJ (US); Tommy Rodrigues, Union, (51) Int. Cl." ...... E04D 1/34 NJ (US); Frederick W. Sieling, Bound (52) U.S. Cl...... 52/551 Brook, NJ (US) Correspondence Address: (57) ABSTRACT GAF MATERIALS CORPORATION Attn: William J. Davis, Esq. Legal Department, Building No. 10 A roofing shingle and a method of manufacturing roofing 1361 Alps Raod shingle wherein the bottom Surface of Said shingle is pro Wayne, NJ 07470 (US) Vided with a release coating of a continuous film of particles having poor interlaminar Strength due to the particles having (73) Assignee: BUILDING MATERIALS INVEST. good to perfect basal . The release coating Signifi MENT CORPORATION cantly eases Separation of roofing shingles that Stick together when Stacked during Storage and transit in warm environ (21) Appl. No.: 10/812,541 mentS.

Patent Application Publication Nov. 17, 2005 US 2005/0252141 A1 Fig. 1

Fig. 2

US 2005/0252141 A1 Nov. 17, 2005

ROOFING SHINGLES PROVIDED WITH climates when temperatures approach the Softening point of RELEASE COATING the Shingle asphalt coating, resulting in asphalt flow. The Sticking is also a function of time where longer periods of BACKGROUND OF THE INVENTION compression time increase the Sticking. The combination of 0001) 1. Field of the Invention high temperature and long Storage times results in very damaging Sticking. Mechanical interlock of asphalt within 0002 The present invention is directed to roofing the granules under the effect of the pressure point also shingles provided with a release coating. More Specifically, contributes to the Sticking phenomenon. the present invention focuses upon laminated roofing shingles whose bottom Surface is coated with a continuous 0009. The problem discussed above has been recognized film of release material characterized by poor interlaminar in the art. Among the expedients attempted to overcome this Strength. problem has been the application of a plastic release tape, positioned in the pressure point region of each shingle. This 0003 2. Background of the Prior Art method has been Successful, albeit not 100% effective. Not 0004 Roofing shingles are often divided into two main only is this method not totally effective but, in addition, groups: Strip shingles and dimensional or laminated application of release tape adds significant material and shingles. The most common type of roofing shingles are labor expense. laminated. These laminated shingles, often referred to as 0010. The failure to find a complete solution to the “architectural shingles, include a top layer, which those problem of Sticking together of roofing shingles when skilled in the art speak of as the “anterior layer” and a bottom Stacked in Stacks of a plurality of roofing shingles and layer, referred to as the “posterior layer.” The back surface disposed on pallets during shipping and Storage of roofing of the anterior layer is bonded to the front surface of the shingles prior to installation on building roofs evidences the posterior layer. The posterior layer is bonded So that it mates need in the art for a new roofing shingle which overcomes with the lower butt portion of the anterior layer and further this problem. The solution to this problem is constrained by overlaps the anterior layer over a fraction of the undivided the need to retain the roofing shingle design that has proven headlap portion. effective in protecting roofs. 0005 Strip shingles are also prevalent. Strip shingles are Single layer asphalt shingles that are manufactured in Strips, BRIEF SUMMARY OF THE INVENTION typically three times as long as they are wide. 0.011) A new roofing shingle has now been developed 0006 A problem associated with both laminated and strip which overcomes the problem of Sticking together of roofing roofing shingles lies in Shipment and Storage of these shingles, when Stacked in a plurality of roofing shingles and shingles. Shingles are packaged in bundles of 20 to 25 disposed on pallets, during transit and Storage. This new shingles. Laminated shingles are bundled in either alternat shingle design does not adversely affect roofing Shingle ing anterior layer to anterior layer and posterior layer to performance in protecting roofs and represents a minimal posterior layer configuration or each shingle is Stacked one additional expense in terms of additional processing com atop another So that the anterior layer of a first shingle faces plexity and component cost. the posterior layer of the adjoining shingle, that is, front 0012. In accordance with the present invention a new Surface-to-front Surface, back Surface-to-back Surface or roofing shingle has been developed. The Shingles of this front Surface-to-back Surface. Furthermore, the bundles are invention include mono- and multiply types as in a roll on typically Stacked and palletized in independent columns or sheet used for built up roofing and also includes individual in an interwoven “E” pattern. shingles of the tabbed variety which in turn includes mono 0007 Independent of the bundling method, the high layered and composite types having a headlap portion and a preSSure caused by Stacking of these heavy roofing shingles, tabbed portion with or without a backer strip underlying the causes the shingles to Stick together. Additionally, there is a tabs. The Shingle includes a Surface coated with a release transition region found in many laminated Shingles due to coating. the posterior layer having a Smaller width than the anterior 0013 In accordance with the present invention a new layer added thickness caused by the overlapping Shingle method of manufacturing a roofing shingle is disclosed. The layers in laminated shingles creates a hump. This transition method provides for applying a release coating to the Shingle region is most often characterized by a stepped profile. The during manufacture. Stepped transition region located at the Sharp transition in thickness between the top portion of the anterior layer, BRIEF DESCRIPTION OF THE DRAWINGS which is unbonded, and the portion of that layer bonded to the posterior layer, results in a pressure point within the 0014. The present invention may be better understood by Stack. The pallet arrangements magnify the pressure reference to the accompanying drawings of which: observed in a Single Stack. AS Such, preSSure at the preSSure 0.015 FIG. 1 is a view of the top surface of a laminated point of each shingle is magnified. This pressure point roofing shingle in accordance with the present invention; results in distortion and localized Sticking of the shingles. 0016 FIG. 2 is a view of the bottom surface of the The degree of Sticking together of adjoining shingles is roofing shingle of FIG. 1 in accordance with the present proportional to load, which imparts pressures. Thus, invention. shingles at the bottom of a Stack are more prone to Sticking than those at the top where the pressure is lower. DETAILED DESCRIPTION 0008. The sticking together of roofing shingles is 0017. The following detailed description of the invention observed predominantly during warmer months and in hotter is to a 2-ply laminated shingle for convenience but the US 2005/0252141 A1 Nov. 17, 2005 invention is not limited to Such a shingle. The roofing 0026 Bannisterite (Hydrated Potassium Calcium shingle 1 in accordance with the present invention is Manganese Iron Zinc Aluminum Silicate Hydrox depicted as it appears viewed from its top surface in FIG. 1 ide); and from its bottom surface in FIG. 2. The roofing shingle is preferably a laminate of an anterior layer 2 having a front 0027 Carletonite (Hydrated Potassium Sodium Cal Surface and a back Surface and posterior layer 5 having a cium Silicate Carbonate Hydroxide Fluoride); front Surface and a back Surface. The anterior layer includes 0028 Cavansite (Hydrated Calcium Vanadate Sili an undivided headlap portion 3 and a lower butt portion 4. cate); The posterior layer 5, often referred to in the art as a “backer Strip, is usually rectangularly shaped. The front Surface of 0029 Chrysocolla (Hydrated Copper Aluminum the posterior layer 5 is bonded to the back surface of the Hydrogen Silicate Hydroxide); anterior layer 2 So that it completely mates with the lower 0030 Baileychlore (Zinc Iron Aluminum Magne butt portion 4 and provides an overlap of the two layers over sium Silicate Hydroxide); a fraction of the undivided headlap portion 3. However, the 0031 Chamosite (Iron Magnesium Aluminum Sili shingle may be mono-layered or have three or more layers. cate Hydroxide Oxide); Chlorite; 0.018. Both the anterior layer 2 and the posterior layer 5 preferably comprise a fiberglass mat, an organic or inorganic 0032) Clinochlore (Iron Magnesium Aluminum Sili felt or fabric Stock impregnated with asphalt and coated with cate Hydroxide); weather resistant mineral granules. 0033 Cookeite (Lithium Aluminum Silicate 0019. To provide a roofing shingle 1 which does not stick Hydroxide); to its neighboring shingles in a Stack, especially when the 0034 Nimite (Nickel Magnesium Iron Aluminum Stack is disposed on a pallet, a coating of a release material Silicate Hydroxide); 100 is placed on the bottom surface of the shingle 1, as depicted in FIG. 2, and the shingles 1 are bundled so that the 0035 Pennantite (Manganese Aluminum Silicate top Surface of each Shingle is adjacent the bottom Surface of Hydroxide); its neighboring shingle. The release coating comprises a continuous film of Solid particles having poor interlaminar 0036 Penninite (Iron Magnesium Aluminum Sili Strength when applied as a slurry coating. cate Hydroxide); 0037 Sudoite (Magnesium Aluminum Iron Silicate 0020 Particles that result in a film with poor interlaminar Hydroxide); Strength have good to excellent basal cleavage. The coating of the present invention comprises particles from the class 0038 (Potassium Sodium Iron Alumi preferably comprised of phylloSilicates, which have rings of num Magnesium Silicate Hydroxide); tetrahedrons linked by shared to other rings in a two dimensional plane that produce a sheet-like Structure. Layers 0.039 (Hydrated Potassium Aluminum Magne of weakly bonded cations, often having water molecules and sium Iron Silicate Hydroxide); other neutral atoms or molecules trapped between them, 0040 (Aluminum Silicate Hydroxide); typically connect the Sheet Structures. 0041 (Hydrated Sodium Calcium 0021. The particles used by the present invention are Aluminum Magnesium Silicate Hydroxide); characterized as being Substantially flat, platy, and display ing good to perfect basal cleavage. Cleavage is the Splitting 0042 (Hydrated Magnesium Alumi or tendency of a crystal to Split along definite crystalline num Silicate Hydroxide); planes to produce Substantially planar Surfaces. The quality 0043. Pyrophyllite (Aluminum Silicate Hydroxide); of the cleavage plane is expressed with the terms perfect, good (well defined, but not completely even) and poor 0044 Sauconite (Hydrated Sodium Zinc Aluminum (difficult to recognize). Cleavage resulting in one non Silicate Hydroxide); parallel cleavage plane is called basal cleavage. Basal cleav 0045 (Magnesium Silicate Hydroxide); age is a type of cleavage across a horizontal plane of a mineral by its base or top and bottom closing points. 0046) Vermiculite (Hydrated Magnesium Iron Alu Minerals with good to perfect basal cleavage can be peeled minum Silicate Hydroxide); which is the desired function on the particles for the present 0047) Delhayelite (Hydrated Sodium Potassium invention. Calcium Aluminum Silicate Chloride Fluoride Sul 0022 Particles meeting this criterion include the minerals fate); of the family, which are all characterized by Sheets of Silicate. Other preferred particles include graphite, magne 0.048 Elpidite (Hydrated Sodium Zirconium Sili sium Silicate, magnesium Sulfite, clays, and crystals inter cate); grown with mica and clay layerS forming a composite 0049) Fedorite (Hydrated Potassium Sodium Cal crystal. cium Silicate Hydroxide Fluoride); 0023 Specificp examplesp include but are not limited to: 0050 Franklinfurnaceite (Calcium Iron Aluminum 0024 Allophane (Hydrated Aluminum Silicate); Manganese Zinc Silicate Hydroxide); 0025 Apophyllite (Hydrated Potassium Sodium 0051 Franklinphilite (Hydrated Potassium Manga Calcium Silicate Hydroxide Fluoride); nese Aluminum Silicate.) US 2005/0252141 A1 Nov. 17, 2005

0.052 Gonyerite (Manganese Magnesium Iron Sili of the shingles. The invention is therefore embodied in terms cate Hydroxide); of Single ply, multi-ply laminated Shingles and roll roofing. Optimum results, in terms of application and material costs, 0.053 Gyolite (Hydrated Calcium Silicate Hydrox is obtained when the coating is applied to the “preSSure ide); point' portion of the laminate shingle 1. The pressure point, 0054 Leucosphenite (Hydrated Barium Sodium generally defined above, is at, and immediately above and Titanium Boro-silicate); below the top edge of the posterior layer where that top edge overlaps the bottom portion of headlap portion of the 0055) The Mica Group: anterior layer. This preSSure point is generally denoted by 0056 (Potassium Iron Magnesium Alumi reference numeral 6 in FIG. 2. For roll roofing it is preferred num Silicate Hydroxide Fluoride); to coat the entire back Side. The coating Should be applied to the Surface of a shingle that is in contact with the Shingle 0057 (Potassium Lithium Aluminum above or below it when stacked. That is, shingles may be Silicate Hydroxide Fluoride); Stacked front Surface-to-front Surface, back Surface-to-back 0.058 (Potassium Aluminum Silicate Surface or front Surface-to-back Surface, in each case the Hydroxide Fluoride); coating is applied to the Surfaces in contact with the next shingle when Stacked. Preferably, the coating is applied to 0059) Paragonite (Sodium Aluminum Silicate the exposed asphalt Surface in contact with either a granular Hydroxide); Surface or another exposed asphalt Surface. 0060 (Potassium Magnesium Alumi 0078. Although the invention is independent of any num Silicate Hydroxide; Fluoride) and theory explaining its effectiveness, it is theorized that Stick 0061 Zinnwaldite (Potassium Lithium Aluminum ing between adjacent Shingles in a Stack occurs principally Silicate Hydroxide Fluoride). at the hump in the region where the top of the posterior layer is bonded to the bottom of the headlap region of the anterior 0062 Minehillite (Hydrated Potassium Sodium Cal layer. This is where thickness of the shingle changes from cium Zinc Aluminum Silicate Hydroxide); two layers to one layer, producing a sharp. PreSSure is 0063) Nordite (Cerium Lanthanum Strontium Cal greatest in the Stack at this location. AS Such, it is at this point cium Sodium Manganese Zinc Magnesium Silicate); where adhesion between shingles is most apt to occur. Thus, 0064 Pentagonite (Hydrated Calcium Vanadate Sili this region is where application of a release coating, to cate); prevent adhesion, is most preferred. 0079. It is further theorized that the effectiveness of the 0065 Petalite (Lithium Aluminum Silicate); release coating is predicated upon the continuous film of 0.066 Prehnite (Calcium Aluminum Silicate particles having poor interlaminar Strength. These particles Hydroxide); peel away from each other or are easily fractured, signifi cantly reducing the force required to Separate adjacent 0067 Rhodesite (Hydrated Calcium Sodium Potas shingles from each other. Thus this coating can also be sium Silicate); and applied to roll roofing to prevent Sticking in the roll con 0068 Sanfomite (Barium Silicate); figuration. 0069. Antigorite (Magnesium Iron Silicate Hydrox 0080. The self-seal adhesive embodiment of the present ide); invention involves applying the release coating comprising a continuous film of Solid particles having poor interlaminar 0070 Clinochrysotile (Magnesium Silicate Hydrox Strength to a roofing Shingle with a Self-seal adhesive. Often, ide); roofing shingles include an adhesive applied to its bottom 0071 Lizardite (Magnesium Silicate Hydroxide); Surface that provides Sealing of the Shingle to an underlay ment, sheathing or other shingle. The coating of the present 0072 Orthochrysotile (Magnesium Silicate Hydrox invention can be applied to the Surface of a shingle in contact ide); with the Self-seal adhesive prior to packaging to prevent 0073 Serpentine (Iron Magnesium Silicate Hydrox Sticking of these shingles in bundles and Stacked on pallets. ide); That is, the coating is applied to the front Surface or back 0074 Wickenburgite (Hydrated Lead Calcium Alu Surface of a shingle that is in contact with the Self-seal minum Silicate); and adhesive of another shingle when bundled or Stacked. 0081. The roofing shingle stack aspect of the present 0075) Zeophyllite (Hydrated Calcium Silicate invention involves Stacking of the aforementioned roofing Hydroxide Fluoride). shingles one atop another Such that the top Surface of each 0.076 The particles mentioned above all meet a further shingle faces the bottom Surface of its adjacent shingle. AS requirement. That is, the particles must be capable of form Stated above, a plurality of Shingles are piled atop one ing a continuous film when applied as a dispersion. The another to from a bundle. In a preferred embodiment, 20 to dispersion, for economic and environmental reasons, is 25 roofing shingles constitute abundle. Seven to ten of these preferably an aqueous dispersion. A dispersant may or may bundles can then be Stacked on top of each other on a pallet. not be utilized to aid dispersing of the particles. 0082) A roofing shingle is typically manufactured using 0077. The present invention encompasses the utilization an apparatus to impregnate a glass mat with a waterproofing of the aforementioned coating on all or a portion of a Surface compound Such as asphalt. Subsequently, one Surface can be US 2005/0252141 A1 Nov. 17, 2005

covered with an adhesive material to which mineral granules held weighing Scale with a hook at its end, hooked the clamp are adhered to create a weather Surface. In a laminated and the force required to pull a shingle from the remainder shingle, the mineral granule coated shingle material is cut of the Stack was measured in pounds. into a plurality of anterior layerS and posterior layers. Typically the anterior layers comprise a headlap portion and 0089. A series of 11 such separations was conducted. An a butt portion. The butt portion thereof can comprise tabs average of 7.55 lbs., with a standard deviation of 1.7 lbs., with Spaces between these tabs. The Spaces and tabs are was required to Separate these non-treated roofing shingles. dimensioned So as to permit pairs of overlay portions to be COMPARATIVE EXAMPLE 2 cut with the tabs thereof in an interleaved configuration. The layers are Subsequently laminated together. This and other 0090 Comparative Example 1 was identically repeated Similar methods known by those in the art are used to but for the substitution of roofing shingles in which the manufacture roofing Shingles. preSSure point portion of the bottom Surface of the Shingle was covered with tape as typically done in the industry. The 0.083 Alaminating adhesive applicating station is used to tape used was polyester. laminate the layers during manufacturing. The anterior layer and posterior layer are brought together after a laminating 0091. A similar series of 11 separations was conducted. adhesive is applied, thus adhering them. A heat activatable An average of 4.98 lbs. with a standard deviation of 2.01 Self-seal adhesive may be applied during manufacture to the lbs., was required to Separate a single roofing shingle from Surfaces of the shingles to Seal down the Shingle when part the Stack. of the completed roof shingle Structure. Subsequently, shingles are collected Stacked front Surface-to-front Surface, EXAMPLE 1. back Surface-to-back Surface or front Surface-to-back Sur 0092 Comparative Example 1 was identically repro face to form a bundle and palletized for Shipment. duced but for the application on the pressure point portion of 0084. The release coating of the present invention may be the bottom side of the shingles of a coating of Nytal(R) 100 applied to the portion of a shingle that contacts the heat talc. The dilution ratio of the release coating was five parts activatable adhesive material used to Seal shingles down water to one part Nytal. during a roof installation. This Substantially prevents the 0093. The average force required to separate the 11 Sticking of this Self Seal material during its Stacking, Storing roofing shingles was 7.69 lbs. with a standard deviation of and Shipping. 3.74 lbs. 0085 Also during manufacture, the release coating of the present invention can be applied to the exposed bottom EXAMPLES 2-6 Surfaces of the shingles or more preferably at the described 0094) Example 1 was reproduced except that the coating preSSure points to prevent Sticking. The coating is preferably of that example was replaced with Graphite 1000R synthetic applied by Spraying the coating onto the desired location of graphite in Example 2; Microlite(R) veniculite in Example 3; the shingle and providing for a drying period. Other methods Desulco (R) graphite in Example 4; Vantal(R) 6H magnesium include brushing or wiping the coating on, dipping the silicate in Example 5; and Nytal(R400 talc in Example 6. shingle in the Suspension, or other methods known in the art. 0095 Each example involved 11 roofing shingle separa 0.086 The following examples are provided to illustrate tions. the Scope of the present invention. Because of these examples are given for illustrative purposes only, the present What is claimed is: invention should not be deemed limited thereto. 1. A roofing shingle comprising a top and bottom Surface, the bottom Surface provided with a release coating of a COMPARATIVE EXAMPLE 1. continuous film of particles having good to perfect basal cleavage. 0.087 An example was designed to emulate the sticking 2. A shingle in accordance with claim 1 wherein Said together of roofing shingles that occurs when roofing release coating is disposed on the pressure point portions of shingles are Stacked together in warm temperatures. In this example, a first Stack of unmodified roofing shingles mea Said bottom Surface. Suring 7 inches by 5 inches with the top edge of posterior 3. A shingle in accordance with claim 1 wherein Said layer lined up in the middle of the Sample going along the roofing shingle is a shingle Selected from the group consist 7inch Side was prepared. A Second Stack of identically sized ing of a laminated Shingle and a Strip Shingle. roofing shingles but wherein the top edge of the posterior 4. A shingle in accordance with claim 3 wherein Said layer lined up in the middle of the Sample going along the particles are in the class phylloSilicates. 5 inch Side was also prepared. The shingles in each Stack 5. A shingle in accordance with claim 4 wherein Said were disposed Such that the top Surface of each shingle was particles are Selected from the group consisting of Allo in contact with the bottom Surface of the adjoining shingle. phane, Apophyllite, Bannisterite, Carletonite, Cavansite, The two Stacks were thereupon croSSlaced by placing the Chrysocolla, Baileychlore, Chamosite, Chlorite, Cli two Stacks together. nochlore, Cookeite, Nimite, Pennantite, Penninite, Sudioite, Glauconite, Illite, Kaolinite, Montmorillonite, Palygorskite, 0088. The crosslaced stack was placed in an oven main Pyrophyllite, Sauconite, Talc, Vermiculite, Delhayelite, tained at 165 F. with a 50 lb. weight on its top. The samples Elpidite, Fedorite, Franklinfumaceite, Franklinphilite, were removed from the oven after 16 hours. After the sample Gonyerite, Gyolite and Leucosphenite, Biotite, Lepidolite, cooled to ambient temperature, a wood workers clamp Muscovite, Paragonite, Phlogopite, Zinnwaldite, Minehil clamped a corner of the top Samples. A Spring loaded, hand lite, Nordite, Pentagonite, Petalite, Prehnite, Rhodesite, San US 2005/0252141 A1 Nov. 17, 2005 fomite, Antigorite, Clinochrysotile, Lizardite, OrthochrySo 14. A method of manufacturing a roofing shingle in tile, Serpentine, Wickenburgite, Zeophyllite. accordance with claim 13 wherein Said water based Suspen 6. A Stack of roofing shingles comprising a plurality of Sion is sprayed onto the shingle. Said roofing shingles of claim 1 wherein the top Surface of each roofing shingle faces the bottom Surface of its adjoining 15. A method of manufacturing a roofing shingle in roofing shingle. accordance with claim 13 wherein Said water based Suspen 7. A Stack of roofing shingles comprising a plurality of Sion is brushed onto the shingle. Said roofing shingles of claim 2 wherein the top Surface of 16. A method of manufacturing a roofing shingle in each roofing shingle faces the bottom Surface of its adjoining accordance with claim 13 wherein Said water based Suspen roofing shingle. Sion is wiped onto the shingle. 8. A Stack of roofing shingles comprising a plurality of Said roofing shingles of claim 3 wherein the top Surface of 17. A method of manufacturing a roofing shingle in each roofing shingle faces the bottom Surface of its adjoining accordance with claim 11 wherein Said particles are Selected roofing shingle. from the group consisting of Allophane, Apophyllite, Ban 9. A Stack of roofing shingles comprising a plurality of nisterite, Carletonite, Cavansite, Chrysocolla, Baileychlore, Said roofing shingles of claim 4 wherein the top Surface of Chamosite, Chlorite, Clinochlore, Cookeite, Nimite, Pen each roofing shingle faces the bottom Surface of its adjoining nantite, Penninite, Sudioite, Glauconite, Illite, Kaolinite, roofing shingle. Montmorillonite, Palygorskite, Pyrophyllite, Sauconite, 10. A Stack of roofing Shingles comprising a plurality of Talc, Vermiculite, Delhayelite, Elpidite, Fedorite, Franklin Said roofing shingles of claim 5 wherein the top Surface of furnaceite, Franklinphilite, Gonyerite, Gyolite and Leu each roofing shingle faces the bottom Surface of its adjoining coSphenite, Biotite, Lepidolite, Muscovite, Paragonite, roofing shingle. Phlogopite, Zinnwaldite, Minehillite, Nordite, Pentagonite, 11. A method of manufacturing a roofing shingle com Petalite, Prehnite, Rhodesite, Sanfornite, Antigorite, Cli prising applying a release coating of a continuous film of nochrysotile, Lizardite, Orthochrysotile, Serpentine, Wick particles having good to perfect basal cleavage to a bottom enburgite, Zeophyllite. portion of a shingle. 12. A method of manufacturing a roofing shingle in 18. A method of manufacturing a roofing shingle in accordance with claim 11 wherein Said release coating is accordance with claim 11 wherein the release coating is applied on preSSure point portions of Said bottom Surface. applied to a Self Seal adhesive portion on the bottom portion 13. A method of manufacturing a roofing shingle in of the shingle. accordance with claim 11 wherein Said particles are SuS pended in a water based Suspension.