Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt |
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Page 1
Scope of Study The mineral additive -- asphalt systems included in this study consisted of three asphalts and six mineral additives at three concentrations on one grade of shingle felt . The coatings were applied in two film thicknesses ...
Scope of Study The mineral additive -- asphalt systems included in this study consisted of three asphalts and six mineral additives at three concentrations on one grade of shingle felt . The coatings were applied in two film thicknesses ...
Page 6
Granule - Surfaced , Felt - Base Specimens 7- X 11 - in specimens were mounted by nailing shingle fashion on protected decks with 4- X 7 - in tabs exposed to the weather . The decks for the smooth - surface specimens were protected with ...
Granule - Surfaced , Felt - Base Specimens 7- X 11 - in specimens were mounted by nailing shingle fashion on protected decks with 4- X 7 - in tabs exposed to the weather . The decks for the smooth - surface specimens were protected with ...
Page 7
Quite frequently , shingles are replaced because they no longer have an acceptable appearance ; on other occasions failure can be ... though ultimately contributing significantly to shingle 1 25 % Cracked 50 % Cracked Initial Spall 25 7.
Quite frequently , shingles are replaced because they no longer have an acceptable appearance ; on other occasions failure can be ... though ultimately contributing significantly to shingle 1 25 % Cracked 50 % Cracked Initial Spall 25 7.
Page 8
While carly cracking of the coating on shingles may be startling to an uninformed observer , the data in tables 6 and 7 for ... differences in thermal coefficient of linear expansion between the saturated felt and the shingle coatings .
While carly cracking of the coating on shingles may be startling to an uninformed observer , the data in tables 6 and 7 for ... differences in thermal coefficient of linear expansion between the saturated felt and the shingle coatings .
Page 15
... S. H. , Effects of Mineral Additives on the Durability of Coating - Grade Roofing Asphalts , NBS Building Materials and Structures Report 147 , ( Sept. 1956 ) . [ 4 ] ASTM D 225-65 , Asphalt Shingles Surfaced with Mineral Granules .
... S. H. , Effects of Mineral Additives on the Durability of Coating - Grade Roofing Asphalts , NBS Building Materials and Structures Report 147 , ( Sept. 1956 ) . [ 4 ] ASTM D 225-65 , Asphalt Shingles Surfaced with Mineral Granules .
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Common terms and phrases
60 percent aluminum aluminum-base specimens appearance Applied asphalt coatings ASTM base Black Slate 25 blistering Blue Black Slate Building Building Science Series Bureau of Standards California asphalt Cement Center cents Characteristics Clay Column COMMERCE Composition Coating thickness concentrations consists containing corresponding cracking criteria deterioration differences direction divisions doctor bar Dolomite durability early effects exposed exposure failed failure felt-base specimens FIGURE Fly Ash Government granule-surfaced specimens granules heated industry instances Institute Loss on ignition losses machine materials measurement method Mica Mid-Continent asphalt mils mineral additives Months Ratio Months National Bureau observed Office panel passed performances period physical prepared produced Properties provides Ratio Months Ratio reference reported Research Retained rolls roofing saturated felt sheets shingle Silica smooth smooth-surface smooth-surface specimens spalling surface tabs technical Technology temperature tests three asphalts type of specimen Venezuela asphalt Washington weather
Bibliographic information
| Title | Natural Weathering of Mineral Stabilized Asphalt Coatings on Organic Felt Volume 24 of Building science series, United States National Bureau of Standards Volume 24 of National Bureau of Standards building science series |
| Author | Sidney H. Greenfeld |
| Publisher | U.S. National Bureau of Standards, 1969 |
| Original from | the University of Michigan |
| Digitized | 18 Aug 2006 |
| Length | 15 pages |
| Export Citation | BiBTeX EndNote RefMan |