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Supplier: Accuris
Description: Standard Classification for Size of Aggregate Used as Ballast for Membrane Roof Systems
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Supplier: ASTM International
Description: 1.1 This classification defines the aggregate size designations and ranges in mechanical analyses for standard sizes of aggregate used as ballast for membrane roof systems. 1.2 The text of this classification references notes and footnotes which provide explanatory
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Supplier: ASTM International
Description: 1.1 This classification defines the aggregate size designations and ranges in mechanical analyses for standard sizes of aggregate used as ballast for membrane roof systems. 1.2 The text of this classification references notes and footnotes which provide explanatory
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Supplier: ASTM International
Description: 1.1 This classification defines the aggregate size designations and ranges in mechanical analyses for standard sizes of aggregate used as ballast for membrane roof systems. 1.2 The text of this classification references notes and footnotes which provide explanatory
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Standards and Technical Documents - Standard Specification for Concrete Roof Pavers -- ASTM C1491-11Supplier: ASTM International
Description: This specification covers concrete roof pavers that are machine-made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials, for use as roof ballast and protection of roof membranes. Requirements for
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Building integrated PV for commercial and institutional structures, a sourcebook for architects
This system can be installed on built- up and single-ply membranes of flat commercial roofs and typically weighs 4 lb/ft2 versus 10 lb/ft2 for a conven- tional aggregate ballast roof .
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Optimizing roof-integrated photovoltaics: a case study of the PowerGuard roofing tile
… 30-year assembly life is compatible with the life of PV Provides DSM benefits of improved building thermal performance Significantly extends the life of otherwise unprotected roofing membranes Is less than half the weight of aggregate ballasted roofs (4 Ibs/sf vs. 10 …
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PowerGuard{reg_sign}; Inventions and Innovation Success Story
… waterproofing materials, resulting in lower installation costs and ensuring that the roof warranty is not voided • Can be used successfully in retrofit, re-roofing, and new construction applications • 80 percent lighter than conventional aggregate - ballasted roofs , so that strengthening of …