ASTM_C_1569_-_03_2016.pdf

Designation:C156903(Reapproved 2016)Standard Test Method forWind Resistance of Concrete and Clay Roof Tiles(WindTunnel Method)1This standard is issued under the fixed designation C1569;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers a procedure to determine theresistance of concrete and clay roof tiles to simulated windeffects in a wind-tunnel apparatus.Simulated wind velocitiesof 70 mph(31 m/s)to 130 mph(58 m/s)are employed.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C43 Terminology of Structural Clay Products(Withdrawn2009)3C67 Test Methods for Sampling and Testing Brick andStructural Clay TileC140 Test Methods for Sampling and Testing ConcreteMasonry Units and Related UnitsC1167 Specification for Clay Roof TilesC1492 Specification for Concrete Roof TileC1568 Test Method for Wind Resistance of Concrete andClay Roof Tiles(Mechanical Uplift Resistance Method)C1570 Test Method for Wind Resistance of Concrete andClay Roof Tiles(Air Permeability Method)2.2 SBCCI Standards:SBCCI SSDT 11 SBCCI Test Standard for DeterminingWind Resistance of Concrete or Clay Roof TilesNOTE1This standard is based on the International Code CouncilsICC/SBCCI SSTD 11 Test Standard for Determining Wind Resistance ofConcrete or Clay Roof Tiles,and work derived from the tile industrystesting programs completed in the Redland Wind Tunnel in the UK.2.3 ASCE Standards:ASCE 7 Minimum Design Loads for Buildings and OtherStructures3.Terminology3.1 DefinitionsFor definitions of terms used in this testmethod refer to Terminology C43,and Specifications C1167and C1492.4.Significance and Use4.1 It is known that the observed effects of wind simulatedin a wind-tunnel apparatus are related to the effects observedfrom natural wind.The resistance of tiles to simulated wind inthis test relates to the resistance of the tiles to the effects ofnatural wind when they are applied to a roof.One factor in theresistance of the tiles to the effects of both natural andsimulated wind is the method of attachment specified in themanufacturers instructions.This test method determines theuplift forces acting as a result of the simulated wind when tileare attached to a section of roof deck in accordance with themanufacturers instructions.Natural wind conditions differwith respect to intensity,duration,and turbulence;theseconditions are beyond the means of this test method tosimulate.5.Apparatus5.1 The test assembly of tiles attached to a section of roofdeck is identical to that used in Test Method C1568(Mechani-cal Uplift Method)except that tile are not fitted with aload-transfer device.5.2 The test assembly of tiles attached to the roof decksection is positioned on the floor of the wind tunnel apparatusas shown in Fig.1.1This test method is under the jurisdiction of ASTM Committee C15 onManufactured Masonry Units and is the direct responsibility of SubcommitteeC15.06 on Roofing Tile.Current edition approved Dec.1,2016.Published December 2016.Originallyapproved in 2003.Last previous edition approved in 2093 as C1569 03(2009).DOI:10.1520/C1569-03R16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Conditioning6.1 See the conditioning specified in Test Method C1568(Mechanical Uplift Method)for each specific installationsystem being investigated.7.Procedure7.1 Install the tile in the same manner as on a roof,inaccordance with the manufacturers instructions,on a smallsection of roof deck constructed to fit within the wind tunnelapparatus.The rafters shall be capable of being securelyanchored to the floor of the wind tunnel apparatus,and thesheathing firmly nailed to the rafters.Roofing underlayment isinstalled on top of the sheathing and,if required,battens arenailed to the sheathing.The tile,underlayment system,androof deck section constitute the test assembly.7.2 The test assembly for the tile installation system beinginvestigated shall b