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SolarMount Unicac_Code-Compliantlnstallation-Manual #UNIRAC
<br />Table 3. pneoo (psf) Roof Overhang
<br />Etkcf
<br />¥And Areo 1 . : · -
<br />Zone (s# AO . I OO .·.110
<br />2 10 .-il:O''-'-25.9 , :··-231.4
<br />2 20 1-20.6 -25.5 (··:30,8
<br />3 2 50 -24.9 0,36.1
<br />2 100 4.-'19.8...-24.4 ,/->1 9.5
<br />3 '10 -42.7 2..2-51....6'
<br />BaskWind Speed,:V (mph)
<br />/20 ·130
<br />-37.3
<br />41 -36.7 -45.0
<br />:f'· 4 -35.8 :14702,
<br />...'.:.: -35,1 C.a.ffl.-1..-2 -4 .-
<br />i}· * '.- .:1,-.2; .- :. 1
<br />-61.5 ..,-:T-7.2.-14·..:-
<br />/40 150
<br />-50.8 -583·
<br />-49.9
<br />-48.7 L .·-,453.9.Lt·'.
<br />-47.8 10.195#19.-:t
<br />-83.7 1 . ..9610*:
<br />3
<br />.t:j
<br />:z:i
<br />3.-1
<br />/70
<br />-74.9
<br />-73.6
<br />-71.8
<br />-70.5
<br />-123.4
<br />3 20
<br />3 50
<br />3 100
<br />2 10
<br />2 20
<br />2 50
<br />2 100
<br />3 10
<br />3 20
<br />3 50
<br />-.1. ' -33.5
<br />-21.4
<br />.,710'.6 :-' ) -12.2
<br />21;Al ,2 -33.5
<br />-2*01: ' t 1 -33.5
<br />' ,1272 7 -33.5
<br />-56.4
<br />-50.9
<br />-43.6
<br />····40.5.L·-1 -48.3 1 0.456.6..:.
<br />1; 425.9....... i -30.8 ' · 2436.'1 .
<br />·: : 14.8 -hE -17.6 4 I-28'.4.1,-i
<br />.40.6. C- f -48.3
<br />-40.6. ..<., '1 -48.3 L !' ie-56:Z..... '
<br />.%40'6'···,'ti,-48.3 ..·<,56:7.,.... i
<br />' 'f 410-'6'.-·... -48.3 ......256.1.t
<br />·r.-68.3 -'·,·· -81.2 "'.· 595.91-- 4
<br />-73.3 3''f ?866 0 · r
<br />,..32.8 , -62.8 8- · · -73 7..' ' '
<br />-65.7
<br />-41.9
<br />-23.9
<br />-65.7
<br />-65.7
<br />-65.7
<br />i-65.7
<br />-110.'6
<br />-99.8
<br />-85.5
<br />t .45.Al· 9,: -96.8
<br />I.-: 448. l <i'· '3] -61.8
<br />--,57.4 :9.4 -35.2
<br />' .,i 1.-jiVI€· -96.9
<br />'·9 ··-75.51.% ..3 -969
<br />1......:108>2 jil -96.9
<br />...·; ·r:iya--'1:21 -163.0i' - FI'liYE!| -147.1
<br />- · '-98. i f f ··2 -126.1
<br />3 100 .-30.9'7
<br />2 10 ·424.7 20
<br />2 20 -:.124.4 4 -
<br />2 50 ...,23.6 .
<br />2 100 4.*i)·,
<br />3 10 ':t--9-.7... '
<br />3 20 ' -T:2.0 + ,
<br />3 50 - N:25.0 -,
<br />3 I 00 -81%.2-'=
<br />1
<br />-38.1 ·--34:.-1.....-54.9 ., - -' f,8.,9 -· · ..f';-74,7 2 - -.F85:82-9,4
<br />-30.5 t ·:·':,3-6.*LH'·, -43.9 2-1..",51..525:-, -59.8- - f.13*..6.jy
<br />-29.6 '';0 135 8, m -42.6 3·.. ..9&6-4/71 -58.0 2; ·:-66:5:pr:...,4
<br />-28.4 i'·?··'-:fi'd.: )7 -40.8 ..OF.' 7.4..fi·-i -55.6 :t.- ·-%41.Ri'*1
<br />-27.4 *2833*ft}j. -39.5 ,·.4., 2,36.9 -,2.-1 -53.8 £ 216: 67'-7-4
<br />-30,5 1.t·.:-932..9-3-'·9 -43.9 94*·-·31 -59.8 J. 0)6.4-Ft?.'M
<br />-29.6 90*:8649 -42.6 2 3150.02....i -58.0 12.4'66.5-9'2
<br />-27.4 --2'-,·-33'.21-21-A: -39.5 k.=%46.4..-<-2' -53.8
<br />-110.1
<br />-88.1
<br />-85.5
<br />-82.0
<br />-79.3
<br />-88.1
<br />-85.5
<br />-82.0
<br />-79.3
<br />Source: ASCEJSB 7-05, Minimum Design Loads for Buildings and Other Structures,Chapter 6, p. 44.
<br />Step 5: Determine the Topographic Factor, IG
<br />For the purposes of this code compliance document, the
<br />Topograph k Factor, Kst, is takenas equal to one (1), meaning,
<br />the installation is surrounded by level ground (less than 10%
<br />slope). tf the installation is not surrounded by level ground,
<br />please consult ASCE 7-05, Section 6.5.7 and the local building
<br />authority to determine the Topographicactor.
<br />Step 6: Determine Exposure Category (B, C, DJ
<br />Determine the Exposure Category by using the following
<br />definiti;ons for Surface toughness Categories.
<br />SURFACE KOUGHNESS C: has open terrain with seat-
<br />tered obstru{lions having heights generally less than
<br />30 feet. This category includes flat open country,
<br />grasslands, and all water surfaces,in hurricane prone
<br />regions.
<br />SURFACE RoUGHNESS D: has flat, unobstr ucted areas
<br />and water surfaces outside hurricane prone regions.
<br />This category includes smooth mud fiats, salt flats, and
<br />unbroken ice.
<br />The ASCE/SEI 7-05 defines Wind surface roughness
<br />categories as follows:
<br />SUR.FACE RouGHNESS B: is tirb,·an and suburban areas,
<br />wooded areas, or other terrain with numerous closely
<br />spaced obstructions havjng-the size of single family
<br />dwellings
<br />Also see ASCE 7-05 pages 287-291 fc,r further explahation and
<br />explanatory photographs, and confirm your selection with the
<br />local building authority.
<br />1
<br />Paze
<br />7
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