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Installation Manual 802 

SunFrame™ Code-Compliant Planning and Assembly

Kyocera KC120 / KC125G

24" rafter (foot) spacing             34 

187       281        374          468

32" rafter (foot) spacing             45 

249       374        499          623

48" rafter (foot) spacing             68 

374       561        748         NA*

Kyocera KC158G / KC167G

24" rafter (foot) spacing             28 

169       254        339          423

32" rafter (foot) spacing             37 

226      

339         452           564

48" rafter (foot) spacing             56 

339       508        677          847

Photowatt PW1250

24" rafter (foot) spacing             30 

163       245        327          408

32" rafter (foot) spacing             39 

218       327        436          544

48" rafter (foot) spacing             59 

327       490        653          817

Photowatt PW1650

24" rafter (foot) spacing             31 

162       244        325          406

32" rafter (foot) spacing             41 

216       325        433          541

48" rafter (foot) spacing             62 

325       487        649          812

Sharp 70, 140

24" rafter (foot) spacing             26 

153       229        306          382

32" rafter (foot) spacing             34 

204       306        408          510

48" rafter (foot) spacing             52 

306       459        612          765

Sharp 165, 175, 185

24" rafter (foot) spacing             35 

207       310        413          517

32" rafter (foot) spacing             47 

276       413        551          689

48" rafter (foot) spacing             70 

413       620        827         NA*

Sharp 167

24" rafter (foot) spacing             28 

174       261        349          436

32" rafter (foot) spacing             37 

232       249        465          581

48" rafter (foot) spacing             55 

349       523        697          871

Shell SQ140, SQ150, SQ160

24" rafter (foot) spacing             32 

213       319        425          531

32" rafter (foot) spacing             43 

283       425        567          708

48" rafter (foot) spacing             64 

425       638        850         NA*

To meet code, your design point loads (capacity per footing) must be at 
or above those indicated. The installer is solely responsible for verifying 
that the roof can withstand these design point loads. For specifi cations 
based on design wind pressure values greater than 50 pounts per square 

                                                     

     Minimum design live load

                                       Minimum      as a function of
                                           design      design wind pressure
                                             dead     
                                              load      20 psf  30 psf 

40 psf 

50 psf

ASE 300

24" rafter (foot) spacing             58 

248       373        497          621

32" rafter (foot) spacing             77 

331       497        662          828

48" rafter (foot) spacing           116 

497       745       NA*         NA*

AstroPower APi100,   APi110

24" rafter (foot) spacing             33 

194       291        387          484

32" rafter (foot) spacing             44 

258       387        516          646

48" rafter (foot) spacing             66 

387       581        775         NA*

AstroPower APi165,   APi173

24" rafter (foot) spacing             34 

194       291        388          485

32" rafter (foot) spacing             46 

258       388        517          646

48" rafter (foot) spacing             69 

388       582        775         NA*

BP Solar 3160, 4160, 5170, SX150

24" rafter (foot) spacing             33 

208       313        417          521

32" rafter (foot) spacing             44 

278       417        556          694

48" rafter (foot) spacing             67 

417       625        833         NA*

Evergreen EC94, EC102, EC110

24" rafter (foot) spacing             35 

208       312        416          520

32" rafter (foot) spacing             46 

277       416        555          693

48" rafter (foot) spacing             69 

416       624        832         NA*

                                                     

     Minimum design live load

                                       Minimum      as a function of
                                           design      design wind pressure
                                             dead     
                                              load      20 psf  30 psf 

40 psf 

50 psf

Table 2. SunFrame™ Loads (pounds per footing) at Standard Rafter Spacings

foot, contact UniRac. In general, the minimum design live load equals the 
footing spacing times the rail spacing times the design wind presure from 
Table 1.

*NA = not applicable. Never allow total load (live load plus dead load) to  

exceed 1,000 pounds per footing.

Table 3. Lag Screw Design Pull-Out Values

(pounds per embedded 1" thread depth)

in Typical  Roof Truss  Lumber

 

Specifi c

 

Lag screw

 

gravity

 

5/16" 

 

3/8" 

 
Douglas Fir  — Larch 

0.50 

266 

304

Douglas Fir  — South 

0.46 

235 

269

Engelmann Spruce, Lodgepole
Pine (MSR 1650 f  & higher)  

0.46 

235 

269

Hem  — Fir   

0.43 

212 

243

Hem  — Fir  (North) 

0.46 

235 

269

Southern Pine 

0.55 

307 

352

Spruce, Pine, Fir 

0.42 

205 

235

Spruce, Pine, Fir
(E of 2 million psi and higher
grades of MSR and MEL) 

0.50 

266 

304

Sources:

  UBC 1997,  American Wood Council.

Notes:  (1) Thread must be embedded in a rafter or other structural roof 
member.  (2) Pull-out values incorporate a 1.6 safety factor recommended 
by the American Wood Council. (3) See UBC for required edge distances.

Thread

depth

*NA = not applicable. Never allow total load (live load plus dead load) to  

exceed 1,000 pounds per footing.

Summary of Contents for SUNFRAME - INSTALLATION 802

Page 1: ...splicing requirements 9 Material planning for rails and cap strips 11 Frequently asked questions about standoffs and roof variations 12 October 2003 Pub 031016 2ii 2003 by UniRac Inc All rights reser...

Page 2: ...Page 2 Installation Manual 802 SunFrame Code Compliant Planning and Assembly...

Page 3: ...t The term chalking applies to the powdery residue formed by the breakdown of the anodized finish It does not apply to any foreign residue deposited on the finish by the surrounding atmosphere includi...

Page 4: ...tal screw No 4 x 1 2 Use 2 per end cap to secure end cap to rail 410 stainless steel with or without black oxide coating to match PV module frame 8 L foot Use to secure rails either through roo ng mat...

Page 5: ...building authority Figure 2 Minimum Basic Wind Speeds Reproduced from UBC 1997 Vol 2 Structural Engineering Design Provisions Chap 16 Div III Wind Design Fig 16 1 Minimum Basic Wind Speeds in Miles p...

Page 6: ...ng refers to the space between L feet or standoffs if used along the same SunFrame rail Fig 3 Foot spac ing may not exceed 48 inches For the rafter spacing at your installation consult Table 2 facing...

Page 7: ...1 497 662 828 48 rafter foot spacing 116 497 745 NA NA AstroPower APi100 APi110 24 rafter foot spacing 33 194 291 387 484 32 rafter foot spacing 44 258 387 516 646 48 rafter foot spacing 66 387 581 77...

Page 8: ...Module length see caption 3 4 1 1 2 Array length Roof peak 1 Laying out the installation area Always install SunFrame rails perpendicular to rafters These instructions assume typical rafters that run...

Page 9: ...feet with respect to the lower edge of the roof as illustrated in Figures 5 and 6 Drill a 3 16 inch pilot hole through roof into the center of rafter at each L foot lag screw hole location Squirt weat...

Page 10: ...sual appeal and material conservation see Material planning for rails and cap strips p 11 Slide the rst module into nal position at one end of the array Lay the remainging modules in the top row modul...

Page 11: ...ents with one segment spliced into each of the rst two rails Similarly ve 192 inch cap strips are numbered V through Z All cap strip segments are cut at the midpoint between prepunched screw holes For...

Page 12: ...ashings are described at www oatey com Your choice of sealant depends on roo ng material How do I attach SunFrame to a standing seam metal roof A good solution comes from Metal Roof Innovations Ltd MR...

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