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Home My WebLink AboutCorrespondenceDave Argo From: Dave Argo Sent: Monday, September 28, 2020 1:20 PM To: Brad Jordan (bradjordanarchitect@gmail.com) Cc: Andy Schwaller (aschwaller@garfield-county.com) Subject: Ironbridge Lot 251 - Fire Rated Walls/Roofs Brad: We are currently reviewing a project for CUC located at Ironbridge PUD, Lot 251. However, before we can finalize our review and issue a building permit, we need the following item to be addressed: Fire Ratings at Exterior Walls/Roofs of Side Yards — The foundation walls appear to be located right on the 5 -yard minimum setback lines, and roof overhangs encroach an additional 16" according to plans. Although there is a vague indication (not very clear) on floor plan as to a one-hour fire -rated exterior wall, there is no specific information clearly illustrating the exact location and extents of the fire -rated assembly. There are also no specifications or details included for the fire rated walls, nor the encroaching roof overhangs above. Our office needs to receive drawings which clarify location/extent of these important fire -rated assemblies so that both the Building Department and your Contractor are clear as to detailed specifications and exact location of these requirements. We also need to receive the listed fire assemblies for walls/roofs as provided by a nationally recognized certification agency (for example, U.L. or US Gypsum Association) and this information needs to be included as part of your construction plans. Below I have included I.R.C. Table 302.1 (1) highlighted in red for your reference as to specific building code requirements: TABLE R302.1(1) EXTERIOR WALLS ExitiRlOR WALL ELEMENT MINIMUM FIRE= RESISTANCE RATING MINIMUM FIRE 5EPARATION DISTANCE �N it I Is Fire -resistance rami I ham—tested in accordance with ASTM E 119 or LI 2f63 with exposure frolic botlr skies ) — = 5 fretii' J {or fl.rr-teststartre rated fl frolics .. 5 fret Projections Not allowed NEA b 2 fee Fire tC5i%tatlfe rater[ l NMI on the underside' ., e 2 feel to -. 5 fe ei 11 Not Itre-tesista r&' rated I) hours a Itset O ieriItngs In walls Nut allowed WA ., 3leer 25'lit nlax11111n11 or a iII area I! hours 3 feet Unlimited l I} hours S feet Penetrations All Comply with Section R3[IZ,,1 s 3 feet MAC. re[lirirtst .1 feet For S[: t foot . 3(4.8 €Ent NIA m Not Applicable. 1?ool rate [11 -It 15raltce fa11111f; %lull lie IMrtT1111ed to be o'llurerl Io Il hoots on lIN' undrtstde of the VA i¢ If Iltehlorktlpl Is frr,srldr,I Im1u I)Io u:tli I€lp I>fitr trl the unilessole ❑f lhr to,'! sl .0 ltlnj. I tool c.Fs-,- ttrk,e+-.1+.1. 1Xe I.Iltltg slxltl lw. perrntlrr€i In tq• @t•+I1 r€I ta, n hoar. fi16 111 l:I1rllr41ltc eir Ilio oave'fltnn 10rd INC gable VcipniM•rlifl '. ;ue• hilt IItS1lno,l Please submit updated/amended plans that address these outstanding details so that we can finalize our plan review and issue a building permit for this project. In the meantime, we will place these drawings in our "Pending" project files while awaiting your response. Dave Argo Plans Examiner 1 - - Garfield count,• 1 Dave Argo From: brad jordan <bradjordanarchitect@gmail.com> Sent: Monday, September 28, 2020 1:50 PM To: Dave Argo Cc: Andy Schwaller Subject: [External] Re: Ironbridge Lot 251 - Fire Rated Walls/Roofs Attachments: 005 A3.1.pdf Follow Up Flag: Follow up Flag Status: Flagged Dave and Andy, Please see attached revised floor plan and additional fire rated assembly with GA File #. I have reviewed extensively for a GA or UL file number for the eave assembly. During my research, there were several agencies that stated that there is not a file number associated with the eave assembly. If you have additional information, I would be happy to put it on the detail. I have another project in Carbondale with the same detail situation, and it has been accepted by John Plano with the same explanation. Respectfully, Brad Jordan On Mon, Sep 28, 2020 at 1:20 PM Dave Argo <dargot Barfield-countv.com> wrote: Brad: We are currently reviewing a project for CUC located at Ironbridge PUD, Lot 251. However, before we can finalize our review and issue a building permit, we need the following item to be addressed: Fire Ratings at Exterior Walls/Roofs of Side Yards — The foundation walls appear to be located right on the 5 -yard minimum setback lines, and roof overhangs encroach an additional 16" according to plans. Although there is a vague indication (not very clear) on floor plan as to a one-hour fire -rated exterior wall, there is no specific information clearly illustrating the exact location and extents of the fire -rated assembly. There are also no specifications or details included for the fire rated walls, nor the encroaching roof overhangs above. Our office needs to receive drawings which clarify location/extent of these important fire -rated assemblies so that both the Building Department and your Contractor are clear as to detailed specifications and exact location of these requirements. We also need to receive the listed fire assemblies for walls/roofs as provided by a nationally recognized certification agency (for example, U.L. or US Gypsum Association) and this information needs to be included as part of your construction plans. Below I have included I.R.C. Table 302.1 (1) highlighted in red for your reference as to specific building code requirements: 1 TABLE R3O2,10) t XTERI[IR WAl 1 ti EXTERIOR WALL ELEMENT MINIMUM FIRE.RESISTANCE RATING MINIMUM FIRE SEPARATION DISTANCE Walls Fire -resistance rated l hoar—tested in accordance with ASTM E 119 or UL 263 with erasure from both sides ' C 5 feet r Not fire-resislanre rated 0 hours r :; 5 feet Projections Not allowed N/A K 2 fiat Fire -resistance rated 1 hour on the underside'' a 2 feet to < 5 reel :.! 5 feet 04 ire-11!starve rate hours.— — Openings In wadi -4i Not allowed ed NIA ‹ 3 feet ZS% maximum of wall area 0 hours 3 feet Unllnt[ted 0 hours a feet Ferictr.atlons All Comply with Section R302,4 < 3 feel None required 3 feet For SI: l foot 344.8 ince nr:.a • Not Appltrable. �.r. Root teat,n itre.rnsl%ran[e rating siult !ee Imruruted to be ri nIuued to n folds on MC uneit•rIrIr nr Ilu• ewe If heal x iaIttg is pros leirei boson ilio^ wall flip plata to the oriole rxtalr fir IMP podslarailring. Lli Roo( ova. ItteqeSlsIano. %hall be IN•rrnlnrel toy be relf.Keit to 4 butte,. esu the un4Irntde KA the rant I sns IdrtI INC %obis aril i if.nmg .ue• not Irbtailevi Please submit updated/amended plans that address these outstanding details so that we can finalize our plan review and issue a building permit for this project. In the meantime, we will place these drawings in our "Pending" project files while awaiting your response. Dave Argo Plans Examiner Carf eld County 1 Community Development Department 108 8th Street, Suite 401 Glenwood Springs, CO 81601 Tel: 970-945-8212 Ext. 1610 Email: dargo@garfield-county.com Web: Garfield-county.com 2 2x FIRt5LOCK,ING AS AN OPTION cN LIIL Of TYPE k GYP5Ohil WALLBOARD AT EAVE/RAKE 2)4 z3LOC.K.N5 ONE. '1',(PE X GYSLjM WALIBOARD AUD EAVEIRAcE wrrhl Tyrt OR W DRYWALL 5CREW5 I 2" 0.C. ON LAYER. TYPf GYP5LIM 'WALLBOARD AF'Pi2ED .90° TO EACH, 5DE Or' 2 x G WOOD STUDS I 6" C.C. Wri'd 2 TYPt 5 oR W DRYWALL SCREWS 2'' O.C. (GA FILE 8 I 05) 1 Hour Wall & Eave 1"= l'-0" ; ,-"-- ..---- ! 4 -----=------ c., Of C Ot i,., 1.."4,9, - co , C) \ BRADLEY APS* ,VaVilil_ I I 5 Ir., P6P- -,;_es--Argiftw" . ...- ED ,. 27'-0° 27-O° 2C-4" t4• 4'-61" 5.' 21._1. 5 5 2 5•- 5'•I• 5.-8' i \ N P 0 COVEReD I BLAB T. COMGBC' 312-IO'3'in' 4 7 °ops '\ Ia FT -- 9 n -. \ I G D — — \ ro MASTER BEDROOM T -2-4l5 4> GREAT ROOM r. CONCILIr M71, 4> I HR WALL I HR EAVE V T. 0:4iDet t. 9iW5 Io97Cgp xarerotam. 2 CAR GARAGE 20x2 I -5. 3. 6• 2' 2.. rr G. MASTER CLO5CT 3 -6z 2.5• 2-3' A.2•'9 IACC. 5.-a o1 0 11 HALL 0 BEDROOM 2 I Ix! I'.G 2 5" 511 -usi txD r SD� -r wucalx TRASH STORAGE L ' IHR. EAVE 0 �wismic yl"-- EKED� pTRY 9 • BEDROOM I BATH JLf L 2• I' .4" 3 7 4' 12' 0' 3 3-a 2 8Z 2 3-7 1 2-I' 2'. 9.5-k 5'•O' 8-2' 54%0' - = I HOUR RATED WALL I OK ASSEMBLY (SEE DETAIL WALL ON SHEET A 5.11 •�'pI.2 4 8 16 "2z FIREBLOCKING A5 1010vI101rl LMT! 0,8 TYFE X GYF511M WALLBOARD AT EAVDRAKE 2. BLOCKING oNE uYERe no, r. GYPSUM WALLBOARD APPLIED EAVORAKE SOFFIT WITH 21• TYPE s OR W DRYWALL SCREWS I P.O C ONE LAYER; TYPE I GYPSUM WALLBOARD APPLIED9O°TO EACH ' CC OE �t (CM/015 SIMS IB oc WITH2tTYPE sat w DRYWALL 502.5 I2' 0 (GA FILE 81051 1 Hour Wall & Eave Main Level Floor Plan 1538 SF L1VABLE/460 SF GARAGE Y•= t:o" PLAN NORTH 0000❑❑ O • U C) it 0 U U U .0 I C/) b b 0 i -I I--1 T--1 1n N 0 O 'ald ,0 UN N r-1 O u oN V .112 b cd'� W u 00 Date 09-04-20 Permit Revisions 09-28-20 Bldg. Dept. Sheet A3.1 000000