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Report (4) wrbdo —0421Fs q CT ENGINEERING N C 180 Nickerson St. Suite 302 Seattle,WA 98109 (206)285-4512(V) (206)285-0618(F) BULLETIN Date: April 7,2021 Number: CT-08 Project#: 18162 Project Name: River Terrace Area 4 Roshak Row Houses Attached: None Subject: Deck Ledgers Drawings Affected: Description/Action: This bulletin provides response to RFI, design clarifications and/or variation requests for the 'River Terrace Area 4 Roshak Row Houses' project located in Tigard, Oregon. Per our discussion with Taylor Morrison, it's our understanding that 2x8 deck ledgers were installed at locations where the plans show 2x10 deck ledgers. Based on our review of the plans, 2x8 deck ledgers are an acceptable substitution for 2x10's provided the deck ledger fasteners are installed as noted in the "Typical Deck Framing" detail (18/S9.2)and that no portion of the deck joist hanger shall be below the bottom of the deck ledger. Please note that the architectural plans may require different deck ledger sizes depending on the type of deck used. S-sRUC TURq( c(Ec) PRDp I` \G I NF ��>, AtAk ON q�C • 12, ti�eSk.. F. RO 04/07/2021 CALL WITH ANY QUESTIONS Issued by: Arnold R. Solomon Date: April 7, 2021 Distribution: Contact Information: Dennis Gaudreault Taylor Morrison Frank Sandoval Taylor Morrison Sam Scott Taylor Morrison Amy Russell Taylor Morrison David Burnett Milbrandt Architects K:118162 River Terrace Area 4 Roshak Rowhomes\Phase A(Rowhomes)\Bulletins\18162_2021.04.07_CT08_Deck Ledgers.doc Structural Engineers Bulletin MILBRANDT AR(HITE(TS k Bulletin#: MA-18 Date: 4-7-21 ATTACHMENTS: D6(Waterproof) Job Name: River Terrace Area IV Row Homes Job No: 1503 It has been conveyed to Milbrandt Architects that some or all of the buildings at RT IV Row Homes are being constructed with waterproof decks as opposed to the spaced decking(a.k.a.dripper deck)shown on the plans.This change is acceptable to the architect assuming the appropriate modifications are made.One point of specific interest is the ledger size being called out in the framing plans and details.A separate bulletin has been issued by the Structural FOR discussing the structural aspects of the ledger.From an architectural standpoint the 2x8 ledger is acceptable and preferred where the decking material is waterproof as indicated in the attached D6 sheet. Note:This bulletin does not approve the use of a 2x8 ledger for use in a spaced decking condition.In a spaced decking condition a 2x10 ledger shall be used per the original 12D/D6 spaced decking detail. Distribution Job Site Sam Scott Adrian Adams Client Amy Russell Struct.Eng. Arne Solomon witaitiomo 25 CENTRAL WAY SUITE 210 : KIRKEAND, WA 98033 : 425.454.7130 WWW MILBRANDTARCH.COM ATT. ow; ! 00100911011 II ! ! m &oax I ' I COMPO.ORRo ! ICI o �� xE.a nwsrc I ma 1 ate i �- o 10.o[AVAa RA„oi '11 11 11 MIC .5. i . A 1-_-..N - - I . I �� Ras,.�R .. W == `-\ m FAsaA 1.' I' AT x.•ac I xRR FA&u �� i m FASCIA ;' ,xRUrss RRof,&rsLT AT Se LLD s Mitt/tit nAM I♦ t ♦ ♦ j ♦ ♦ mmyas s jt Raa r ~ AT xa•ac t y- �tlTl2Gf i -li i� 11 �1 11 61 &a� AT x,•acR 1fL X • t F_f Pia l i �awa -aaoato BOND KM I��, - tibtOr &coonr AS MED. 1r-x^s=r. ' -.Oil llBEYOND II s IIr�, I I% I j �S e> LEDGER coax rim nir�mis PER ARM % '/ PER FLEWS. q : � =�i EASE REAM O FLAT O STEP I O SINGLE DECK O FLAT•DUAL DECK ROOFS Srd or 09�60 R-xc ur. i��I •• 6 COMMON WALL AT DECK;LOW ROOF .. i IIXIEPMPI EY&6 b DLY O t-o--r-o- SECTION O ROOF AT CANTILEVERED FLOOR(COND.ATE UNITS ONLY) A v �� f as.- trrK nwv.n ,.i4 l �` o�u W atunna E1� 1x woks _- � iRYGT I =wea #1.1 IIIII.I %WO I MAGDA PALS ay. AvnEo dAT gee, lum Pa \/',`% AT MwPu&mMOP�a .il I'. REF&I.PLASM • s R zRr r. _ .C,..,..� art MS ern, 9.1,11 Il ill II D.PA. i1,1.1� to y EDGE O b,FW M P 0, -0.W O/A/FA&U WR RPROCE I KUL L W S ®Ox0i=�i .;�., DEaon stR= FL9bn @' I i x ami. n --- -0 Pei APO R Pam w 1' FI ; • AA MGM I ,. GPM mrrT I V Op ROOF AT WALL SECTION(COND.AT E UNITS ONLY) -RAIL SM. ii— VI i _ _ _ I fl PIPEUL oo•cO01 j I' y 111 *AMMO RAIL , AT A'OCrtg i •F p SZ�� um wmanoaP xa APPLIMAI ED MO �' WPM 1_�wRx m s i_� li j m f 1 p .ii I m vsc,,Wu ro e.MD x MO'oRE AN S r rRCRLcoL re I 1 Fa surf - ,- ,&n.,R,a AroiRY COMFR EsRwnAi k 1 P�i.aa'.P[ !�9 - -- - • • FIAT STEP SINGE DECX III-- - -- A B c � � O O O �II S11�7 's TM" "'"aQ r UNITS O] COMMON WALL AT DECK 11i._ .,~ CO_, SECTION o _ O gill . l'iL co E: a VD., �� P.T. •RCA WO MY P.i.BOTIW MlF P.i.Rmra M1F �� a) g V G mac SLOES R•/FOOT col•De OR O DECK SECTION AT WALL Rii, Isd g r re AIR : '. _t..,: li �,hi,► I fig W & a >: UR.PA UR POSE Y P.ATOM II/ I POSE 0 e I © IST Una L aVI1ER 1� IN u 1__ o1wonr _I 11-11 -11- E 4 • Tr II P I=1 °t I — I I . II11= _'=11= ' HAP. I=11 i= L=1 I 11 =1 11 t4 L- 11 11- PS IL=I II 1111= -11 11=R=1 . Roc romp _=IF a -B-= =71=7G ()POST PLAN 0 DECK SECTION AT FOUNDATION O PATIO/PATIO O PATIO/RNISHED GRADE O20 DECK DETAILS COMMON WALL FOOTING AT PATIO DeY ""i i-,/x•-r-o- SECTICN7 O ,-,n•-t•-o• SECTION srau.: ..ia..:ABUFRESD D6 r