M M M M P T s t A __________ Memorandum Memorandum Memorandum Memorandum Purpose The purpose successfully the previous Additional B 1. Maso Ques 1.) P F P o b 2.) O O O T tr 3.) P B w S b 4.) P th ________________ m #1 Jan m #2 Fe m #3 Fe m #4 Fe e of this add on this proj addendum. Bidding Info onry tions: Page S000 S Foundation W Please Confir f the standar ond beams c On Page S00 O-Wall) is 1 O.C. What is The use of la russ reinforc Please Confir Block. See ele will match th plit face blo etween C.L. Page A202 D he same pag _______________ nuary 29, 201 ebruary 6, 201 ebruary18, 20 ebruary 25, 20 BI dendum is to ect. Present ormation Section Rei Walls. On Pa rm. The shea rd bond bea carry the roo 00 Section R 16” O.C. O s the Typical adder or trus ing shall be rm that all C evation page he wall type t ock, the back 1 & 2, from Detail 1/A20 ge Detail 2/ ________________ 19 19 19 019 ID MEM o provide th ed below ar inforced Ma ages S410 a arwall elevat am locations of load and tr Reinforced M On Page S41 l Horizontal ss reinforcem 3/16” x #9 H Color 8D Ban es for the Sp that is called k will be sta m C.L. 2 to C 2 Right Elev /A202 Left E _______________ MORAND he contractor e questions asonry RMU nd S411 She tions are sho per CMU D ransfer the ro Masonry RM 10 at all D l Reinforcem ment at 16” Heavy Duty. nds and Pila plit face bloc d out for eac andard Block C.L. 4 will be vation show Elevation sh _______________ DUM #4 r with addit and answers U-9 states ear Wall Ele owing additi Details and/o oof diaphrag U-8 it says Details show ment Spacing o.c. is accep . asters are St ck or Standar ch section. T k, and the le e standard B ws Splitface B hows Splitfa _______________ tional instruc s presented there is a evations do ional bond b or the gener gm shear to t Horizontal R wn says #4 H g and Mater ptable throu tandard Bloc rd block call The Front and eft Side will Block. Block from ace Block fr ________________ ction in ord since the iss Bond Beam not show thi beans that are ral notes pag the shearwal Reinforceme Horizontal rial? Rebar v ughout. The ck and NOT louts. The co d Right Side be split fac C.L. 1 to C. om C.L. 1 t ______ der to bid suance of m Top of is Detail. e not part ge. These ll. ent (Dur- @ 2’-0” vs. Wire? ladder or Splitface olor band es will be ed Block .L. 5. On to C.L. 2
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A
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MemorandumMemorandumMemorandumMemorandum
Purpose The purposesuccessfully the previous
Additional B
1. Maso
Ques 1.) P
FPob
2.) OOOTtr
3.) PBwSb
4.) P
th
________________
m #1 Janm #2 Fem #3 Fem #4 Fe
e of this addon this projaddendum.
Bidding Info
onry
tions:
Page S000 SFoundation WPlease Confir
f the standarond beams c
On Page S00O-Wall) is 1O.C. What isThe use of laruss reinforc
only. Is this the intention? Yes, this is correct, The Right Elevation is toward KMD therefore we want this entire wall to be a textured finish. The left elevation will have a tenant space with an available outside seating area (southern exposure), therefore we are wrapping the split face block around the corner and stopping that at C.L. 2, The Pilaster at C.L. 2 will be split face block.
5.) On pages A100 and A101 Sign Details show conflicting use of 8” Splitface Block (Color 8D)
and/or 12” Splitface Block (Color 8D) at the Base of each sign depending on which Detail you look at? Please confirm the Use of 8” Splitface CMU (Color 8D) at the Base of Both Signs to be Typical. You are correct, use 8” split face Block at the base of each sign.
6.) S000, masonry note RMU-8 indicates the use of #6 rebar in 10” and 12” CMU. Is this note
incorrect? The note on RMU-8 is correct. The #6 vertical bar shall be required from within the foundation to a minimum of 8’ height above grade. This will affect the S100 series wall sections which incorrectly show #5 bar at those locations.
7.) Same note indicates the use of 3/16” reinforcement wire. Please verify if it is 3/16” x 9ga. “Heavy Duty” or 3/16” x 3/16” “Extra heavy Duty. 3/16”x#9 Heavy Duty
8.) Please verify the use of Truss reinforcement wire versus Ladder wire as shown on S402/2. Truss wire may cause grout interference particularly in reinforced cells that are congested with multiple rebar, splices and positioners. Ladder wire reinforcing is acceptable.
9.) Pilaster block as shown on S401/6 are not available through local manufacturers. Cutting chimney block to fit will require filler pieces susceptible to movement during grout vibration and disrupt bond pattern. Is a clearer detail available that addresses the use of standard CMU? From the same discussions in September 2018 I contacted Gagne Block concerning this matter. I was told that with a project this size they did not see a problem with casting the pilaster block in the two colors as required by this project.
10.) Will a Structural steel detail be available indicating method of tying in one or both walls to pilaster or will strap anchors be acceptable since both walls to pilaster now have Control Joints? Details S401/4 and S401/5 are both acceptable methods of attachment along C.L. 1 and C.L. A.
11.) Shearwalls on Drawings S410 and S411 appear to have 2 - #4 rebar at 2’ OC Horizontally NOT placed in a Knock-out course. Should these bar be in grouted cells such as knock-out CMU? Please refer to Question 2.
12.) Flashing such as “Blok Flash” has not been indicated for use in empty cells per Drawings
or Notes. Omitting this type of flashing will cause efflorescence to form on the exterior walls due to moisture migration. Flashing product is normally used above all Foundation walls and Bond Beams to drain empty cells. Please verify flashing use is not required. Flashing in
the empty cells, as described in this question, shall be a requirement of this project. BlocFlash, or an approved equal, shall be required.
13.) S000, Masonry note RMU 9, states a Bond Beam is required at all wall bottoms and top of
walls. Only Shearwall sections appear to have them but all other Wall sections, Structural or Architectural do not. Please clarify. There shall be a bonding course at 12’ above grade and at the top of each parapet. There shall also be bonding coursing along Column Line 4 and 5 to transfer roof shear from the diaphragm to the exterior walls. Also, as shown in the shear wall reinforcing elevations on Sheets S410 and S411, there shall be additional bond beams along the shear walls to transfer diaphragm shear from the roof to the walls as well as transfer vertical load of the bar joists to the wall. This transfer occurs at the roof slope requiring the bond beam to be a multi-course configuration.
14.) The SplitFace Pilasters at building front bump out by 4”, I assume the 4” ends or “sides” of
the Pilaster should be SplitFace as well? Can this be verified? All pilasters along Column Lines 1 and A shall be splitface on all exposed sides.
2. Roof
I have received the attached questions and answers from a roofing company. Please refer to the sloping and parapet details as presented by a respectable local roofing contractor. In my conversations with this contractor it was stated that this method could save to developer between $30,000.00 and $40,000.00 from the details shown on our plans with the same results. Therefore I would ask each bidding contractor to consider this option.
Roofing Cover Board Roofing Cover Board shall be ½” Carlisle Secure Shield Plus or an approved equal. Roof Warranty Roofing shall carry a 20 year Total System Warranty.
3. Construction Layout
Please carry $8,600.00 for construction layout. This shall a survey crew to be on site for four construction layout times, including, but not limited to, building layout; parking lot and driveway layouts; utility layouts; and one additional layout per contractor.
Bids shall be submitted electronically to Nathan Mangin at: [email protected] And myself at: [email protected] Very truly yours, WENTWORTH PARTNERS & ASSOCIATES
Steven C. Govoni Steven C. Govoni, P.E. M.ASCE President