BID MEM ORAND
Transcript of BID MEM ORAND
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Purpose The purposesuccessfully the previous
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Bidding Info
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Page S000 SFoundation WPlease Confir
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Page A202 Dhe same pag
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nuary 29, 201ebruary 6, 201ebruary18, 20ebruary 25, 20
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00 Section R16” O.C. Os the Typicaladder or trusing shall be
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o provide thed below ar
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Color 8D Banes for the Spthat is calledk will be sta
m C.L. 2 to C
2 Right Elev/A202 Left E
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MORAND
he contractore questions
asonry RMUnd S411 Shetions are shoper CMU D
ransfer the ro
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nds and Pilaplit face blocd out for eacandard BlockC.L. 4 will be
vation showElevation sh
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r with additand answers
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asters are Stck or Standarch section. Tk, and the lee standard B
ws Splitface Bhows Splitfa
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tional instrucs presented
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ction in ordsince the iss
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C.L. 1 to C.rom C.L. 1 t
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Splitface olor band es will be ed Block
.L. 5. On to C.L. 2
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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
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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