PROJECT No.18044 MCA ADDENDUM No. 3 April 29, 2020 Page A3-1 WINCHESTER P.S. CHILDCARE RENOVATION 70 Watford Street, Brooklin ON Tender No. 20-30 DURHAM DISTRICT SCHOOL BOARD N:\18044 - Winchester P.S\08_BIDDING & CONTRACT\ADDENDA\Addendum No. 3\Addendum No. 3.Docx A3.1 GENERAL .1 This Addendum forms part of the Contract Documents and amends the original Specifications and Drawings, dated April 9, 2020, Addendum No. 1, dated April 22, 2020, and Addendum No. 2, dated April 23, 2020, as noted below. .2 Receipt of this addendum shall be acknowledged in the Bid Form. .3 Ensure that all parties submitting bids are aware of all items included in this Addendum. A3.2 PROJECT MANUAL - VOLUME I: BIDDING REQUIREMENTS .4 REF: No amendments to Bidding Requirements in this addendum. A3.3 PROJECT MANUAL - VOLUME II: CONTRACTING REQUIRE IN THIS ADDENDUM.MENTS and ARCHITECTURAL, & STRUCTURAL SPECIFICATIONS .1 REF: Section 06 20 00 - Finish Carpentry .1 3.04 WOOD TREE BOXES ϭ Change the title to read WOOD TREE BOXESSANDBOXES Ϯ Change paragraph ϯϬϰϮ to read Construct tree planter bodžes and sandbodžes .2 REF: Section 09 51 00 ʹ Acoustical Ceilings .1 2.01 ACOUSTICAL PANELS .1 Add paragraph 2.01.2 as follows: Acoustical Panels Type 2 (ACT-2) ʹ Gypsum Board Tile ceilings: .1 Type: gypsum core acoustical units with sealed edges and vinyl face and back. .2 Pattern: fine textured. .4 Smoke developed class of 50 or less. .5 Noise reduction coefficient (NRC) designation of 0.10 minimum. .6 Ceiling Attentuation Class (CAC) designation of 40 minimum. .7Light Reflectance Range of 0.77 and above. .8 Edge type: square. .9 Colour: white. .10 Size: 13mm thickness, 610mm by 1220mm. .11 Shape: flat. .12 Minimum weight: 9.77kg/m 2 . .13 Acceptable products: .1 CertainTeed Ceilings: Protectone Vinylrock X, 1140-CRF-1 .2 CGC Interiors: Sheetrock Brand Lay-in Ceiling Tile ClimaPlus, 3270
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PROJECT No.18044 MCA ADDENDUM No. 3 April 29, 2020
Page A3-1
WINCHESTER P.S. CHILDCARE RENOVATION 70 Watford Street, Brooklin ON
.1 This Addendum forms part of the Contract Documents and amends the original Specifications and Drawings, dated April 9, 2020, Addendum No. 1, dated April 22, 2020, and Addendum No. 2, dated April 23, 2020, as noted below.
.2 Receipt of this addendum shall be acknowledged in the Bid Form.
.3 Ensure that all parties submitting bids are aware of all items included in this Addendum.
.4 REF: No amendments to Bidding Requirements in this addendum.
A3.3 PROJECT MANUAL - VOLUME II: CONTRACTING REQUIRE IN THIS ADDENDUM.MENTS and ARCHITECTURAL, & STRUCTURAL SPECIFICATIONS
.1 REF: Section 06 20 00 - Finish Carpentry .1 3.04 WOOD TREE BOXES .1 Change the title to read “WOOD TREE BOXES/SANDBOXES”. .2 Change paragraph 3.04.2 to read “Construct tree planter boxes and sandboxes…..” .2 REF: Section 09 51 00 – Acoustical Ceilings .1 2.01 ACOUSTICAL PANELS .1 Add paragraph 2.01.2 as follows: “ Acoustical Panels Type 2 (ACT-2) – Gypsum Board Tile ceilings: .1 Type: gypsum core acoustical units with sealed edges and vinyl face and back. .2 Pattern: fine textured. .4 Smoke developed class of 50 or less. .5 Noise reduction coefficient (NRC) designation of 0.10 minimum. .6 Ceiling Attentuation Class (CAC) designation of 40 minimum. .7Light Reflectance Range of 0.77 and above. .8 Edge type: square. .9 Colour: white. .10 Size: 13mm thickness, 610mm by 1220mm. .11 Shape: flat. .12 Minimum weight: 9.77kg/m2. .13 Acceptable products: .1 CertainTeed Ceilings: Protectone Vinylrock X, 1140-CRF-1 .2 CGC Interiors: Sheetrock Brand Lay-in Ceiling Tile ClimaPlus, 3270
PROJECT No.18044 MCA ADDENDUM No. 3 April 29, 2020
Page A3-2
A3.4 ARCHITECTURAL DRAWINGS
.5 REF: Drawing A101 - Site Plan Legends and Notes .1 Detail AA301- additional notes on milling of existing asphalt at play area.
.2 REF: Drawing A102 - Parking Area- Demolition, New Work and Details .1 Detail AA302 - weeping tile removed from curb detail.
.3 REF: Drawing A103 - Childcare Play Area and Details .1 Detail AA303 -tree boxes and sandbox dimensions added. .2 Detail AA304 - tree boxes and sandbox dimensions added.
.4 REF: Drawing A201 - Partial Ground Floor Plan Demolition .1 Detail AA305 - notes deleted from ‘Specific Demolition Notes’.
.5 REF: Drawing A202 - Ground Floor Plan Proposed .1 Detail AA306 - new Detail 2/A202 added re tree box section. .2 Detail AA307 - new Detail 3/A202 added re sandbox section. .3 Detail AA308 - revision to half door type.
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Addendum No. ME-2
Project Name: DDSB Winchester PS Date: April 29, 2020 Description: Child Care Renovations From: Brad Timson, P. Eng.
Luigi Conforti, P. Eng. Darnell Parris, B.Sc.
Address: 70 Watford Street Whitby, Ontario
DES Job No: 19-245
Client Contact: Shannon Kennelly, MCA
This addendum shall form an integral part of the TENDER.
Mechanical 2.1 Drawing M802
.1 Revise exhaust fan tags. All tags to follow numbered format. Refer to attached SK-M2
for Revised Exhaust Fan Schedule.
.2 Refer to attached SK-M3 for New Control Valve Schedule (for reference only; control valves to be supplied by DDSB).
.3 Titus shall be an acceptable alternate manufacturer for VAV boxes and fan power boxes. .4 Carnes shall be an acceptable alternate manufacturer for Exhaust Fans EF-34 through
EF-38.
2.2 Drawing M801 .1 Refer to attached SK-M4 for Revised Hot Water Wallfin Piping Detail.
Electrical 2.3 Drawing E201 – Refer to Revised Drawing for revisions including but not limited to:
.1 EF-A tag to be changed to EF-40, EF-C tag to be changed to EF-41.
.2 Provide new receptacle mounted above counter next to combination communication
rough-in as noted in Working Note 24 for power for future devices.
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.3 Receptacle for under-counter fridge in Infant Room to be mounted approximately 32” AFF. Coordinate with General Contractor to suit millwork.
.4 Receptacle for microwave in Infant Room to be mounted in upper cabinet space approximately 59” AFF. Coordinate with General Contractor to suit millwork.
.5 Revision to Working Note 15. Provide new access system panel complete with 120V
power. .6 Revision to Working Note 18. Provide access system monitor complete with receptacle
at high level for power. Provide phone and door release button. Exact location of all devices to be confirmed with owner. Tie into circuit for access system.
.7 Delete 120V power symbol in New Office 105. Receptacle required as per revision to
Working Note 18 as noted herein. .8 Delete exterior keypad. Viking system specified has built-in proximity card reader.
2.4 Drawing E801
.1 Access Control System shall be Viking 1275. Access system shall not be connected to
outside phone line.
.2 C.K. Systems to be removed from approved contractor to P.A. Systems and Communication System.
.3 Delete keypad symbol from legend.
2.5 Drawing E802
.1 Revised Panel “LP-1MA”:
.1 Circuit 34, revise EF-A tag to EF-40
.2 Circuit 36, revise EF-B tag to EF-39
.3 Circuit 38, revise EF-C tag to EF-41
Attachments: SK-M2 Revised Exhaust Fan Schedule (1 - 8.5x11”) SK-M3 New Control Valve Schedule Reheat Coils & Wallfin (1 - 8.5x11”) SK-M4 Revised Hot Water Wallfin Piping Detail (1 - 8.5x11”) Revised Drawing E201 New Power Layout (1 - 27.8 x 39.4”) TD: S/r: JLC
Cc: Shannon Kennelly MC Architects [email protected] Richard Kowalski MC Architects [email protected] DES Brad Timson Cc: Luigi Conforti Darnell Parris
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THE CONTRACTOR SHALL VERIFY AND BE RESPONSIBLE FOR ALL FIELDDIMENSIONS AND SHALL NOTIFY THE ARCHITECT OF ANY SITE CONDITIONSOR FIELD DIMENSIONS WHICH MAY BE AT VARIANCE WITH THE DRAWINGS.