Addendum # 6 Date: March 16, 2017 RFT 2017-08 Construction of New Building Addition to the Town of Caledon Yard 1 Garage Building Closing Date: Friday, March 17, 2017 2:00 PM This addendum refers to additions, deletions, modifications and clarifications which hereby become an integral part of the original Bid Documents and Contract Documents and shall be read in conjunction with the same. No consideration will be allowed for extras to the contract due to the Bidder not being familiar with this Addendum. Question and Responses Question 1: Response 1: Addenda 3, 4 and 5 still do not indicate eight of exterior (OUTSIDE) chain link fence. Please provide material to use, height and if a gate is required to access the enclosed area which holds heat pumps and cistern. Exterior chain link fence to comply to enclosed details OPSD972.102, OPSD972.130 and OPSD972.132. Fence to be manufactured by Acculink Fence & Wire Inc. or approved similar. Provide 6ft high fence with overhead bracing and a 4ft wide gate. Provide 4ft deep concrete foundation at post locations and ensure the post doesn t heave. Question 2: Response 2: Gauge of 7/8" corrugated metal panel by Westman still not provided. Please provide. Do we use 24, 26, 29, is it galvanized or is it colour finish? There was a typo in specification header. Specification pages #187-190 are titled Section 10 21 13.19 Plastic Toilet and Shower Compartments, and shall be replaced with enclosed Section 07 62 00 Sheet Metal Flashing and Trim. Corrugated metal fascia shall be 24ga and painted to color finish from manufacturer s standard colors. RFT 2017-08 Addendum 6 Page 1 of 2
Question 3: Response 3: Please provide material, gauge, supplier and finish for vented metal soffit at overhang location. Please confirm if we are to match adjacent Westman metal siding as indicated in question 2 above? Vented metal soffit to match Westman siding, gauge and color. Please acknowledge receipt of Addendum #6 on the Form of Offer. Irene Shepherd Buyer Finance & Infrastructure Services Department RFT 2017-08 Addendum 6 Page 2 of 2
Town of Caledon Architectural Specifications Specifications CALEDON YARD #1 Section 07 62 00 Paul Didur Architect 8820 Castlederg Side Road, Bolton, ON, L7E 0S1 Sheet Metal Flashing and Trim 1. GENERAL Summary Work of this section consists of sheet metal flashing and trim for new building s fascia and soffit. 1.1 Related Sections 1.1.1 Section 01 33 00 Submittal Procedures 1.1.2 Section 06 10 00 Rough Carpentry. 1.1.3 Section 07 52 00 SBS Modified Bituminous Membrane Roofing. 1.1.4 Section 07 92 00 Joint Sealants 1.1.5 Section 08 11 10 Metal Doors and Frames 1.1.6 Section 08 11 16 Aluminum Doors and Frames 1.1.8 Section 08 44 13 Glazed Aluminum Curtain Walls 1.1.8 Section 08 50 00 Aluminum Windows 1.1.9 Structural Specifications 1.1.10 Mechanical Specifications 1.2 References 1.2.1 The Aluminum Association Inc. (AAI):.1 AAI-Aluminum Sheet Metal Work in Building Construction-2002..2 AAI DAF45-03, Designation System for Aluminum Finishes. 1.2.2 American Society for Testing and Materials International (ASTM):.1 ASTM A 167-99 (2004), Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet and Strip..2 ASTM A 240/A 240M-07e1, Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels and for General Applications..3 ASTM A 606-04, Standard Specification for Steel, Sheet and Strip, High- Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with Improved Atmospheric Corrosion Resistance..4 ASTM A 653/A 653M-07, Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process..5 ASTM A 792/A 792M-06a, Standard Specification for Steel Sheet, 55 per cent Aluminum-Zinc Alloy-Coated by the Hot-Dip Process..6 ASTM B 32-04, Standard Specification for Solder Metal..7 ASTM B 370-03, Standard Specification for Copper Sheet and Strip for Building Construction..8 ASTM D 523-89 (1999), Standard Test Method for Specular Gloss..9 ASTM D 822-01 (2006), Standard Practice for Filtered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings. 1.2.3 Canadian Roofing Contractors Association (CRCA):.1 Roofing Specifications Manual 1997. 1.2.4 Canadian General Standards Board (CGSB):.1 CAN/CGSB-51.32-M77, Sheathing, Membrane, Breather Type..2 CAN/CGSB-93.1-M85, Sheet Aluminum Alloy, Pre-finished, Residential. 1.2.5 Canadian Standards Association (CSA International):.1 CSA A123.3-05, Asphalt Saturated Organic Roofing Felt..2 AAMA/WDMA/CSA 101/I.S.2/A440-2008, Standard/Specification for Windows, Doors and Unit Skylights..3 CSA B111-1974 (R2003), Wire Nails, Spikes and Staples. 1.2.6 Health Canada/Workplace Hazardous Materials Information System (WHMIS):.1 Material Safety Data Sheets (MSDS). 1.3 Action and Informational Submittals 1.3.1 Provide submittals in accordance with Section 01 33 00 Submittal Procedures. 1.3.2 Product Data: 1
Town of Caledon Architectural Specifications Specifications CALEDON YARD #1 Section 07 62 00 Paul Didur Architect 8820 Castlederg Side Road, Bolton, ON, L7E 0S1 Sheet Metal Flashing and Trim.1 Submit manufacturer's printed product literature for sheet metal flashing systems materials, specifications and datasheet and include product characteristics, performance criteria, physical size, finish and limitations..2 Submit two copies WHMIS MSDS Material Safety Data Sheets. 1.3.3 Samples: Submit two 100mm x 100mm samples of each type of sheet metal material, finishes and colours. 1.4 Delivery, Storage and Handling Deliver, store and handle materials in accordance with Section 01 61 00 Common Product Requirements. 2. PRODUCTS 2.1 Pre-Finished Aluminum Sheet 2.1.1 Finish: Factory applied coating to CAN/CGSB-93.1 supplemented and amended as follows:.1 Type 1..2 Class F1S..3 Colour from manufacturer's standard range to later selection by Architect..4 Specular gloss: 30 units..5 Coating thickness: not less than 22 micrometres..6 Outdoor exposure period: 2500 hours..7 Exposure period for humidity resistance: 5000 hours..8 Exposure period for salt spray resistance: 1000 hours. 2.1.2 Thickness specified for pre-finished aluminum sheet applies to base metal. 2.2 Metal Flashings, Copings and Fascias 2.2.1 Form factory pre-painted flashings, copings and fascias to profiles indicated of 0.80mm (0.032 ) thick pre-finished aluminum. 2.2.2 Fascias to be:.1 24ga, 7/8 corrugated panel by Westman Steel or approved equal. Contact Rep: Tracy Thibideau, 1-519-620-6001 ext 1530, tthibideau@westmansteel.ca.2 Factory painted to color by later selection by Architect..3 Fasteners: SD Tek screws at spacing as recommended by manufacturer..4 Header drip flashing and sill J flashing at window headers and sills..5 Provide outside J corner metal flashings in color matching the fascia.6 Provide inside J corner metal flashings in color matching the fascia 2.3 Accessories 2.3.1 Isolation coating: Alkali resistant bituminous paint. 2.3.2 Plastic cement: to CAN/CGSB 37.5. 2.3.3 Underlay for metal flashing: Dry sheathing to CAN/CGSB-51.32 or as noted on the Contract Drawings. 2.3.4 Sealants: Refer to Section 07 92 00 Joint Sealants. 2.3.5 Cleats: of same material and temper as sheet metal, minimum 50mm wide. Thickness same as sheet metal being secured. 2.3.6 Fasteners: of same material as sheet metal, to CSA B111, flat head roofing nails of length and thickness suitable for metal flashing application. 2.3.7 Washers: of same material as sheet metal, 1mm thick with rubber packings. 2.3.8 Flux: Rosin, cut hydrochloric acid or commercial preparation suitable for materials to be soldered. 2.3.9 Touch-up paint: as recommended by pre-finished material manufacturer. 2
Town of Caledon Architectural Specifications Specifications CALEDON YARD #1 Section 07 62 00 Paul Didur Architect 8820 Castlederg Side Road, Bolton, ON, L7E 0S1 Sheet Metal Flashing and Trim 2.4 Fabrication 2.4.1 Fabricate metal flashings and other sheet metal work as indicated in the Contract Drawings. 2.4.2 Fabricate aluminum flashings and other sheet aluminum work in accordance with AAI- Aluminum Sheet Metal Work in Building Construction. 2.4.3 Form pieces in 2400mm maximum lengths: Make allowance for expansion at joints. 2.4.4 Hem exposed edges on underside 12mm: Mitre and seal corners with sealant. 2.4.5 Form sections square, true and accurate to size, free from distortion and other defects detrimental to appearance or performance. 2.4.6 Apply isolation coating to metal surfaces to be embedded in concrete or mortar. 2.5 Reglets and Cap Flashings 2.5.1 Form metal cap flashing of 0.80mm (0.032 ) thick pre-finished aluminum sheet metal. Provide slotted fixing holes and steel/plastic washer fasteners. 2.6 Eavestroughs and Downpipes 2.6.1 N/A 2.7 Scuppers 2.7.1 Form scuppers from 0.80mm (0.032 ) thick pre-finished aluminum. 2.7.2 Sizes: 6 square profiles. Refer to Architectural Contract Drawings for quantities and locations. 2.7.3 Provide necessary fastenings. 2.7.4 Provide 2 thick x 13 long chain link fastened to scupper at Entrance Canopy near Door D103. 3. EXECUTION 3.1 Manufacturer s Instructions 3.1.1 Compliance: Comply with manufacturer's written recommendations, including product technical bulletins, handling, storage and installation instructions and datasheets. 3.2 Installation 3.2.1 Install sheet metal work in accordance with AAI-Aluminum Sheet Metal Work in Building Construction and as detailed. 3.2.2 Use concealed fastenings except where approved before installation. 3.2.3 Provide underlay under sheet metal:.1 Secure in place and lap joints 100mm. 3.2.4 Counterflash bituminous flashings at intersections of roof with vertical surfaces and curbs:.1 Flash joints using S-lock forming tight fit over hook strips, as detailed. 3.2.5 Lock end joints and caulk with sealant. 3.2.6 Install surface mounted reglets true and level and caulk top of reglet with sealant. 3.2.7 Insert metal flashing into reglets under cap flashing to form weather tight junction. 3.2.8 Turn top edge of flashing into recessed reglet or mortar joint minimum of 25mm. Lead wedge flashing securely into joint. 3.2.9 Caulk flashing at cap flashing with sealant. 3.2.10 Install pans, where shown around items projecting through roof membrane. 3.3 Eavestrough and Downpipes 3.3.1 N/A 3.4 Scuppers 3.4.1 Install scuppers where indicated. 3
Town of Caledon Architectural Specifications Specifications CALEDON YARD #1 Section 07 62 00 Paul Didur Architect 8820 Castlederg Side Road, Bolton, ON, L7E 0S1 Sheet Metal Flashing and Trim 3.5 Cleaning 3.5.1 Proceed in accordance with Section 01 74 11 Cleaning. 3.5.2 On completion and verification of performance of installation, remove surplus materials, excess materials, rubbish, tools and equipment. 3.5.3 Leave work areas clean, free from grease, finger marks and stains. END OF SECTION 4