BIDDING & CONTRACT DOCUMENTS Document Addendum #1

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1 BIDDING & CONTRACT DOCUMENTS Document Addendum #1 August 29, 2013 WALTON & ASSOCIATES ARCHITECTS, P.C South Sixth Street Springfield, Illinois TO: PROSPECTIVE BIDDERS SUBJECT: ADDENDUM NO. 1 TO THE BIDDING DOCUMENTS FOR TECHNOLOGY CENTER ADDITION Danville Area Community College Danville, Illinois This Addendum forms a part of the bidding and contract documents and modifies the original bidding documents dated August 12, 2013 contract documents. Acknowledge receipt of the Addendum in space provided on Bid Form. FAILURE TO DO SO MAY SUBJECT BIDDERS TO DISQUALIFICATION. ****************************************************************************************************************** * SPECIFICATIONS 1. Re: Document Advertisement for Bid A. TIME AND PLACE OF BID SUBMITTAL The bid date has been changed. Danville Area Community College will receive bids at 2:00 PM on Thursday, September 12, Re: Section Project Summary A. For clarification, Certified Payrolls are to be submitted with each month s Pay Request. B. Paragraph 1.11 Contractor Use of Premises Add Subparagraph O. O. The General Contractor will be responsible for erecting and maintaining a safety fence around the construction site. 3. Re: Section Excavating, Backfilling and Compacting for Utilities A. Paragraph 1.01 Work Includes Delete Subparagraph 1.a through f. Add the following: A. Base Bid 1. Plumbing and Mechanical Contractors provide: a. Excavate and backfill for all site utilities

2 2. Cap off and seal discontinued utility services and remove portions of lines within excavated areas. 3. Shore and brace excavations. 4. Place and compact fills to rough grade elevations. 5. Dewater excavations. B. Paragraph 1.02 Related Work 1. Reference related Plumbing and HVAC items in this Addendum. 4. Re: Section Surface Applied Tactile Warning Surfaces A. Delete this section. B. Add Section Cast-in-Place Detectable/Tactile Warning Surfaces. Attached is this section. 5. Re: Section Lawns and Grasses A. Paragraph 1.01 Work Includes Add General Contractor to provide the items noted. B. The Plumbing and Mechanical Contractor will be responsible for backfilling and rough grading the excavated site utilities. The General Contractor will be responsible for final grading and seeding as specified in the Section. 6. Re: Section Air and Moisture Barrier A. Paragraph 1.01 Work Includes Add the following to sub paragraph A-1: General Contractor to provide: C. Visqueen vapor barrier on interior of exterior studs. B. Paragraph 2.01, Add the following: B. Visqueen vapor barrier, minimum 6 mil thickness. 7. Re: Section Vented/Nailable Roof Insulation A. Paragraph 2.01 Manufacturer Add the following acceptable manufacturer: D. Cornell Corp.; Vent top Thermal Cal Re: Section Flashing and Sheet Metal A. Paragraph 2.03 Roof Edging Add the following manufacturer 3. Custom Fascia by Metal-Era. 9. Re: Section Snow Guards A. Paragraph 2.01 Manufacturer Add the following acceptable manufacturer: Sno Gem, Inc.; Half Carat with Tab. 10. Re: Section Aluminum Clad Wood Windows A. Paragraph 2.01 Manufactured Units Add the following manufacturer as an equal. B. Kolbe & Kolbe Millwork Co

3 C. Anderson Windows E-Series B. Paragraph 2.02 Frame Description 1. Delete reference to types of wood and add Ponderosa Pine, Factory prime and painted. 2. The glass can be direct set in the fixed windows. C. Paragraph 2.07 Accessories and Trim Delete sub-paragraph B-1, Profiles. Profile to be as indicated on the drawings. 11. Re: Section Gypsum Board Systems A. Paragraph 2.02 Add the following as an acceptable manufacturer: 6d USG Secorock Exterior Glass Mat Sheathing. 12. Re: Section Resilient Flooring A. Paragraph 1.01 Work Includes Revise Sub paragraph A1a to read: a. Luxury Vinyl Tile B. Paragraph 2.01 Acceptable Products Revise to read: A. Tarkett Essential 30 B. Armstrong Natural Creations Earthcuts C. Congoleum Corp Ovations D. Mannington Commercial Adura 13. Re: Section Carpet Tile A. Paragraph 2.01 Carpet Manufacturer Item A-3 Shaws Carpet. Correct the name to Borneo. 14. Re: Section Toilet and Bath Accessories A. Paragraph 3.05 Schedule Delete sub paragraph D and ADD the following: D. Surface Mount Hand Dryer Push Button 110V-120V; 15 amp; white. 1. American Specialties Model Bradley Model World Dryer Model DA Re: Document Facility Water Distribution Piping a. Paragraph 3.1-A.: Replace with the following: A. Excavating, trenching, warning tape and backfilling are specified in Section (EXCAVATING, BACKFILLING AND COMPACTION FOR UTILITIES). The Plumbing Contractor is responsible for backfilling and grading. The final grading and seeding areas will be by the General Contractor

4 16. Re: Document Sanitary Waste and Vent Piping a. Paragraph 3.1-A.: Replace with the following: A. Excavating, trenching, warning tape and backfilling are specified in Section (EXCAVATING, BACKFILLING AND COMPACTION FOR UTILITIES). The Plumbing Contractor is responsible for backfilling and grading. The final grading and seeding areas will be by the General Contractor. 17. Re: Document Ground-Loop Heat-Pump Piping a. Paragraph 3.1-A.: Replace with the following: A. Excavating, trenching, warning tape and backfilling are specified in Section (EXCAVATING, BACKFILLING AND COMPACTION FOR UTILITIES). The HVAC Contractor is responsible for backfilling and grading. The final grading and seeding areas will be by the General Contractor. 18. Re: Document Raceway and Boxes For Electrical Systems a. Paragraph 3.1-B.12.: Add as follows: 12. Conduit below concrete floor slab shall be schedule 40 PVC with rigid elbows and subs through floor slabs. 19. Re: Document Communications Equipment and Cabling a. Paragraph 1.8-B.4.: Add as follows: 4. Additional telecommunications installers that are registered by BICSI and are RCDD certified shall be acceptable. 20. Re: Document Storm Utility Drainage Piping a. Paragraph 3.1-A.: Replace with the following: A. Excavating, trenching, warning tape and backfilling are specified in Section (EXCAVATING, BACKFILLING AND COMPACTION FOR UTILITIES). The Plumbing Contractor is responsible for backfilling and grading. The final grading and seeding areas will be by the General Contractor. DRAWINGS 22. Re: Sheet C-1 Site Plan Demolition A. Reference Note 5, There are 3 trees to be removed in place of the one noted. See the attached drawing X Re: Sheet A-6 Building Sections A. See revised detail 5 on attached sketch X Re: Sheet A-7 Wall Section A. Revise detail 3/A7 per attached drawing X Re: Sheet C-2 Site Plan-New Work A. Revise details 3, 4, 5 and The base is to be 8 compacted, IDOT CA6 crushed stone. 2. The asphalt surface is to be a. 2 Binder Course b. 2 Surface Course

5 26. Re: Sheet S1.1 Foundation Plan A. For clarification, See note regarding sawn joints and keyed joints. Contractor is to provide drawing locating the locations of the joints. See typical construction and control joint details on Sheet S Re: Sheet S3.1 Foundation Details Detail 1/S3.1 Typical Classroom Wall Section A. The grade beam is to be GB-3, 18 x Re: Sheet P2 Foundation Plan Plumbing a. Existing Sewage Ejector Basin i. Clarification to sanitary routing to existing sewage ejector basin as shown on attached 8-1/2" x 11" drawing, P2a. 29. Re: Sheet P3 Floor Plan - Plumbing a. Training Rooms 109 and 114 i. Add note near fixtures S-1, Provide TMV-1 below sink. Typical of two (2) S-1. ii. Add 4" FCO designation to FCO near drain D3-4" in Training Room 109. b. Storage Room 111 i. Add FCO and designation 4" FCO in Storage room Re: Sheet P4 Plumbing Details a. Floor cleanout in concrete slab. i. Add the following note: Acceptable Models: Wade W-6000, Josam 56000, Smith 4021, Zurn Z b. System Riser with RPZ backflow preventer i. Provide a Double Check Detector Assembly including a bypass backflow assembly and bypass meter as required by the local water utility company. 31. Re: Sheet P5 Plumbing Details a. New Connection to existing Duplex/Simplex Vertical Sewage Ejector i. Delete detail. Replace with the attached 8-1/2" x 11" drawing, P5a. b. Yard Cleanout i. Add the following note: Acceptable Models: Wade W-6000-Z, Josam 56050, Smith 4246, Zurn Z Re: Sheet E2 Electrical Plan Power and Systems a. Schedule for Existing Distribution Panel PTCA Change frame and trip for breakers to new panels TCTR1P and TCTR2P to 100 A. b. Floor Plan and One Line Diagram Change panels TCTR1P and TCTR2P to 100 A and change feeders for these panels to 3 #3 and 1 #6 ground in 1-1/2 conduit. 33. Re: Sheet E4 Panel Schedules a. Panel Schedules TCTR1P and TCTR2P Change main bus rating and main breaker rating to 100 A. b. All New Panels Provide feed through lugs on main bus

6 THIS ADDENDUM CHANGES THE BID DATE. This Addendum consists of six pages (6). Attachments: Section Cast-in-Place Detectable Warning Surfaces Sketch X-1 Tree Removal Sketch X-2 Revised Wall Section C Sketch X-3 Revised Detail 5/A6 Sketch P-2a Sewage Ejector Basin Sketch P-5a Sewage Ejector Connection WALTON & ASSOCIATES ARCHITECTS, P.C South Sixth Street Springfield, IL Ph: (217) Fax: (217) don@thewaltongroup.com

7 DIVISION 2 SITE WORK Section Cast-in-Place Detectable/Tactile Warning Surfaces 1. GENERAL 1.01 WORK INCLUDES A. Base Bid: 1. General Contractor provide: a. Install Cast-in-Place Detectable/Tactile Warning 1.02 RELATED WORK A. Specified Elsewhere: Warranties and Bonds Portland Cement Concrete Paving 1.03 SUBMITTALS A. Product Data: Submit manufacturer s literature describing products, installation procedures and routing maintenance. B. Submit two (2) tile samples minimum 6 x 6 of the kind proposed for use. C. Material Test Reports: Submit complete test reports from qualified accredited independent testing laboratories to qualify that materials proposed for use are in compliance with requirements and meet or exceed the properties indicated on the specifications. All tests shall be conducted on a Cast-in-Place Detectable/Tactile Warning Surface Tile system as certified by a qualified independent testing laboratory and be current within a 24 month period. D. Maintenance Instructions: Submit copies of manufacturer s specified installation and maintenance practices for each type of Detectable Warning Surface Tile and accessory as required QUALITY ASSURANCE A. Provide Cast-in-Place Detectable/Tactile Warning Surface Tiles and accessories as produced by a single manufacturer with a minimum of three (3) years experience in the manufacturing of Cast-in-Place Detectable/Tactile Warning Surface Tiles. B. Installer s Qualifications: Engage an experienced Installer certified in writing by Cast-in-Place Detectable/Tactile Warning Surface Tile manufacturer as qualified for installation, who has successfully completed installations similar in material, design, and extent to that indicated for the Project. C. Americans with Disabilities Act (ADA): Provide Cast-in-Place Detectable/Tactile Warning Surface Tiles which comply with the detectable warnings on walking surfaces section of the Americans with Disabilities Act (Title III Regulations, 28 CFR Part 36 ADA STANDARDS FOR ACCESSIBLE DESIGN, Appendix A, Section DETECTABLE WARNINGS ON WALKING SURFACES). D. Cast-in-Place Tactile Warning Surface Tiles (CIP) shall meet or exceed the following test criteria using the most current test methods: 1. Compressive Strength: 28,000 psi minimum, when tested in accordance with ASTM D Flexural Strength: 29,000 psi minimum, when tested in accordance with ASTM D Water Absorption: Not to exceed 0.10%, when tested in accordance with ASTM D Slip Resistance: 1.00 minimum wet/dry static coefficient of friction when tested in accordance with ASTM C Flame Spread: 25 maximum, when tested in accordance with ASTM E Salt and Spray Performance of Tactile Warning Surface: No deterioration or other defects after 200 hours of exposure, when tested in accordance with ASTM-B ADDENDUM #1

8 7. Chemical Stain Resistance: No reaction to 1% hydrochloric acid, motor oil, calcium chloride, gum, soap solution, bleach, and antifreeze, when tested in accordance with ASTM D Abrasion Resistance: 500 minimum, when tested in accordance with ASTM C Accelerated Weathering of Tactile Warning Surface when tested by ASTM-G155 or ASTM G151 shall exhibit the following result: E<5.0 at 2,000 hours minimum exposure. 10. Tensile Strength: 11,000 psi minimum, when tested in accordance with ASTM D AASHTO-H2O Load Bearing Test: No Damage at 16,000# loading. 12. Freeze/Thaw/Heat: No deterioration when tested in accordance with ASTM C DELIVERY, STORAGE AND HANDLING A. Cast-in-Place Detectable/Tactile Warning Surface Tiles shall be suitably packaged or crated to prevent damage in shipment of handling. Finished surfaces shall be protected by sturdy wrappings and tile type shall be identified by part number. B. Cast-in-Place Detectable/Tactile Warning Surface Tiles shall be delivered to location at building site for storage prior to installation SITE CONDITIONS A. Environmental Conditions and Protection: Maintain minimum temperature of 40 F in spaces to receive Cast-in-Place Detectable/Tactile Warning Surface Tiles for at least 24 hours prior to installation, during installation, and for not less than 24 hours after installation. B. The use of water for work, cleaning or dust control, etc. shall be contained and controlled and shall not be allowed to come into contact with the general public. Provide barricades or screens to protect the general public WARRANTY A. Cast-in-Place Detectable/Tactile Warning Surface Tiles shall be warranted in writing for a period of five (5) years from date of substantial completion. The guarantee includes defective work, breakage, deformation, fading and loosening of tiles. 2.0 PRODUCTS 2.01 MAUFACTURERS A. Armor-Tile by Engineered Plastics, Inc. B. ADA Solutions by Detectable Warning Systems MATERIALS A. Composition: CIP Tiles shall be manufactured using a matte finish exterior grade homogeneous (uniform color throughout thickness of product) glass and carbon reinforced polyester based Sheet Molding Compound (SMC) composite material. Truncated domes must contain fiberglass reinforcement within the truncated dome for superior structural integrity and impact resistance. A matte finish will be required on the Tactile Warning Surface for superior slip resistance performance superior to that offered by a gloss finish. Use of tactile Warning Surface Products employing coatings or featuring layers of material with different composition, performance, or color properties is expressly prohibited under this Section. B. Color: Color shall be homogeneous throughout CIP Tile. 1. Brick Red (R) per Federal Standard 595B Table IV, Color No C. Domes: Square grid pattern of raised truncated domes of 0.2 nominal height, base diameter of 0.9 and top diameter of The Federal Code of Regulations permits a truncated dome spacing range of For superior wheelchair, walked and shopping cart mobility, the preferred truncated dome spacing shall have a center-to-center (horizontally and vertically) spacing of 2.35, measured between the most adjacent domes on square grid ADDENDUM #1

9 D. Configuration: CIP Tile sizes shall be as indicated on the Contract Drawings. For superior load bearing capacity, CIP Tile shall feature internal embedment ribs at 3 (nominal) on center maximum. The field area shall consist of a non-slip textured surface with a minimum static coefficient of friction of 0.80, wet and dry. At a minimum, CIP Tile thickness shall measure 0.20 (nominal). 1. The field area shall consist of a non-slip textured surface with a minimum static coefficient of friction of 0.80, wet and dry. E. Truncated Dome Surface of Composite CIP Tile shall be protected with factory installed plastic sheeting for cleanliness during the installation process. Basic Installation Guidelines shall be printed on the plastic sheeting in both English and Spanish for customer convenience. F. Dimensions: Cast-in-Place Tactile Warning Surface Tiles shall be held within the following dimensions and tolerances. 1. Length and Width: 1.67 Dome Spacing [36 x60 ]. 3.0 EXECUTION 3.01 PREPARATION A. During all concrete pouring and CIP Tile Installation procedures, ensure adequate safety guidelines are in place and that they are in accordance with the applicable industry and government standards. B. The physical characteristics of the concrete shall be consistent with the Contract Specifications while maintaining a slump range of 4-7 to permit solid placement of the CIP Tile. An overly wet mix will cause the CIP Tile to float. Under these conditions suitable weights such as 2 concrete blocks or sandbags (25 pounds) shall be placed on each CIP Tile. C. The concrete shall be poured and finished, true and smooth to the required dimensions and slope prior to CIP Tile placement INSTALLATION A. Contractor will not be allowed to install Tactile Warning Surface Tiles until all submittals have been reviewed and approved by the Engineer. B. CIP Tile shall be installed per manufacturer s instructions. C. To the maximum extent possible, the CIP Tiles shall be oriented such that the rows of in-line truncated domes are parallel with the direction of the ramp. When multiple CIP Tiles regardless of size are used, the truncated domes shall be aligned between the tactile warning surface Tiles and throughout the entire tactile warning surface installation. D. In accordance with the Proposed Accessibility Guidelines for Pedestrian Facilities in the Public Rights of Way (7/23/11, Access Board): Sections ), Tactile Warning Surface Tile shall be located relative to the curb line as shown within Sections of the Guidelines. E. CIP Tiles shall be tamped or vibrated into the fresh concrete to ensure that there are no voids or air pockets, and the field level of the CIP Tile is flush to the adjacent concrete surface or as the Drawings indicate to permit proper water drainage and eliminate tripping hazards between adjacent finishes, F. Cutting and Setting of CIP Tiles shall be cut into size and configuration indicated on the Drawings using a 60 tooth carbide blade on a table saw or equivalent cutting device. Minimize any cantilever effect (to the maximum extent practicable) when cutting between successive embedment ribs as concrete will tend to flow up and over the CIP Tiles. The top of the body of the CIP Tiles shall be fully seated and flush with the adjacent concrete substrate. For specific ADDENDUM #1

10 instructions for cutting and setting refer to Tactile Warning Surface manufacturer s written instructions CLEANING AND PROTECTING A. Protect CIP Tiles against damage during construction period to comply with CIP Tile manufacturer s specification. B. During and after the CIP Tiles installation and the concrete curing stage, it is imperative that there are no walking, leaning or external forces placed on the CIP Tiles to rock the CIP Tile, causing a void between the underside of the CIP Tile and the concrete. C. Remove Protective Plastic Sheeting from CIP Tile within 24 hours of installation of the CIP Tile. Particularly under hot weather conditions (80 degrees or higher), plastic sheeting will adhere strongly (resulting in difficult removal of same) to Tactile Warning Surface Tile when not removed quickly. D. If requested by the Project Manager, clean CIP Tiles not more than four (4) days prior to date scheduled for inspection intended to establish date of substantial completion in each area of project. Clean CIP Tile by method specified by Tactile Warning Surface Products manufacturer. End ADDENDUM #1

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