Addendum No. 3: EAST HIGH SCHOOL AUDITORIUM RENOVATIONS

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1 Rockford Board of Education 501 Seventh Street Rockford, IL May 30, 2014 Addendum No. 3: EAST HIGH SCHOOL To All Bidders: Attached are modification, clarifications and/or corrections for the Project Manual and is hereby made a part of the contract documents. Please see attached to this addendum the Project Manual(s) in your possession. Please note the receipt of this addendum on the bid form. Bidders shall review changes to all portions of this work as changes to one portion may affect the work of another. Refer all questions relative to the business aspect, Instructions to Bidders, Special Conditions, and questions concerning the technical aspect of the documents to the Executive Director of Budget and Purchasing by at stacie.scott@rps205.com. ROCKFORD BOARD OF EDUCATION By: Stacie Talbert Scott Executive Director of Budget and Purchasing

2 EAST HIGH SCHOOL LARSON & DARBY GROUP ARCHITECTS ENGINEERS INTERIORS 4949 Harrison Avenue, Suite 100 P. O. Box 5207, Rockford, IL FAX TO: ALL BIDDERS RE: ADDENDUM #3 Changes to Bidding Documents dated May 9, 2014 PROJECT: EAST HIGH SCHOOL PROJECT NO.: (RPS 205: IFB No ) DATE: May 30, 2014 Please attach this Addendum to the Project Manual and Drawings for the referenced project. Take the changes to the Project Manual and Drawings into consideration in preparing your Bid. Bidders shall make note in writing on Bid Form that this Addendum has been taken into consideration. Failure to do so may be sufficient cause to reject the Bid. LARSON & DARBY GROUP By: Christopher W. Anderson This Addendum consists of 3 page(s), plus materials itemized herein. I. REQUESTS FOR INFORMATION RESPONSES (Responses in Bold) 1. AUDITORIUM FANS SPEC B.1 LIST MECH TO SUPPLY AND INSTALL FANS DWG E1.3 LIST MECH TO SUPPLY ELECTRICAL TO INSTALL See revisions to Note 5 on Drawing E1.3 below. 2. D1.1 note #4 at two locations left and right of stage A121 in little theater call to be prepped for new foam and concrete infill.on A1.1 in the former locations of the stairs, concrete infill does not extend into. Please clarify. DELETE Note 4 at two stairs at Little Theater. 3. A1.1 the new storage wall at A122 in little theater wall type is not called out. Please confirm construction of walls that tie into existing and the top of wall elevation of new walls? Refer to General Note 15 on Drawing A A1.1 left and right of stage A121 in little theater appears new walls are to be framed at former stair locations. Correct. Or was this intended to be a header? No. Looking at elevation 1/A5.2, contractor could not find additional information clarifying this condition. Please confirm construction and provide additional clarification. Refer to details 2 and 3/A5.2 which indicates existing openings to be infilled and finished to match adjacent existing. L&D #24037 ADDENDUM #3 Page-1

3 EAST HIGH SCHOOL 5. Refer to note 10 on drawing A5.1. Can the existing trim, wainscot, and base be reused in lieu of new if it can be salvaged during removal? Provide new as indicated. 6. The substantial completion date is October 15th, I assume we will have reasonably uninterrupted access to the construction area when school resumes in the Fall. For example, there will not be classes or assemblies held in the auditorium. All classes, assemblies, etc. have been rescheduled and/or relocated to accommodate the proposed construction. 7. Detail 6/A4.1 shows no base at the rubbed concrete wall or where the new ramp slab abuts the existing east wall, but elevation 2/A5.1 appears to have a base at the rubbed wall and is unclear at the ramp slab. Please clarify the intent regarding floor base in this area of the new ramp. Provide new wood base at the base of the concrete wall and at the east wall. 8. Are the stairs leading up to A116 passage to be similar construction to section 3/A1.1? Provide cast in place formed concrete stairs and wall similar to 6/A For rooms A207 and A209, is note 15 to be removed from the RFS due to the schedule changes in addendum #1? Please clarify the intent for the existing wood base & trim at the balcony level rooms. Note #15 should remain and apply to Rooms A207, and A209. The existing base (as clarified in Addendum 1) will need to be removed to install new flooring, but is to be re used; cleaned, repaired and prepped to receive new finish: ST2 (as stated in Note 15). 10. During a site visit, I noticed fire extinguisher cabinets at each of the stair locations flanking the little theater stage. Are these to be relocated under this contract? Refer to 1/A5.1. Existing Fire Extinguisher Cabinets are to be relocated and the walls patched to match adjacent existing wall surfaces. 11. Is it the intent to completely remove the existing floor slab in the area of the new wheel chair landing in the auditorium? The sections on drawing A4.1 appear to show some of the existing concrete floor to remain. Can the new concrete landing be installed directly over the existing auditorium slab? If so, is doweling required or some other surface prep to the existing concrete floor? It is the intent to completely remove the existing floor slab. 12. Will full time supervision dedicated to east auditorium only be required? Or will part time supervision between multiple projects be acceptable? Full time supervision is required. 13. D1.1 under the demolition legend 4th hatching indicates "area of existing slab to be sawcut and removed to accommodate new level concrete landing installation." Looking at A1.1 landing area references 1 4A4.1 for cross section view. Section views 1 4A4.1 it could be interpreted that new concrete landing is poured over the existing concrete slab. In addition, addendum #1 revised note #4 A1.1 to read "new concrete landing at wall to slab intersection, inspect slab dowels. Remove existing dowels if deteriorated beyond 20% or if loose. If needed, replace with #4 12" (1' 6" x 1' 6" on center. Drill into existing concrete wall and epoxy into place. At slab areas that span tunnel, add 12" each way, min 1 ½" clear from bottom of slab." Based on demo legend and revised note #4 in addendum #1, contractor assumes intention is to remove entire section of existing floor for new level concrete landing and not pour over existing floor slab, please confirm. It is the intent to completely remove the existing floor slab. 14. Any information on locations, sizes of the existing tunnels under auditorium floor would be helpful. Can any additional information be provided? Refer to ATTACHED (8 ½ x 11 ) sheet AD 03/A In Addendum 1, page 3, it states to delete any reference to AWP 2 on the drawings, not using. Does that mean we are completely eliminating those acoustic wall panels or that they are becoming AWP 1. It s not clear. My interpretation is that we are not installing any acoustic wall panels in those areas. Please confirm. See below changes to Drawing A2.1. L&D #24037 ADDENDUM #3 Page-2

4 EAST HIGH SCHOOL II. ADDITIONS OR CHANGES TO THE DRAWINGS DRAWING A2.1 AWP1: Will refer to acoustical panels for the insets on East and West walls. ADD to the description: Wall Technology Wedge Wall Panel System custom sizes Note 9 on drawing A5.1 should then refer to AWP1. AWP2: Basis of Design or Owner Approved Equal: Conwed Designscape: Respond ACT Wall Panels: High Impact, Z Clip Mount, Progressive from Bottom Up. A. Thickness: Sound Absorbing Wall Panel: Manufacturer's standard panel construction consisting of facing material completely adhered to the face of the panel and returned to the back for a full finished edge. All corners are fully tailored. 1. Mounting: Z Clips 2. Core: Dimensionally stable 6 7 PCF glass high impact fiberboard.. 3. Edge Construction: Resin hardened. 4. Edge Profile: Square 5. Corner Detail in Elevation: Refer to drawings. 6. Reveals between Panels: Refer to drawings. 7. Facing Material: Maharam: Sharkskin 2 #901650; Color # Nominal Thickness: 1 1/2 9. Acoustical Performance: Sound absorption NRC level of according to ASTM C 423 for Type A mounting according to ASTM E Sizes: refer to drawings. DRAWING A Refer to ATTACHED (8 ½ x 11 ) sheet AD 03/A5.1a. DRAWING M Refer to ATTACHED (8 ½ x 11 ) sheet AD 03/M1.1b. DRAWING E ADD exhaust fan PRE 3 above roof of Storage Room A117. Provide wall mounted pilot light switch near door in this room to control this fan. DRAWING E ADD fan PRE 3 in Panel schedule ARP1 circuit 25. END OF ADDENDUM #3 L&D #24037 ADDENDUM #3 Page-3

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