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02/09/2010 Regular Meeting i Architectural Review Board Meeting Minutes MAR 3 2010 February 9, 2010 +a GRC� H CI.mR Z) OFFICE A. Call to Order Vice -Chair HACKER called the meeting to order at 7 p.m. B. Roll Call Board Members present were Peter Malley (PM), Brent Watkins (BW), Ray Nordgulen (RN), and Gregg Hacker (GH). A quorum was established. Borough staff present were Engineering and Facilities Department Director Woody Koning (WK), Project Manager Ken Smith (KS), and Projects Assistant Jessica Wolfe (JW). Jensen Yorba Lott, Inc.(JYL) representative Tony Yorba (TY) was also present. HACKER moved to excuse Board member Cliff Ford and Jerrol Friend due to previous commitments. VOICE VOTE CARRIED UNANIMOUSLY Projects Assistant Wolfe reported that Board member Scott Bonney wished to telephonically attend the meeting. In an email, the Borough Clerk instructed the Board to discuss and decide whether meeting attendance would be allowed via teleconference. C. Approval of Agenda WATKINS moved to amend the agenda in order to discuss meeting attendance via teleconference. VOICE VOTE CARRIED UNANIMOUSLY. WATKINS moved to approve the agenda as amended. ROLL CALL VOTE CARRIED UNANIMOUSLY. WATKINS moved to allow Board members to attend meetings telephonically as long as there was a quorum physically present at the meetings. Projects Assistant Wolfe connected Mr. Bonney via teleconference at 7:14 p.m. VOICE VOTE CARRIED UNANIMOUSLY. ARB Minutes 100209 Auditorium Roof 95 %.docx Page 1 of 5 1 D. Approval of Minutes MALLEY moved to approve ARB meeting minutes of May 4, 2009, as submitted. ROLL CALL VOTE CARRIED UNANIMOUSLY. E. Election of Officers NORDGULEN moved to nominate Board member Hacker as Chairperson and Board member Watkins as Vice Chairperson. ROLL CALL VOTE CARRIED UNANIMOUSLY. F. Approval of Auditorium Roof Drawings 95% Board member Hacker turned the meeting over to Mr. Yorba. General Comments: 1. Add a site plan with the contractor staging the area information and the roof plan dimensions plan. 2. Change the name of the project to Auditorium Roof Replacement. 3. All fasteners were to be stainless steel. Exterior exposed fasteners would be painted to match the existing, adjacent surfaces and would include EPDM washers. 4. Fasteners and washers would be replaced where wall panels were removed and reinstalled. Fasteners would be replaced with a fastener one size larger than the original fastener. 5. At concealed locations a polyurethane sealant such as Sikaflex would be specified, rather than the polybutyl sealant currently shown. 6. Existing ladders would be removed, sandblasted, and painted using an electro plating system currently offered locally in Kodiak (Kodiak Metals, Jerry Christiansen). However, galvanized ladder specifications would be left in the drawings and bidders would be allowed to offer new galvanized ladders as a substitution. 7. The existing roof access hatches and smoke hatches would remain in place and would be repainted using the following methodology: wirebrush to near bright metal, coat with "Ospho" phosphoric acid rust treatment, primecoat with metal primer, and then two coats of finish. In addition, a new edge flashing would be installed as well as new neoprene foam seals between the hatch doors and the existing curbs. 8. JYL wrote the specification describing the required roof R value, to allow either expanded polystyrene (beadboard), extruded polystyrene (blueboard), or polyisocyanurate (polyiso). This would allow the most cost effective insulation type to be proposed by each bidder. A question was ARB Minutes 100209 Auditorium Roof 95 %.docx Page 2 of 5 raised whether the beadboard insulation could absorb water in the future due to vapor transmission through the vapor barrier and reduce R value. At this point, it was believed that as long as a proper vapor barrier was achieved, the risk of water vapor build up would be minimal. Literature would be reviewed for any reports of this being an issue for this type of roof assembly. 9. The existing roof insulation was about R -33. It was desired to raise the R value to at least R -40. The parapets would possibly need to be raised at portions of the existing roofline in order to accommodate deeper insulation. There was some concern about changing the roof profile as a result of the higher roof parapet, but it was agreed that the impact on roof appearance was minor compared to the advantage of higher R value. 10. Walk mats would be shown below all roof ladders. The walkmats would be PVC welded to the membrane below. 11. The sealants specified were Silicone (for exposed locations) and Polybutyl for concealed locations. At the request of the ARB, the sealants would be changed from Polybutyl to Polyurethane, such as Sikaflex. 12. The seismic joint would be modified to include a vapor barrier and insulation within the joint space. 13. The scupper detail would be modified so that the PVC membrane was properly terminated to either a mechanical termination or a PVC clad flashing. This could result in the metal scupper flashing being replaced. Detail Comments Al201 Seismic joint locations would be more clearly defined. All seismic joints would be removed and replaced from end to end in the work area, including vertical joints on walls to remain. Al201 Windows in the clerestory above the main lobby area would be replaced with aluminum framed windows to match the existing units. Windows would be installed on the north and east side of the lobby. The windows were shown on sheet A1304 and A1305. Detail 6/A1801, it was noted on existing conditions that the bottom of the metal wall panels could be less than 12 inches above the finish roof surface. The bottom of the wall panels would be cut to ensure the panel base was at least 12 inches above the roof surface. Detail 3/A1801 showed the existing roof drain bowl and surrounding plywood framed sump without insulation. The roof drains on site were checked and it was noted that the drain bowl was insulated, but the plywood was not. The detail would be modified to provide insulation on the roof side to mitigate any potential condensation. ARB Minutes 100209 Auditorium Roof 95 %.docx Page 3 of 5 Detail 4/A1802 A note to direct the contractor to remove existing sealant at wall penetrations for ladder supports and replace it with silicone sealant would be added. Detail 5,6/A801 Sealant would be applied between the metal flashing and the new PVC membrane. I Detail 2/A802 The termination bar location would be raised to just below the existing metal wall panel. Detail 3/A802 The depth of the Polyisocyanurate insulation would be verified to match the long term R value of other insulations. Detail 6/A802 An "eternabond" tape joint between the existing window that occurs in one location over this detail would be provided. This would allow modification of the existing window the High School renovation without disrupting the new roof. Detail 5/A802 The void on the high side of the seismic joint would be eliminated in the detail. An isometric detail describing how roof membrane was to terminate at walls where parapets occur would be added. Specifications Borough staff would review the draft division 0 sections, including liquidated damages, insurance, bond amounts, bid advertisement dates, and dates of substantial completion. 01100.1.6A: The general use of premises statement would be modified to reflect the use of the building by Owner and the need for unfettered access. There would be a mandatory pre -bid conference scheduled. 07542.1.4.C: There would be consultation with the local building official addressing the use of 2009 IBC and the model code that was enforced locally, to make sure that no changes to wind design criteria or methods had taken place. WATKINS moved to accept the 95% drawings as noted. ROLL CALL VOTE ON MOTION CARRIED UNANIMOUSLY ARB Minutes 100209 Auditorium Roof 95 %.docx Page 4 of 5 G. Public Comments Engineering and Facilities Department Director Koning and Project Manager Smith thanked the ARB for its participation. H. Board Comments Board member Watkins thanked everyone for their participation. I. Adjournment WATKINS moved to adjourn the meeting. VOICE VOTE ON MOTION CARRIED UNANIMOUSLY. The meeting was adjourned at 9:08 p.m. Respectfully submitted: A-)a Date: Jessicoolfe, Projects Assista KIB E gi ering /Facilitie Dep ent Date: l Greg Architect W? 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