02-23-2015 Council Packet - Laserfiche WebLink

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Alternate #4 — Chair Rail - $3,200: This alternate adds a wood chair rail in the Classroom and Dayroom spaces providing wall protection in these two rooms in which there is significant chair usage up against walls. This option will not only provide for a nicer aesthetic but will also reduce maintenance typically seen in these types of rooms. CNH Architects recommends approving this alternate as part of the contract award. Alternate #5 — High -Speed Coiling Doors (-$15,800): This alternate is a deduct to provide high speed coiling doors at the apparatus bays instead of four- fold doors indicated in the base bid. The four -fold door system was designed originally as the only approach for this project but the high-speed coiling doors were added as requested during the bidding process as an alternate for consideration by Council. Both doors systems provide the operational benefits that are important for a fire station, quick opening and closing allowing for faster response time and less risk of fire apparatus hitting the door in the urgency of leaving the building on a call. Slower opening sectional overhead doors are much more likely to be hit damaging the door and apparatus. While four -fold doors are easier to operate manually in the case of a power failure than high speed coiling, this is not an issue for this facility since the doors will be connected to the emergency backup generator. In our opinion, the maintenance on both door types should be very low. We have installed five four- fold doors at the Roseville Fire Station and they have been very pleased with their operation for the past 18 months of operation. We have also installed high-speed coiling doors at an auto dealership (a common use of this door type) and the record for low -maintenance operation is very good as well. CNH Architects is also aware of concerns that the Eagan Fire Department has had with the four -fold doors that were installed at their Fire Safety Center where they have had a lot of adjustments and several maintenance issues. It is hard to determine how representative the Eagan project is as the doors were specified incorrectly by that projects design firm, disassembled totally for factory painting, reassembled and then reinstalled. There are over 20 fire stations in the Twin Cities that have four -fold door installations while high-speed coiling doors have not been installed locally in any fire stations. They have however been installed in dozens of other uses locally include many auto dealerships as noted earlier as well as fire stations in other parts of the country. Aesthetically, the high-speed coiling doors differ in two ways from the four -fold doors specified in the original design. First, the window pattern in the high-speed coiling door is different as each section of door is 9" or 10" tall (depending on manufacturer) with about a 6" to 7" glass strip centered in the panel. The four -fold door designed for this project has two large glass windows in each of its four panels resulting in a different look and a higher percentage of glass providing more visibility of the apparatus inside the station. Secondly, the four -fold door opens horizontally stacking on each side of the door opening. The high-speed coiling door rolls up into a 3 foot deep by 3 foot tall box at the head of the door. This box sticks up into the window opening designed to be over the doors. If this door style is selected we would raise the sill of the windows at the three coiling doors in order to appropriately address this change. The following page shows renderings of the front of the fire station with each type of door for your review. P:\PROJECTS\2014\14045\4 - BIDDING\BID RESULTS AND RECOMMENDATIONS.DOCX