Metro Bus Garage - Roof Replacement
Last Updated: 02/03/2020
UPDATE: April 04, 2018
Project Status: Construction
The intent of this project is to replace the existing 35 year old, 165,000 ft² EPDM roofing system with a new one that will increase the overall thermal efficiency and provide a 20 year non-prorated warranty from the roofing manufacturer. The scope of this work will consist of the following:
The existing ballasted EPDM membrane roofing system shall be removed in sections that shall minimize rain infiltration exposure to the building.
Once the existing roof has been removed, the existing steel deck, insulation and plywood shall be inspected and any deteriorated sections shall be replaced on a unit cost basis.
Additional wood blocking shall be installed as shown on the plans and specifications.
An additional 3”of Polyisocyanurate board insulation will be added over the existing insulation in order to achieve an overall R-value greater than R-20.
The existing scuppers shall be enlarged to a minimum opening height of 4”.
The existing drains shall be upgraded with cast iron strainers.
Obsolete penetrations and a roof hatch that is no longer used shall be removed and covered.
Minor repointing of existing brick masonry walls above flashing shall be performed.
Thru wall ductwork for one of the roof top units HV5) shall be reworked in order to provide a warrantable penetration.
Exhaust fans with low curbs shall be raised to an elevation that allows for a minimum height of 8” between the top of the curb and the final roof elevation.
A new 60 mil ballasted roofing system shall be installed.
City User Agency: Madison Metro
1st Advertisement of Bids: November 10, 2017 available on BidExpress
Bid Due Date: December 15, 2017
Pre-Bid Site Walk-though: Nov. 29, 2017 1:00 pm at the project site, Madison Metro Bus Garage, located at 1101 E. Washington Ave
SBE Pre-Bid Meeting: Dec. 08, 2017 1:00 pm at 1600 Emil St., Madison, WI
"All information regarding dates/times/locations are informational and should be verified with official bidding documents posted on Bid Express."
Construction Start Date: Anytime after 4/1/18
Expected Completion: May 2019