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Renovation of a municipal facility in Mobile, Alabama. Completed plans call for the renovation of a 3,200-square-foot municipal facility.
WORK DESCRIPTION Work includes furnishing all materials, labor and equipment necessary and required for the completion of the application of roofing as indicated on the construction drawings and specified herein. The scope of work includes but is not necessarily limited to the following items: Proper staging of materials. Materials shall arrive onsite in their manufacturers labeling and be kept in a watertight/temperature safe environment prior to installation as per all manufacturers' recommendations that apply. The existing roof system should be removed down to the structural lumber decking. Remove all debris and roof materials from the roof area and properly dispose of. Retaining proper cleanliness while retaining all loose debris from becoming airborne is required. Once removed the lumber deck should be assessed for adverse moisture damages. Any lumber decking with significant moisture damage should be removed and replaced with like kind and quality. Bid lumber as a unit price. Proper transportation ofthe roofing materialsfrom the staging area to the work area must be performed in a manner where no damage to the materials or Mobile County property occurs during relocation. The building's roofheight is approximately 40'feetfrom the ground at its highest point. Only personnel access is available via boom lift orladder. Itis anticipated thatmaterial transport to the roofarea will be performed from N Bayou St. Bid accordingly for overhead safety. Remove all transportable Mobile County property from below the work area to prevent damage. Employee/pedestrian access should be rerouted or provide a temporary safety enclosure if directly below or toward the perimeter of work area(s). The replacement roofsystem shall be from Johns Manville or a comparable roofing manufacturer. All relevant roofing components shall be provided from the same manufacturer and approved by said manufacturer Install poly-isocyanurate per manufacturer recommendations. Per the Alabama Building Code, Addition a minimum R-value of R-25 is required (approx. 4.5" of polyiso insulation). Ensure insulation joints (horizontal and vertical) are properly staggered a minimum of 6" to prevent thermal bridging. Design drainage/taper system to ensure positive drainage with no standing water occurrence within a 48-hour period following a rain event. Cricket length to width ratio should not exceed 3:1. Adjust flashing heights as needed to ensure 8" minimum flashing heights throughout the roof area Install fiberglass faced gypsum substrate boards per manufacturer recommendations. Ensure board joints are staggered a minimum of 6". Any boards cracked or broken during the installation process should be removed and replaced. Roof insulation and cover board should be attached to the lumber deck via mechanical fasteners. The roof assembly number and fastener spacing patterns should be provided by the roofing manufacturer to meet required wind loads. Ensure fastener shanks accommodate for additional insulation heights where insulation crickets are present. . Install new 60 mil PVC membrane per manufacturer installation recommendations. Ensure proper membrane lapping so that water flows over membrane laps rather than into them. Ensure a minimum 1 J4" wide heat weld at laps. Install pressure treated lumber nailers if/where applicable to repair/replace any damaged lumber. Nailers should be at proper height to accommodate J4" per 12" taper design. Utilize 316 stainless steel fasteners for nailer attachment. Install a self-adhered bond break between pressure treated wood if required by the manufacturer. High copper volume in the pressure treated wood could cause galvanic action (corrosion). Include unit price for lumber in bid to accommodate any unforeseen need for additional lumber. Install new Galvalume coping cleat along all parapet perimeters. A Kynar coated aluminum coping cap should then be installed/fastened atop the cleat. Ensure the new roof membrane saddles the parapet wall prior to coping cleat cap installation. Ensure proper overlap and commercial grade low modulus sealant application at coping cap joints. Apply commercial grade low modulussealant at all coping fastener penetrations Remove and replace all roof to masonry wall flashing with new 316 stainless steel counter-flashing. The reglet flashing should be cut into the masonry wall a minimum of %" and sealed with a compatible, industry standard low modulus sealant application. Ensure flashing heights are a minimum of 8" above the roof plane The four (4) verified drain conditions appeared to be corroded but in working order. Bid to install retrofit drains at all verified existing drain locations within the roof area. This will be to accommodate the new roof elevation required to meet R-Value code, as the retrofit drain should have a 12" minimum insert death. All vertical through roof penetrations including pipe vents should be flashed utilizing a properly sized PVC boot. Ensure application adheres to all manufacturer recommendations. After completion of new roof installation, a walkthrough ofthe roof shall be performed in an attempt to locate or remediate any observed deficiencies. Mobile County Health Department point of contact, Chnstopher Thomas. Project Manager al (251) 690-2985 email ffirhomasytiyohd.org. The Mobile County Health Department reserves the right to reject any and all feds end to waive any formalities in the bidding, and to be the final authority in any conflict The bidding process will follow the laws and regulations as defined by the Stele ofAlabama, in. the Code ofAlabama (1975). Title 39, Public Works Law. This contract is to remove and replace the herein specified components located at the Mobile County Health Department, 251 N Bayou 5t. Mobile, AL. It is the respqrsibility of the Contractor to investigate to the fullest extent the existing conditions and scope recommendations associated with this project priorto submitting a bid. All construction and construction actions shall comply with any and all Mobile County, local and state safety codes/requirements. Contractorshall supply, receive, off-load and maintain all materials and equipment needed to support and achieve the work described below. All equipment necessary to perform the work shall be provided by the Contractor. The use of Mobile County's equipment and personnel are not permitted. The Contractor shall protect the building components and surrounding property from any damage directly or indirectly related to the construction activities and provide all construction barriers required by this work to protect the Contractors and Mobile County's property and personnel. The Contractors bid should include all mobilization, safety, overhead equipment, materials installation equipment, personnel and profit fees to perform the work described. The contractor is required to verify all existing conditions referred to in the document and take steps necessary for compliance with the recommendations and specific drawing details.
Post-Bid
Municipal
$450,000.00
Public - County
Renovation
Documents for this project are exclusively Specifications. If Plans become available, we will add them here.
3
Trades Specified
Division 00 - Lorem Ipsum
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251 N Bayou St, Mobile, AL
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