7606 - Scope of Work
Materials Management Department
901-B Texas Street
Denton, Texas 76209
Scope of Work for
Roofing, Gutters, and Downspouts
Installation, Maintenance, and Repair Services
Request for Proposal (RFP)
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Name of Project: Roofing, Gutters, and Downspouts – Installation, Maintenance, and
Repair Services
Purpose:
The City of Denton (“City”) seeks to establish an annual contract with a qualified, experienced
Vendor(s) for Roofing, Gutters, and Downspouts for Installation, Maintenance, and Repair
Services. The City intends to award a three (3) year contract with two (2) additional one (1) year
options. All services shall be performed within the City limits at several different locations.
Proposers may bid on one, more than one, or all of the following types of roof repair and
replacement related services.
1. Gutter installation, repair, and replacement, including downspouts and leaders;
2. Fascia and soffit installation, repair and replacement; and/or
3. Roof repair and replacement
SCOPE OF SERVICES:
Vendor(s) shall provide all necessary roofing, gutters, and downspouts installation,
maintenance, and repair services as needed by the City including, but not limited to:
Gutters, including Downspouts and Leaders
Remove existing gutters, downspouts and leaders. Replace gutters with new materials
meeting or exceeding the current building codes, using the longest length possible.
Repair or replace and install gutters and down-spouts with seamless commercial grade
material to match existing gutters. Items that are to be replaced will be done with prior
approval before removal.
All gutters shall be installed using current type or manufacturer recommended hangers
meeting current building codes.
All end caps to be color matching stainless riveted.
Miters should be of quality to hold configuration of gutter, sealed, and pop-riveted.
Install heat tape in all gutters and downspouts. Existing soffit outlets can be used for a
power source providing that they are adequately secured.
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Leaders to be matching material or meeting current building codes, no pike, ferrules, or
straps allowed.
Install new gutter leader tubes and screens on gutter repairs and new installation.
Gutters and leaders to be of matching baked finish or approved City Color.
Gutters shall be installed to allow for an installation and exposure to match existing
gutters or to match current building codes. Cut back shingles or build out fascia as
required by field condition.
Install edging with kick on all lower edges and where new gutters will be installed. Cut
back roof if necessary.
The contractor shall remove and dispose of all gutters and leaders and same shall
become property of contractor unless otherwise specified.
The use of steel nails is prohibited.
Installation of straps should be as per manufacturer’s recommendation and must meet or
exceed current building code requirement.
Presence of the City’s representative at the project site in no way relieves the contractor
of his contractual responsibility to provide proper on-site supervision and to complete
and said project in accordance with the standard principals and sound roofing practices.
Fascia and Soffit
Remove and replace all damaged soffit and fascia to include ledger board cover. Inspect
for any rotten wood, replace as needed. The appointed City designee shall be contacted
prior to large quantities of rotten wood replacement.
Prior to installation of new soffit and fascia materials, existing materials must be primed
and painted to treat and seal existing rust on existing materials.
Replace any rotted soffit fascia boards that are to rotted to securely hold fasteners.
Form fit and install coil stock material to wrap all fascia.
Install vented soffit panels to match existing materials to enclose all soffits and maintain
adequate ventilation through soffits. New installations will require approval of soffit
panels.
Enclose all soffit with vented or solid soffit material and enclose all fascia boards with ne
product with a baked finish to match existing. Color to be determined and preapproved
by City. Soffit material must match existing materials to the satisfaction of the City and
meet or exceed current building code.
Molding and trim on soffit to fit as tight as required by the siding manufacturer.
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All existing soffit and fascia vents must be maintained.
Presence of the City’s representative at the project site in no way relieves the contractor
of his contractual responsibility to provide proper on-site supervision and to complete
and said project in accordance with the standard principals and sound roofing practices.
Roof Installation, Repair and Replacement
Roof system shall comply with the initial and aged reflectivity required by the U.S.
Federal Government’s Energy Star program.
Roof system shall meet the reflectivity and emissivity criteria to qualify for one point
under the LEED credit category, Credit 7.2 Landscape & Exterior Design to Reduce
Heat Island – Roof
Roof will be a UL Class A Roof.
Roof will have 1-90 Uplift Rating.
Where steep asphalt is specified, Type III or Type IV shall be used. Kettle temperature
shall not exceed 500 degrees Fahrenheit. Application temperature shall not be less than
350 degrees Fahrenheit.
Where equiviscus temperature (EVT) and final blowing temperatures are supplied by the
asphalt manufacturer, bitumen shall be heated to provide EVT at point of application and
so as not to exceed blowing temperature for over (4) hours of operations. (EVT is an
express temperature at +25%).
Fire extinguishers shall be provided by the Contractor and must be on site and
operational at all times.
Existing roof membrane shall be scraped to smooth surface condition to a minimum of
twelve inches (12”) back from termination day’s work.
New roof membrane shall overlap smooth twelve inch (12”) area of existing roof and be
physically bonded and totally sealed water tight to this area.
Such additional repairs as are deemed necessary to provide a water tight seal shall be
affected.
Materials used must be “like materials” of the roofing membrane in need of repair and
shall be of compatible composition.
Roof cement must conform to a flashing grade cement, Bradco roof cement or approved
equal.
Membrane must be asphalt saturated cotton membrane or fiberglass-based sheet
material.
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Steep asphalt shall be Steep Type III or IV.
Liquid cold asphalt “adhesives” shall not be used.
Single ply systems must be repaired with like materials per manufacturer’s specifications
and requirements.
Proper tie-in to existing roof membrane must be adhered to.
Materials containing asbestos shall not be used. It shall be the responsibility of the
Contractor to assure against any asbestos violations. In the event of any asbestos
detection or suspicion, the Contractor shall immediately cease work, secure the area
and contact the City. The City will be responsible for any required abatement.
Coal Tar Elastomeric Membrane (CTEM) certification required for roof installation and
repairs.
Where not expressly stated otherwise, work shall additionally conform to the following
documents:
o American Society of Testing Materials (ASTM)
C 177 Testing Method for Steady-State Heat Flux Measurement and
Thermal Transmission Properties by Means of the Guarded-Hot-Plate
Apparatus
C 209 Methods of Testing Insulating Board (Cellulosic Fiber), Structural
and Decorative
C 728 Perlite Thermal Insulation Board
D 41 Asphalt Primer Used in Roofing and Waterproofing
D 312 Asphalt Used in Roofing
D 1621 Test Method for Compressive Properties of Rigid Cellular Plastics
D 4601 Asphalt Coated Glass Fiber Base Sheet Used in Roofing
o National Roofing Contractors Association (NRCA) – Roofing and Waterproofing
Manual
o American National Standards Institute/Single Ply Roofing Industry (ANSI/SPRI)
o American Society of Civil Engineers – ASCE 7 Minimum Design Loads for
Buildings and Other Structures (for wind uplift criteria)
o Sheet Metal and Air Conditioning Contractors National Association (SMACNA) –
Architectural Sheet Metal Manual
Presence of the City’s representative at the project site in no way relieves the contractor
of his contractual responsibility to provide proper on-site supervision and to complete
and said project in accordance with the standard principals and sound roofing practices.
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Minimum Qualifications:
1. The Vendor(s) shall have operated a licensed gutter, fascia, soffit or roofing
business for a minimum of five (5) years.
2. The Vendor(s) shall provide all labor, diagnostics, parts, equipment, tools,
materials, permits, licenses, supplies, personal protective equipment, insurance
and training to successfully perform all services in accordance with the
specifications, terms, and conditions set forth herein.
3. The Vendor(s) shall comply with all applicable Federal, State, Local and City of
Denton guidelines and regulations as they relate to roofing, gutters, downspouts
installation, maintenance, and repair.
4. Warranty documents are required to be submitted to the City no later than ten
(10) calendar days after completion of any project.
5. Site shall be left in good condition and free of any debris or trash daily.
Contractor shall be responsible for clean-up and disposal of all waste, debris,
cutting and vegetation, including those thrown or dragged by his/her machinery
onto adjacent property and roadways, off of City property. The Contractor will be
responsible for the disposal of all debris and shall not use on site dumpsters for
any disposal. Area shall be kept as neat, clean, and orderly as possible during
the repair and the work site must be in the same or better condition upon
Contractor’s completion.
Hours of Service:
1. Services shall be available 24 hours a day, 365 days a year.
2. The Vendor(s) shall respond to an emergency request within two (2) hours and
be onsite within four (4) – (6) hours, of notification of the City.
3. The Vendor(s) shall respond to service requests with in four (4) hours.