ESBD_487718_1770827413443_PM-1413_Addendum No. [#1]_SOW Clarification.pdf
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- Attached to
- PM-1413 JBK, CC & Cornette Lib. Roof Replacement
- Solicitation number
- PM-1413
- Issued by
- Ochiltree County, Texas
About this file
This is a Scope of Work Addendum clarifying roofing and related services for multiple buildings at West Texas A&M University (WTAMU). The project encompasses nine base proposals organized into three scope packages: Package I includes five polyisocyanurate and modified bitumen roof replacement projects at the Classroom Center, Jack B. Kelly Student Center (three sections), and Cornette Library; Package II covers a shingle roof replacement at Connor Hall and polycarbonate panel replacement at the Greenhouses; and Package III addresses roof coating work at the Panhandle Plains Historical Museum and modified bitumen roof replacement at two additional museum sections. Work includes removal of existing roof systems to deck level, installation of insulation boards (polyisocyanurate, perlite, or equivalent), cover boards, modified bitumen or shingle systems, metal flashings and accessories, as well as HVAC, electrical, piping, and gas line disconnection and reconnection at all locations. All installations must comply with NRCA, SMACNA, and ANSI/SPRI standards and manufacturer guidelines, with gas lines tested and certified by master or licensed plumbers.
Warranty provisions include a twenty-year non-delegable limited (NDL) manufacturer's warranty and two-year contractor's warranty for most roofing systems, with two-year contractor's warranties for shingle, polycarbonate, and coating applications. New metal components—including coping caps, flashings, and accessories—shall be prefinished aluminum or composite materials matching existing gauges and finishes, or selected by the owner from available color options. The specific deck types vary by location, including lightweight concrete, structural concrete, gypsum, and metal decks, requiring tailored base sheet and fastening approaches per ASCE 7 criteria where applicable. No pricing information, specific response deadlines, site visit dates, or bidder conference details are provided in this addendum document.
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SCOPE OF WORK PACKAGE I:
BASE PROPOSAL 1 – WTAMU CLASSROOM CENTER – SINGLE-PLY – ROOF
SECTIONS (A2, A3, B2, B3, C2, & D2)
• WORK SHALL INCLUDE REMOVAL OF THE EXISTING ROOF SYSTEM DOWN TO
LIGHTWEIGHT CONCRETE DECK.
• MECHANICALLY FASTEN A VENTING BASE SHEET TO THE DECK AS PER ASCE 7
CRITERIA.
• PROVIDE A TWO INCH (2”) POLYISOCYANURATE INSULATION BOARD SET IN
SPECIFIED ADHESIVE.
• PROVIDE A ONE-QUARTER INCH (1/4”) PER FOOT TAPERED POLYISOCYANURATE
SYSTEM SET IN SPECIFIED ADHESIVE.
• INSTALL ALL ASSOCIATED CRICKETS SET IN SPECIFIED ADHESIVE AS NOTED ON
ROOF PLANS.
• PROVIDE A ONE-HALF INCH (1/2”) COVER BOARD SET IN SPECIFIED ADHESIVE.
• PROVIDE A NEW TWO-PLY MODIFIED BITUMEN ROOF SYSTEM SET IN COLD
APPLIED ADHESIVE. ALL END AND SIDE LAPS TO BE HOT AIR WELDED.
• PROVIDE A TWENTY (20) YEAR NDL MANUFACTURER ’S WARRANTY AND A TWO
(2) YEAR CONTRACTOR ’S WARRANTY.
• NEW METAL SHALL BE PREFINISHED, SELECTED BY THE OWNER FROM A FULL
RANGE OF COLORS.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
DETAILS AND MANUFACTURER’S GUIDELINES.
• ALL GAS LINES TO BE TESTED AND CERTIFIED BY A MASTER PLUMBER.
BASE PROPOSAL 2 – WTAMU JACK B. KELLY STUDENT CENTER – SINGLE PLY
- ROOF SECTION J & J1
THE STRUCTURAL CONCRETE DECK.
• PROVIDE A TWO INCH (2”) POLYISOCYANURATE INSULATION BOARD SET IN
SPECIFIED ADHESIVE.
• PROVIDE A ONE-QUARTER INCH (1/4”) PER FOOT TAPERED POLYISOCYANURATE
SYSTEM SET IN SPECIFIED ADHESIVE.
• INSTALL ALL ASSOCIATED CRICKETS SET IN SPECIFIED ADHESIVE AS NOTED ON
ROOF PLANS.
• PROVIDE A ONE-HALF INCH (1/2”) COVER BOARD SET IN SPECIFIED ADHESIVE.
• PROVIDE A NEW TWO-PLY MODIFIED BITUMEN ROOF SYSTEM SET IN COLD
APPLIED ADHESIVE. ALL END AND SIDE LAPS TO BE HOT AIR WELDED.
• PROVIDE A TWENTY (20) YEAR NDL MANUFACTURER ’S WARRANTY AND A TWO
(2) YEAR CONTRACTOR ’S WARRANTY.
• NEW METAL SHALL BE ALUMINUM TO MATCH EXISTING GAUGE AND FINISH.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
BASE PROPOSAL 3 – WTAMU JACK B. KELLY STUDENT CENTER – SINGLE PLY
– ROOF SECTION L
THE GYPSUM DECK.
• MECHANICALLY FASTEN A VENTING BASE SHEET TO THE DECK AS PER ASCE 7
CRITERIA.
• PROVIDE A TWO INCH (2”) POLYISOCYANURATE INSULATION BOARD SET IN
SPECIFIED ADHESIVE.
• PROVIDE A ONE-QUARTER INCH (1/4”) PER FOOT TAPERED POLYISOCYANURATE
SYSTEM SET IN SPECIFIED ADHESIVE.
• INSTALL ALL ASSOCIATED CRICKETS SET IN SPECIFIED ADHESIVE AS NOTED ON
ROOF PLANS.
• PROVIDE A ONE-HALF INCH (1/2”) COVER BOARD SET IN SPECIFIED ADHESIVE.
• PROVIDE A NEW TWO-PLY MODIFIED BITUMEN ROOF SYSTEM SET IN COLD
APPLIED ADHESIVE. ALL END AND SIDE LAPS TO BE HOT AIR WELDED.
• PROVIDE A TWENTY (20) YEAR NDL MANUFACTURER ’S WARRANTY AND A TWO
(2) YEAR CONTRACTOR ’S WARRANTY.
• NEW METAL SHALL BE ALUMINUM TO MATCH EXISTING GAUGE AND FINISH.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
BASE PROPOSAL 4 – WTAMU JACK B. KELLY STUDENT CENTER – SINGLE PLY
- ROOF SECTIONS (A1, B1, C1, D1, E, F, G, H, & K)
THE METAL DECK.
• MECHANICALLY FASTEN (2) LAYERS OF TWO INCH (2”) POLYISOCYANURATE
INSULATION BOARD TO THE DECK AS PER ASCE 7 CRITERIA.
• INSTALL ALL ASSOCIATED CRICKETS SET IN SPECIFIED ADHESIVE AS NOTED ON
ROOF PLANS.
• PROVIDE A ONE-HALF INCH (1/2”) COVER BOARD SET IN SPECIFIED ADHESIVE.
• PROVIDE A NEW TWO-PLY MODIFIED BITUMEN ROOF SYSTEM SET IN COLD
APPLIED ADHESIVE. ALL END AND SIDE LAPS TO BE HOT AIR WELDED.
• PROVIDE A TWENTY (20) YEAR NDL MANUFACTURER ’S WARRANTY AND A TWO
(2) YEAR CONTRACTOR ’S WARRANTY.
• NEW METAL SHALL BE ALUMINUM TO MATCH EXISTING GAUGE AND FINISH.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
BASE PROPOSAL 5 – WTAMU CORNETTE LIBRARY – SINGLE-PLY – ROOF
SECTIONS (A, B, C, & D)
LIGHTWEIGHT CONCRETE DECK.
• MECHANICALLY FASTEN A VENTING BASE SHEET TO THE DECK AS PER ASCE 7
CRITERIA.
• PROVIDE TWO LAYERS OF TWO INCH (4 ”) POLYISOCYANURATE INSULATION
BOARD SET IN SPECIFIED ADHESIVE.
• INSTALL ALL ASSOCIATED CRICKETS SET IN SPECIFIED ADHESIVE AS NOTED ON
ROOF PLANS.
• PROVIDE A ONE-HALF INCH (1/2”) COVER BOARD SET IN SPECIFIED ADHESIVE.
• PROVIDE A NEW TWO-PLY MODIFIED BITUMEN ROOF SYSTEM SET IN COLD
APPLIED ADHESIVE. ALL END AND SIDE LAPS TO BE HOT AIR WELDED.
• PROVIDE A TWENTY (20) YEAR NDL MANUFACTURER ’S WARRANTY AND A TWO
(2) YEAR CONTRACTOR’S WARRANTY.
• NEW METAL SHALL BE PREFINISHED, SELECTED BY THE OWNER FROM A FULL
RANGE OF COLORS.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
SCOPE OF WORK PACKAGE II:
BASE PROPOSAL 6 – WTAMU CONNOR HALL – SHINGLES – ROOF SECTION A
• WORK SHALL INCLUDE REMOVAL OF THE EXISTING SHINGLE ROOF SYSTEM
DOWN TO THE DECK.
• PROVIDE NEW SYNTHETIC UNDERLAYMENT.
• PROVIDE ALL ASSOCIATED SHEET METAL AND ACCESSORIES.
• PROVIDE NEW ARCHITECTURAL COMPOSITION SHINGLES.
• REMOVE AND REPLACE ALL FLASHINGS.
• PROVIDE A TWO (2) YEAR CONTRACTOR’S WARRANTY.
• NEW METAL SHALL BE PREFINISHED, SELECTED BY THE OWNER FROM A FULL
RANGE OF COLORS.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
BASE PROPOSAL 7 – WTAMU GREENHOUSES – POLYCARBONATE PANELS – ROOF
SECTIONS (A, B, & C)
• WORK SHALL INCLUDE REMOVAL OF THE EXISTING POLYCARBONATE PANELS.
• PROVIDE NEW POLYCARBONATE ROOF SYSTEM PER LIKE, KIND, AND QUALITY.
• PROVIDE NEW ROOF ACCESSORIES TO MATCH EXISTING SIZE AND STYLE.
• NEW METAL SHALL BE PREFINISHED, SELECTED BY THE OWNER FROM A FULL
RANGE OF COLORS.
• PROVIDE A TWO (2) YEAR CONTRACTOR’S WARRANTY.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
SCOPE OF WORK PACKAGE III:
BASE PROPOSAL 8 – WTAMU PANHANDLE PLAINS HISTORICAL MUSEUM – ROOF
COATING – ROOF SECTIONS (A, B, B1, B2, C, G, H, J, K, L & M)
• WORK SHALL INCLUDE POWER WASHING THE EXISTING MODIFIED BITUMEN
ROOF SYSTEM .
• MAKE ALL NECESSARY REPAIRS TO ANY AND ALL DEFICIENCIES BEFORE
INSTALLING THE BASE LAYER OF COATING
• INSTALL NEW COATING AS PER THE MANUFACTURER ’S WRITTEN
INSTRUCTIONS AND SPECIFIED RATES.
• PROVIDE A TWO (2) YEAR CONTRACTOR'S WARRANTY.
• NEW METAL COPING CAP AND ACCESSORIES SHALL BE PREFINISHED,
SELECTED BY THE OWNER FROM A FULL RANGE OF COLORS INCLUDING
PREMIUM AND METALLICS.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
DETAILS AND MANUFACTURER'S GUIDELINES. ALL GAS LINES TO BE TESTED
AND CERTIFIED BY A LICENSED PLUMBER.
BASE PROPOSAL 9 – WTAMU PANHANDLE PLAINS HISTORICAL MUSEUM – MODIFIED
BITUMEN – ROOF SECTIONS (D, E, & F)
THE LIGHTWEIGHT CONCRETE DECK.
• MECHANICALLY FASTEN A VENTING BASE SHEET TO THE DECK AS PER ASCE 7
CRITERIA.
• PROVIDE A THREE-QUARTER INCH (3/4”) PERLITE INSULATION BOARD SET IN
SPECIFIED ADHESIVE.
• INSTALL ALL ASSOCIATED CRICKETS SET IN SPECIFIED ADHESIVE AS NOTED ON
ROOF PLANS.
• PROVIDE A ONE-HALF INCH (1/2”) COVER BOARD SET IN SPECIFIED ADHESIVE.
• PROVIDE A NEW TWO-PLY MODIFIED BITUMEN ROOF SYSTEM SET IN COLD
APPLIED ADHESIVE. ALL END AND SIDE LAPS TO BE HOT AIR WELDED.
• PROVIDE A TWENTY (20) YEAR NDL MANUFACTURER ’S WARRANTY AND A TWO
(2) YEAR CONTRACTOR’S WARRANTY.
• NEW METAL SHALL BE PREFINISHED, SELECTED BY THE OWNER FROM A FULL
RANGE OF COLORS.
• WORK SHALL ALSO INCLUDE ALL HVAC AND ELECTRICAL, PIPING DISCONNECT
AND RECONNECTION.
• INSTALLATION SHALL BE AS PER NRCA, SMACNA, ANSI/SPRI, SPECIFICATIONS,
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