AMENDMENT NO. 2 TO REQUEST FOR PROPOSALS RFP 07-2025.pdf
PDF 1 MB Posted
- Attached to
- Roof Replacement
- Solicitation number
- 3-24-2025
- Issued by
- Adams County, Pueblo City, Colorado
About this file
This document is Amendment No. 2 to Request for Proposals (RFP #07-2025) for the Pueblo West Library Roofing Project, issued by the Pueblo City-County Library District. The roofing project involves a comprehensive roof replacement at 298 S Joe Martinez Blvd. in Pueblo West, Colorado, with bids due by 5:00 PM on Wednesday, 04/09/25. The project requires removing the existing roof system and installing a new single-ply PVC membrane roof covering, including 148 squares of tear-off, new vapor retarder, insulation, tapered insulation, cover board, and membrane installation. The scope of work encompasses detailed roof replacement specifications, including membrane options (60-mil bare backed or 80-mil fleece back), flashing, curb work, safety considerations, and full roof system replacement.
The project includes specific technical requirements such as installing 2-layers of 2.6-polyiso board for 5.2-inches of insulation, 1/4" slope tapers (45.7 squares), and crickets at curbs (7.9 squares). The total membrane installation covers 215.5 squares, with additional work on parapet walls, curb flashings, and various roof penetrations. Bidders must submit all required qualifications listed in the bid packet, and the project involves detaching and resetting various roof components like electrical lines, gas lines, satellite dishes, and HVAC equipment. The existing roof, installed in 2018, is a single-ply TPO membrane on a metal building with a low-slope design, and the replacement will maintain the current 1/4 inch per foot roof slope.
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AMENDMENT NO. 2 TO REQUEST FOR PROPOSALS—RFP #07-2025
Pueblo West Library Roofing Project
AMENDMENT: RFP has been amended as described below:
The bid is due by 5:00 PM tomorrow (Wednesday 04/09/25) as stated in the updated Invitation to Bid and must be sent to both of the following emails bri.reyes@pueblolibrary.org; dan.c@pcsden.com
The PVC membrane is being quoted with 2 options. The base bid is for 60-mil membrane bare backed membrane. Alternate #2 is for the difference to upgrade to 80-mil fleece back.
You must submit all required qualifications to Bid this Project as listed on numbered page 2 of the Bid Packet in the Bid Solicitation.
The taper plan was updated and included last week. I have attached here along with the updated scope of work in appendix C as we have had some questions regarding this. The correct taper area is
45.7 squares and is 1/4 slope polyiso taper, The crickets at the curbs was also updated to show the total area of 7.9 SQ.
The online Bid Packet also contains all of the information including any updates for this project https://app.box.com/s/gie1slejwf1j54c1pxvd9t3z8rw5gnme
The attached Appendix C and Cricket Taper Plan has been amended to include all updated information as of April 8, 2025.
Professional Construction Services
11877 W. 80th Ave. Arvada, CO 80005 Phone: 720-340-7530
Fax: 866-459-3334
Appendix C
Scope of Work and
Roof Details
Building Information
Location: 298 S Joe Martinez Blvd. Pueblo West, Colorado 81007
Jurisdiction Pueblo Regional Building Department is the authority having jurisdiction (AHJ)
Elevation: 5,131 feet Built: 1999 Building Use: Public Library Classification: Group A-3 Assembly occupancies Construction: Metal building with steel frame and roof deck No. Stories 1 GFA 26,614 SF approximate gross floor area
ROOF STRUCTURE
Type: Steel structure Roof Deck: Metal M-Deck (gauge T.B.D.)
Purlins: Gauge and thickness T.B.D.
Columns: T.B.D.
ROOF
Roof Style: Low Slope
Roof Covering: Single Ply TPO Membrane Roof Installed: 2018 Roof Age: 3-yrs
Roof Slope: 1/4 in per foot
Roof Height: Approximately 16 to 18 feet from the ground to the top of the parapet walls.
EXTERIOR
Walls Concrete block
DRAINAGE
Drains Internal roof drains and overflow drains
ACCESS
Roof Access: Front. Left and right parking areas
BUILDING INFORMATION
03/21/25
Pueblo West Library
Scope of Work
Item Qty Unit Action
PROPOSED SCOPE OF WORK
Notes
Pueblo West Library 04/03/25
Tear-off 148.0 SQ Remove Remove and haul away the existing roof system including the membrane all roof components Vapor Retarder 148.0 SQ Install Install new class 2 vapor retarder with a perm rating from 0.1 to 1.0 Insulation 148.0 SQ Install Install 2-layers of 2.6-polyiso board for 5.2-inches total Taper 45.7 SQ Replace Install new 1/4” slope taper per the taper plan provided in appendix A Roof Diagrams Crickets 7.9 SQ Replace Install new 1/4” slope crickets at the upslope of all curbs over 30-inches wide Cover Board 148.0 SQ Install Install new 1/2-inch Fiberglass reinforced gypsum cover board Membrane 215.5 SQ Total Install new single ply 60 or 80 mil PVC membrane
Field 148.0 SQ Install Install new 60 mil reinforced single ply PVC membrane in the field Parapet Walls 33.9 SQ Install Install new single ply PVC membrane at the parapet walls to extend up and over by 2" min.
Walls 32.1 SQ Install Install new single ply PVC membrane at the walls to extend under siding a minimum of 2" Curbs 1.5 SQ Install Install new single ply PVC membrane to the top of all curbs and up and over where possible.
Curb Flashings
Termination 182.8 LF Install Terminate membrane up and over the curb or at top of curbs with 1" term bar & counter flashing Counter Flash 162.8 LF Install Counter flashing for RTU's and roof hatch
Wall Coping 834 LF Replace Remove and replace wall coping with new 24-gauge coated steel coping with taper Wall Flashing 771 LF Install Install 4-inch Z-flashing plus 4-inch counter flashing secured 12-in on center at walls Transition 61 LF Replace Transition to standing seam metal roof at front (west) end of the building Electrical Lines T.B.D. LF D&R Detach and reset electrical lines as necessary. Must use licensed electrician.
Gas Lines 56 LF D&R Detach and reset gas lines as necessary. Must use licensed mechanical contractor.
Drains 10 EA Reflash Reflash existing 4-in roof drains with new membrane (do not reduce drain size) Overflow Drains 10 EA Reflash Reflash existing overflow drains with new membrane (maintain flow 2-in off the roof) Scuppers 5 EA Replace Install new scuppers at the small lower roofs on the east side (approximetaly 4" x 6" x 13" deep +/-) Dome Strainers 20 EA Replace Replace existing dome strainers with new coated cast iron dome strainers Pipe Flashings 8 EA Replace Install new field fabricated membrane flashing at all pipe vents Vent Flashings 4 EA Replace Install new field fabricated membrane flashing at all roof penetrations Pitch Pockets 4 EA Replace Replace pitch pockets with new PVC coated pitch pockets up to 6-in x 8-in Storm Collars 4 EA Reuse Seal storm collars. Replace damaged storm collars as necessary.
Gas Caps 4 EA Replace Replace damaged 6 and 8-in type B gas vents Pipe Stands 11 EA Reuse Install new pipe stands as needed Walk Pads 214 LF Reuse Install new 30-in square PVC or rubber walk pads around RTU's and roof hatch (min. 0.125-in thick) Satellite Dish 1 EA D&R Detach and reset ballasted satellite dish AC Condenser Units 1 EA D&R Detach and reset A/C condensers. Use licensed mechanical contractor to recharge if disconnected Ballast Pavers 4 EA D&R Detach and reset 24 to 36-in concrete pavers under A/C condenser units
2. Recover (PVC membrane) Prepare 148.0 SQ Remove Clean and prepare the existing TPO roof membrane Cover Board 148.0 SQ Install Install new 1/2-inch Fiberglass reinforced gypsum cover board Insulation 148.0 SQ Install Inspect and replace damaged insulation board as necessary Crickets 7.9 SQ Replace Install new 1/4” slope crickets at the upslope of all curbs as needed.
Membrane 215.5 SQ Total Install new single ply 60 or 80 mil PVC membrane
Field 148.0 SQ Reuse Install new 60 mil reinforced single ply PVC membrane in the field Parapet Walls 33.9 SQ Install new single ply PVC membrane at the parapet walls to extend up and over by 2" min.
Walls 32.1 SQ Install new single ply PVC membrane at the walls to extend under siding a minimum of 2" Curbs 1.5 SQ Install new single ply PVC membrane to the top of all curbs and up and over where possible.
Curb Flashings
Termination 182.8 LF Install Terminate membrane up and over the curb or at top of curbs with 1" term bar and counter flashing Counter Flash 162.8 LF Install Counter flashing for RTU's and roof hatch
Wall Coping 834 LF Replace Remove and replace wall coping with new 24-gauge coated steel coping with taper Wall Flashing 771 LF Install Install 4-inch Z-flashing plus 4-inch counter flashing secured 12-in on center at walls Electrical Lines T.B.D. LF D&R Detach and reset electrical lines as necessary. Must use licensed electrician.
Gas Lines 56 LF D&R Detach and reset gas lines as necessary. Must use licensed mechanical contractor.
Drains 10 EA Reflash Reflash existing 4-in roof drains with new membrane (do not reduce drain size) Overflow Drains 10 EA Reflash Reflash existing overflow drains with new membrane (maintain flow 2-in off the roof) Scuppers 5 EA Replace Install new scuppers at the small lower roofs on the east side (approximetaly 4" x 6" x 13" deep +/-) Dome Strainers 20 EA Replace Replace existing dome strainers with new coated cast iron dome strainers Pipe Flashings 6 EA Replace Install new field fabricated membrane flashing at all pipe vents Vent Flashings 4 EA Replace Install new field fabricated membrane flashing at all roof penetrations Pitch Pockets 4 EA Replace Replace pitch pockets with new PVC coated pitch pockets up to 6-in x 8-in Storm Collars 4 EA Reuse Seal storm collars. Replace damaged storm collars as necessary.
Gas Caps 4 EA Replace Replace damaged 6 and 8-in type B gas vents Pipe Stands 11 EA Reuse Install new pipe stands as needed Walk Pads 214 LF Reuse Install new 30-in square PVC or rubber walk pads around RTU's and roof hatch (min. 0.125-in thick) Satellite Dish 1 EA D&R Detach and reset ballasted satellite dish AC Condenser Units 1 EA D&R Detach and reset A/C condensers. Use licensed mechanical contractor to recharge if disconnected Ballast Pavers 4 EA D&R Detach and reset 24 to 36-in concrete pavers under A/C condenser units
Item Qty Unit Action
PROPOSED SCOPE OF WORK
Notes
Pueblo West Library 04/03/25
Job Considerations Construction Yard 1 Lot Install Setup a construction yard to procure materials Dumpster 1 EA Install Place dumpster onsite for excess debris collection and removal Safety
Guard Rails 1 Lot Install Set-up safety guard rails at parapet walls in areas being worked on as required by OSHA standards Cones 1 Lot Install Setup cones and/or bollards as necessary to block and/or direct pedestrian traffic Caution Tape 1 Lot Install Install caution tape as necessary to block of areas being worked on
Debris Chute 1 Lot Install Setup debris chute to collect and transfer roofing materials an debris Crane / Telehandler 8 HRS Install Crane or telehandler forklift to load and offload materials and equipment onto roof Toilet 1 EA Install Place portable toilet during roof installation
ADDITIONAL NOTES
1. Follow the job specifications or manufacturers installation instructions requirements for all installation details. Use whichever is the most stringent.
2. An approved safety plan meeting OSHA standards is required to be in place prior to construction and adhered to during installation.
3. Roof access for installation must be from the exterior with proper safety measures in place
4. Construction loads must stay within the allowable loads as determined by the structural certification.
5. Warranty requirements: ensure all roof materials and appurtenances are installed to meet the required warranty.
Roof Details
Curb Description Counter Taper Perim.. Raise
# Flash Crickets Length Width Height Length Area Curb
CURBS SF IN IN IN LF SF IN
1 RTU 61.7 64 274.0 96.0 26.0 61.67 133.61
2 2nd Support curb for RTU 17.0 6.0 96.0 20.0 17.00 28.33
3 RTU 61.7 64 274.0 96.0 26.0 61.67 133.61
4 2nd Support curb for RTU 17.0 6.0 96.0 20.0 17.00 28.33 5 Ventilator 16.0 16.0 13.5 5.33 6.00 6 Roof Hatch 5.5 27 40.0 33.0 12.0 5.50 5.50 7 Ventilator 16.0 16.0 13.5 5.33 6.00 8 A/C Condensorr on 2 ea 2' x 2' pavers 30.0 36.0 12.0 6.00 6.00 9 Ballasted Sattelite Dish 20.0 20.0 12.0 3.33 3.33
10 A/C Condensor on 2 ea 3' x 3' pavers
TOTALS 162.8 154.7 56.83 42.08 12.92 182.83 350.72
(LF) (SF) (LF) (LF) (LF) (LF) (SF)
Dimensions
CURB DETAILS
Description Width Height Length Wall Over Total Notes
# In In Ft Area (sf) Area (sf) Area (sf) 1 Parapet Walls 13.5 30.75 833.9 2136.9 1077.1 3214.0 Varies from 14.5" to 27" high 2 36 54.6 163.8 9.1 172.9 3 -54.6 0.0 4 0.0 0.0 0.0 5 0.0 0.0 0.0 6 0.0 0.0 0.0 7 0.0 0.0 0.0 8 0.0 0.0 0.0 9 0.0 0.0 0.0 10 0.0 0.0 0.0
Avg. Avg. Total Parapet Add'l Total
Width Height Length Area Area Area
13.5 66.8 833.9 2300.7 1086.2 3386.9
Area Over includes a 2-inch lap over the walls Heights highlighted in yellow need to be verified.
Description Width Height Length Wall Over Total Notes
# In In Ft Area (sf) Area (sf) Area (sf) 1 Walls 0 0.5 770.5 32.1 32.1 Atrium walls 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 0.0 0.0
Avg. Avg. Total Wall Add'l Total
Width Height Length Area Area Area
0.0 0.5 770.5 32.1 0.0 32.1
WALL FLASHING
PARAPET WALL DETAILS
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Diagram 298 South Joe Martinez Boulevard, Pueblo West, CO 81007
This report was prepared by Professional Construction Services. Copyright © 2025 Roofr.com | All rights reserved. 2
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File details come from the government source that posted it. Updated .