BID 2025-41 Addendum -1.pdf

INVITATION TO BID #2025-41

Aquatic Park Roofing Project

ADDENDUM NUMBER 1

April 29, 2025

On April 10, 2025, Clackamas County (“County”) published Invitation to Bid #2025-41 (“BID”. The County has found that it is in its interest to amend the BID through the issuance of this Addendum #1.

Except as expressly amended below, all other terms and conditions of the original BID and subsequent Addenda shall remain unchanged.

1. The following changes are hereby made to the Project Information, Plans, and Specifications:

a. Remove and dispose of all gutter screens.

b. Clean ALL gutters and downspouts (Bag and haul debris)

c. Check slope of all gutters (Re-slope gutters if needed to provide positive drainage towards downspout)

d. Add screws and hangers to gutters as necessary for extra support, repair any broken supports.

e. Reseal ALL seams, miters, endcaps and outlets using cover strip or Elastoform. (see attachment for Elastoform)

Inspection Report: North Clackamas Aquatic Park / Gutter evaluation.

Date: 4-10-2025 Basic Understanding of construction: The gutters at the Aquatic Park are stainless steel and they are overlapped to extend the length of the gutter, where they overlap a sealer or calking is spread to seal the two pieces of steel together. Ends are welded or sealed. Around the Center there are approx. 50 joint or end connections that need to be completely inspected, cleaned and resealed. All Joints at this time need to be stripped of the previous seal and resealed even if they look to be in good condition. Their lifetime has expired.

2. Specifications are increased to replace the skylights.

3. Remove and replace the bid forms with the attached forms titled Bid Form Addendum #1.

Attachments:

• Bid Form A, Addendum #1

• Bid Form B, Addendum #1

• Skylight Specs Sheet; Section 07810.

• Everguard SA Flexible Flashing data sheet.

• Sure Seal Flashing data sheet.

End of Addendum

BID FORM A

Addendum #1

CLACKAMAS COUNTY CONSTRUCTION DOCUMENTS

NORTH CLACKAMAS AQUATIC PARK ROOF PROJECT - FULL TEAROFF REPLACEMENT

Bidder will complete the Work in accordance with the Contract Documents for the following price(s):

BID

No. Item Quantity Unit of Measure Unit Price or Lump Sum Price Figures Total Amount

1 Mobilization 1 Lump Sum $

2 Install EverGuard® PVC 80 mil Smooth Membrane by GAF or approved equal / spec 2.01

1 Lump Sum $

3 Vapor Retarder / spec 2.02 1 Lump Sum $

4 Insulation / spec 2.03 1 Lump Sum $

5 Coverboard / spec 2.04 1 Lump Sum $

6 Membrane Materials / spec 2.05 1 Lump Sum $

7 CURB/WALL FLASHING MEMBRANE / spec 2.06 1 Lump Sum $

8 Adhesives, Sealants, Primers / spec 2.07 1 Lump Sum $

9 Fasteners and Plates / spec 2.08 1 Lump Sum $

10 Flashing Accessories / spec 2.09 1 Lump Sum $

11 One 50’ roll walk off Matt 1 Lump Sum $

12 Permits 1 Lump Sum $

13 Install Guardian Fall protection cable system CB-12 Anchors complete installed / Fall Protection Attachment attachment points

Lump Sum $

14 Reroof all Canopies as existing 4 Lump Sum $

15 Remove and Replace, Reseal Skylights six 72”, six 48” 12 12 $

16 Reseal and repair gutters as needed as outline in Attachment: Gutter repair Bid

1 Lump Sum $

Company Name: ________________________________

Representative Name: ____________________________

Date: _____________

BID FORM B

Addendum #1

CLACKAMAS COUNTY CONSTRUCTION DOCUMENTS

NORTH CLACKAMAS AQUATIC PARK – (ALTERNATE) REROOF PROJECT

Bidder will complete the Work in accordance with the Contract Documents for the following price(s):

BID

No. Item Quantity Unit of Measure Unit Price or Lump Sum Price Figures Total Amount

1 Mobilization 1 Lump Sum $

2 Install EverGuard® PVC 80 mil Smooth Membrane by GAF or approved equal / spec 2.01

1 Lump Sum $

3 Vapor Retarder / spec 2.02 1 Lump Sum $

4 Membrane Materials / spec 2.05 1 Lump Sum $

5 CURB/WALL FLASHING MEMBRANE / spec 2.06 1 Lump Sum $

6 Adhesives, Sealants, Primers / spec 2.07 1 Lump Sum $

7 Fasteners and Plates / spec 2.08 1 Lump Sum $

8 Flashing Accessories / spec 2.09 1 Lump Sum $

9 One 50’ roll walk off Matt 1 Lump Sum $

10 Permits 1 Lump Sum $

11 Install Guardian Fall protection cable system CB-12 Anchors complete installed / Fall Protection Attachment attachment points

Lump Sum $

12 Reroof Canopies as existing All Lump sum $

13 Remove and Replace, Reseal Skylights six 72”, six 48” 12 12 $

14 Reseal and repair gutters as needed as outline in Attachment: Gutter repair Bid

1 Lump Sum

Company Name: ________________________________

Representative Name: ____________________________

Date: _____________

Visit gaf.com For additional information, contact GAF Design Services at 1-877-423-7663 or designservices@gaf.com ©

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Description:

Save time and labor with factory-built, easy-to-install EverGuard® Self-Adhered 6”, 9”, and 12” uncured white EPDM flashings for use on TPO roofs. Used for addressing challenging details and stripping-in TPO end laps and edge metal, this accessory can help reduce risk of leaks and callbacks, and helps create a uniform aesthetic without the need for welding.

Application:

Use soap and water on aged membrane to clean the membrane end lap area or edge metal surface to be covered.

Dry the area, then wipe it down with a white cloth moistened with EverGuard® TPO Seam Cleaner. Brush, roll, or spray EverGuard® TPO Primer onto each surface, carrying approximately three inches (76 mm) past the ends. Ensure the primer has properly dried (flashed off) before applying EverGuard® Self- Adhered 6”, 9”, or 12” EPDM Tape with a silicone roller. Install EverGuard Self- Adhered white EPDM flashings at an ambient air temperature of 40°F (4°C) and rising.

SPECIFICATIONS

Size 6” (152 mm) x 100’ (30.5m)

9” (229 mm) x 50’ (15.25 m)

12” (305 mm) x 50’ (15.25 m)

Rolls per case 2 1 1

SKU 7554A920 7554B920 7554C920

Product Information:

EverGuard® Self-Adhered 6”, 9”, and 12” EPDM Flashings is non-reinforced uncured 60 mil white EPDM membrane backed with a butyl adhesive for use on TPO roofs, available in three widths.

Store material in original unopened packaging at temperatures between 60°F and 80°F (15°C – 27°C).

Product shelf life is 6 months from date of manufacture when stored as recommended.

6”, 9”, and 12” Tape

Also available:

Self-adhered flashing accessories made from uncured white EPDM can help reduce risk of leaks and callbacks, while helping create a uniform look without welding.

EverGuard® SA EPDM T-Joint Cover Patch, White

Create a membrane seal over splice intersections.

EverGuard® SA EPDM Patch 6" x 9", White

Multi-purpose moldable sheet for use on corners and repairs on TPO roofs

800-479-6832 | P.O. Box 7000 | Carlisle, PA 17013 | Fax: 717-245-7053 | www.carlislesyntec.com

E X P E R I E N C E T H E C A R L I S L E D I F F E R E N C E

Pressure-Sensitive Elastoform Flashing®

Overview

Carlisle’s Sure-Seal EPDM Pressure-Sensitive (PS) Elastoform Flashing is a nominal 60-mil-thick (1.5 mm) uncured EPDM membrane, laminated to a nominal 30-mil-thick (0.75 mm), fully cured PS adhesive. This product is easily malleable and highly adaptable to irregular shapes and surfaces.

PS Elastoform Flashing is self-curing and can be used to flash pipes and scuppers, as well as other rooftop structures and penetrations. The clear poly release liner on the 12"-wide product is pre-slit down the center, allowing the applicator to partially remove the liner for ease of installation.

Features and Benefits

» Black and Gray available in 6" x 100', 9" x 50', and 12" x 50' rolls

» Gray is approved for use on Gray TPO membrane

» Adaptable to irregular shapes and surfaces

» Self-curing membrane

» Labor and cost savings in field applications

Installation

1. The entire surface where the PS Elastoform Flashing will be applied must be clean. The adhesive on the back of the PS Elastoform Flashing will not adhere to dusted or dirty surfaces. Any residual contamination will be detrimental to the bond strength of the adhesive.

2. Remove all foreign material.

a. �Remove excess mica dust by brooming or wiping with a clean, dry rag or Carlisle HP Splice Wipe.

b. �The use of Weathered Membrane Cleaner may be necessary.

This process is essential on membrane that has been exposed for a number of weeks.

�Note: Permeation-resistant gloves (that meet ANSI/ISEA 105- 2005) are required for hand protection when cleaners or primers are being used.

c. Allow the membrane to dry thoroughly before proceeding.

3. Apply HP-250 or Low-VOC Primer per instructions on respective product data sheets. Review Carlisle specifications and details for complete installation information.

Note: The use of excessive amounts of primer will not significantly enhance the adhesion of the PS Elastoform Flashing to the EPDM membrane. Use only the amount necessary to obtain 100% coverage of the area where the PS Elastoform Flashing will be applied.

4. �Allow the primer to flash-off until it does not transfer to a dry finger touch yet remains tacky. Install the pressure-sensitive product immediately after the primer has flashed-off to promote adhesion and avoid contamination.

5. Position the flashing over the area to be covered and press down the exposed tape adhesive using firm, even hand pressure across the entire area. Install the elongated diamond pattern parallel to the deck when flashing corners or vertical pipe wraps.

6. Immediately roll the PS Elastoform Flashing with a 2"-wide (50 mm) roller, using positive pressure. Roll across the flashing edge, not parallel to it. Install the enlogated diamond pattern parallel to the deck when flashing corners or vertical pipe wraps.

7. When temperatures fall below 40°F (4°C) or when nearing the shelf life, heat the flashing with a hot-air gun to avoid bridging and aid in formability.

8. Apply Lap Sealant (Black) or Universal Single-Ply Sealant (Gray) to the outside edge of the flashing. Prime the surface prior to applying Gray Universal Single-Ply Sealant.

E X P E R I E N C E T H E C A R L I S L E D I F F E R E N C E

800-479-6832 | P.O. Box 7000 | Carlisle, PA 17013 | Fax: 717-245-7053 | www.carlislesyntec.com

08.09.24 © 2024 Carlisle.

REPRINT CODE: 603138 - “PS Elastoform Flashing Product Data Sheet”

Carlisle, Sure-Seal, and Elastoform Flashing are trademarks of Carlisle.

LEED is a registered trademark of the U.S. Green Building Council.

9. PS Elastoform Flashing is used to flash many different roofing system structures and penetrations. The specific method of applying the flashing for each individual situation is different. The appropriate Carlisle specification and/or detail must be consulted prior to application.

Review Carlisle specifications and details for complete installation information.

Precautions

» Avoid prolonged contact with skin. In case of contact with skin, thoroughly wash affected area with soap and water.

» Prolonged jobsite storage temperatures in excess of 90°F (32°C) will shorten product shelf life.

» In warm, sunny weather, keep PS Elastoform Flashing rolls in their box and in a shaded area until ready to use.

» Storage and use of PS Elastoform Flashing at temperatures below 40°F (4°C) will result in a loss of adhesive tack and, in extreme cases, will result in no bond to the substrate. Overnight storage must be available to keep the temperature of the PS Elastoform Flashing at a minimum of 60°F (15°C). Hot boxes for jobsite storage must be provided to maintain a minimum product temperature of 40°F (4°C).

» PS Elastoform Flashing must be stored in a dry area. It is recommended to store the flashing below 80°F (27°C) to ensure maximum formability and shelf life.

» Due to solvent flash-off, condensation may form on applied primer when the ambient temperature is near the dew point. If condensation develops, the application of primer and PS Elastoform Flashing must be discontinued as proper adhesion will not be achieved. Allow the surface to dry and reapply primer to the previously coated surface. Apply PS Elastoform Flashing when conditions allow.

» Do not allow waste products (petroleum, grease, oil, solvents, vegetable or mineral oils, animal fats, etc.) or direct steam venting to come in contact with the PS Elastoform Flashing.

» A heat gun is required when forming PS Elastoform Flashing in colder temperatures or when nearing the shelf life.

» KEEP OUT OF THE REACH OF CHILDREN.

Pressure-Sensitive Elastoform Flashing

Typical Properties and Characteristics

Color Black or Gray

Base Membrane Adhesive

EPDM

Synthetic Rubber

Ozone Resistance Condition after exposure to 100 pphm Ozone in air for 168 hours @ 104°F (40°C). Specimen under 50% strain.

No cracks

Brittleness Temp -49°F (-45°C)

Nominal Thickness 90 mil (2.25 mm)

Nominal Width Membrane Adhesive

6" (150 mm), 9" (225 mm), 12" (300 mm), 63⁄16" (155 mm), 93⁄16" (230 mm), 123⁄16" (305 mm)

Net Weight Per Roll 6" = 30 lbs (13.6 kg) 9" = 24 lbs (10.9 kg) 12" = 32 lbs (14.5 kg)

Packaging 6" = 2 rolls/carton, 100' (30 m) 9" = 1 roll/carton, 50' (15 m) 12" = 1 roll/carton, 50' (15 m)

Shelf Life 9 months when stored between 60° – 80°F (15° – 27°C)

Typical properties and characteristics are based on samples tested and are not guaranteed for all samples of this product. This data and information is intended as a guide and does not reflect the specification range for any particular property of this product.

Sure-Seal Pressure-Sensitive Elastoform Flashing meets or exceeds the minimum requirements set forth by ASTM D4811 for a Type 1 (EPDM). Class V (cures on the roof) flashing material.

LEED® Information

Pre-consumer Recycled Content 0%

Post-consumer Recycled Content 0%

Manufacturing Location Greenville, IL

Solar Reflectance Index (SRI) N/A