Appendix 3 CCWX expectations.pdf

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Attached to
RFP 2025-27 weatherization and related specialty construction services to low-income residents
Solicitation number
S-C01010-00013133
Issued by
Clackamas County, Oregon

About this file

This document is Appendix 3 from Clackamas County Weatherization Services (CCWX), detailing required measure installation expectations for weatherization contractors. The appendix provides comprehensive technical guidelines for executing weatherization work, focusing on specific installation requirements for residential properties, including mobile homes and site-built dwellings. The document outlines 21 specific technical requirements covering areas such as exhaust fan installation, lead-safe renovation practices, compliance with federal and state codes, jobsite notification procedures, inspection protocols, and specific technical specifications for insulation, duct work, roof repairs, and ventilation systems.

The document does not contain specific pricing, funding sources, or contract term information, but instead serves as a technical specification guide for contractors performing weatherization services. Key compliance requirements include obtaining signed "Renovate Right" receipts for pre-1978 dwellings, adhering to federal and state building codes, conducting mandatory cover inspections, using specific installation techniques for insulation and duct work, and obtaining prior approval for any scope of work modifications. Contractors are required to review and return all CCWX-generated documents within five business days and maintain strict adherence to the technical installation standards outlined in the appendix.

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Appendix 3

APPENDIX 3

Clackamas County Weatherization Services

Required Measure Install Expectations

1. ASHRAE Compliant exhaust fans and switches must be installed before any other Weatherization Measures are started.

2. All pre-1978 dwellings require delivery of a “Renovate Right Pamphlet” and you must obtain a “Renovate Right Receipt” signed and dated by the customer, no more than 60 days prior to the start of job, and no less than 7 days prior to the start of work. If mailed, you must send it via certified mail, no less than

7 days before the start of the job. (the signed and dated receipt are required to be submitted with invoice and closeout documents).

3. The Contractor at all times shall observe and comply with all Federal and Oregon state codes, laws and lawful regulations, which may include the most recent versions of the OWAP, United States Department of Housing and Urban Development (HUD), Oregon Occupational Safety and Health Division (OR

OSHA), Uniform Building Code (UBC) and the National Electric Code (NEC) and Uniform Mechanical Code (UMC).

4. Contractor is required to notify CCWX no more than 1½ hours after arriving on the job site to confirm all the plumbing, electrical, etc., are free of leaks and working properly and that the job is cleared to proceed Failure to notify the county of any findings at that time will then be the contractor’s responsibility to repair.

5. A COPY of the actual Clackamas County Scope of Work and any Change Orders must be furnished to any and all workers who are working on our projects.

This applies to all workers sent to a job site. County staff must have access to this Scope of Work while visiting the job site. Failure to do so may result in a failed inspection. **This is to address Contractor crew confusion as to what weatherization measures they are being asked to install. This requirement is an attempt to eradicate this frequent field observation**

6. Cover inspections are mandatory. All measures and prep work that will eventually be covered must pass a cover inspection before completing the measure

(duct sealing, exhaust vent pipe including dryer vent pipe, floor penetrations, attic penetrations, wall penetrations, etc.).

7. When supporting batt insulation with twine (floor, wall, ducting, water pipe, etc.). The twine must be tied off at all start and end points.

Appendix 3

8. In mobile homes with soft drop or paper rodent barrier, belly patching is to be stapled using an outward clinch stapler at a minimum 2” (inches) apart around the entire perimeter of patch and covered with mastic. (patch must not bend, sag, or move once installed)

9. All recessed light fixtures are to be boxed in with an airtight rigid barrier enclosure (such as sheet rock; minimum 5/8”) as part of the attic infiltration measure.

10. Flag all J-boxes and install insulation depth markers every 300 sq. ft.

11. All exhaust fan vent pipes are to be insulated with R-11 batt insulation and secured with twine.

12. Exhaust vent screen openings are to be no smaller than ¼” and not larger than ½”.

13. Sheet metal patches on mobile home roofs are to be sealed and secured to the existing roof before installing insulation board.

14. When installing Mobile Home Exterior Roof Insulation; only one (1) rubber membrane is to be used on single wide and two (2) rubber membranes on double wide mobile home is to be used. No patching pieces together.

15. Only metal sweeps secured with screws are allowed for mobile home duct end blocking.

16. Allow time for mastic to dry before reinstalling duct registers.

17. Only metal ducting is to be used when replacing mobile home cross over duct unless otherwise specified in the scope of work

18. When duct sealing existing flex duct; the inner sleeve of flex ducting is to be sealed with mastic to the hard pipe connections and secured with a tie-strap.

Then also secure the outer sleeve to hard pipe connection.

19. Condensation Lines in crawlspace (both site-built and mobile homes) will be extended to the outside.

20. No changes or variations will be made to the Scope of Work or dwelling without obtaining prior approval from CCWX.

21. ALL DOCUMENTS GENERATED BY CCWX NEED TO BE REVIEWED, SIGNED AND RETURNED WITHIN FIVE BUSINESS DAYS.

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