SHELL WORK
SPECIFICATIONS AND PROPOSAL
This Proposal is for provision of labor and materials for shell work in accordance with Federal Energy Efficiency Standards and Installation Methods. All materials used in provision of services must meet or exceed 10 CFR 440 Appendix A: “Standards for Weatherization Services”.
The Subcontractor agrees to provide the services and/or materials described in detail below:
- After gross air leakage (and ducts) are sealed, use the blower door and digital manometer to guide air sealing measures. The Blower Door Reduction Sheet must be used and submitted with the invoice when performing the following measures:
- Air sealing plumbing, electrical, and HVAC penetrations through ceilings, flooring and exterior walls with polyurethane foam
- Patch sheet rock on exterior wall to include tape and mud to a ready to paint finish
- Patch holes in flooring and ceilings using existing type materials if possible
- Install/replace exhaust vents and ventilation fans (any new wiring would require an electrical license)
- Wrap water heater tanks with external insulation blanket in accordance with the NC Weatherization Standards
- Use blower machine to insulate attics with insulation to R38 (R30 for select coastal areas) value using the manufacturer’s bag estimation method. The number of bags used must be included on the invoice submitted to the agency. Attics must contain depth makers, junction box flags, wind baffles, and an MSDS for the product.
- Use blower machine that is capable to dense pack sidewall insulation to a minimum density of 3.5 pounds per cubic foot of volume
- Insulate floors with fiberglass batt insulation to R-19 value
- Install opaque, 6 millimeter vapor barriers in crawl spaces. The seams of each piece must be overlapped 6 inches and sealed. The vapor barrier must extend 6 inches up the foundation wall and sealed with adhesive and tape
- Seal accessible ducts, returns, plenums, connections, and boots with mastic and mesh tape resulting in a reading of no more than one Pascal
- Insulate ducts located outside the condition space with R-8, foil-faced duct insulation
- Install low-flow showerheads
- Replace broken window panes
Insulation shall be evenly installed with no voids, gaps, misalignments, or compression issues. Precautions must be taken when insulating around or on electrical boxes and/or heat producing fixtures. Proper shielding, if necessary, may be installed (by others), prior to work by insulation contractor in order to properly insulate all areas. For attic insulation, all wall cavities and ceiling penetrations exposed to the attic may be capped (by others) prior to work by insulation contractor, and insulated over or filled with insulation to assure insulation is in direct contact with air barrier. Insulation amount shall be identifiable at most convenient attic access point. Upon completion, all jobs will be inspected by agency auditor to assure quality installation. Complete installation must include all labor and materials to perform services. Contractor shall provide details on each invoice listing actual square footage installed and actual materials used.
Contractor is responsible for leaving the job site clean and for hauling away job debris.
Project commencement and completion shall be accomplished within 10 working days of notice to proceed. Contractor must include permit fees (if applicable), sales taxes, labor and materials to complete project.
Subcontractor Compensation
______(Subcontractor) will be compensated a labor rate of Dollars and Cents ($ ) per man-hour. Typical crew size is persons.
Record the prices for installing insulation and vapor barrier in the chart above. The total per square foot price must be equal to the sum of the labor price and the material price. These price categories should be adequate for installing insulation in most weatherization situations. If a particular category will not apply, indicate by stating (N/A) “not applicable” in the price sections. Please avoid adding unnecessary price categories.
*Hourly labor rate cannot be charged for time spent installing insulation.
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(Title)
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If approved, this document will be attached to and become part of a vendor agreement.