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Insulation

$0.25 - $0.30 per square foot

Insulation is one of the easiest, most cost-effective ways to make your property more comfortable year-round. Insulation helps maintain a uniform temperature in the property, keeping units warmer in winter and cooler in summer.

To get started on your energy-efficient upgrade follow the steps below or contact a program representative.

  1. Establish your eligibility.

    Read More >
    • Property’s heating must be provided by Portland General Electric or Pacific Power; or provided by NW Natural, Cascade Natural Gas or Avista.
    • Cash incentives are available to all Oregon multifamily attached residential properties with two or more units including: duplexes, triplexes and fourplexes; side-by-side units; and stacked structures with five or more units. For specific incentives based on your building type see the “Details” tab for further eligibility requirements.
    • Energy-saving improvements must meet program requirements.
  2. Find a trade ally contractor or work with your own contractor.

    We can help you get started.

  3. Install equipment that meets the requirements listed on the Details tab.

  4. Submit documentation.

    • A W-9 or Substitute W-9 form is required for investment properties.
    • Energy Trust must receive applications within 90 days from the date of purchase and installation.
  5. Get your incentive.

    You should receive a cash incentive check within 6-8 weeks after all information is received.

    Note: A post-installation verification may apply for all equipment not installed by a licensed contractor. A post-installation verification may also be performed if your incentive amount is $3,000 or more.

Projects must be installed in accordance with the specifications outlined in the Existing Multifamily Weatherization Specifications Manual.

For all property types* Incentive Requirements
Attic/Ceiling Insulation $0.25 per installed sq ft

Electric or gas heated building. Existing condition: R-18 or less.

Retrofit requirements: R-49 or fill attic space

Flat Roof Insulation $0.30 per installed sq ft

Electric or gas heated building. For buildings up to 3 stories.

Existing condition: R-5 or less

Retrofit requirements: R-20 or greater

For Side-by-side, Duplex, Triplex and Fourplex properties only* Incentive Requirements
Floor Insulation $0.30 per installed sq ft

Electric or gas heated building.

Existing Condition: R-11 or less
Retrofit Requirements: R-30 or fill cavity

Wall Insulation $0.30 per installed sq ft

Electric or gas heated building.

Existing Condition: R-4 or less
Retrofit Requirements: R-11 or fill cavity; all heated exterior wall surfaces must be insulated.

Knee Wall Insulation $0.30 per installed sq ft

Electric or gas heated building.

Existing condition: R-4 or less
Retrofit requirements: R-15 or greater for 2×4 cavities; R-21 or greater for 2×6 cavities
Must have vapor-permeable air barrier

Rim Joist Insulation $0.30 per installed sq ft

Electric or gas heated building.

Existing condition: R-4 or less
Retrofit requirements: R-15 or greater

For Stacked structures with 5 or more units only** Incentive Requirements
Floor Insulation $0.30 per installed sq ft

Existing condition: R-11 or less
Retrofit requirements: R-30 or fill cavity

*Eligible projects for Portland General Electric and Pacific Power customers with electric heat and eligible projects for NW Natural, Cascade Natural Gas and Avista customers with natural gas heat.

**Eligible projects for Portland General Electric and Pacific Power customers with electric heat.

Pipe insulation Incentive Requirements
Gas Boiler Pipe Insulation - Low pressure steam (<15 psig) $4 per linear foot

≤ 1.5” pipe diameter, 1.5” min. insulation thickness
> 1.5” pipe diameter, 2” min. insulation thickness

Batt insulation does not qualify for an incentive.

Domestic Hot Water Pipe Insulation $4 per linear foot

Central gas-fired recirculation systems only
≤ 1.5” pipe diameter, 1.5” min. insulation thickness
> 1.5” pipe diameter, 2” min. insulation thickness

Batt insulation does not qualify for an incentive.

Incentives are subject to funding availability and may change.

Need Help? Contact Us.

We’re here to explain the process and benefits. Give us a call at 1.877.510.2130 or send us an email at multifamily@energytrust.org.