Owens Corning

Easy, fast, simple alternative

DUCTS IN CONDITIONED SPACE

Meet the performance targets for ducts in conditioned space1, without time-consuming changes and extra cost.1

The ProPINK™ High-Performance Buried Ducts System enables builders to deliver noticeably better comfort and low lifetime operating costs for homes with ducts in the attic. Using a quick, simple process, it’s designed to help builders meet the standard for ducts in conditioned space without the additional cost and complexity of converting to a sealed, spray foam insulated attic.

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Seal, Surround and Save in front of a fully insulated attic

Why Buried Ducts?

A Simple Solution with Big Benefits


Meets Performance Requirements

Meets performance targets for ducts in conditioned space.1

Enhances Home Comfort

Contributes to comfort and energy-efficiency for the homeowner.

Little to No Added Costs

Save thousands compared to other methods.2

Aligns to Contractor Practices

Easy to execute with minimal training.

Options for Vented and Unvented Attics

Adapt to the needs of the job.

Helps Earn Tax Credits

Helps builders meet requirements for 45L tax credits.1

Man blowing insulation over and around ducts in an attic

Tax Credits for Builders

Helping you get to 45L

The ProPINK™ High-Performance Buried Ducts System includes insulated ducts, installed close to the ceiling in a vented attic and covered with loosefill fiberglass insulation. This simple, cost-effective solution meets the performance targets for ducts in conditioned space and can help builders quality for 45L tax credits.2

Learn about 45L Tax Credits

PROPINK Buried Duct System

Three Simple Steps

With just three simple steps, it’s a quick, easy method to meet the performance targets for ducts in conditioned space without time-consuming changes or added costs.

Step 1

SEAL

Air seal ducts and registers to ACCA standard3

Simple, ANSI-approved process with tape and mastic

  • Reduces air loss through ducts
  • Guards against condensation
  • Quickly achieves tight ducts with low leakage to outside (LTO). 

Step 2

Surround

Cover ducts with blown-in fiberglass insulation

Simple process and depth flags for fast and efficient install

  • Consistent temperature of supply air in every room
  • HVAC system works better, runs less
  • Up to 90% less temperature loss across 40' duct run4


Step 3

Save

Reduce HVAC system size and cost

Savings offset nominal cost of sealing and additional insulation

  • $2000 / home savings (Up to 2 ton avg. reduction)5
  • Low operating costs for life of home


HOW-TO VIDEO

BURIED DUCTS 101

Learn the basics of how to install the buried duct system. See the process in action and discover how to meet the performance targets for ducts in unconditioned space in just three simple steps.

Expert Resources

Get Started

Partially insulated attic with insulation being blown in around ducts

Train Your Team

Connect with the Owens Corning training team to get up to speed with everything you need to start installing buried ducts.

Close-up of insulation being blown in around the edge of an attic

Find an Installer

Find a highly qualified insulation contractor near you to help you achieve your efficiency goals.

Attic showing buried ducts with several inches of insulation on top

Understand IRA Tax Credits

Learn about tax credits available to builders and contractors under the Inflation Reduction Act. 

1 When installed as directed, this High-Performance Attic assembly achieves performance path targets equivalent to the DICS standard.
2 Based on industry averages for SPF attic applications.
3 Air Conditioning Contractors of America (ACCA): For buried duct systems in climate zones that require a sealed/unvented attic, add diffusion port fabric at the roof ridge.
4 Based on actual test home installation of buried ducts vs. traditional attic – 2024.
5 Based on Wrightsoft Manual J modeling for 1,700 sq ft home in CZ 2 conducted by third party, August 2024.