Codes
Features

Features Overview

Reference.
A reliable and up-to-date source of codes.

Research.
Rapidly and efficiently calculate project parameters.

Collaboration.
Get everyone on the same page and streamline code research.

Workflows

Architects

General Contractors

Building Official & Plans Examiners

Inspectors

Owners

Subcontractors

Code Consultants
Pricing
Login
Sign Up

Upgrade to Premium

Code calculators: Code Calculators automatically generates a detailed list of requirements.

REFERENCE

Amendment Styling

Industry-leading search

Code diagrams

RESEARCH

Code calculators

Filter by topic

Code compare

Code sheet exports

COLLABORATION

Team projects

Bookmarks

Comments

START 2 WEEK FREE TRIAL

Have an account? Sign in

// CODE SNIPPET

N1103.3.1 (R403.3.1) Insulation (Prescriptive)

Residential Code 2018 of Kansas > 11 [RE] Energy Efficiency > N1103 (R403) Systems > N1103.3 (R403.3) Ducts > N1103.3.1 (R403.3.1) Insulation (Prescriptive)

JUMP TO FULL CODE CHAPTER

Supply and return ducts in attics shall be insulated to an R-value of not less than R-8 for ducts 3 inches (76 mm) in diameter and larger and not less than R-6 for ducts smaller than 3 inches (76 mm) in diameter. Supply and return ducts in other portions of the building shall be insulated to not less than R-6 for ducts 3 inches (76 mm) in diameter and to not less than R-4.2 for ducts smaller than 3 inches (76.2 mm) in diameter.

Exception: Ducts or portions thereof located completely inside the building thermal envelope.

Related Code Sections

N1103.3.1 [RE] Energy Efficiency, (R403.3.1) Insulation (Prescriptive)

Supply and return ducts in attics shall be insulated to an R-value of not less than R-8 for ducts 3 inches (76 mm) in diameter and larger ...

Residential Code 2018 of Kansas > 11 [RE] Energy Efficiency > N1103 (R403) Systems > N1103.3 (R403.3) Ducts > N1103.3.1 (R403.3.1) Insulation (Prescriptive)

R403.3.1 [RE] Residential Energy Efficiency, Insulation (Prescriptive)

Supply and return ducts in attics shall be insulated to an R-value of not less than R-8 for ducts 3 inches (76 mm) in diameter and larger ...

Energy Conservation Code 2018 of Kansas > 4 [RE] Residential Energy Efficiency > R403 Systems > R403.3 Ducts > R403.3.1 Insulation (Prescriptive)

R403.3.1 Foundations, Foundations Adjoining Frost-Protected Shallow Foundations

Vertical wall insulation and horizontal insulation of frost-protected ...

Residential Code 2018 of Kansas > 4 Foundations > R403 Footings > R403.3 Frost-Protected Shallow Foundations > R403.3.1 Foundations Adjoining Frost-Protected Shallow Foundations

R402.1 [RE] Residential Energy Efficiency, General (Prescriptive)

INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENTa CLIMATE ZONE FENESTRATION U-FACTORb SKYLIGHTb U-FACTOR GLAZED FENESTRATION SHGCb, e ...

Energy Conservation Code 2018 of Kansas > 4 [RE] Residential Energy Efficiency > R402 Building Thermal Envelope > R402.1 General (Prescriptive)

N1102.1 [RE] Energy Efficiency, (R402.1) General (Prescriptive)

zone specified in Section N1101.7. TABLE N1102.1.2 (R402.1.2) INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENTa CLIMATE ZONE ...

Residential Code 2018 of Kansas > 11 [RE] Energy Efficiency > N1102 (R402) Building Thermal Envelope > N1102.1 (R402.1) General (Prescriptive)

Shared projects

Projects provide a dedicated space to collaborate on code research.

Code Compare

Highlight differences between any two building codes.

Search

Don't miss relevant code. Quickly locate sections across your jurisdiction.

Code sheet exports

Generate a code sheet that integrates with your drawing set.

Code diagrams

Unpack the code through illustrations and descriptions.

Code Calculators

Code calculators automatically generate a detailed list of requirements.

UpCodes Premium

Leverage the most sophisticated code compliance platform.

TRY FREE FOR TWO WEEKS VISIT PRICING