R1.5 Wall Insulation

Key Benefits of R1.5 Wall Insulation

Thermal performance — Helps reduce heat transfer through walls for improved indoor comfort. Acoustic performance — Selected R1.5 wall insulation products can also help reduce sound transfer between rooms. Multiple material options — Choose from glasswool and polyester insulation to suit different project requirements. Common framing sizes — Available in widths designed for common Australian wall-framing configurations.

Is R1.5 wall insulation sufficient for my home?

R1.5 wall insulation can be suitable for a range of internal wall and selected external wall applications, depending on the building design, climate zone and project requirements. For projects requiring greater thermal resistance, a higher R-value such as R2.0 may be more appropriate. Check your project's insulation and energy-efficiency requirements before selecting an R-value.

What size R1.5 insulation batts do I need?

Common R1.5 wall insulation batt widths include 430mm and 580mm, designed to suit common wall-framing configurations. Always measure your wall stud spacing before ordering and check the dimensions of the individual product to help avoid gaps or unnecessary compression during installation.

Can R1.5 insulation be used in existing homes?

Yes. R1.5 wall insulation batts can be used in new builds and existing homes where R1.5 insulation is appropriate for the wall application and project requirements. It's also an ideal opportunity to upgrade internal walls with acoustic insulation for a quieter, more comfortable living space. Need more information before choosing? Read our R1.5 wall insulation guide for a detailed look at R-values, applications and choosing the right insulation for your walls.

Ready to insulate smarter?

Browse our R1.5 wall insulation products above to compare brands, sizes, pack coverage and prices. Need help choosing the right product? Contact the No Gap Insulation team for advice based on your wall framing and project requirements.