Commercial Insulation

Shop Commercial Insulation for Australian Buildings

Commercial projects often require more than one type of insulation. An office fit-out may need acoustic batts within internal partitions, while a warehouse may require roofing blankets or reflective sarking as part of its metal-roof system. Some projects also require mineral wool or semi-rigid boards for particular construction applications. The most useful starting point is the building element being insulated, followed by its thermal, acoustic and other project requirements. Compare products that suit the intended application rather than choosing solely by price or the highest available R-value. For a broader explanation of insulation materials, performance and selection, read our commercial insulation guide.

Commercial Insulation Product Types

Acoustic Glasswool Batts and Rolls

Our commercial acoustic range includes Knauf Earthwool glasswool batts and partition rolls in thicknesses from 25mm to 110mm. These products are commonly used within suitable wall partitions and ceiling systems to contribute to acoustic performance. Commercial acoustic products vary in R-value, thickness, density grade, width, length and pack coverage. Compare these specifications alongside the requirements of the complete construction system. Explore our acoustic insulation range for additional options.

Rockwool and Mineral Wool Insulation

Our commercial range includes James HardieFire rockwool insulation in R1.7 60mm and R2.5 85mm options. Mineral wool products can be considered where particular thermal, acoustic or fire-performance characteristics are required. Fire-related classifications and performance depend on the specific product and tested construction system. Check the relevant technical documentation and project requirements before specifying insulation for fire-related applications.

Rigid and Semi-Rigid Insulation Boards

Rigid and semi-rigid boards are available for suitable commercial construction applications where product shape, dimensions and thermal or other performance characteristics are important. For example, the Fletcher FI32 semi-rigid insulation product listed in this range is available in 25mm boards measuring 1,200mm × 2,400mm, with ten boards covering 28.8m² per pack. Board materials and performance vary, so check the individual product specifications and approved applications before ordering. Compare more products in our insulation boards category.

Reflective Sarking and Roofing Blankets

Reflective sarking, including products such as Trade Select double-sided reflective sarking, can be used in suitable roof and wall systems according to manufacturer specifications. Roof blanket rolls, such as Knauf Earthwool R1.8 75mm roof blanket, provide bulk thermal insulation within compatible roof assemblies. Reflective thermal performance depends on the installed system, including required airspaces where applicable. Roof construction, vapour-control requirements and condensation management should also be considered before selecting a product. Browse our roofing blanket insulation range.

Commercial Insulation by Application

Different building elements and commercial spaces can require different insulation products. Typical applications include:

• Offices and meeting rooms: acoustic insulation within suitable partitions and ceiling systems to support sound control and occupant comfort.
• Schools and healthcare facilities: insulation selected for thermal comfort, acoustic separation and relevant project-specific requirements.
• Retail and hospitality venues: wall, partition and ceiling insulation where thermal performance or noise management is important.
• Warehouses and industrial buildings: suitable roofing blankets, reflective sarking and other insulation systems for large roof and wall areas.
• Specialised commercial applications: rigid or semi-rigid insulation boards where manufacturer documentation confirms suitability for the intended construction.

External walls, internal partitions, suspended ceilings, metal roofs and commercial floor systems can have different thermal, acoustic, fire and moisture requirements. Always match the insulation to the building element and specified construction system.

How to Compare Commercial Insulation Products

When comparing products in our commercial insulation range, check the following specifications:

• R-value: indicates thermal resistance. A higher R-value provides greater resistance to heat flow but does not indicate acoustic performance.
• Thickness: must suit the available cavity, framing or roof construction and the required performance.
• Dimensions: compare batt widths, roll lengths and board sizes with the intended installation area.
• Density: some acoustic products identify nominal density grades such as 11kg/m³ or 14kg/m³. Check the product specifications for the correct units. Density alone does not establish acoustic performance.
• Pack coverage: compare the square metres supplied per pack to calculate project quantities and overall material costs.
• Product documentation: review intended applications, installation requirements and relevant technical performance information.

Acoustic, Fire and Moisture Considerations

Acoustic Performance

Acoustic insulation can contribute to sound control within commercial wall, floor and ceiling systems. However, sound absorption and sound transmission are different performance measures. The finished result depends on the complete construction, including framing, linings, insulation, penetrations and junctions. Where acoustic separation is important, refer to the relevant system performance information.

Fire Performance

Commercial projects may have specific fire-performance requirements. Product classifications, test results and suitability vary between insulation materials and construction systems. Review the relevant manufacturer documentation and confirm project requirements with the appropriate building professional before ordering.

Moisture and Condensation

Condensation management depends on the complete roof or wall design, including climate, internal humidity, ventilation, vapour control and material placement. This is particularly relevant to metal-roof buildings and spaces with controlled internal temperatures. Check whether sarking is breathable or non-breathable and confirm that the proposed system suits the building design.

Commercial Insulation Prices and Project Quantities

Commercial insulation prices vary according to product type, R-value, thickness, density, dimensions, pack coverage and order quantity. Because different products cover different areas, comparing pack prices alone can be misleading. For products that meet the same project requirements, divide the pack price by its coverage in square metres to compare material cost per square metre. To estimate quantities, calculate the net area requiring insulation, account for openings and installation waste, and check the number of whole packs required. Allowances will depend on the product format and installation layout. For larger commercial projects, contact our team with your plans, product specifications or quantity schedule to discuss suitable options and project pricing.

Commercial Insulation Supply and Installation Enquiries

Order commercial insulation products online from the range above, or contact No Gap Insulation to discuss product selection, availability, quantities and delivery or collection options. If your project requires installation, contact our team to confirm service availability, project scope and scheduling. Correct installation is important for achieving the intended thermal and acoustic performance. Products should be installed according to manufacturer instructions and the applicable project requirements.

Commercial Insulation FAQs

What Details Should I Provide for a Commercial Insulation Quote?

Provide the building type, insulation application, approximate area, required R-value or thickness, relevant specifications, preferred products and project timeframe. Plans or a quantity schedule can also help our team understand your requirements.

Can I Use Different Insulation Products in the Same Commercial Building?

Yes. Commercial projects commonly use different insulation products for walls, partitions, ceilings and roofs. Each product and combination should suit the intended construction and project requirements.

Does a Higher R-Value Mean Better Acoustic Insulation?

No. R-value measures thermal resistance, not sound reduction. Acoustic performance depends on the insulation product and the complete wall, floor or ceiling system.

Does Commercial Insulation Automatically Meet NCC Requirements?

No. Building compliance depends on the applicable requirements and the performance of the complete construction. Product specifications and relevant system documentation should be checked as part of the project's compliance assessment.

How Do I Choose the Right Commercial Insulation Product?

Start with the application and project specification. Compare suitable products by R-value, thickness, dimensions, acoustic requirements, coverage and relevant technical documentation. Contact our team if you need help narrowing down the available options.