REFLECTIVE ROOF & BUILDING INSULATION

Air Bubble Insulation Sheets for Industrial Roofs and Buildings

MaruCool aluminium foil air bubble insulation sheets combine reflective foil surfaces with sealed polyethylene air-bubble layers to help reduce radiant heat transfer across metal roofs, industrial sheds, warehouses, PEB buildings, poultry sheds, dairy sheds, ceilings and wall assemblies.

These sheets are also known as aluminium foil insulation, aluminum foil insulation, reflective heat insulation or reflective thermal insulation. They are available in multiple thicknesses and bubble-layer configurations for new roofing systems and selected under-deck retrofit applications.

For factories, warehouses, PEBs, poultry sheds and commercial buildings across India

MaruCool aluminium foil air bubble insulation roll showing reflective surface and bubble-layer cross-section

PRODUCT OVERVIEW

Air Bubble Insulation at a Glance

MaruCool reflective bubble insulation is supplied in roll form for roof, wall, ceiling and under-deck applications. Product selection should consider the building type, roof assembly, installation position, available air space and required project performance.

Product Type

Reflective aluminium foil air bubble insulation sheet supplied in a lightweight roll format.

Core Material

Closed-cell, fibre-free polyethylene air-bubble layers designed for insulation assemblies.

Surface Facing

Reflective aluminium foil laminated on both sides to help control radiant heat transfer.

Available Thicknesses

Available in 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm and 20 mm variants.

Common Applications

Used across metal roofs, industrial sheds, warehouses, PEBs, poultry sheds, walls, ceilings and selected under-deck installations.

Selection Factors

Selection depends on roof type, air space, bubble-layer construction, moisture conditions, fire requirements and installation method.

Important: Reflective bubble insulation should be selected as part of a complete roof or wall assembly. Thickness alone should not be treated as the only performance criterion.

HOW IT WORKS

What Is Aluminium Foil Air Bubble Insulation?

Air bubble insulation is a lightweight thermal insulation material made from sealed polyethylene air bubbles laminated with reflective aluminium foil. It differs from ordinary packaging bubble wrap because it is designed as a building-insulation product with reflective facings and defined layer constructions.

In aluminium foil insulation, the reflective foil surface helps reduce radiant heat transfer, while the enclosed air bubbles create a trapped-air layer that helps slow heat movement through the assembly. Final performance depends on the complete roof or wall construction, adjacent air space, joint sealing and installation quality.

Reflects Radiant Heat

The low-emittance aluminium surface helps reduce radiant heat transfer from a hot roof towards the occupied area.

Uses Sealed Air Pockets

The polyethylene bubble core creates a lightweight trapped-air layer that helps resist heat movement through the roof or wall assembly.

Supports Continuous Coverage

Properly treated seams, edges and penetrations help create a more continuous insulation layer across the building envelope.

Technical principle: A reflective insulation surface normally performs most effectively when it faces an appropriate adjacent air space. The exact assembly should follow the product guidance and project requirements.

Diagram showing how air bubble insulation reflects heat away from a metal roof

BUILDING HEAT CHALLENGES

Roof and Building Heat Problems Reflective Insulation Can Help Address

Metal roofing can absorb solar heat and transfer it towards the building interior through radiation, conduction and convection. Correctly specified reflective insulation can help manage part of this heat-transfer path while supporting a more practical roof or under-deck assembly.

Excessive Radiant Roof Heat

Hot metal roofing can radiate heat downwards into factories, warehouses, sheds and occupied work areas.

Uncomfortable Indoor Conditions

Roof heat gain can contribute to hot zones and inconsistent thermal comfort inside large industrial and commercial buildings.

Higher Cooling Demand

Uncontrolled roof heat may increase dependence on ventilation, fans or mechanical cooling systems.

Condensation and Dripping Risk

Metal-roof assemblies may experience condensation under certain temperature and humidity conditions. Insulation, air sealing and ventilation should be considered together.

Difficult Existing-Roof Retrofits

Lightweight under-deck insulation can be considered where removing or replacing the existing roof is impractical.

APPLICATIONS

Where Air Bubble Insulation Sheets Are Used

MaruCool aluminium bubble insulation sheets can be specified for industrial, agricultural, commercial and building-envelope applications. Final product selection should consider the roof design, climate, installation position and operational requirements.

Air bubble insulation below an industrial factory roof

Factories and Industrial Sheds

Helps limit radiant heat transfer through metal roofing and supports improved thermal-comfort planning inside production and assembly areas.

Reflective bubble insulation for a warehouse roof

Warehouses and Logistics Buildings

Supports more stable interior conditions for workers, stored materials and warehouse operations exposed to roof heat gain.

Aluminium bubble insulation for a PEB metal roof

PEB and Metal Buildings

The lightweight roll format can be incorporated into suitable pre-engineered building roof and wall systems.

Air bubble insulation sheet installed in a poultry shed

Poultry Farms

Helps manage radiant roof heat in poultry sheds. Product selection should also consider ventilation, shed design and local climate.

Reflective roof insulation for a dairy cattle shed

Dairy and Cattle Sheds

Can help reduce radiant heat entering livestock shelters through exposed metal roofing and support better shed-comfort planning.

Reflective insulation sheet for a commercial building roof

Commercial and Institutional Buildings

Can be used within suitable roof, ceiling and wall assemblies for commercial buildings, institutions and multipurpose structures.

Under-deck air bubble insulation below an existing metal roof

Existing Under-Deck Roofs

Selected variants can be installed beneath existing roofs when roof removal is impractical, subject to structural and installation assessment.

Aluminium foil bubble insulation for walls, ceilings and HVAC ducts

Walls, Ceilings and HVAC Assemblies

May be incorporated into selected wall, ceiling, duct and temperature-control assemblies when correctly specified for the application.

Not sure whether your project needs Bubble, XLPE or Hybrid Insulation?

PRODUCT ADVANTAGES

Why Buyers Consider Reflective Heat Insulation

Radiant Heat Control

Reflective aluminium facings help reduce radiant heat transfer when used within a correctly designed roof or wall assembly.

Lightweight Roll Format

The product can be transported, handled and installed without the weight associated with many bulk insulation materials.

Fibre-Free Construction

Closed-cell polyethylene bubble layers provide a fibre-free format for common roof, wall and ceiling applications.

Multiple Layer Options

Single, double and multi-layer configurations support different building, roof and installation requirements.

Moisture-Resistant Materials

The foil and polyethylene construction does not readily absorb moisture, although joints and penetrations still require proper treatment.

Suitable for New and Existing Roofs

Different installation approaches can be considered for new roof construction and selected under-deck retrofit applications.

AVAILABLE VARIANTS

MaruCool Air Bubble Insulation Thickness and Layer Options

MaruCool offers reflective bubble insulation variants from 4 mm to 20 mm. Roll lengths and bubble-layer construction vary by product. Final specifications must be checked against the latest approved MaruCool technical data before publishing or ordering.

MaruCool air bubble insulation sheets available in multiple thicknesses

Product

Thickness

Bubble construction

Roll size

Selection context

MaruCool Basic

4 mm

Single bubble layer

1.25 m × 50 m

Compact reflective option for suitable roof, wall and ceiling assemblies.

MaruCool Single

6 mm

Single bubble layer

1.25 m × 50 m

Single-layer option where a moderate bubble thickness is required.

MaruCool Double

8 mm

Double bubble layer

1.25 m × 40 m

Double-layer construction for industrial, commercial and agricultural roof applications.

MaruCool Super

10 mm

Single bubble layer, according to current product information

1.25 m × 50 m

Larger single-layer construction for project-specific roof and building applications.

MaruCool Master

12 mm

Double bubble layer

1.25 m × 40 m

Thicker double-layer option for selected roof applications.

MaruCool Unique

14 mm

Three bubble layers

1.25 m × 30 m

Multi-layer construction for selected industrial and building-envelope applications.

MaruCool Elite

16 mm

Three bubble layers

1.25 m × 30 m

Higher-thickness multi-layer option for project-specific requirements.

MaruCool Premium

20 mm

Double bubble layer, according to current product information

1.25 m × 30 m

Highest currently listed thickness; final suitability must be confirmed for the exact roof assembly.

MaruCool Basic

Thickness: 4 mm
Bubble construction: Single bubble layer
Roll size: 1.25 m × 50 m

Compact reflective option for suitable roof, wall and ceiling assemblies.

MaruCool Single

Thickness: 6 mm
Bubble construction: Single bubble layer
Roll size: 1.25 m × 50 m

Single-layer option where a moderate bubble thickness is required.

MaruCool Double

Thickness: 8 mm
Bubble construction: Double bubble layer
Roll size: 1.25 m × 40 m

Double-layer construction for industrial, commercial and agricultural roof applications.

MaruCool Super

Thickness: 10 mm
Bubble construction: Single bubble layer, according to current product information
Roll size: 1.25 m × 50 m

Larger single-layer construction for project-specific roof and building applications.

MaruCool Master

Thickness: 12 mm
Bubble construction: Double bubble layer
Roll size: 1.25 m × 40 m

Thicker double-layer option for selected roof applications.

MaruCool Unique

Thickness: 14 mm
Bubble construction: Three bubble layers
Roll size: 1.25 m × 30 m

Multi-layer construction for selected industrial and building-envelope applications.

MaruCool Elite

Thickness: 16 mm
Bubble construction: Three bubble layers
Roll size: 1.25 m × 30 m

Higher-thickness multi-layer option for project-specific requirements.

MaruCool Premium

Thickness: 20 mm
Bubble construction: Double bubble layer, according to current product information
Roll size: 1.25 m × 30 m

Highest currently listed thickness; final suitability must be confirmed for the exact roof assembly.

Product names, layer configurations and roll dimensions should be confirmed against the latest MaruCool product data before final specification or ordering.

SELECTION GUIDE

How to Select Air Bubble Insulation Thickness

The correct insulation should be selected according to the complete roof or wall assembly rather than thickness alone. Consider the roof material, building use, available air space, installation position, fire requirements, condensation conditions and expected mechanical exposure.

4–6 mm

Compact Reflective Options

Can be considered where installation space is limited and the project requires a lightweight reflective insulation layer. Final suitability should be reviewed against the roof assembly.

8–10 mm

Common Roof and Shed Options

Can be evaluated for factory roofs, warehouses, PEB structures, agricultural sheds and general metal-roof insulation applications.

12–14 mm

Thicker Double or Multi-Layer Options

Can be considered where the design requires a thicker bubble construction or a different bubble-layer configuration.

16–20 mm

Project-Specific Higher-Thickness Options

Should be selected after reviewing the building use, roof geometry, installation method, structural clearances and complete assembly requirements.

Information Needed for a Product Recommendation

Share the following project details so the insulation variant can be reviewed against the building and installation conditions.

Building type

Roof material and profile

New roof or existing roof

Above-purlin or under-deck installation

Approximate roof area

Project city and climate

Available adjacent air space

Ventilation arrangement

Fire-performance requirement

Condensation or moisture concern

Required technical documentation

Project timeline

Need help comparing the available thickness and layer options?

TECHNICAL INFORMATION

Aluminium Foil Air Bubble Insulation Sheet Specifications

The following information summarises current MaruCool product details. Exact values, standards, test methods and applicable product variants must be verified against the latest approved technical data sheet and test reports before publishing or specification.

Property

Current Product Information

Verification Status

Product Form

Reflective insulation supplied in roll form.

General product description

Core Construction

Closed-cell, fibre-free polyethylene air-bubble layers.

Confirm against the latest product data sheet

Surface Facing

Reflective aluminium foil laminated on both sides.

Confirm foil specification by product variant

Available Thicknesses

4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm and 20 mm.

Confirm current product range

Standard Roll Width

1.25 m

Confirm against the applicable product variant

Roll Length

30 m, 40 m or 50 m, depending on the product variant.

Confirm before quotation or ordering

Aluminium Foil Thickness

Currently listed as 9 microns.

Verify before publishing

Reflectivity

Currently listed as 97%.

Verify product variant and test method

Emissivity

Currently listed as 3%.

Verify product variant and test method

Fire-Retardant Reference

Current product information refers to BS Part 6 and Part 7.

Verify the exact standard, classification, laboratory, report number and applicable product

Product Form

Current Product Information

Reflective insulation supplied in roll form.

Verification Status

General product description

Core Construction

Current Product Information

Closed-cell, fibre-free polyethylene air-bubble layers.

Verification Status

Confirm against the latest product data sheet

Surface Facing

Current Product Information

Reflective aluminium foil laminated on both sides.

Verification Status

Confirm foil specification by product variant

Available Thicknesses

Current Product Information

4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm and 20 mm.

Verification Status

Confirm current product range

Standard Roll Width

Current Product Information

1.25 m

Verification Status

Confirm against the applicable product variant

Roll Length

Current Product Information

30 m, 40 m or 50 m, depending on the product variant.

Verification Status

Confirm before quotation or ordering

Aluminium Foil Thickness

Current Product Information

Currently listed as 9 microns.

Verification Status

Verify before publishing

Reflectivity

Current Product Information

Currently listed as 97%.

Verification Status

Verify product variant and test method

Emissivity

Current Product Information

Currently listed as 3%.

Verification Status

Verify product variant and test method

Fire-Retardant Reference

Current Product Information

Current product information refers to BS Part 6 and Part 7.

Verification Status

Verify the exact standard, classification, laboratory, report number and applicable product

Technical values depend on the tested product and test method. Request the applicable MaruCool data sheet and test documentation for project approval.

INSTALLATION

Air Bubble Insulation Installation for New and Existing Roofs

Installation quality directly affects reflective-insulation performance. The material must be positioned, supported, joined and sealed according to the roof system, structural design and project requirements.

New Metal Roof or PEB Installation

The final layer position and fastening method should follow the approved roof build-up and structural requirements.

  1. Confirm the approved roof build-up and insulation position.
  2. Check that purlins and supporting members are ready.
  3. Roll the insulation across the structure in the approved direction.
  4. Maintain the required reflective-surface orientation and adjacent air space.
  5. Avoid unnecessarily crushing or compressing the bubble core.
  6. Maintain continuous coverage between adjoining rolls.
  7. Treat overlaps or butt joints according to the approved installation method.
  8. Seal seams and penetrations using compatible specified accessories.
  9. Protect the insulation from tearing during roof-sheet installation.
  10. Inspect the complete insulation layer before closing the roof.
Air bubble insulation installation below a new metal roof

Existing Under-Deck Installation

Existing roofs should be inspected before installation to identify structural, moisture and electrical risks.

  1. Inspect the existing roof structure and underside condition.
  2. Identify leaks, corrosion, damaged sheets and electrical hazards.
  3. Confirm the approved support and fastening method.
  4. Install the insulation below the roof while preserving the designed adjacent air space.
  5. Maintain continuous sheet coverage across the roof area.
  6. Seal joints, edges and penetrations correctly.
  7. Avoid unsafe contact with wiring, hot equipment and sharp structural edges.
  8. Do not obstruct required ventilation paths.
  9. Inspect the completed installation for sagging, punctures and incomplete seams.
  10. Use experienced installers for large industrial roof areas.
Under-deck aluminium bubble insulation below an existing industrial roof

Installation details vary according to roof type, structural system, wind conditions, building use and project requirements. Obtain a project-specific recommendation before ordering or installation.

PRODUCT COMPARISON

Air Bubble Insulation vs XLPE vs Hybrid Insulation

Bubble, XLPE foam insulation sheets and Hybrid insulation sheets (XLPE + Bubble) control heat in different ways. The correct choice depends on whether the project primarily requires radiant-heat control, closed-cell foam resistance or a combination of both.

Product Type

Main Construction

Primary Thermal Role

Common Applications

Consider When

Air Bubble Insulation

Reflective aluminium foil with one or more sealed polyethylene bubble layers.

Primarily helps manage radiant heat while providing a lightweight trapped-air layer.

Metal roofs, factories, warehouses, PEBs, poultry sheds, ceilings and selected under-deck retrofits.

A lightweight, fibre-free reflective roof or wall insulation system is required and the assembly provides appropriate installation conditions.

XLPE Foam Insulation

Closed-cell cross-linked polyethylene foam, commonly supplied with a suitable facing.

Provides bulk resistance to conductive heat transfer and supports moisture-control applications.

Roofs, ducts, pipes, walls, equipment and building-envelope systems.

The project requires a continuous closed-cell foam layer or greater bulk resistance to conductive heat transfer.

Hybrid Insulation

A combined reflective bubble and XLPE foam insulation system.

Combines radiant-heat control with closed-cell foam resistance.

Industrial roofs, warehouses, PEBs and project-specific building-envelope assemblies.

The project requires both reflective and bulk-insulation functions within one designed insulation system.

Air Bubble Insulation

Main Construction

Reflective aluminium foil with one or more sealed polyethylene bubble layers.

Primary Thermal Role

Primarily helps manage radiant heat while providing a lightweight trapped-air layer.

Common Applications

Metal roofs, factories, warehouses, PEBs, poultry sheds, ceilings and selected under-deck retrofits.

Consider When

A lightweight, fibre-free reflective roof or wall insulation system is required and the assembly provides appropriate installation conditions.

XLPE Foam Insulation

Main Construction

Closed-cell cross-linked polyethylene foam, commonly supplied with a suitable facing.

Primary Thermal Role

Provides bulk resistance to conductive heat transfer and supports moisture-control applications.

Common Applications

Roofs, ducts, pipes, walls, equipment and building-envelope systems.

Consider When

The project requires a continuous closed-cell foam layer or greater bulk resistance to conductive heat transfer.

Hybrid Insulation

Main Construction

A combined reflective bubble and XLPE foam insulation system.

Primary Thermal Role

Combines radiant-heat control with closed-cell foam resistance.

Common Applications

Industrial roofs, warehouses, PEBs and project-specific building-envelope assemblies.

Consider When

The project requires both reflective and bulk-insulation functions within one designed insulation system.

No single insulation material is universally suitable for every building. Selection should consider the roof construction, adjacent air space, climate, condensation risk, fire requirements, installation position and operational needs.

MARUCOOL INSULATION

Reflective Thermal Insulation for Industrial and Building Applications

MaruCool manufactures aluminium foil air bubble insulation sheets in multiple thicknesses and bubble-layer configurations for industrial, commercial, agricultural and building-envelope applications. Product selection can be reviewed according to the roof type, installation method and project requirements.

The available Bubble, XLPE and Hybrid insulation ranges allow buyers, contractors and consultants to compare different insulation approaches before final specification.

Multiple Product Variants

A range of thicknesses and bubble-layer configurations is available for different roof, wall and project conditions.

Application-Based Guidance

Product selection can be reviewed according to the building type, roof construction, climate and installation position.

Technical Documentation

Applicable product data and available test documentation can be requested for technical and procurement review.

Industrial and Agricultural Applications

The product range addresses factories, warehouses, PEBs, poultry sheds, dairy sheds and commercial roof applications.

Project Enquiries Across India

MaruCool supports insulation product and project discussions for buyers, contractors and consultants across India.

Complementary Insulation Products

Bubble, XLPE and Hybrid options allow project teams to compare reflective, foam and combined insulation systems.

MaruCool air bubble insulation manufacturing process
Quality inspection of aluminium foil bubble insulation
MaruCool reflective insulation rolls ready for dispatch

Share your roof and building details for an application-based product discussion.

DOCUMENTATION

Request Air Bubble Insulation Technical Documents

Project teams can request applicable product information for technical review, specification comparison and procurement. Document availability may vary according to the selected product variant.

Product Data Sheet

Request available information covering product construction, thicknesses, roll dimensions and applicable product properties.

Test Reports

Request available reflectivity, emissivity, fire-performance or other applicable test documentation for the selected variant.

Installation Guidance

Request available handling, joint-treatment and installation guidance for new-roof or under-deck applications.

Product Brochure

Request an overview of MaruCool Bubble, XLPE and Hybrid insulation products and application categories.

Document availability and test applicability may differ by thickness, construction and product variant. Confirm that any submitted document applies to the exact product being specified.

AVOID THESE MISTAKES

Common Mistakes with Reflective Bubble Insulation

Reflective insulation performance depends on product selection, assembly design and installation quality. Avoiding the following mistakes helps support a more consistent roof or wall insulation system.

01

Ignoring the Adjacent Air Space

Placing the reflective surface directly between solid layers without evaluating the complete assembly can reduce its intended radiant-barrier function.

02

Selecting Only by Thickness

A thicker product is not automatically the correct product. Bubble-layer construction, roof type, installation position and available air space also matter.

03

Crushing the Bubble Core

Excessive compression can reduce the trapped-air layer, damage the material and affect the intended assembly.

04

Leaving Joints Unsealed

Open seams, edges and penetrations can reduce insulation continuity and may contribute to air or moisture movement.

05

Using Unverified Performance Claims

Do not rely on generic R-values, fixed temperature reductions or energy-saving claims that are not based on the exact tested product and assembly.

06

Treating Every Roof the Same

New PEB roofs, existing metal sheds, poultry houses and commercial buildings may require different product and installation details.

Share your roof details before selecting a Bubble Insulation variant.

FREQUENTLY ASKED QUESTIONS

Air Bubble Insulation Sheet FAQs

Find answers to common questions about reflective bubble insulation, thickness selection, metal-roof installation, applications and technical documentation.

An air bubble insulation sheet is a reflective thermal insulation material made from sealed polyethylene air bubbles laminated with aluminium foil. The reflective surface helps reduce radiant heat transfer, while the bubble core provides a lightweight trapped-air layer.

No. Building-grade air bubble insulation uses reflective foil facings, defined bubble-layer configurations and application-specific product construction. Ordinary packaging bubble wrap is intended mainly for protecting goods during transportation.

The aluminium surface helps reduce radiant heat transfer from a hot roof, while the sealed bubbles provide a trapped-air layer. Performance depends on the roof assembly, adjacent air space, seam treatment and installation quality.

A reflective surface normally needs to face an appropriate adjacent air space to perform its radiant-barrier function effectively. The exact arrangement depends on the roof and installation design.

The current MaruCool range includes 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm and 20 mm variants. Bubble-layer construction and roll length vary by product.

There is no universal thickness for every metal roof. Selection depends on the building use, roof profile, installation position, climate, ventilation and available adjacent air space.

Selected variants can be considered for under-deck installation beneath an existing metal roof. The structure, fixing method, adjacent air space, ventilation and electrical safety should be assessed first.

It can be considered for factories, warehouses and industrial sheds where radiant roof heat is an important concern. Final performance depends on the complete roof construction and installation quality.

It can help manage radiant heat entering through poultry-shed roofs. Insulation should be planned together with ventilation, stocking conditions, water systems, shed design and local climate.

It can support condensation-control planning when used in a correctly designed and sealed assembly. It does not automatically eliminate condensation because humidity, air leakage, ventilation and thermal bridging also affect condensation.

Current MaruCool product information refers to fire-retardant performance and BS Part 6 and Part 7. The exact standard, classification and applicable product variant must be confirmed using the latest test report before specification.

Bubble insulation combines reflective foil and trapped bubble layers to help control radiant heat. XLPE uses closed-cell foam to provide bulk resistance to conductive heat transfer. Hybrid insulation combines both approaches.

MaruCool provides project-specific commercial quotations rather than publishing one standard rate. Share the required thickness or product variant, approximate quantity or roof area, application, delivery location, buyer category and required documentation so the team can prepare a relevant quotation.

Service life depends on installation quality, foil protection, physical exposure, roof leakage, damage and maintenance. Do not rely on a fixed lifespan unless it is supported by verified product documentation or warranty terms.

Use the project enquiry form and provide the building type, roof details, approximate area, city and preferred product thickness. MaruCool can then identify the relevant available product information and documentation.

Still unsure which insulation construction suits your roof? Share the application, roof type, approximate area and project location in the enquiry section below.

PROJECT ENQUIRY

Need the Right Bubble Insulation for Your Roof?

Share your building type, roof details and approximate area. MaruCool can help identify a suitable Bubble, XLPE or Hybrid insulation option for technical and commercial review.

Providing accurate project information helps the team review the application, available thickness options, installation method and required technical documents.

Prefer to talk directly? Call +91 93549 32117 or email marucoolteam@mppigroup.co.in.

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