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Buy low price INR 45 SQF External Roof Insulation panel at Wedge India to get best thermal comfort reduce temperature by 30 Degree C without damaging your roof ceilings interiors. 


Heat Insulation: Reduce Roof Temperature from 50 Degree C to 25 Degree C

Cold Insulation: Reduce heat loss and maintain 25 Degree C in rooms while external temperature is -50 Degree C.


What is External Roof Insulation?

External roof insulation, also known as "above-deck" insulation or "over-roof" insulation, is a method where insulation is applied on top of the existing roof structure rather than inside the attic or beneath the roof deck or ceilings.


Features and Benefits of External Roof Insulation:

Benefits of External Roof Insulation

  • Improved Thermal Performance: External insulation provides a continuous layer of insulation, minimizing thermal bridging that can occur with internal insulation methods.
  • Enhanced Energy Efficiency: Reduces heating and cooling loads by maintaining a more stable indoor temperature, leading to lower energy bills.
  • Protection of Roof Structure: Insulates and protects the roof structure from temperature extremes, reducing the risk of thermal stress and prolonging the lifespan of the roof.
  • Preservation of Interior Space: Since the insulation is added externally, it does not reduce the usable interior space of the building.
  • Moisture Control: Properly installed external insulation can help prevent condensation issues that may occur within the roof structure.


Wedge Insulated Roofing Materials for External Roof Insulation

Rigid Foam Boards

  • Types: Polyisocyanurate PIR Sandwich panel, and Closed Cell Extruded Polystyrene (Wedge CCXPS Panels).
  • Advantages: High R-value per inch, lightweight, moisture-resistant.
  • Applications: Commonly used in both residential and commercial buildings.


Wedge High Strength Mineral Wool Boards

  • Advantages: Fire-resistant, good acoustic properties, environmentally friendly.
  • Applications: Suitable for buildings requiring high fire resistance and soundproofing.


Wedge High Vacuum Insulated Panels (VIPs)

  • Advantages: Extremely high R-value in a thin profile.
  • Applications: Ideal for projects where space is limited and high insulation performance is required.


Wedge MgO Structural Insulated Panels (SIPs)

  • Composition: Foam core sandwiched between two layers of structural board.
  • Advantages: Provides both insulation and structural support.
  • Applications: Used in both roofs and walls for high-performance building envelopes.


Installation Process for Wedge External Roof Insulation


  • Inspection: Evaluate the existing roof condition and ensure it is structurally sound and free of leaks.
  • Cleaning: Clean the roof surface to ensure proper adhesion of insulation materials.

Installation of Vapor Barrier

  • Purpose: Prevents moisture from penetrating the insulation and causing condensation.
  • Material: Typically a polyethylene or bituminous membrane.

Installation of Insulation Boards

  • Method: Insulation boards are laid over the vapor barrier and secured using mechanical fasteners or adhesive.
  • Arrangement: Boards should be tightly fitted and staggered to minimize thermal bridging.

Installation of Waterproof Membrane

  • Purpose: Protects the insulation and roof structure from water ingress.
  • Types: Single-ply membranes (e.g., TPO, EPDM) or multi-ply bituminous membranes.

Finishing Layer

  • Protective Layer: Often a layer of gravel or pavers is added to protect the waterproof membrane and provide ballast.
  • Green Roofs: In some cases, a green roof system with vegetation can be installed over the insulation, providing additional insulation and environmental benefits.


Why Wedge CCXPS is better external roof insulation than EPS?

When considering external roof insulation, it's essential to compare Expanded Polystyrene (EPS) and Wedge Closed Cell Extruded Polystyrene (CCXPS) to determine which material best suits your needs. 

Composition and Manufacturing

EPS (Expanded Polystyrene)

  • Manufacturing: Made by expanding small beads of polystyrene in a mold using heat and steam, which causes the beads to fuse together and form a rigid foam.
  • Structure: Composed of numerous small, closed cells containing air.

Wedge CCXPS (Closed Cell Extruded Polystyrene)

  • Manufacturing: Created by melting polystyrene resin and extruding it through a die, which produces a continuous closed-cell structure.
  • Structure: Denser and more uniform closed-cell structure compared to EPS.


Key Properties

Thermal Performance

  • EPS: Generally has an R-value of about 3.6 to 4.2 per inch. The thermal performance can vary slightly depending on density and manufacturing.
  • CCXPS: Offers a higher R-value, typically around 4.5 to 5.0 per inch, providing better thermal insulation for the same thickness.

Moisture Resistance

  • EPS: More prone to water absorption due to its less dense structure, which can affect its thermal performance and structural integrity if exposed to moisture over time.
  • CCXPS: Superior moisture resistance with a water absorption rate typically less than 1%, making it more suitable for environments where moisture exposure is a concern.

Compressive Strength

  • EPS: Available in various densities with compressive strengths typically ranging from 10 to 60 psi, but generally lower than XPS.
  • CCXPS: Higher compressive strength, usually between 15 to 100 psi, which provides better durability and resistance to deformation under loads.

Durability and Longevity

  • EPS: Less durable due to its lower density and susceptibility to moisture absorption and physical damage.
  • CCXPS: More durable with a longer lifespan, better resistance to moisture, and higher structural integrity, making it a preferred choice for long-term applications.

Environmental Impact

  • EPS: Lower initial environmental impact due to the use of less energy-intensive manufacturing processes. However, recycling rates are relatively low.
  • CCXPS: Higher environmental impact during production due to the use of blowing agents with high global warming potential (GWP). Newer formulations have reduced GWP.

External Roof Insulation | Low Price CCXPS

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