Powerlon Ultrablock 200 Thermo Reflective VCL – 1.6m x 50m Roll

Powerlon Ultrablock 200 Thermo Reflective VCL is a multi-purpose reinforced vapour control layer and air barrier designed to improve airtightness, control water vapour and contribute to the thermal performance of insulated building constructions.

Part of the Powerlon Ultrablock range, this high-performance VCL incorporates a metallised thermo-reflective barrier layer which reflects radiant heat back towards the building interior. When installed correctly as part of an insulated construction, the reflective surface can help improve overall energy efficiency and reduce unwanted heat loss.

Installed on the warm side of the insulation, Powerlon Ultrablock 200 helps protect insulation and other building components from interstitial condensation while simultaneously forming an impermeable air barrier.

Supplied in a 1.6m x 50m roll, each roll provides up to 80m² of coverage.

What is Powerlon Ultrablock 200 Used For?

Powerlon Ultrablock 200 is a multi-purpose VCL suitable for insulated building envelope applications where effective vapour control, airtightness and thermo-reflective performance are required.

Typical applications include:

• Insulated roof constructions
• Wall applications
• Ceiling applications
• Timber frame construction
• Vapour control applications
• Airtightness systems
• Thermo-reflective insulation systems
• Residential and commercial buildings

The membrane should be installed on the warm side of the insulation to control the movement of warm, moisture-laden air into colder areas of the building construction.

Thermo-Reflective Vapour Control Layer

Powerlon Ultrablock 200 incorporates a thermo-reflective surface designed to reflect radiant heat back towards the interior of the building.

The membrane has a thermal reflectivity of 0.64 and thermal emissivity of 0.36, allowing the reflective barrier to contribute to the thermal performance of an appropriately designed construction.

This makes Powerlon Ultrablock 200 more than a conventional polyethylene VCL, combining vapour control and airtightness with the additional benefits of a reflective barrier layer.

Helps Prevent Interstitial Condensation

Vapour control layers are installed on the warm side of insulation to restrict the movement of water vapour into colder areas of the building fabric.

Without effective vapour control, moisture can condense within insulated roofs, walls and ceilings, potentially reducing insulation performance and causing moisture-related problems within the building envelope.

Powerlon Ultrablock 200 helps minimise the risk of interstitial condensation by controlling vapour movement through the construction and helping protect the insulation.

Air Barrier for Improved Airtightness

In addition to functioning as a VCL, Powerlon Ultrablock 200 acts as an impermeable air barrier.

When membrane joints, overlaps, edges and penetrations are correctly sealed, it helps create a continuous airtight layer and reduce uncontrolled air leakage through the building envelope.

Improved airtightness can reduce unwanted heat loss and contribute towards the energy efficiency of the completed building.

Reinforced VCL Construction

The Ultrablock range consists of reinforced thermo-reflective vapour barriers, providing additional strength for demanding building envelope applications.

Powerlon Ultrablock 200 combines this reinforced construction with its reflective barrier layer to provide a durable, multi-purpose membrane suitable for professional roof, wall and ceiling installations.

Key Features and Benefits

• Thermo-reflective VCL: Reflective surface helps reflect radiant heat back towards the building interior
• Multi-purpose membrane: Combines vapour control, air barrier and thermo-reflective functions
• Improves airtightness: Helps reduce uncontrolled air leakage through the building envelope
• Controls water vapour: Helps restrict moisture movement into insulated construction
• Condensation protection: Helps minimise the risk of interstitial condensation
• Warm-side installation: Designed for installation on the warm side of insulation
• Reinforced construction: Provides additional strength and durability
• Thermal reflectivity: 0.64
• Thermal emissivity: 0.36
• Lightweight membrane: 103gsm construction
• Large roll coverage: 1.6m x 50m roll provides up to 80m²
• Silver/transparent finish: Reflective barrier construction for insulated building applications

Powerlon Ultrablock 200 Product Specification

Why Choose Powerlon Ultrablock 200?

Powerlon Ultrablock 200 Thermo Reflective VCL provides three important building envelope functions within a single reinforced membrane: vapour control, airtightness and thermal reflectivity.

Installed on the warm side of insulation, it helps protect the construction against interstitial condensation while its impermeable construction helps improve airtightness. The metallised reflective surface also reflects radiant heat back towards the building interior, contributing to the energy-efficient performance of an appropriately designed insulated construction.

With 80m² of coverage per 1.6m x 50m roll, Powerlon Ultrablock 200 provides a practical multi-purpose VCL for residential, commercial and professional building applications.