iTP Powerlon UltraBlock 200, 1.6x50m = 80m²


Reflective Vapour Control Layers

Reflective Vapour Control Layers (VCL) for all roof and wall applications.

Reinforced polyethylene membrane incorporating an energy-saving thermo-reflective surface.

Multipurpose membrane: air barrier + thermo-reflective + vapour control layer.

Impermeable air barrier to increase air-tightness and increases energy efficiency by reflecting heat back into the building.

Prevents moisture within the building envelope from reaching the insulation layer and forming interstitial condensation.


Available for delivery direct from the manufacturer with an approx. lead time of 2-3 days.

Additional information


1 to 3 working days

SKU: ITPPUBLK200 Categories: ,
Product ex-VAT inc-VAT  
iTP Powerlon UltraBlock 200, 1.6x50m = 80m² £70.52 £84.62

Availability Indicators

iTP Powerlon UltraBlock is sent direct to site from the manufacturer and is subject to the iTP Membranes shipping charge.

Reasonable stock levels are held with delivery lead times being around 2-3 working days.

iTP reserves the right to change stocked products - while we will do all we can to keep on top of changes, availability and lead times my vary.

  • Generally 1 to 3 working days for delivery
  • Generally 1 to 5 working days for delivery
  • Generally 5 to 10 working days for delivery
  • Special request or made to order item, allow extended lead times. Minimum order levels may apply.
  • Please call to check availability and approximate lead times

Delivery charges will be calculated at check-out. Please visit our Ordering From Us page for further details on minimum order levels and delivery charges. If you have any queries, please do not hesitate to contact me via our Contact Form or on 01903 899 898.

Product Application

Thermo-reflective vapour control layer for roof and wall applications

iTPs high performance vapour control membrane, Powerlon UltraBlock, is suitable for use in all roof and wall applications.

Product Make-up

Core: Powerlon UltraBlock is a thermo-reflective reinforced vapour control membrane incorporating encapsulated aluminium foil or metallised barrier layers.

Product Performance

  UltraBlock 200 UltraBlock 300
Tensile Strength MD 185 / XD 184 MD 290 / XD 300
Nail Tear Resistance MD 120 / XD 160 MD 140 / XD 230
Temperature Range -40 to +70 °C -40 to +70 °C
Water Vapour Resistance > 630 Mns/g > 25,000 Mns/g
Thermal Reflectivity 0.64 0.54
Emmisivity 0.36 0.46
UV Resistance 3 months 3 months