Thermafleece Tfloc VSD Membrane, 1.5×16.7m = 25.05m²


Airtight barrier and vapour control layer for use on walls and roof linings

Suitable for installation on the warm side of the insulation in wall and roof lining applications.

Intelligent high performance airtight membrane with a variable surface diffusion that allows the membrane to act as an effective vapour control layer whilst enabling two way movement of vapour for effective moisture management.

Reinforced for increased tear resistance.

Easy to handle and install without gloves or protective clothing.

Installed with the printed side facing into the building or the fibrous side facing the insulation/out of the building.


Available for delivery direct from the manufacturer with an approx. lead time of 3-5 days.

Additional information


1 to 5 working days

SKU: TFLCTVSD025 Category:
Product ex-VAT inc-VAT  
Thermafleece Tfloc VSD Membrane, 1.5×16.7m = 25.05m² £108.38 £130.06

Availability Indicators

Thermofloc VSD Membrane is sent direct to site from the manufacturer and is subject to the Thermafleece Insulation & Membranes shipping charge.

Reasonable stock levels are held with delivery lead times being around 4-5 working days.

Thermafleece 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

Airtight vapour control layer for walls and roof linings

Thermofloc VSD membrane is suitable for use in walls and roof linings as an intelligent vapour control layer.

Product Make-up

Core: Thermofloc VSD Membrane is a non-woven polypropylene membrane that adapts its vapour resistance with changes to heat and moisture levels (winter/cold = high vapour resitance, summer/heat = low vapour resistance).

Product Performance

Tensile strength MD 350 / CD 315 EN 12311-1
Tear resistance MD 350 / CD 375 EN12310-1
Resistance to water penetration Class W1 EN 1928