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Breather Membrane 270gsm

Breather membrane 270gsm
Product code BM-ULTIMO-1X30
  • RRP £141.00
  • £105.00
  • £87.50
(51 items in stock)

Ultimo HS breather membrane has a fleece backing layer; it offers the unique ability to absorb large amounts of water vapour, at times of high humidity, and to release it in a measured effective way as humidity falls. The risk of condensation commonly associated with roof membranes is therefore virtually alleviated.

This high performance, multi-layer breather membrane is highly robust; it has more than twice the strength as standard breathable membranes. This practical benefit ensures extremely high nail tear and puncture resistance.

Ultimo HS is a heavyweight breather membrane that provides excellent performance, resistance to rainwater and high vapour per­me­abi­lity; it actually allows the roof to breath flexible. It is suitable for non-ventilated warm roof and ventilated cold roof systems as a supported or unsupported underlay for tiled and slated roofs. The membrane is manufactured by a glue-bonding process in which a po­lyp­ro­pyle­ne breathable micro-porous film is bonded together with po­lyp­ro­pyle­ne non-woven membranes to form a flexible sheet. As the membrane resists penetration of liquid water it may be used as a temporary wa­ter­pro­ofing prior to the introduction of slates or tiles.

  • High absorbency Breather Membrane
  • Outstanding Tensile strength
  • Extra­or­di­nary nail tear resistance and resilience to puncture
  • Easy-Trim cutting guide (Light Blue)
  • Roll size: 1m x 30m
  • Patented technology
  • BBA Certificate No. 09/4656
  • Weight: 270g/m²

Installed with the blue-printed side uppermost and lapped to shed water out and down the slope, the breather membrane can be installed without the need for ventilation provided that the roof construction remains air tight and convection free for the life of the structure. In cold non ventilated roofs NHBC section 7.2 prescribe 5mm continuous ridge ventilation. This may be achieved by using the Easy-trim dry ridge system.

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