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.
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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Delivery options are only available for delivery to mainland UK (excluding Scottish Highlands, Scottish Islands, Channel Islands, Isle Of Man Northern Ireland and Eire). Delivery to Scottish Highlands, Scottish Islands, Channel Islands, Isle Of Man, Northern Ireland and Eire are limited to 20kg and are available at a Premium rate. Please contact us on firstname.lastname@example.org or via our help line if delivery is required outside these areas. Alternatively select ‘World-wide Delivery’ and a member of our sales staff will contact you regarding your options and costs.
We offer for the mainland UK , as standard, a FREE delivery service on all orders having a value greater than £200.00 (excluding VAT). For orders having a value less than £200.00 (excluding VAT) a carriage fee of £8.50 + VAT will be levied. Goods will be sent by a national carrier on their 1-2 working day standard service. Customers must understand that delays can always happen while their order is with the courier, for this reason we can not guarantee your order will be with you next day.
It is important that the customer ensures that all the delivery details are correct and that the customer or someone acting for the customer is able to sign for the delivery. Twistfix accept no liability for failed deliveries as a result of incorrect delivery details or the absence of any authorised signatory. Twistfix will attempt delivery to the recipient between the hours of between 8am and 6pm. If no one is available to receive the delivery an attempt may be made to leave the item with a neighbour. Alternatively the carrier may return the item to the sorting office and leave a calling card at the recipient's address to advise of the attempted delivery. It is the responsibility of the customer to arrange to collect the item from the depot or to arrange re-delivery with the carrier. Further information regarding Delivery can be read at our Terms & Conditions.
Items returned and received in their original condition and packaging within 14 days of delivery will be accepted for exchange or refund subject to a 20% restocking fee. You will be responsible for the shipping costs incurred in returning the goods and should ensure the items are adequately insured while in transit to us. You should email email@example.com to request to return items.
Where the goods are being returned because they are faulty or are not the goods that were ordered then, subject to the goods being returned in re-saleable condition, Twistfix will refund the cost of return shipping. Further information regarding Returns can be read at our Terms & Conditions.