img(height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=2939831959404383&ev=PageView&noscript=1")
  1. Products
  2. Roofing

Air-open underlay for ventilation performance

Klober Permo air offers an exceptional level of breath-ability to prevent condensation

In association with
Klober has launched an air-open underlay for ventilation performance.
Klober has launched an air-open underlay for ventilation performance.

For new builds, particularly with complex roof designs, underlay performance is put under greatest strain during the critical drying out period. This variable performance of vapour permeable underlays has led to the decision by the NHBC and the BSI that only air-open membranes can be used without supporting high level ventilation. Klober Permo air prevents condensation forming in the roofspace by offering an exceptional level of breathability. Its water vapour transmission sd-Value is 2736 g/m2/day and its water vapour resistance (which has been tested by the BBA) confirmed to be as low as 0.03 MNs/g. As a result, it has also been specified for roofing upgrades of many high profile and historic buildings. 

Permo air is used for both cold and warm roof installations and not only avoids the additional cost of supporting ventilation but interruptions in the roof line caused by traditional tile or slate vents. Being manufactured from polypropylene, it is also fully recyclable.

  • Klober's air-open underlay for ventilation performance.
    Klober's air-open underlay for ventilation performance.
  • Klober's air-open underlay for ventilation performance.
    Klober's air-open underlay for ventilation performance.
12

For more information and technical support: klober.co.uk

 

Contact:

Klober@yourresponse.co.uk

 

Latest

Rural sole practitioner Daniel Mattholie of Dig Architects talks through the specification choices and costs relating to Hillside, his low-impact home at Millbrook in Cornwall

Daniel Mattholie of Dig Architects on the specification choices and costs of his low-impact Cornish home

The Luxembourg-born architect had an incisive wit and could be uncompromising in the pursuit of his ideas – an approach exemplified by his masterplanning of the Dorset new town Poundbury – but he was also a man of warmth and generosity

The Luxembourg-born architect's incisive wit and uncompromising approach belied his generous nature

In a historic neighbourhood in Nanjing, China, architects have developed a tailored method to urban renewal, focusing on restoring the traditional street pattern and community participation rather than conserving prominent structures

In a historic Chinese neighbourhood, architects have focused on restoring the traditional street pattern and community participation.

The RIBA president elect and founding partner of Weston Williamson reports from a recent visit to a boutique hotel he designed in Spain, which provides a variety of courses and cultural activities

The RIBA president elect reports from a recent visit to a boutique hotel he designed in Andalucia

On a local project to extend and rationalise a 16th-century building that was once an alehouse, the Hertfordshire practice overcame challenges posed by previous piecemeal additions to create a remarkable old-meets-new home

A 16th-century home that was once an alehouse gets a remarkable old-meets-new makeover