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Klober Ltd offers a range of products to prevent excessive condensation forming in a roof void, through ventilation or by use of an air open or vapour permeable underlay that allows the structure to breathe. Klober’s Permo Air, an ‘open air’ membrane, has been accepted by the NHBC to use without the need for additional high level ventilation. We also offers a combined air barrier and vapour control layer that can be used to help minimise uncontrolled ventilation through the building fabric.

Klober also offers specialised products supporting the Solar Panels on the roof by giving options of how to penetrate the roof to allow cables whilst being airtight and watertight. In addition other products include non-vented underlays, roofing snow safety products and coloured flashings. Klober will always strive to be ahead in innovative ventilation products to meet Building Standards and customers’ needs. Additional services we offer are 2 CPD presentations, one being ‘The Code on Sustainable Homes and Air Tightness in Roofs’ and on-site/in-house training on Dry-Fixing, Airtightness and Practical Roofing. Klober supports and works alongside training colleges whilst being one of the main sponsors at Skillsbuild for the last 5 years.
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Featured Downloads

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Product catalogue
Assessing the implications of 2016 amendments to BS 5534
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Technical data sheet
Permo air, air-open roofing underlay - details of all aspects of technical performance.
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Technical data sheet
Technical data sheet for Permo extreme RS SK2 type HR roofing underlay with self-adhesive edge ta...
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Easy-Form® Tape
Multi-functional highly flexible roofing tape.
- H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H64 Wood shingle and shake roofing, H65 Single lap roof tiling, H67 Metal single lap roof tiling, J41 Reinforced bitumen membrane roof coverings
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Klober 10K Slate Vent
In addition to roof space ventilation at high or low level, with an adaptor pack, the UV resistant polypropylene 10K Slate Vent can also be used for soil ventilation or mechanical extraction.
- H62 Natural slating, H61 Fibre cement slating
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Klober 3-in-1 Eaves Vent Pack
The Eaves Vent Pack is an all-in-one eaves ventilation system comprising of rafter trays, fascia vents and underlay support trays.
- H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling

Image gallery

Air barrier used for striking zinc-clad self-build
Airtightness tapes in BREEAM Excellent project
Airtightness tapes, sealants and collars
Easy-Form lead-free flashing
Klober airtightness products put to the test
Klober at the Building Centre

Quality Assurance

Klober Ltd is certified to the following Quality Assurance schemes/standards:
BS EN ISO 9001: 2008 – IAB
BBA Certificate 00/3749 – Roof tile underlays in non-ventilated cold pitched roof systems
BBA Certificate 02/3895 – GRP flashings
BBA Certificate 02/3958 – Permo Frame breather membrane
BBA Certificate 07/4435 – Permo Air LR open air undertiling membrane
BRE Certificate: 105/03 – Sepa forte roof underlay
BRE Certificate: 119/06 – Sepa Light roofing underlay
BBA Certificate 99/3622 – 99/3622 Permo roof tile underlays

Trade names

Permo Air
Permo Forte
Permo Frame
Permo Light
Permo Sec

Contact details

Unit 6F,
East Midlands Distribution Centre,
Short Lane,
Castle Donington,
Derbyshire, DE74 2HA
Tel +44 (0)1332 813050
Fax +44 (0)1332 814033

Alternative contacts

Sales Office
Tel +44 (0)800 783 3216
Technical Department
Tel +44 (0)1332 813 051
Fax +44 (0)1332 814 003

Additional links

The following external links have been provided by the manufacturer: