1. Thermadeck is the insulated version of Permadeck20

2. Ideal for THERMALLY UPGRADING flat roofs with poor or no insulation

3. Uses the existing roof as the lower layers of a modern ‘warm roof’ design

4. If used as an upgrade* to an existing domestic flat roof Thermadeck qualifies for ONLY 5% VAT

5. Saves disturbing the inside of the building

6. Cost effective: reduces heating costs, renews waterproofing and adds to property value

7. Efficient: most domestic work completed in ONE day

8. Can be grant assisted for qualifying applicants

If your house extension or dormer was built in the ‘50s,  ‘60s or ‘70s this is probably how it was made, there might even be NO INSULATION AT ALL:

Felt

Deck

Tapered firring

Joists

Thin glass wool insulation

Ceiling

This old design no longer complies with the Building Regulations and because of its poor insulation level can cost you far more to heat than a modern roof.     

Does your room feel cold or damp?    Is it hard to heat and quickly cools down?

Existing roof tidied and retained

New layers of THERMADECK®:

Permadeck on ply on insulation

See NOTES below.

THERMADECK comes in two standard grades, though we can vary the specification to suit unusual existing roofs:

THERMADECK 20/50:     50mm PUR insulation, 12mm ext wbp plywood, Permadeck 20. U-value depends on existing roof.

THERMADECK 20/90:     90mm PUR insulation, 18mm ext wbp plywood, Permadeck 20. U-value = 0.19

Both systems come with a 20 year Permadeck guarantee & may qualify for 5% VAT if upgrading an existing domestic roof.

NOTES.

1. THERMADECK adds to the height of the roof so fascias and gutters (if any) may need to be modified.  

2. 90mm PUR insulation is equivalent to 180mm of glass wool.  

3. THERMADECK can be used as a balcony surface.

THERMADECK® transformed this poorly insulated sun lounge.

THERMADECK® quadrupled the insulation levels on theses 1970s architect designed homes.

*Qualifies for 5% VAT if installation is to upgrade roofs with minimal or no insulation.  

Additional  works eg gutters, fascias, rotworks etc are subject to 15% VAT.

Existing roof

E&OE      The text and graphics of this website are Copyright © 1996-2010 all rights reserved by Seamless Roofing Ltd.  Permadeck, Thermadeck & Flexiroof are registered trade marks.  The contents of this website are subject to review and are a guide only and do not represent a binding offer. The BBA logo is Copyright © British Board of Agrément.

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