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Roof Refurbishment
A wide range of decking materials may be encountered on existing buildings due to be refurbished. Whilst most can be accommodated, on no account should strawboard or chipboard be considered as suitable materials for mechanical attachment. It is likely that their replacement will be required in any case, due to deflection and/or softening.
Where mechanical attachment is proposed, the fastener manufacturer SFS intec Ltd must undertake pullout tests to establish the level and consistency of restraint provided by the existing deck. Due to potential deterioration from moisture and the difficulties of determining the nature and stability of an existing deck, Sarnafil Technical Advisers give specification advice.
When upgrading thermal insulation or installing a tapered insulation scheme, consideration should be given to the raising of upstand heights to achieve a minimum 150mm height above finished waterproofing level.
© 2006 Sarnafil Ltd. Legal Disclaimer
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