ZeroPlus Mortar is a mix of fine-ground sand, cement and other ingredients specific to Porotherm use:

• Mixed locally to laying, it allows for thin joints which still achieve full strength after 24 hours
• Unlike traditional mortar, which is often limited to use only when the temperature exceeds 3°C, ZeroPlus is able to be used from 0°C, allowing constructors to minimise weather related delays
• Each 15kg pack requires just 3.6 litres of water and will lay 1 No. pack of blocks when applied by roller




Ian Butler, Boughton Butler Architecture
“Having tried other clay block systems we recognise that Porotherm is a first class product and the best on the UK market.  Boughton Butler specify Porotherm clay blocks for more and more projects as they achieve outstanding thermal performance combined with crucial thermal mass. On-site the project benefits from the fast construction, becoming water tight quickly and facilitating fo...
Ian Butler, Director of Architecture,
Boughton Butler Architecture

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