Porotherm in depth

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The Porotherm MW (mineral wool filled) range is the simplest way to achieve a high standard in your wall structure. A single leaf (monolithic) wall built with our Porotherm T7 MW 365 (365mm wall thickness) will produce a U-value of 0.18W/m2K! Wet plaster inside and render externally straight on to the blocks. Also it will give you an incomparable, comfortable living environment with low heating costs. Get your quote by sending your inquiry by email to office@clayblock.ie or ring us on 087 7745465 ... See MoreSee Less

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2 months ago

Clayblock Ireland

Advantage of single leaf clay block wall

youtu.be/sJNidAC-W6oInvesting in a single-leaf wall construction with clay blocks pays for itself. Porotherm and Poroton by Wienerberger, the best choice for a safe and healthy ...
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Porotherm in depth


  • clay-block-in-depthIn comparison to traditional block work, Porotherm® construction uses around 95% less water. In a sample 212m² building project, concrete blocks will require 1060 litres of water compared to just 72 litres for the poroton system
  • The system takes less time to achieve a watertight shell thus accelerating the project schedule
  • The external skin can be removed from the critical path to allow parallel working of internal trades and external finishes


  • Clay block fasterWith no mortar needed in vertical joints and a minimal 1mm bed joint, the Porotherm® system rises rapidly. An average of 30-40m² per man per day is easily achievable, much faster than traditional masonry or Aircrete Blockwork.
  • The Porotherm® system is capable of being built to storey height in one day!
  • Upper floors can be placed without the need for normal backing up so the external envelope can be completed more quickly
  • While surpassing masonry structures for fire-resistance, longevity and sustainability, Porotherm® construction can be even faster than timber frame construction—with the added benefit of allowing parallel working for internal and external trades earlier in the programme
  • Our thin bed mortar can be used from 0 degrees Celsius or above, this means that the projects can gain days/weeks in advance scheduling during winter months which would otherwise be lost by using traditional masonry.