autoclaved concrete: AAC disadvantages
Autoclaved Aerated Concrete (AAC) can be an excellent wall construction material in some climates. This page lists some of AAC disadvantages adn requirements.
See also: AAC Advantages
Pollutants and energy
AAC (Autoclave Aerated Concrete, Cellular Concrete or Porous Concrete) are chep and flexible wall construction blocks. They are an alternative to common masonry and other concrete materials or more recent wall construction materials like ICF and SIPs.
Aerated Concrete do not generate pollutants or negative wastes during manufacturing, but the autoclave process demands large amounts of energy. That’s AAC main environmental disadvantage.
See: Concrete construction and Environment
Lower Insulation performance than other newer construction materials
When compared with common block and porous concrete, AAC is an energy-efficient choice, though not as performing and advantageous as construction materials like SIP Panels and ICF Forms...
Finishings
AAC blocks and panels are easily damageable when exposed to water and other natural loads. Adequate finishings are required, namely high permeable exterior finishings and low-vapor permeable interior finishings...
See also: