08-20-2018, 11:50 AM
Cracking occurs when an external wall is repeatedly wet and dried in an exposed environment.
If the wall cannot be protected against rain or other water sources then a penetrating water repellent sealer can be applied over the surface. Sealer will stop the wall from absorbing water; however it will not impede its ability to breathe. The breathability of earth walls is essential, or the risk of deterioration (due to the accumulation of trapped moisture within) is too great. Any surface application of a water repellent sealer or dust binder must not interfere with the permeability of the wall.
If the wall cannot be protected against rain or other water sources then a penetrating water repellent sealer can be applied over the surface. Sealer will stop the wall from absorbing water; however it will not impede its ability to breathe. The breathability of earth walls is essential, or the risk of deterioration (due to the accumulation of trapped moisture within) is too great. Any surface application of a water repellent sealer or dust binder must not interfere with the permeability of the wall.