Source: Régie du bâtiment du Québec
The iron ocher causes several problems affecting buildings. Indeed, she is: iron ocher.
The iron is present naturally in soil. It is doncocre ferrous and very difficult pipes eliminate it. Same by replacing the soil to the periphery of building, the iron from surrounding soils migrate again towards the drain of the property by natural water runoff.
To prevent the development of the bacterium, should make them disappear from soil the two natural elements that are water and air, what is impossible. It is therefore not conceivable to prevent the chemical reaction that creates the ferrous ocher.
Can be prevented iron ocher before or after construction.
The vigilance is required if there are precursors signs like the presence, after a rain, of reddish water in ditches or in surface. During the construction of a property, it is recommended to carry out upon neighbors and of the municipality a background check the sector concerning the risk of ocher training ferrous.
A assessment of current conditions should be carried before proceed with the construction. This evaluation, performed by a professional, will establish:
The result of this assessment will the contractor to construct the building avoiding effects of training iron ocher. The adaptations may touch the following elements:
If the location of the construction remains at risk, it is recommended to develop two chimneys cleaning order to allow cleaning the drain if necessary.
The vigilance is required if there are precursors signs such as a significant moisture in the basement rate, a recent flood or the presence of reddish water in ditches or surface after a rain.
The possible improvements to existing buildings to mitigate the symptoms of iron ocher patches vary by location. They may require:
Example patch proceeding by outside Example patch proceeding by inside.
The Régie du bâtiment du Québec (RBQ) recommends to new buyers as well as homebuilders to inform themselves with the municipality to verify if the location of the future house is conducive to formation of iron ocher. The case applicable, preventive measures may be taken.
The RBQ remind you that we can not prevent the training process iron ocher. She recommends owners struggling with this problem to consult a professional or a contractor holding an appropriate license, who may avoid or in minimize the effects.