exterior stone walls in gardens, terraces or entrances can give a house an important aesthetic and functional value. However, exposure to environmental factors can adversely affect the appearance and durability of this type of material.
The stone from the external works, including those made industrially, is prone to damage due to the absorption of water through the porous areas. This not only encourages the growth and spread of unsightly mold stains, but also helps to cause cracks in the filtered water to freeze.
Regular cleaning reduces the chances of fungi and other microorganisms settling and spreading on joints and surfaces of the body. stone walls.
For this job you can use a stiff brush to remove dirt from surfaces. If the dirt is very dirty, it can be washed with household detergent and then rinse well with water.
In the stone walls Outdoor which are already affected by mold or algae, they must be thoroughly cleaned with a fungicide. Then continue rinsing with a high pressure hose to remove any residue that may remain on the surface.
Now, this is just a solution that will need to be applied more or less frequently, depending on local environmental conditions.
waterproofs exterior stone walls can be a good measure to prevent mold, cracks and leaks. Applying a quality water repellent can go a long way in extending the lifespan and aesthetics of those walls.
Paint shops and other construction-related businesses offer different products that can be applied to waterproofing stone.
Outdoor stone walls: waterproofing
The most practical option is a silane / siloxane impregnation. This fulfills its function of insulating against moisture without changing the color of the stone and allows the mortar in the joints to «breathe» without difficulty.
«Breathing» means the possibility of moisture being absorbed into the outside.
These products also prevent dirt and dust from settling in the pores exterior stone walls.
Waterproofing can be applied with a brush, roller or spray gun. In all cases, it is recommended to mask what surrounds the wall. Nearby plants and lawns should also be covered with tarpaulin or plastic to prevent damage or killing of chemicals.
Then apply a first coat of waterproofing to create a primer that will help better secure a second coat. The latter will spread on the surface stone wall after the expiration of the time recommended by the product manufacturer.