Infiltration of water in the building
The infiltrations of water in a building are the most detrimental problems for the structure and enjoyment of the premises. The building envelope, with its vertical and horizontal sealing layers, is the line of defense against water infiltration.
In addition to the deterioration of the structure, water infiltration can cause problems with masonry mechanical detachment, the bulging of bricks, the recess of mortar joints, the formation of molds and the appearance of carpenter ants who are looking for a humid place.
Two types of water infiltration
There are two types of water infiltration, namely a direct, like a hole in the envelope that allows water to enter directly inside or a crack in the wall of foundations. The second type is a problem indirectfor example, the water that runs behind the bricks and does not find its way to evacuate outside. Due to the lack of weeds, the water remains trapped at the base of the siding and eventually deteriorates the wood through the absorption of materials and capillarity.
Infiltration of water in the basement
In fact, it is the subsoil that is the most vulnerable place to water infiltration and the causes are multiple:
- French drain clogged or improperly installed;
- Cracks in the foundation walls;
- Deficiency in the seal at the junction between the foundations and the base;
- Deficiency in the seal at the junction between the exterior cladding and the foundations;
- Poorly sealed around the doors and windows;
- Presence of deficient holes and sealant joints in the building envelope;
- Non waterproof roof, etc.
A slope of suitable ground around the building, the quality of the external drainage, the presence of weep at the base of the exterior siding and above the openings, regular maintenance of the joints and flashings in the building envelope are all factorsavoid water infiltration.
To determine the causes and source of the water seepage, the engineer conducts a visual inspection and testing at locations suspected of providing a waterway into the building. These tests are as follows:
- A leak test that consists of watering the outside of the areas studied with a garden hose and / or a high-pressure electric sprayer;
- Moisture tests in materials using a moisture sensor;
- Detection of insulators or wet materials behind finishes using an infrared camera for the purpose of capturing images;
- Exploratory cuts to affected areas for condition checking of building materials as required.
If damage is noticed (appearance of molds harmful to health, weakening of the building structure, etc.), we will inform you of the seriousness of the situation and the appropriate remedial measures to be taken.