They should be above grade, below grade or filled with mortar.
Weep holes in masonry veneer help to prevent water buildup and moisture damage by allowing water to drain out, reducing the risk of mold, mildew, and deterioration of the structure.
drainage
Masonry weep holes in a building's structure serve the purpose of allowing water to drain out of the wall system, preventing moisture buildup and potential damage.
Weep holes in a stone masonry retaining wall should be strategically placed at the bottom of the wall, typically every 4 to 6 feet apart, to facilitate proper drainage. They should be located above the base of the wall to prevent soil erosion and should be sloped towards the exterior to allow water to escape efficiently. Additionally, weep holes should be sized adequately to prevent clogging while allowing for effective drainage of accumulated water behind the wall.
To drill weep holes, first, select the appropriate drill bit size based on the desired hole diameter. Mark the locations where the holes will be drilled, ensuring they are positioned at the lowest points to allow drainage. Use a masonry or wood drill bit, depending on the material, and drill at a perpendicular angle to create clean holes. Finally, clear any debris from the holes to ensure proper drainage.
Weep holes are typically located at the bottom of the window frame to allow water to drain out. In garden windows, weep holes may be found underneath the window sill or along the sides of the frame to prevent water accumulation and maintain proper drainage.
Weep holes do not lead to the interior of the house.
Regularly checking and maintaining retaining wall weep holes is important to prevent them from becoming clogged because clogged weep holes can lead to water buildup behind the wall, causing pressure that can damage the wall or lead to collapse.
Weep holes in a shower pan serve the purpose of allowing water to drain out and prevent pooling or standing water, which can lead to mold, mildew, and damage to the shower structure.
It is to drain residual liquid left in piping.
Weep holes are small openings in building structures that allow water to drain out. They are important in construction because they help prevent water from accumulating and causing damage, such as mold growth or structural deterioration.
Basement weep holes are small openings in the foundation walls of a basement that allow water to drain out. They help prevent water damage by relieving hydrostatic pressure, which can build up behind the walls and cause leaks or flooding. The weep holes allow water to escape, reducing the risk of water seeping into the basement and causing damage.