In masonry, which joint type is primarily used in areas prone to severe weather conditions?

The concave joint is primarily used in masonry in areas prone to severe weather conditions because its design facilitates water drainage. The rounded shape of the joint allows any moisture that infiltrates the masonry wall to flow away from the wall surface, thus helping to prevent water from pooling and causing damage over time. This type of joint is effective in minimizing the risk of water penetration, which is crucial in regions that experience heavy rain or snowy conditions.

Additionally, the concave joint offers a tighter seal compared to other joint types, contributing to the overall durability of the masonry while minimizing the likelihood of water finding its way into gaps. This makes it a preferred choice in regions that suffer from extreme weather, ensuring the longevity and integrity of masonry structures.

Other joint types, such as raked, flush, and struck joints, do not provide the same level of protection against water infiltration, making them less suitable for severe weather conditions.