Question

In rainy season dampness spreads on wall why​

Answer 1

Answer:

Many exterior paints used on buildings are permeable and allow water to seep from the exteriors of your house to the interior walls. ... The terrace is exposed to harsh weather conditions and water easily accumulates on the surface resulting in leakage and damp patches on the interiors

Explanation:

Answer 2

Many exterior paints used on buildings are permeable and allow water to seep from the exteriors of your house to the interior walls. ... The terrace is exposed to harsh weather conditions and water easily accumulates on the surface resulting in leakage and damp patches on the interiors.