Why are the roofs of some houses blown off during a wind storm?

Explanation

The roofs of the huts or houses were designed with a slope as shown in Figure.

During cyclonic condition, the roof is blown off without damaging the order parts of the house. In accordance with the Bernoulli's principle, the high wind blowing over the roof creates a low-pressure `P_(1)`. The pressure under the roof `P_(2)` is greater. Therefore, this pressure difference `(P_(2)-P_(1))` creates an up thrust and the roof is blown off.