[gleeaikin]

And attics can be deathtraps for flooding and storm surges if one does not go up there with a sledge hammer and a saw to cut through the roof.

[Spktyr]

Or install openable skylights or vents before the issue ever arises. Don’t need to desperately bash your roof open with a sledge or axe if you can just slide a bolt and open the skylight.

http://www.crystaliteinc.com/_photos/Skylights_Standard_Opener/venting-skylight%20(3).jpg

https://www.youtube.com/watch?v=01CL9oTGkwI

There are some really fancy ones now: https://i.pinimg.com/736x/b2/26/1e/b2261e68121a6a34398d1372d2724053—window-company-window-types.jpg