Roof Hatches on Houses? More Common Than You Think

https://www.scribd.com/document/422658205/263707-Little-Changes-That-ll-Make-a-Big-Difference-With-Your-roof-hatch

Skylights, Roofing Windows, Attic Ladders, Terrace Windows: FAKRO has become the most vibrant as well as fastest growing firm of skylights and also attic ladders in the world. In order to fulfill our own high requirements,