After a harrowing nine-month stint in space, NASA astronauts Sunita Williams and Barry ‘Butch’ Wilmore are finally ...

It really works well for those kinds of situations," says Shahan. See the full story on Dwell.com: How They Pulled It Off: A Secret Stair Hatch That Seals Off the Living Space ...

For hatch and knee-wall doors ... While you're at it, don't forget to seal the door gaps with weather stripping. Read the original article on House Digest.