Window Repair, Space House Tour | Ask TOH

Coming up on Ask This Old House

Mark explains how to make concrete; Tom replaces a broken pane in a basement window; in Future House, Ross travels to NASA Johnson Space Center to learn about the technology they use on the International Space Station to keep the astronauts alive.

How to Make Your Own Concrete

Mark explains the basics of making concrete.  

Where to find it?

Most concrete can be made using a premixed bag, like the one Mark demonstrated, which is manufactured by Quikrete.

For bigger jobs that require a lot of concrete, it’s cheaper to make the concrete yourself. The sand, aggregate, and Portland cement can all be found at masonry yards. 

Expert assistance with this segment was provided by MJM Masonry.

How to Replace a Broken Window Pane

Tom replaces a broken pane in a basement window.

Where to find it?

Tom demonstrated how to replace the pane of a single-pane basement window. His technique will only work with that type of window. For double- and triple-pane windows, the whole unit will need to be replaced.

The materials Tom used for this project, including the window glazing, glazing points, replacement glass, and glass cutters, are all available at home centers.

Future House | Living on the Space Station

Ross travels to NASA Johnson Space Center to learn about the technology they use on the International Space Station to keep the astronauts alive.

Where to find it?

Ross visited NASA Johnson Space Center in Houston, TX.

Expert assistance with this segment was provided by Scott Tingle, Captain Mike Foreman and NASA Johnson Space Center.

New episodes are available Sundays at 8pm Eastern on TOH.com, or check your local listings for a broadcast time near you.