Sunday, March 16, 2014

Windows in a Tiny House

Blogging is a great way to clarify your thinking.  It also provides a feedback loop.  One commenter on the Small Cabin Forum wisely advised "having a window or two" in a loft.  It makes sense that a loft window will help ventilate the tiny house during the hot summer season.

It might sound dreamy to have an entire tiny house built of windows, especially if you're fortunate to be situated in a scenic setting.  However, if you have spent any time in a greenhouse, even in the winter, you quickly realize why that would be a very bad idea in almost any setting.  Like many things, windows are a tradeoff.  More windows means more airflow, more sunlight, and a better view.  It also means more passive heating.  Solar builders recommend limiting the window glazing to just one-sixth of the south wall in order to provide the required "thermal mass" to retain heat.

More windows means less wall space too.  This is an important concern for a tiny house.  Along the long wall I would have loved to install a gigantic bay window, but opted instead of a more affordable two- by four-feet slider model.  Smaller window means smaller curtains.  The modest dimensions of the window permit a table below, and maybe a knickknack shelf above.  And I cannot live without the loft, chair, and wood stove on the same wall.

The opposite wall does not have any windows.  It will get a small mirror to make use of reflected light.  The uninterrupted wall with the mirror hides a nearby garage which is not particularly sightly.   In general, homes should have windows on all faces, but for tiny houses I make an exception to this rule.  Most tiny houses are basically one big room and, if you think of it like that, most rooms do not have windows in all four walls.  The reason is space.  Having one or more uninterrupted walls permits greater flexibility for decor.  If security is a concern, I say install a peep hole, camera, or periscope.

Insist on energy efficient double-paned glass if you plan to use the house in the winter.  This weekend we installed the three windows in our tiny house, one in the loft and two at eye level.  Well, at least they are at eye level when seated.


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