It’s freezing cold across much of the United States. Are you wearing passive solar clothes to stay warm?

I know it sounds like an odd question. We tend to think of using solar design for houses, not clothes. I’ll explain.

If you know it’s a cold day, do you think about what you’re going to wear? Of course you do. You might wear several layers. The layering forms more tiny air spaces around you and increases the insulating effectiveness of your clothing. You might pick out dark colors. Even if you don’t think of this as “passive solar dressing,” it is. dark colors absorb the radiant energy from the sun better than light colors. I’m sure when you’re outside on a cold, but sunny day, you walk on the sunny side of the street to stay warmer than you’d be on the shaded side. Ah! Passive solar principles, again. It’s nothing more than proper insulation and receiving the free energy benefit from the sun. (more…)

When you get dressed in the morning, do you consider passive solar design principles? Probably not. At least not conciously. But I’ll bet you consider the weather as you choose what to wear? I do. If it’s going to be hot and sunny, I usually choose a light colored shirt that is made from a fabric that breathes.  Experience tells me to avoid black because it will soak up the sun’s heat and avoid a tightly woven fabric because it will trap air next to my skin and make me feel hotter. This is a principle of passive solar design that we use without even labeling it or thinking about it. And you can use these principles in your house design.

Metal roofs, now often referred to as “cool roofs,” can act like your light colored, open weave shirt and keep your house cooler in hot weather. They do this “passively”, that is they use no electricity in the process. Here’s why they work. In an article posted at Classic Metal Roofing Systems website, they list four energy benefits you’ll get with a metal roof. (more…)

    Passive solar design, green and sustainable building are not new inventions. Who would have thought that we would be returning to the house design principles of more than a century and a half ago?

    I was in San Diego recently and visited the part of town they call Old Town San Diego. I don’t think the buildings are the actual original structures, but they are reproductions that are authentic to the mid 1800′s. One house La Casa de Estudillo, is built in the Spanish Colonial style of the early California settlers. You can see from the photographs that it is built in a “U” shape with a covered veranda wrapping the inside of the “U”. In the center is an outdoor space that is planted and has a water feature in the center. (more…)

    Here’s the answer to yesterday’s Dream House Fumble question.

    House design mistakes are all around us. Unfortunately, we tend to look right by them. But I’m on a mission to point some of these out, just to raise the bar on what we “demand” of the marketplace in terms of house design. Often, the mistakes could have been easily avoided, if only someone bothered to think about what they were doing. Here’s the photo of DHF #2 again: (more…)