Occasionally, my long time interest in History and my job intersect. Here is a news story that does. The headline “Top Secret Documents found in roof at Bletchley Park”, so I naturally read the article. Bletchley Park during WWII was a great part of the secret war effort by Great Britain against Germany. It was run by His Majesty’s Government Code and Cypher School, to read coded German messages. It is named for the landed estate it was located on and has been turned into a museum. Location. This is about 60 miles or 100 km NE of London center near the M1.
The connection to Energy Efficiency is these documents were found stuffing into openings in the roof of ‘Hut 3’ The huts were quickly built barracks type structures built early in the war, and did not have many amenities, even for the time. Things like insulation, central heating, or probably much in the way of wall board on the inside. So these buildings leaked. I would guess these very smart, talented folks working in Hut 3, didn’t know much about energy efficiency. They did know when they were uncomfortable and could feel the wind blowing through the cracks and crevices.
So they took what ever was handy and stuffed the cracks full to stop the wind. Today we call that air sealing. These are the guys that invented some of the first computing machines. The solution was, like many of the wartime efforts, not the most elegant, but it worked.
If you would like some help locating the air leaks in your home, give me a call. I’ll use a Blower Door and a computer that is a descendant of those in Bletchley Park.