Our 1930s house (standard front porch 3-bed bay windows) had a garage to
the side, with the garage roof sweeping up in line with the house roof
(so forming a very large bit of roof). I assume therefore that there
night have been a large attic space above the garage, or perhaps there
was no ceiling as such.
But I also assume there would have had to have been ceiling joists
anyway. But, how would these have been supported on the house wall side?
I've seen those galvanised cradles that a joist rests in, but presumably
they didn't use those in the 30s, am I right? In which case would the
builder have cut out half-brick sized holes to rest them on?
Since then (and before our time here) someone extended the property by
converting the garage to accommodation and adding a second story over
the garage. This is or the north side of a westerly-facing house.
Problem is that, when there's a strong cold westerly or northerly, this
new part of the house gets very cold. So I'm minded to wonder how the
cold air is getting in. One scenario is air under the house being forced
into the cavity wall (now entirely internal) that used to be an outside
wall, up and through the holes where the joists are, and into the
under-first-floor space. Is this sort of thing likely?
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