Our house (end stone cottage, next to another cottage with a barn on the
other end) has been much colder this year than last - to the extent that it
just doesn't get warm in cold windy weather even with the heating on full.
Nothing seems to have changed since last year, except when I put my head
into the loft the other day the wind was literally howling around the roof
Now, the roof looks fine from the outside and there are no leaks (as far as
Is it normal to have wind whistling through the loft (it hasn't been like
that in any other houses I have known, but this has a shared roof space with
next door - doesn't extend to the barn)?
What could be causing it? How do I find where it's coming from? We're
That doesn't actually help much if there is a howling gale blowing over
and through it..
Sounds similar to my heap - old solid-stone walled house with a tiled
roof. From inside the loft you can see all the tiles - no lining.
It doesn't let water in, but enough wind works its way under the slates
to produce a howling gale inside, when a good one is blowing outside.
Simple test - take a thermometer and push it vertically through the
insulation, one cm at a time and get the temperature profile. Repeat
when the howling gale is blowing. If it has changed dramatically, you
know what the problem is.
My solution was a few rolls of "anti-weed" sheet - the sort you put
under paths to stop stuff growing up through from underneath. Laid over
the (thick) insulation, it keeps the air in the insulation trapped and
still lets any chance of any condensation or other nasties going on
underneath. Result! I used a battery plastic bag sealer to join adjacent
panels together, BTW. Cheaper and easier than tape.
It is still bloody cold in the loft and the wind still howls - but a
thermometer pushed into the insulation shows near enough the same
temperature profile when the wind is blowing as it did when it wasn't.
Which is a pretty linear decrease in temperature, dropping sharply over
the last cm.
Oh, never insulate under the water tank....but do put a "wall" of
insulation around its bottom - to stop too much heat simply being blown
out from under..
Oh, isn't living in an old house fun!
On Wed, 12 Mar 2008 23:09:11 +0000, Palindrome wrote:
=================================A nice selling point - a flying carpet in the loft.
I agree with your point about measuring temperature differentials. I've
currently got two dual reading thermometers in place - simultaneous
indoor / outdoor readings. One has the exterior sensor dangling out of a
window and the other has the exterior sensor threaded through a small hole
in the loft cover and hanging over a rafter in the loft. Wind (rarely a
gale) certainly makes a difference and I'm trying to work out just how
much extra insulation I need to ensure nil heat loss if that's possible.
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