RJH wrote:
On 10 Mar 2020 at 12:13:24 GMT, "Harry Bloomfield, Esq."
wrote:

A friend has a 1960's chalet style semi-house, where the first floor
bedrooms are always cold. Gutters are at ground floor ceiling height.
End brick wall goes up to roof and is CWI. Upper floor windows are set
in the roof slope and have no internal cills. There is CWI at front and
rear, up to roof gutter/roof level.

There is no insulation at front, or rear, between plasterboard wall and
angle of tiled roof, which makes the place drafty, cold and expensive
to heat.

Why draughty? That'd be one of the first things to fix.

That is good advice.

Decent double glazing also makes a big difference.

The house I mentioned had metal, single glazed, windows when we bought it.
Having modern, quality, uVPC double glazing fitted made a huge difference.