On 16/06/2014 13:43, Martin Brown wrote:
On 16/06/2014 13:01, Rick Hughes wrote:
A couple of years back I posted a question .. didn't get very far,
thought I'd try again.

I have a modern highly insulated 2 storey house, and this time of year
the upstairs get very hot .... and with high values of insulation it
does not cool quickly ... bedrooms are very hot.

That isn't right then. Is it ingress of heat from the roof or trapping
heat in the rooms from the sun coming through the bedroom windows?


Heat from downstairs rises .. so all heat gain during day ... ends up
'upstairs' even though Pilk-K glass used throughout, still a lot of
heat gain.

You can feel significant difference walking form downstairs to upstairs
.... only when it has been really hot day .. and house been soaking up sun.

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UK SelfBuild: http://uk.groups.yahoo.com/group/UK_Selfbuild/