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Old 02-02-09, 05:08 PM   #3
ftumsh
Lurking Renovator
 
Join Date: Feb 2009
Location: Yorkshire, England
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Quote:
Originally Posted by Daox View Post
Hello John and welcome to ER! Glad to see another project going.
You're welcome. Thanks for the quick reply!
The sudden interest in this is because my central heating packed up
the other day and I'm still waiting for a new part for the fan. I've fixed
it temporarily, all very heath robinson. The upshot is I can hear the fan
starting up and it seems to do it too often.
That and the last quarters gas and leccy bill came to 380 GBP. ie best part
of 550 USD.

Quote:
Originally Posted by Daox View Post
Do you have a ridge vent there? Its hard to tell.
No. No ridge vents at all, just a vent in each eave (I have a gable end)
that runs the length of the eave.

Quote:
Originally Posted by Daox View Post
I'd recommend adding in that 50mm vent space all the way to the peak. Then, I'd insulate the back side of that vent all the way and encase the entire room.
I don't quite follow. I was going to put board between the rafters and I presumed (heh) that they wouldn't join at the peak. ie there'd be a gap at the
ridge. So, say it's twelve foot from the ridge to the gutter, for example,
I'd start the board a foot from the ridge and finish it a foot from the gutter.
I thought the theory was that hot warm air gets into the loft (obUS: attic)
and would need a gap at the ridge to allow it to flow down to the eaves.
Or something.
I'm guessing obv, not having a clue

What do you mean by "back side of the vent?"

John
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