Hello,

It is been pretty warm in the loft conversion, much warmer than the
rest of the house.

I was removing some down lighters from the ceiling and looked up
through the hole and I cannot see any insulation. I mentioned in an
another post how this loft conversion has all the paperwork and yet
has all the power off a 13A fused radial. Is this another cut corner?
Surely they should have put some insulation somewhere?

I'm thinking that as well as being warm in the summer it is likely to
be cold in the winter. What is the best way to insulate: remove the
ceiling and put celotex between the joists?

I'm thinking this would be easiest as if I put celotex between the
rafters, don't I have to leave ventilation gaps, which seems to defeat
the purpose?

Thanks,
Stephen.

Stephen wrote in
:

Hello,

It is been pretty warm in the loft conversion, much warmer than the
rest of the house.

I was removing some down lighters from the ceiling and looked up
through the hole and I cannot see any insulation. I mentioned in an
another post how this loft conversion has all the paperwork and yet
has all the power off a 13A fused radial. Is this another cut corner?
Surely they should have put some insulation somewhere?

I'm thinking that as well as being warm in the summer it is likely to
be cold in the winter. What is the best way to insulate: remove the
ceiling and put celotex between the joists?

I'm thinking this would be easiest as if I put celotex between the
rafters, don't I have to leave ventilation gaps, which seems to defeat
the purpose?

Thanks,
Stephen.

There's a government scheme (paid for by the energy companies) to get it
done for free. Google Help-Link.

--
Jim S

On Tuesday, 30 June 2015 08:55:41 UTC+1, Stephen wrote:
Hello,

It is been pretty warm in the loft conversion, much warmer than the
rest of the house.

I was removing some down lighters from the ceiling and looked up
through the hole and I cannot see any insulation. I mentioned in an
another post how this loft conversion has all the paperwork and yet
has all the power off a 13A fused radial. Is this another cut corner?
Surely they should have put some insulation somewhere?

I'm thinking that as well as being warm in the summer it is likely to
be cold in the winter. What is the best way to insulate: remove the
ceiling and put celotex between the joists?

I'm thinking this would be easiest as if I put celotex between the
rafters, don't I have to leave ventilation gaps, which seems to defeat
the purpose?

Thanks,
Stephen.

If insulation

On 30/06/15 08:55, Stephen wrote:
Hello,

It is been pretty warm in the loft conversion, much warmer than the
rest of the house.

I was removing some down lighters from the ceiling and looked up
through the hole and I cannot see any insulation. I mentioned in an
another post how this loft conversion has all the paperwork and yet
has all the power off a 13A fused radial. Is this another cut corner?
Surely they should have put some insulation somewhere?

I'm thinking that as well as being warm in the summer it is likely to
be cold in the winter. What is the best way to insulate: remove the
ceiling and put celotex between the joists?

It's about the only way with a loft conversion. But you will need to
ensure your wood structure retains sufficient ventilation.

If the outside is tiled with a breathable membrane, 25mm air gap between
the membrane and celotex is fine (what my BCO asked for) and you will
not generally need any vents.

If the sarking is old style and not breathable, you'll need a 50mm gap
and enough vents (in soffit and ridge, or near ridge) to ensure a flow
of air on the cold side of the celotex (cold in winter that is).

What can you see though the hole? Sure the insulation has not been
stopped short to allow the downlighter to breath?


I'm thinking this would be easiest as if I put celotex between the
rafters, don't I have to leave ventilation gaps, which seems to defeat
the purpose?

Thanks,
Stephen.

On 30/06/15 12:19, Tim Watts wrote:

If the sarking is old style and not breathable, you'll need a 50mm gap
and enough vents (in soffit and ridge, or near ridge) to ensure a flow
of air on the cold side of the celotex (cold in winter that is).


Oh - and also if you have an impermeable weather layer - eg felt or
metal instead of tiles.

What can you see though the hole? Sure the insulation has not been
stopped short to allow the downlighter to breath?


+1