In uk.d-i-y, Jules wrote:
On Fri, 30 Jan 2009 11:56:08 +0000, Mike Barnes wrote:
One is almost (but not quite) impossible to access,
being under a shallow roof over a single-storey extension.

How do they normally handle that in order to blow insulation in? Cut a
hole in the ceiling, up through the soffits, down through the roof, or
through a hole in an adjacent wall?

In this case there is small hatch in one corner and I can squeeze in and
crawl halfway along, at the high side next to the first floor wall. The
other half has a slightly higher ceiling and no adult could get in
there. As soon as you move away from the wall... well, you can't, it's
too low, and there are trusses in the way. To make matters worse the
space is obstructed by three... I don't know what to call them, there's
a Velux window in the roof and four little walls going down from it to
the ceiling (times three). All in all you can get pretty close to
everywhere but there's no room to manoeuvre.

I'm assuming they'll go up with a tube, crawl in as far as they can,
spray as far as they can, then gradually retreat spraying as they go.
Even if they stood up in the hatch opening they could do a pretty good
job, depending on the strength of the spray of course.

We've got a small section of the house with no access panel, and judging
by the way it's lost snow before anything else, there can't be much in
the way of insulation in there...

We've got one of those as well but it's in an area we don't heat.

--
Mike Barnes