D.M. Procida wrote:
Do these need to be done in any particular order, if they're being
done at about the same time?

The insulation people said it doesn't matter as far as they're
concerned, but will new insulation interfere with the work to install
the new cavity ties?

Daniele

It depends....there are two main types of replacement wall ties, chemical
and mechanical.
As the name suggests, the first type uses an epoxy resin on the part that
goes into the inside block or brickwork, left to set, and then a nut is
tightened on the outer skin to bind the two walls together - with this type
it's preferable to have a clear cavity because a dust extraction tool is
used to allow the resin to bond correctly with the inside skin, if there was
wool everywhere this would be practically impossible.
The second method is similar, except there is no resin used for the inside
skin, it merely uses a type of expanding 'rawlbolt' kind of thing at the
inside skin side and uses an ordinary nut at the outer skin, with this type,
it doesn't matter whether the cavity is filled or not.

The chances are the WT replacement company stocks both types and will use
whatever is required on the day.

--
Phil L
RSRL Tipster Of The Year 2008