"Guy King" wrote in message
...
The message
from "keith_765" contains these words:

Ask the insulation contractor not to push the insulation up to the back
of
the felt underlay, leave a 25mm gap from the felt. If the insulation is
pushed up to the felt underlay, the alternative is to fit vent tiles
above
the height of the insulation every 1.6 metres both eaves to cause an air
cross flow.

Some of the houses round here which have had mucho insulation fitted
have these.

What about eaves trays?
To fit eave trays you have to take off the roof covering. Which type of eave
vent system are you referring to.
1) Full eaves vent system including, over fascia vent strips, with felt vent
support tray.
2) Over fascia vent in one.

http://www.cemex.co.uk/page.asp?id=2789 Try this.

Which ever you use, you will have to take off about 600mm x length of the
building, of roof covering at eaves level.

KS Notts