robgraham wrote:
On 30 May, 13:21, John Rumm wrote:
robgraham wrote:
This is the last part of my workshop refurbishment ! The stonework is
undressed so the gap between the framework/weatherboarding and the
stone is up to an inch and has a howling draft coming through it at
the moment.
The solution I see is expanding foam but I'm not sure of the best way
to apply it. Options thought of so far -
1 From the outside but will it get all over the stonework?
2 Put a profiled board down the join on the outside and inject from
the inside, but then the foam will equally ooze onto the stonework as
the profile board won't be that accurate and also the foam will end up
in the profiled sections of the weatherboarding.
3 Pack the outside of the joint with newspaper and inject from the
inside, but then I wouldn't be able to get rid of the newspaper.
Any other suggestions please. I could have profiled the
weatherboarding as I fitted it but rejected that at the time as
unnecessary.
I take it the weatherboarding sits onto the stonework which steps out
wider than the woodwork then?

How about a tilt fillet, with a skirt:

Assuming the existing is like this:

/
/
/
/ --- Boarding on studwork
/
/
###
###
### --- Dwarf wall
###
###

Using some arris or capping of some description to sit on the outside
sill created where the wall sticks out, you can then have a skirt under
it to hide any gap:

/
/
/
/ --- Boarding on studwork
*
** --- section of arris rail tucked under last board
***
|###
Skirt -- |###
fixed to ### --- Dwarf wall
cover gap ###
###

--
Cheers,

John.

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Sorry John and others - not really a clear description although
several good ideas have come forward. The stonework is the wall of
the house and the workshop is attached to it, so the problem area is
the vertical interface between the rough stonework and the timber
framing. I can't remember how the gaps were sealed previously - I
suspect not though there was a profiled cover.


Typically that might be lead folded behind the boards and then pointed
into the stonework.

Rob