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Phil Addison
 
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Default Damp under upstairs window. Porous sill?

On Tue, 22 Jun 2004 18:23:16 +0100, Pete C
wrote:

On Mon, 21 Jun 2004 23:40:43 GMT, Phil Addison
wrote:

I think the tranlucent is more like a varnish colour. Another
possibility is a UV stabilised clear expoxy.


Is that 'paint-on' or spread as a skim?


Hi,

Probably best to put it on with a spreader and brush it out. Have a
look for epoxy concrete or driveway sealers for some examples. If it's
a concrete sealer it will need to have UV inhibitors.

Also it's better to seal around the window after the cill has been
sealed, most sealants stick better to a non porous surface, and if the
sealant starts to come away there's less chance of water getting into
the cill.


Hmmm... I've just realised that everyone seems to be assuming that the
sill is still porous. Don't forget I have given a very generous sloshing
with silicone fluid. I WAS hoping you'd all say that should be OK, but
the only comment on is from Andy saying his only helped a bit. Is it the
case you all think that stuff was a waste of time?

Pete, I did put the new silicone bead seal around AFTER treating the
sill. Guess it will have to come off again if I DO need to
paint/spread/skim with some other stuff as well.

Phil
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