Sealing the area between wall and floor

[Stephen Gilkes]

I'm part way through insulating my brick shed (see Fixing Celotex to walls
post). On one wall where the bricks meet the concrete there are cracks and
holes which might in the future allow damp (or whatever) through.

Can anyone recommend a good sealant that I can paint on the area.

Also, I've used a silicon sealant to fill the gaps between the door frame
and the brick work. Is that a good idea.

Want to make things as sealed as possible before covering in Celotex.

Thanks.

 

[Stephen Gilkes]

Can anyone recommend a good sealant that I can paint on the area.

Expanding foam.

The gaps are quite small. Will Expanding foam be ok for small gaps.

 

[David Hearn]

Expanding foam.


Make sure it is exterior grade. However, expanding foam is what you
should use to fill gaps in window/door frames. It is a good insulator.

Ignore the instructions that say how to clean the nozzles, the stuff
is sticky as a very sticky thing. Your chances of successfully
cleaning the things is zero. You basically get one change to use the
can, unless you choose one with 2 different sized nozzles, so you can
use it twice. I wonder when one manufacturer will catch on and sell
packs of nozzles? I'd buy them.

Screw fix sell a 'cleaner' thing which you can use to clean out their
applicator gun which is separate from the foam itself.

http://www.screwfix.com/app/sfd/cat/pro.jsp?id=12040 (Cleaner)
http://www.screwfix.com/app/sfd/cat/pro.jsp?id=14315 (Applicator gun)
http://www.screwfix.com/app/sfd/cat/pro.jsp?id=18821 (Foam for gun)

David

 

[Andy Hall]

Expanding foam.


Make sure it is exterior grade. However, expanding foam is what you should
use to fill gaps in window/door frames. It is a good insulator.

Ignore the instructions that say how to clean the nozzles, the stuff is
sticky as a very sticky thing. Your chances of successfully cleaning the
things is zero. You basically get one change to use the can, unless you
choose one with 2 different sized nozzles, so you can use it twice. I wonder
when one manufacturer will catch on and sell packs of nozzles? I'd buy them.

I think you answered your question




..andy

To email, substitute .nospam with .gl

 

[Tim Hardisty]

Screw fix sell a 'cleaner' thing which you can use to clean out their
applicator gun which is separate from the foam itself.

http://www.screwfix.com/app/sfd/cat/pro.jsp?id=12040 (Cleaner)

I use this all the time for standard cans of foam - works a treat. I'm
pretty sure from the smell that its acetone.
Tim Hardisty.
Remove HAT before replying

 

[Tim Mitchell]

Expanding foam.


Make sure it is exterior grade. However, expanding foam is what you should
use to fill gaps in window/door frames. It is a good insulator.

Ignore the instructions that say how to clean the nozzles, the stuff is
sticky as a very sticky thing. Your chances of successfully cleaning the
things is zero. You basically get one change to use the can, unless you
choose one with 2 different sized nozzles, so you can use it twice. I wonder
when one manufacturer will catch on and sell packs of nozzles? I'd buy them.

If you pour lots of acetone through the nozzle before it sets too much,
you can clean it. Acetone gets it off your hands too. It will probably
turn out to be horribly carcinogenic in the next few years (after
generations of women have used it to remove their nail varnish.)

 

[Roger Wareham]

Ignore the instructions that say how to clean the nozzles, the stuff is
sticky as a very sticky thing. Your chances of successfully cleaning the
things is zero. You basically get one change to use the can, unless you
choose one with 2 different sized nozzles, so you can use it twice. I wonder
when one manufacturer will catch on and sell packs of nozzles? I'd buy them.

Stick a cocktail stick in the short end and a bamboo kebab stick in the
long end. When the foam has set, twist and pull the sticks and the foam
will come away leaving the tube clean.

Roger.

 

[Stephen Gilkes]

Can i put flashing tape over the "join" between wall and floor to seal it?