Damp proofing

jamie856uk · Post by **jamie856uk** » Sat Aug 11, 2007 11:35 pm

Hi, have just come across a job where a couple of walls need damp proofing. Have got the guys coming in to sort it out next week but what do i plaster onto the wall thay have treated. I am assuming i cant just apply hardwall? Any advice would be appreciated!

LUFC · Post by **LUFC** » Sun Aug 12, 2007 12:23 am

to avoid it again, apply a render coat of sand and cement then skim.

cement backings help were damp has been or were it will occur

jamie856uk · Post by **jamie856uk** » Sun Aug 12, 2007 9:26 pm

Thanks for the response. Is sand and cement the only way to do this or are there any pre made plasters that can be used?

tim'll fix it · Post by **tim'll fix it** » Sun Aug 12, 2007 11:12 pm

you can get renovating plaster, i think its called limelight

andy-p- · Post by **andy-p-** » Mon Aug 13, 2007 12:32 pm

Limelight can be used as tim said but i would go for s&c. Its loads cheaper!
Think limelight is £8.00 ish for a 25kg bag

-dj- · Post by **-dj-** » Mon Aug 13, 2007 3:17 pm

limelite renovating is good, but as said, s&c with a waterproof aditive is usually the best path to go down. gypsum also do a renovating plaster but i'm not sure how good it is as it's relatively new on the market!

Jaeger_S2k · Post by **Jaeger_S2k** » Mon Aug 13, 2007 4:13 pm

Hey Hey dj.

Where you been hiding?

jamie856uk · Post by **jamie856uk** » Mon Aug 13, 2007 4:37 pm

Thanks for the advice. Has helped a lot!

Post by **ultimatehandyman** » Mon Aug 13, 2007 5:10 pm

I'd put some integral waterproofer in the render mix as well

Have you seen the new section on Damp

nearnwales · Post by **nearnwales** » Fri Aug 17, 2007 11:23 pm

normaly the injection system will tell you which way to go or you dont get the 25 year deal. Its normaly sand and cement with there own waterproofer in. but you can use limelit and dry coat which is very good and its cement based.

netserve · Post by **netserve** » Mon Sep 10, 2007 3:06 pm

I'm doing a damp course myself using cream injection method.

(The walls are showing as damp on a test meter but are not showing visible signs of damp. ie it's damp but not that bad)

I've been told different views on plastering the walls.

One says I must use render/limelite cut back to 5 inches above the floor.

The other says I can use drylinging/plasterboard and a skim finish. (Advised to batten the wall and treat the battens against damp.)

The last option was drylinging but with a dimple waterproof membrane behind but that seems expensive and overkill?

From my point of view I want to do the drylining myself and have my pro plasterer complete the skim.

Any thoughts?