Helpful Parent

Status
Not open for further replies.
O

odscar2208

New Member
Hi there, NOT a keen DIYer but I do like doing the labouring bits that cost tons of cash. My daughter has recently bought a house and we have stripped out the kitchen (First task)Part of the kitchen (existing before extension) had plasterboard fitted to quite thick battening. The gap to the external wall was as much as 2 to 3 inches. The external wall is double skin with cavity .Needless to say we discovered a belly in the internal wall and on further investigation discovered all the existing internal render had lost its key. We took the render down to the existing brickwork. We decided that it should be re rendered using sand cement bog standard so we have had a few guys out to price all the prep work ready for skimming the whole kitchen. We have been told the wall has to be left to dry out for as much as 3 months by one guy before the finishing skim is applied. As this will delay the completion of the kitchen fitting we were totally surprised. Can I ask any experienced guys out there what they would advise as to drying out time before applying final skim coat. The wall to be rendered is an external wall double skin with cavity . It is at the side of the property facing North but the adjacent property gives some degree of shelter. Any advice re drying time and best way to do it would be appreciated as my daughter NEEDS to be in the house ASAP as she`s currently living with ME. Nuff said. :RpS_laugh:
 
3 months seem a long time to me speek to a surveyor about the belly in the wall sounds like a bit of movement there then go and get another couple of quotes and welcome to the forum
 
Chances are the belly is just down to the bricky. If tthere was movement there were be obvious signs IE cracking. Render should be left for approx 5 days before skimming. Allow a week or so for skim to fully dry if you are unsure
 
use hardwall, render and float in the morning, skim in the afternoon. a one day job. cement and sand went out with the ark!
 
Seven days drying is fine,, sand and cement is the way I would go. Hardwall is ok on new cavity walls but on old walls I would fear damp or salts.
 
Even on cavity work asif?because of the bricks used maybe?why not just re batten and board?or hardwall as Malc said then skim same day?3months is way over the top.or asifs fave,sbr slurry then s+c then skim when dry.
 
I,don't like hardwall on existing walls, I only use it on new cavity walls myself, I,mostly use sand / cement on refurb work , you can add additives as required, I find all the new plasters too expensive.
the 3 months was probably said by a busy plasterer,
 
Thanks for the replies. Thought belly was down to poor brickie. House was built on an estate which was started pre war and finished post war. Lots of examples of iffy brickying on the estate due to shortage of quality guys post war. Seven days drying seems the acceptable way to go and s/c with additives looks to be the way. Thanks for all your help. :RpS_cool:
 
If you want to go down the Sand and cement route you could consider Limelite or dricoat? B&Q Depots sell dricoat. The advantage is no sand but a lightweight aggregate like vermiculite. Waterproofed and not being dense it will be insulated as well. Let it dry for a week though but it will need no more at this time of year and don't use pva.

The 3 month month guy was pulling your plonker.
 
Rigsby said:
If you want to go down the Sand and cement route you could consider Limelite or dricoat? B&Q Depots sell dricoat. The advantage is no sand but a lightweight aggregate like vermiculite. Waterproofed and not being dense it will be insulated as well. Let it dry for a week though but it will need no more at this time of year and don't use pva.

The 3 month month guy was pulling your plonker.
Click to expand...
Never seen dri coat in b and q ,wonder if its in any of my local ones
 
Don,t know as I don't plaster. Used Limlite on one of my btl back in 08 and i think it was £11 a bag but not a problem in a unheated off shot kitchen with solid walls.
 
Jewsons are the only BM round my way that stock dri-coat............£12 a bag + VAT
 
It is good stuff though. Once dry you don't need to piss about with pva. Hell of a lot cheaper doing it in sc though
 
Sand and cement is so dense. Put water proofer in it as well and you have a condensation problem. Limelite has never give me a problem apart from the cracking if you rush it.
 
Status
Not open for further replies.

Share this page

Back
Top