single skin porch

[focal81]

hi all

ive just had a porch built out of single skin brick, with 3 exsternal walls , the question is whats the best way to finish inside

1. harwall and skim ?

2. scratch coat render and then a top coat ?

its just brick on the out side not renderd
need to save as much space as possible and not worreid about insulaition due to its only a little porch 2m x 1m

any help will do , thanks

 

[PrenticeBoyofDerry]

Your problem is with single skin walls, that damp problems may occur.

 

[stuart45]

You might be better to leave exposed brickwork like inside a garage, as the damp will evaporate away easier and not show up as damp patches, which a plastered wall would do.

 

[focal81]

yes thats what i thought to be onest , just wasnt sure , i new damp was gona be an issue , just the brick inside isnt the same texture as outside , so its a bit of a mess

 

[PrenticeBoyofDerry]

You could batten out and borad, but will loose about 75mm thickness from wall.

 

[Richard C]

I wouldn’t render/plaster a single skin wall. I’ve used Duplex (foil back) plasterboard in porches before;
http://www.british-gypsum.com/produ.../gyproc_standard/gyproc_wallboard_duplex.aspx
both fixed to battens & directly fixed where there was no room due to an adjacent to a window but that’s not ideal. Alternatively you could use something like this;
http://www.british-gypsum.com/produ...es/gyproc_thermal/gyproc_thermaline_plus.aspx
Which will give you some insulation & contains an integral vapour control barrier to keep the damp out.

 

[ajrobb]

You could try the 'old fashioned' route and use a lime render/plaster and a latex paint or even whitewash to allow the wall to breathe and dry out. It might be best to avoid gypsum plaster or Portland cement products as these inhibit evaporation. You'll need to keep it well ventilated to avoid condensation.