removing soot from fire damaged walls

[birdie]

we have a rennovation project for a fire damaged house. we need to remove the soot from the walls and ceiling before they can be plastered. The plan is to use a sugar soap. Does anyone have any experience of this work and/or tips?

 

[Zampa]

Yes...sub it out!...

 

[birdie]

ha! We have....it's the sub's who plan to use the sugar soap: I need a contingency in case they're wrong!

 

[Zampa]

Sugar soap should be fine but you would be better off sealing the wall with stain block (thinned) to give the next coat a good base, plus it will help bond down any soot residue left behind.

 

[birdie]

Thanks for the advice....and if all else fails, we'll sub it out again!!