Insulating walls from inside

[Unregistered-Raymond]

My son bought a small 4 sided brick bungalow built in 1963.In doing repairs in the washroom I had to take apart the outside wall and found NO insulation. Consists only of brick, black BP wall board, an air barrier, 2 inch solid wood, vapour barrier, vertical strapping then the plaster. Question: In adding rigid foam insulation on the inside wall should I add a second vapour barrier?

Thanks for your help.

[jfh1967]

Foam is wather proof. But you can add an aluminium vapor barrier to keep heat inside.
Put a 2 in foam.

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