Decipher old renovation description

[mendelsohn]

Found a description of how a facade was bricked over plaster etc.

Can someone explain exactly what this description including abbreviations means?

Thankful

 

[justusandersson]

A 5-inch (125 mm) timber wall has been externally fitted with 60 mm thick bricks (1/4 brick) with 50 mm thick mineral wool insulation behind. The support for the bricks is made of hot-dip galvanized angle iron. The timber wall was externally clad with mesh and plaster. The long sides and gables are made the same way. I am unsure what the crosses in the boxes with the text P stand for. Possibly M means masoned and P means plastered?

 

[mendelsohn]

Royal response!!

Two follow-up questions, it's quite unclear to discern:

1. Does it mean that the plaster is still underneath
2. Is the "foundation widened then. So the brick rests on a raised shelf?
Or does the brick rest on the part of the foundation that it was built and plastered on?

But maybe it's unclear to discern

 

[justusandersson]

1) I am sure of that
2) Yes, the base is widened with angle steel that is screwed into some part of the old wall.

 

[mendelsohn]

Thank you very much