my home which was built in the early 1900's has the old lath and plaster walls, but i guess sometime in the 80's they ferred the walls then used the white cheep styrofoam in btw the strips and paneled the walls.i painted the walls when i moved in but hate it and i want them changed. to avoid the dust and dirt i am planning on removing the old paneling and replacing it with sheet rock or possibly new wood paneling, i am undecided yet, but my question is i have no insulation, can i replace the white styrofoam stuff with some type of insulation board? and if so which should i use. i am planning to remodel my attic and convert it into a 3rd bedroom, again it is finished (lath and plaster) and i dont want to rip it all out.so i am planning on doing the same thing u there.
help me please