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I am building a non-load bearing stud walls close to stone gable walls as part of an old house insulation project. Total thickness 87.5mm incl. plasterboard on one side
Questions:
1. What are my wood options: carcassing rather than CLS?
2a. 75mm stud + 75mm insulation + 12.5mm plasterboard
OR
2b. 50mm stud + 50mm insulation + 37.5 insulated plasterboard overlay
Questions:
1. What are my wood options: carcassing rather than CLS?
2a. 75mm stud + 75mm insulation + 12.5mm plasterboard
OR
2b. 50mm stud + 50mm insulation + 37.5 insulated plasterboard overlay