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Hi,
I am converting my attic currently and am also soundproofing it. I have a question regarding the proper method of insulation as I'm worried I may create a mositure problem trying to both insulate and soundproof it.
I will be using the area behind both purlins for storage and would like this area insulated to keep it warm and help prevent mold on the stored items.
I have 5x2 rafters and the plan is 50mm airgap with 75mm Rockwool RW3 between them. Then counter batten and add 50mm Metac. In the storage void behind the queen post, I will simply put 12.5mm fire line board over the Metac and then airtight membrane.
In the ceiling area of room, I will add MLV on top of the 12.5mm plasterboard and then add 50mm insulated plasterboard over it.
I wonder can I also add 75mm RW3 to the queen post too for soundproofing? I'm worried that because the storage area will have insulation on all 3 sides (roof, floor and queen post/knee wall) that this may cause moisture problems.
My reason of adding Rockwool to the knee wall is to prevent noise coming from the void as a school is being built behind us. I'm referring to the areas in green in the picture but I will also be insulating the red area. Thanks!
I am converting my attic currently and am also soundproofing it. I have a question regarding the proper method of insulation as I'm worried I may create a mositure problem trying to both insulate and soundproof it.
I will be using the area behind both purlins for storage and would like this area insulated to keep it warm and help prevent mold on the stored items.
I have 5x2 rafters and the plan is 50mm airgap with 75mm Rockwool RW3 between them. Then counter batten and add 50mm Metac. In the storage void behind the queen post, I will simply put 12.5mm fire line board over the Metac and then airtight membrane.
In the ceiling area of room, I will add MLV on top of the 12.5mm plasterboard and then add 50mm insulated plasterboard over it.
I wonder can I also add 75mm RW3 to the queen post too for soundproofing? I'm worried that because the storage area will have insulation on all 3 sides (roof, floor and queen post/knee wall) that this may cause moisture problems.
My reason of adding Rockwool to the knee wall is to prevent noise coming from the void as a school is being built behind us. I'm referring to the areas in green in the picture but I will also be insulating the red area. Thanks!
