the room:
approximately 12 square meters (130 square feet) separated by lightweight partition walls in a storage level.
The floor consists of rough wooden planks with an overall thickness of about 4–5 cm (1.5–2 inches). The ceiling looks the same.
There is no heating in the lower level nor upstairs. Also, there is no insulation either above or below—just wood. The indoor air is always nicely dry. The temperature difference when heating could be around 10–15°C (50–59°F).
I plan to install new solid wood planks and insulate both the floor and ceiling.
floor:
I am considering the following structure:
1. layer – wooden battens with wood fiber insulation between them
2. layer – vapor barrier on the old planks
3. layer – planks screwed onto the battens
my questions about this:
A. should I use a vapor retarder membrane or rather a fully vapor-tight membrane?
B. is this construction method correct?
ceiling:
1. fit compressed mineral wool insulation between the joists
2. install a vapor barrier membrane on the ceiling (tack the membrane to the joists)
3. screw wooden battens perpendicular to the joists
4. screw drywall panels onto the battens
my questions about this:
C. should I use a vapor retarder membrane or rather a fully vapor-tight membrane?
D. does the membrane make sense if the walls don’t have a vapor retarder?
thank you very much in advance
approximately 12 square meters (130 square feet) separated by lightweight partition walls in a storage level.
The floor consists of rough wooden planks with an overall thickness of about 4–5 cm (1.5–2 inches). The ceiling looks the same.
There is no heating in the lower level nor upstairs. Also, there is no insulation either above or below—just wood. The indoor air is always nicely dry. The temperature difference when heating could be around 10–15°C (50–59°F).
I plan to install new solid wood planks and insulate both the floor and ceiling.
floor:
I am considering the following structure:
1. layer – wooden battens with wood fiber insulation between them
2. layer – vapor barrier on the old planks
3. layer – planks screwed onto the battens
my questions about this:
A. should I use a vapor retarder membrane or rather a fully vapor-tight membrane?
B. is this construction method correct?
ceiling:
1. fit compressed mineral wool insulation between the joists
2. install a vapor barrier membrane on the ceiling (tack the membrane to the joists)
3. screw wooden battens perpendicular to the joists
4. screw drywall panels onto the battens
my questions about this:
C. should I use a vapor retarder membrane or rather a fully vapor-tight membrane?
D. does the membrane make sense if the walls don’t have a vapor retarder?
thank you very much in advance
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