Hello,
I’m wondering whether I should use the planned (and budgeted) V100 floorboards for the attic or if it would be better to choose tongue-and-groove boards (+633 euros / 21mm [0.8 inches]) for the attic of the bungalow (without a concrete ceiling).
The advantage would probably be that tongue-and-groove boards can absorb moisture better and allow it to pass through to the (otherwise untreated) attic, meaning they are more vapor permeable than V100 boards.
Am I understanding this correctly? Is the additional cost worth it? What would you do?
Regards,
Voki
I’m wondering whether I should use the planned (and budgeted) V100 floorboards for the attic or if it would be better to choose tongue-and-groove boards (+633 euros / 21mm [0.8 inches]) for the attic of the bungalow (without a concrete ceiling).
The advantage would probably be that tongue-and-groove boards can absorb moisture better and allow it to pass through to the (otherwise untreated) attic, meaning they are more vapor permeable than V100 boards.
Am I understanding this correctly? Is the additional cost worth it? What would you do?
Regards,
Voki
It's impossible that two hours after posting a question, there is still no comprehensive answer (actually, none at all).
After careful consideration, I decided to work with shiplap boards. Somehow, I feel more comfortable with real ones—without glue between the pieces. In this case, both my intuition and reasoning influenced the decision equally, about 50/50.
After careful consideration, I decided to work with shiplap boards. Somehow, I feel more comfortable with real ones—without glue between the pieces. In this case, both my intuition and reasoning influenced the decision equally, about 50/50.
My first thread, which I’m having entirely with myself.
I spoke with my expert, and he strongly recommends using tongue-and-groove boards. This ensures the effective removal of any residual moisture in the building components. OSB panels, on the other hand, are relatively vapor-tight, which could lead to mold growth.
Since just the word “mold” gives me chills, I’ve decided to go with the recommended option, as mentioned.
I spoke with my expert, and he strongly recommends using tongue-and-groove boards. This ensures the effective removal of any residual moisture in the building components. OSB panels, on the other hand, are relatively vapor-tight, which could lead to mold growth.
Since just the word “mold” gives me chills, I’ve decided to go with the recommended option, as mentioned.
EveundGerd3 Mar 2015 22:50I find this thread very interesting!
Our carpenter also recommended tongue-and-groove boards for the reasons you mentioned. Our floorboards are 24 mm (1 inch) thick, with a groove and solid tongue, delivered by the carpenter and carried up to the attic on the day of the topping-out ceremony. (In our case, the roof was installed first and then the celebration took place.) We will only install them after the house handover. Therefore, I have no idea yet what kind of work awaits us.
Our carpenter also recommended tongue-and-groove boards for the reasons you mentioned. Our floorboards are 24 mm (1 inch) thick, with a groove and solid tongue, delivered by the carpenter and carried up to the attic on the day of the topping-out ceremony. (In our case, the roof was installed first and then the celebration took place.) We will only install them after the house handover. Therefore, I have no idea yet what kind of work awaits us.
I will have a look underneath after about 4 years to check if anything unpleasant might have developed. I will also arrange another blower door test to see what might still be enforceable under the warranty.
I sent my expert back to the construction site again yesterday. Inspecting, observing, examining.
I sent my expert back to the construction site again yesterday. Inspecting, observing, examining.
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