Speedy1985
2020-07-04 14:38:28
- #1
Hello forum community,
about years ago we completely renovated a single-family house built in 1965 on the ground floor. In this process, the wooden beam ceiling to the attic was already completely opened and filled with 8cm insulation (rock wool) + about 6cm gravel as loose fill between the beams. On the beams, first coconut strips (about 8mm) were laid for decoupling and on top of that 25mm OSB (glued together, floating on the beams/coconut strips). Now the question is how to proceed most sensibly, especially to achieve the best possible impact sound insulation. Vinyl is supposed to be used as flooring 90% of the time.
My idea is as follows:
- 2nd layer of OSB with 12.5 or 15mm, which is screwed to the first layer and glued over the entire surface (half offset in installation). This should definitely keep the joints of the first layer closed and also improve the stiffness of the panel as a whole.
- Then vinyl with separate impact sound insulation laid floating on top.
Is this approach sensible? Currently, you can still feel quite clearly that the 25mm OSB "floats" on the coconut strips and also gives way somewhat depending on the load. Can a click connection of the vinyl withstand this or will it become a problem? Alternatively, the vinyl could be glued, but if it’s not necessary, I would prefer to avoid that.
Thanks for your tips/opinions
Best regards
Michael
about years ago we completely renovated a single-family house built in 1965 on the ground floor. In this process, the wooden beam ceiling to the attic was already completely opened and filled with 8cm insulation (rock wool) + about 6cm gravel as loose fill between the beams. On the beams, first coconut strips (about 8mm) were laid for decoupling and on top of that 25mm OSB (glued together, floating on the beams/coconut strips). Now the question is how to proceed most sensibly, especially to achieve the best possible impact sound insulation. Vinyl is supposed to be used as flooring 90% of the time.
My idea is as follows:
- 2nd layer of OSB with 12.5 or 15mm, which is screwed to the first layer and glued over the entire surface (half offset in installation). This should definitely keep the joints of the first layer closed and also improve the stiffness of the panel as a whole.
- Then vinyl with separate impact sound insulation laid floating on top.
Is this approach sensible? Currently, you can still feel quite clearly that the 25mm OSB "floats" on the coconut strips and also gives way somewhat depending on the load. Can a click connection of the vinyl withstand this or will it become a problem? Alternatively, the vinyl could be glued, but if it’s not necessary, I would prefer to avoid that.
Thanks for your tips/opinions
Best regards
Michael