Cork underlayment over wood flooring


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Old 07-30-19, 12:19 AM
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Cork underlayment over wood flooring

I would like to install floating hardwood (bamboo) on the wooden floor of the second floor of my two-story house in California. For the maximum sound isolation I purchased QEP 1/4 in. cork underlayment. The roll came without instruction from the manufacturer, and I was wondering if anyone could guide me through the installation process.

1. Should I leave any gaps between underlayment edges and walls?
2. Once I unroll the roll and cut a piece of the need length, should I flip it over so the curled edges would face the floor to minimize curling?
3. Should I seal the runs with tape? I found instructions from another manufacturer of rolled cork underlayment, and they say not to seal the runs with tape for wood subfloors because ventilation is needed.
 
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Old 07-30-19, 02:27 AM
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Took 5 seconds to locate the manufactures installation instructions!

https://images.homedepot-static.com/...ff60368bcc.pdf
 
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Old 07-30-19, 08:44 AM
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Thanks. It says to tape the seals to wall joints with duct tape. How do you do it? At 90 degree so that a part of the tape gets on the wall itself and later be hidden under the base boards?
 
 

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