Hello,
I have already read many tips in this forum. Great forum.
Now I have a question myself. We have a balcony attached to our house, which is built on a wooden frame structure (painted laminated beams). The flooring, made of WPC boards (tongue and groove), was screwed directly onto the load-bearing joists. Over the years, this construction has become increasingly leaky, so that after rain, water drips through onto the terrace below. This continues even long after the rain has stopped. I suspect that the WPC boards have shrunk over the years due to the construction, allowing water to seep through the tongue and groove joints.
A friend suggested trying to seal it with marine-grade Sikaflex.
Now to my question, since I couldn’t find a clear answer on the Sika website and they only referred me to local contractors: Is it possible to use marine Sikaflex (e.g., 291i) on WPC boards (regarding adhesion to WPC, etc.)?
Thank you very much for your input.
I have already read many tips in this forum. Great forum.
Now I have a question myself. We have a balcony attached to our house, which is built on a wooden frame structure (painted laminated beams). The flooring, made of WPC boards (tongue and groove), was screwed directly onto the load-bearing joists. Over the years, this construction has become increasingly leaky, so that after rain, water drips through onto the terrace below. This continues even long after the rain has stopped. I suspect that the WPC boards have shrunk over the years due to the construction, allowing water to seep through the tongue and groove joints.
A friend suggested trying to seal it with marine-grade Sikaflex.
Now to my question, since I couldn’t find a clear answer on the Sika website and they only referred me to local contractors: Is it possible to use marine Sikaflex (e.g., 291i) on WPC boards (regarding adhesion to WPC, etc.)?
Thank you very much for your input.
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