Hello everyone,
I hope this topic fits in this subforum; otherwise, please feel free to move it.
In the coming weeks, we will be preparing the terrace (a gravel base bed, on which sand and paving stones will be laid later). The top edge of the future terrace surface ends almost exactly at the edge where the ground floor insulation meets the basement insulation, see the photo below. Next week, the exterior plaster/paint will be applied over the ground floor insulation.
Our site manager said it is completely sufficient to cover the basement insulation with a dimpled membrane and then place the gravel/sand/paving stones "in front of" it. Only if it were above ground level would it need to be sealed with a base plaster, he said. Since the base plaster is invoiced separately by the general contractor, this is definitely not him trying to avoid extra cost or effort.
However, I keep reading everywhere about how important proper sealing of the base is, using sealing slurries/bitumen coatings, etc. Does this really not apply in a case like this?
The site manager explained it to us like this: beneath the existing dimpled membrane, there is no additional waterproofing, and since everything will later be below ground level, the same applies to the rest as well… If it matters, the basement is made of waterproof concrete (WU concrete).
Thank you very much for your input!!!
I hope this topic fits in this subforum; otherwise, please feel free to move it.
In the coming weeks, we will be preparing the terrace (a gravel base bed, on which sand and paving stones will be laid later). The top edge of the future terrace surface ends almost exactly at the edge where the ground floor insulation meets the basement insulation, see the photo below. Next week, the exterior plaster/paint will be applied over the ground floor insulation.
Our site manager said it is completely sufficient to cover the basement insulation with a dimpled membrane and then place the gravel/sand/paving stones "in front of" it. Only if it were above ground level would it need to be sealed with a base plaster, he said. Since the base plaster is invoiced separately by the general contractor, this is definitely not him trying to avoid extra cost or effort.
However, I keep reading everywhere about how important proper sealing of the base is, using sealing slurries/bitumen coatings, etc. Does this really not apply in a case like this?
The site manager explained it to us like this: beneath the existing dimpled membrane, there is no additional waterproofing, and since everything will later be below ground level, the same applies to the rest as well… If it matters, the basement is made of waterproof concrete (WU concrete).
Thank you very much for your input!!!
