Have booked the plumber in.
He will be drilling 40mm core holes into a balcony made of waterproof concrete.
Installing 2 x 30cm copper spitter tubes.
Adhering the tubes to the balcony with polyurethane.
Is this suitable or do I need to insist on another type of sealant? I heard concrete does not stick to waterproof concrete?
Thank you.
He will be drilling 40mm core holes into a balcony made of waterproof concrete.
Installing 2 x 30cm copper spitter tubes.
Adhering the tubes to the balcony with polyurethane.
Is this suitable or do I need to insist on another type of sealant? I heard concrete does not stick to waterproof concrete?
Thank you.
