Browse Forums Bathrooms and Laundry 1 Sep 01, 2021 8:15 pm Hi Everyone, new member here. Have a question and would like your opinions as there seems to be some knowledgeable people here. My bathroom is on the second level so the floor consists of wooden floor joists, a chipboard floor then cement board on top and covered in waterproofing. The old screed looked like sandstone (prob sand/cement) and was REALLY stuck down. Do I need a bonded or unbonded screed? Either way the screed can only be 11-12mm thick. The general consensus I have heard is bonded for concrete ground floor slab and unbonded for upstairs. Does anyone have experience with this? What would the best screed mix be for this purpose? Any needed additives? Re: Shower screed confusion 3Sep 01, 2021 11:29 pm Ok thanks, I thought so as well because it is so thin. The old screed was extremely hard to remove so was probably bonded. Needed a heavy-duty jack hamer. Unfortuantely, I've thrown it all out so cannot check if a bonding agent was used. Before you rip it up, if you can in the grout lines, drill some holes and pour/inject techgrip by sika. I have used it to bond mdf to timber, but in the process it dripped… 1 4284 Hi all, We're curring working on our outdoor and have some questions in relation to screed. I've tried to find information online, without success. Apologies for the… 0 3336 Currently renovating, and our main lounge is 5m x 10m, with a cathedral roof peaking at 6.5m high. Currently have tiles on concrete slab. Room is very hard to heat. I am… 0 4795 |