Floating Floor Screed Depth

Insulating a solid floor.

Floating floor screed depth. The maximum floor screed thickness of a smoothing compound would usually be around 10mm. This will guarantee a satisfactory bond between floor screed and placed concrete beneath it. That is where you have got acoustic or thermal insulation in between the screed and the substrate and you may also have a membrane as well. With the drive to gain an a1 rating in modern dwelling the use of insulation in a floor build up is becoming the normal practice.

Traditional sand cement floating screeds are suitable for application at a minimum thickness of 75mm for heavy and medium duty screed applications category a b and at a minimum thickness of 65mm for light duty residential use category c see bs 8204 1 section 6 design considerations for further explanation of floor usage categories. Floating used to enable installation of thermal or impact sound insulation. For screed floor placed on. This is a type of unbonded screed.

Floating screed laid on acoustic or thermal insulation. The optimum thickness of a sand and cement bonded screed is 25 40mm an unbonded screed should have a minimum thickness of 50mm whilst a floating screed should have a thickness greater than 65mm for lightly loaded floors and 75mm for more heavily loaded floors. As this type of screed is pumped it is usually delivered in a mixing lorry and put down via a pumping pipe. Fine concrete screed screed consisting of a concrete in which the maximum aggregate size is 10mm.

Floating screed thickness how thin can you go. Traditional sand and cement would be the same. Recommended floor screed thickness mm. Liquid screed is designed to cover up to 1000 square meters in one day compared to 150m in a traditional screed floor.

Floor screed type and construction condition. Most modern homes have a solid floor for example. The maximum floor screed thickness of a modified sand and cement screed can be of any depth although you might wonder why you would want it very thick. There will be a damp proof membrane under the insulation and possibly a second membrane on top depending on the type of screed.

The thickness of floor screed unbonded is different. Cement sand screed screed consisting of a screed material containing sand up to a 4mm maximum aggregate size. With this a floating screed has become a popular option a floating screed is generally laid on a layer of insulation with a slip membrane over it separating the insulation from the screed. Understanding thin polymer modified floating screeds.

I m andy parkin managing director of the multi award winning speed screed. Bonded screed minimum depth. In this case floor screed will be placed no longer than 3 hours after the placement of concrete.