Floor Screed Minimum Thickness With Sbr

There are proprietary screeds available that can be laid at thinner depths than conventional sand and cement screeds.

Floor screed minimum thickness with sbr.

Bonded screed minimum depth. Pye pw and harrison hw. If we look at each different type you re going to have different floor screed thickness on the minimum and maximum depths. Isopol sbr a styrene butadiene sbr polymer latex screed additive and bonding agent for heavy duty flooring or rapid drying levelling screeds to receive various types of floor finishes.

Bonded screeds are utilised where screed thickness cannot be built up or to minimise dead loads on structure. As 3958 1 2007 a2 3 a nominates the minimum bonded screed thickness of 15mm at any isolated point. This screed provides high performance at thinner sections and is ideal when normal thickness cannot be achieved. Isocrete isopol sbr is used to produce polymer modified wearing screeds for heavy duty and industrial flooring and for rapid drying levelling screeds.

Therefore to allow for deviations in the finished levels the specified design thickness should be a minimum of 70mm. Also where bonded screeds are installed as part of a flexible waterproofing system in combination with a flexible bonding agents. However bs 8204 1 emphasizes that there is a high risk of screed curling with unbonded and floating levelling screeds. The screed thickness should not be less than 50mm.

When bonding directly to the substrate with a bonding agent or a primer the minimum is 1 2mm feather edge with smoothing compound. A minimum thickness of 65mm is possible provided the thermal insulation boards are firm enough for the compaction of the screed.