Roof screeding is non-structural concrete, poured typically without any steel reinforcement. Roof screeding receives maximum exposure against temperature fluctuations, which often results in concrete cracks and access to rain water.

Concrete using semi-dry screed technology. A simpler method, available for construction by a team of two or three people. Assemble from sheets with high rigidity, resistance to moisture and heat when fusing a soft roof. The latter option can be used on any flat roofs. The recommended material is cement bonded particle board.

A roof screed laid to falls, also called screed to falls, is a variable thickness screed that is laid on top of roof slab to give it the correct slope gradient for rainwater to be carried from the roof of the building towards rainwater outlet and downpipes or guttering systems, hoppers etc.

A screed is a long length of straight two-by-four board or an aluminum bar manufactured specifically for the purpose of laying concrete. Screeding is done by drawing the tool across the wet concrete surface, regardless of the instrument utilized.

Vermiculite concrete roof screeds are suitable for concrete flat slab, low pitched and barrel vault roofs, and those constructed of wood wool slabs, hollow tile or pre-cast concrete beams. Vermiculite concrete roof screeds should be protected with a minimum of 13mm (½ inch) sand/cement topping before the application of surfacing materials.

A Lytag lightweight screed is a cement-bonded Lytag lightweight aggregate no-fines base coat with, most commonly, a 1:4 by weight cement: sand topping. The no-fines base coat of 10:1, 8:1, or 6:1 by

When used as an aggregate with Portland cement, Superfine Grade Vermiculite forms an ultra lightweight concrete, which is simply mixed on site with standard equipment and is easy to blend, handle and place. Suitable for floor and roof screeds where low weight, excellent thermal insulation and fire resistant properties are of particular value.

Insulating Concrete Roof and Floor Screeds using Perlite. Lightweight concretes and screed made with expanded perlite ultra-lightweight aggregate can be used to reduce loss of heat through floors.

Roof Systems Lightweight Concrete and Screeds allows architects and building contractors greater versatility in design and performance of a flat concrete roof or deck. It provides a very effective and efficient method of insulating the concrete base from intense heat, and for creating drainage slopes (screeds) which facilitate quick surface ...

Perlite lightweight insulating concrete is highly workable and easy-to-screed and slope to internal drains or to the roof edge. Perlite concrete is delivered by transit mixer or it can be mixed on-site at the roof level. Once dispensed, it is simply screeded to the desired thickness and slope.