Screed System

Standard sand/cement screeds are a layer of material laid in situ and consist of bonded, unbonded, floating and heated construction. The screeding system is used for obtaining a defined level to receive final floor coverings such as ceramics, stone, carpet, linoleum, wood flooring, etc.
Traditional screeds can be used in hospitals, airports, schools, sports facilities, retail, residential dwellings and more. Traditional screeding can be produced either at a ready mix plant from various suppliers or on site using a forced action mixer, generally a screed pump.
Jh professional plastering use screed pumps for all cementitious screeds and find this to give flexibility on site. The flexibility of site mixing has an advantage whereby variations in the substrate can often result in huge variances of material requirements. A screed pump has a 260 litre mixing vessel and having carefully calculated the volume to allow for the reduction due to mixing arms, blades, central bar and of course the void, we know just how much material is required to ensure the cement is gauged and therefore guarantee our mix will be. General mix proportions consist of either 1:3 or 1:4 Cement / Sand ratios.
Jh professional plastering recommend that good quality cements are used and carefully mixed with the correct grade of sand, successful implementations can be achieved.

Insulation Systems

There are a huge range of both thermal and acoustic insulations that form part of a screed system. Jh professional plastering have a wide knowledge of applications which are installed on a daily basis in various environments.
Jh professional plastering are specialists in the field of acoustic and thermal insulations and install on projects such as schools, academies, shopping centres, hotels, residential dwellings and much more. Both acoustic and thermal insulations are required to be installed in the correct methods to ensure that failures do not arise at a late stage causing potential claims for disruption. The failure rates are very high in the industry and a specialist installer should be appointed. It has proven that a special attention and communication to the finest details have been a real success in our company, giving customer satisfaction time after time.
Screed Reinforcement
Screed reinforcement is a recommendation for use in screed constructions. There are various options that can be adopted which consist of fibres or metal mesh. The general purpose is to restrain the drying stress generated from the cement in a screed system. The natural process is for the screed to try to curl and crack as well as shrinkage that is inherent in cementitious products. The reinforcement is designed that if a crack occurs, it will hit the mesh / fibres and deflect the stress, therefore reducing the effect. A crack does not necessarily mean a failed screed and there are appropriate methods for repair, depending on the final floor finish. Generally thicker finishes, such as carpet would not require any further maintenance. Tiles and vinyl finishes would require a repair and generally an epoxy can be successfully applied as recognised in the British Standard.
The screed is required to be laid in two layers encompassing the mesh in the middle to the top third in order to be effective. The use of polypropylene fibres gives numerous advantages as this is added to the mix, the reinforcement is throughout the screed and gives a logistical advantage for placement. The other advantages are reduced plastic shrinkage, reduced bleeding, reduced permeability, reduced risk of delamination, increased bond, increased impact and abrasion resistance giving rise to better durability. The fibres are coated to aid the dispersal and should be placed in water prior to adding to the mix. Normally 0.9kg will be used to produce 1m3 of screed. Fibres will only replace mesh for standard applications and advice should be sort from a specialist as they do not replace the need for structural steel.
We offer competitive prices, and to assure the quality of our work. We are a member of The GN alliance where, a strict standard has to be met in order to gain this mark of quality and we are also under constant monitoring from the board.

If you require Screed work done in your business or in your home, why not contact us for a no obligation quotation now.

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