Underfloor Heating Screed

From Application To Walkable Level Floors In Hours

Pump-applied and self-levelling, SHG Südanit 280 Alpha Hemi Hydrate Screed is the most technologically-advanced floor screed available, complying with the performance requirements of I.S. EN 13813.

What makes SHG Südanit 280 Alpha Hemi Hydrate Screed so special is its chemical composition. Developed in some of Europe's most advanced laboratories, then tried and tested over many years of successful application, SHG Südanit 280 Alpha Hemi Hydrate Screed is a Hemi-Hydrate screed, and this provides unique benefits over less advanced compounds.

Applied At 500m2 Per Day And Walk On It In 8 Hours

SHG Südanit 280 Alpha Hemi Hydrate Screeds advanced composition means that it reacts with water quickly, providing consistent, reliable drying characteristics and considerably faster drying times, enabling following trades to proceed without delay.

It Lays Smoothly And Provides A Superb Finish

SHG Südanit 280 Alpha Hemi Hydrate Screeds easy workability means that it mixes and flows smoothly, with none of the inconsistencies that are inherent in Anhydrite screeds.

SHG Südanit 280 Alpha Hemi Hydrate Screed is stable and does not segregate, so there is no surface skin formation as there is with Anhydrites.

It Means Less Finishing And Fewer Joints

Consistent drying and smooth laying mean no finishing before final floor coverings are laid.

Theres no need for additional smoothing compounds.

The Ideal Solution For Underfloor Heating Or Sound Insulation

SHG Südanit 280 Alpha Hemi Hydrate Screed is a self-compacting screed that flows to fully encapsulate underfloor pipes or wires and reduces the potential for air bubbles/pockets which have an adverse affect on heat transfer.

With little preparation required, when SHG Südanit 280 Alpha Hemi Hydrate Screed is specified with the right type of insulation it can achieve 51 DB, well above the standards required by Part E of the Building Regulations.

Preparation

The right preparation is essential to achieve the best performance from your underfloor-heating system and floor finish.

Please follow the following steps:

	1)INSULATION Place suitable insulation onto structural floor and install edge insulation, along the perimeter of the walls and columns, this to avoid cold bridging and allow the floating floor to expand
	2) PLASTIC MEMBRANE (P.U. MEMBRANE) Before placing of underfloor heating pipes a plastic membrane is installed directly onto the insulation boards, and returned up the walls. This ensures no leakage of the screed and allows the screed to dry consistently throughout.
	3) UNDER FLOOR HEATING PIPES Under floor heating pipes are placed and fixed to the insulation boards using clips and/or rails. Fixings need to be no more than 500mm apart and extra fixings are required for bends/returns, to ensure pipes dont float during screed application.
	4) FLOOR SCREED Before screed placement commences, we set adjustable tripod depth gauges set by laser level to agreed datum, which is usually calculated from your door threshold, there is no requirement for datum lines on walls. This ensures a level floor throughout the building.
	5) FINISHED FLOOR Smooth & Level. Foot traffic can commence after 6-8 hours under normal drying conditions.

Underfloor Heating Screed

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