Topflow Screed A

Topflow Screed A is manufactured with a synthetic anhydrite binder in place of cement and is pump applied due to its fluid consistency. It is easier to install, covering areas of up to 2000 m² per day.

Features and benefits:

• Manufactured to BS EN 13813:2002, with a recycled source of gypsum (calcium sulfate) rather than cement. It has a free-flowing fluid consistency and is applied by pump.
• Floors are suitable for foot traffic within 24–48 hours, while drying takes 40 days, or sooner with force drying (available after only seven days).
• Lower carbon footprint than traditional cementitious screeds.
• Suitable for use with low energy underfloor heating.
• Any type of floor finish can be applied to the screed.
• Maintenance of fluidity for two hours.
• The screed is produced using Gyvlon binder which is manufactured from an industrial by-prod­uct (average 36% recycled content).
• Water demand: 13–18% b.w.
• Flow range: 230–280 mm.
• Volite Organic Compound (VOC) free and 100% recyclable.

Screed thickness:

• Bonded: Minimum: 25 mm.
• Unbonded over a solid base: Nominal: 35 mm. Minimum: 30 mm.
• Floating over thermal/ sound insulation: Minimum: 40 mm.
• Cover over conduits/ heating pipes: Nominal: 30 mm, Maximum: 80 mm.

Topflow Screed A Steeldeck:

• Designed specifically to be used with the Lewis Deck dovetail sheeting, for use with timber, metal web or steel joists in masonry, timber or lightweight steel structures.
• Suitable for ground, separating or mezzanine floor constructions.
• Increased productivity and improved loading compared to floating floor treatments.

Topflow Screed A Sky

• Designed for use in high rise buildings above ten storeys.
• Specially formulated to reduce moisture loss to pump lines and inline segregation.

Topflow Screed A Excelio

• Designed for use with underfloor heating systems and where higher than usual loadings are expected.
• Suitable for both domestic and commercial applications as a floating screed.

Topflow Screed A XTR:

• Designed for use with underfloor heating systems and where higher than usual loadings are expected.
• Suitable for both domestic and commercial applications as a floating screed.

Topflow Screed A Soundbar:

• Designed specifically for use over timber joints both in masonry and timber framed designs.
• Suitable for both commercial and residential projects where improved acoustic, loading and durability are required.
• Improved loading compared to timber batten floors.

Topflow Screed A Thermio +:

• Designed for use with underfloor heating systems and where higher than usual loadings are expected.
• Suitable for both domestic and commercial applications as a floating screed.