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Underfloor Heating System incorporating Polypipe Red Panel pipes and floor panel, encapsulated with ARDEX FLOWPLUS Liquid Cement Screed.
ARDEX FLOWPLUS with Polypipe Red Floor Panel System is suitable for:
Polypipe Underfloor Heating’s Red Panel System with ARDEX FLOWPLUS screed.
ARDEX FLOWPLUS is an all-in-one liquid cement screed that provides a cement-based flowing screed that offers great thermal conductivity, with full encapsulation of heating pipes.
Polypipe's Red Floor Panel System is a castellated panel system providing optimum UFH performance through precise pipe positioning and 360° screed encapsulation of heating pipes. Panels interlock to create a stable base for liquid screed application. The panel is manufactured from a vacuumed formed high impacted raisin enabling quick installation and easy cutting. Polypipe’s Red Floor Plate accommodates 15 mm and 18 mm diameter pipe. The heating pipe is predominately installed in a spiral pattern, at 100 mm or 200 mm centres.
For a comprehensive NBS M10 or T90 specification, contact Ardex UK.
Features and benefits:
Color | Grey Red |
Finish | Cement |
Material | Cementitious Plastic |
Shape | Formless Rectangle |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year Guidance for specification option: FLOWPLUS Screed. |
Uniclass | |
CAWS | M10/160 Proprietary self smoothing levelling screeds T90/110 Heating system |
Classification data | |
System performance | Underfloor heating: Typical heat output at 50°C mean water temperature: At 100 mm pipe spacing: 91 W/m²; At 200 mm pipe spacing: 76 W/m². |
Preparation | Pre-screeding inspection in compliance with manufacturer's instructions. Guidance for specification option: Before commencing screed installation, verify:
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Movement joints | |
Components | Manufacturer guidanceInsert requirements. Coordinate movement joint locations and details with UFH circuit design and final floor finish requirements. |
Bedding | Manufacturer guidanceInsert requirements. |
Insulation | Expanded polystyrene (EPS) boards. Guidance for specification option: To be specified separately. Extruded polystyrene (XPS) boards. Guidance for specification option: To be specified separately. Polyurethane (PUR) foam boards. Guidance for specification option: To be specified separately. Manufacturer guidanceCompressive strength: Minimum 150 kPa at 10% compression. Dynamic stiffness: Minimum 20 MN/m³ (for impact sound insulation if required). Thermal resistance: As required by Part L Building Regulations. Downward heat loss: System insulation to limit downward heat loss to maximum 10 W/m² in accordance with BS EN 1264. |
Separation layer | Polyethylene sheet to BS 6515 or equivalent, 500–1000 gauge (125–250 micron minimum), with 100 mm minimum lap joints, sealed with appropriate tape. |
Screed | ARDEX FLOWPLUS self-smoothing liquid cement screed to BS EN 13813 and BS 8204-7. Guidance for specification option: Minimum screed depths: 40 mm domestic/ 50 mm commercial, factoring in minimum screed cover above pipes: 25 mm domestic/ 30 mm commercial. Optimal screed thickness with Red Floor Panel system: 65 mm with rigid insulation below. Manufacturer guidanceAdditional specification information for ARDEX FLOWPLUS is available and classified under the Ready-mixed levelling and wearing screeds category. |
Accessories | Polypipe Red Floor Panel underfloor heating system with 15 mm diameter polybutylene (PB) UFH barrier pipe in a spiral configuration. Polypipe Red Floor Panel underfloor heating system with 18 mm diameter polybutylene (PB) UFH barrier pipe in a spiral configuration. Manufacturer guidancePolypipe Red Floor Panel Product code: PB08576. Panel dimensions: 1.2 x 1.0 m (coverage 1.2 m² per panel). Panel height: 30 mm (castellated). Pipe spacing options: 100 mm, 200 mm, or 300 mm centres (300 mm with 18mm pipe only); insert requirements. Maximum circuit length: 120 m. Underfloor heating pipe Material: Polybutylene (PB) UFH pipe with EVOH (ethanol vinyl alcohol) oxygen barrier. Standard: BS EN ISO 15876. Warranty: 50 years from date of purchase. Maximum operating temperature: 60°C flow temperature. Maximum operating pressure: 6 bar. |
Damp proof membrane | Not required. To BS 8102, 300 micron minimum (1200 gauge) with 150 mm minimum lap joints, sealed with appropriate tape. |
Edge strips | Compressible foam strip with plastic skirt, 8–10 mm thickness. Guidance for specification option: Height: Full depth of screed plus 25 mm minimum. Application: Around all vertical elements including walls, columns, door frames, steps, pipes, and other penetrations. |
Manifold | Polypipe Stainless Steel Manifold with two stop valves and one balancing device per circuit. |
Control | Room control: Minimum one circuit per heated room for individual temperature control. |
NBS LCA helps construction professionals measure environmental impact and identify low-carbon emission products for more sustainable projects.

Material | Cementitious Plastic |
Recyclability | For disposal considerations see Health and Safety Datasheet at www.ardex.co.uk. |
Expected Life | 30 year Manufacturer guidanceScreed system: 30 years minimum (subject to reasonable wear and tear). UFH pipework: In excess of 50 years under normal operating conditions. |