Poured-in-place polyurethane rubber is the technology behind every serious indoor sports floor, athletic track, and modern playground. Cast wet from PU binder and rubber granules at 7–15 mm thickness, the system delivers shock absorption that protects athletes from injury and impact attenuation that protects children from playground falls. Specified to EN 14904 (indoor sports) or EN 1177 (playground), with Israeli public-tender projects increasingly demanding these standards. This article walks through what a poured-PU sports floor actually is, the three layers, the EN classifications, and the brands (Conica, Polytan, BSW Berleburger/Regupol) that win at this spec level.
The system anatomy — three layers
Every serious poured-PU sports installation has the same three-layer structure, cast in sequence on a primed concrete or asphalt substrate.
Layer 1 — PU primer
Polyurethane primer rolled or sprayed onto the cleaned, profiled substrate. Function: bond promoter between the rigid substrate and the elastic layers above. Cure window: roller-applied primer typically allows ~10 minutes before the next layer must hit it. Skip the primer or apply with insufficient profile (below ICRI CSP 4) and the entire system delaminates within months.
Layer 2 — Shock-pad base layer
Recycled SBR rubber granules (from end-of-life tyre rubber) mixed with PU binder at ~10–12% binder by weight, screeded to the thickness that delivers the target Critical Fall Height (for playgrounds) or shock-absorption class (for sports halls). Typical thickness 6–11 mm depending on classification target. This layer is the engineered safety surface — the math behind it is precise. Layer thickness determines the CFH or shock class; cutting it under spec produces a system that does not meet the safety claim.
Layer 3 — Wear course (EPDM top)
Pigmented EPDM (ethylene propylene diene monomer) rubber granules mixed with PU binder at higher binder ratio (~18–20%) for UV stability and abrasion resistance. Trowelled smooth at 10–15 mm — though "smooth" is relative, the EPDM granule texture is always visible and is the source of the floor's grip. Pigment palette is wide (red, blue, green, yellow, terracotta most common). UV-stable EPDM holds colour for 8–12 years in continuous sun exposure.
Some sports halls use a 2-layer build (primer + single PU layer at 13 mm), and some playgrounds use a 4-layer build with additional intermediate shock-pad. The 3-layer reference above is the most common spec across IL sports halls and serious playground installations.
EN 14904 — Indoor Multi-Sports Classification
Indoor sports floors in EU/IL are classified by EN 14904 across three elastic classes:
| Class family | Sub-class | Shock absorption | Use case |
|---|---|---|---|
| Point-Elastic (P) | P1, P2, P3 | 25–55% | Local cushioning under the foot; ball bounce uniform; gymnastics, basketball, multi-sport schools |
| Area-Elastic (A) | A1, A2, A3, A4 | 50–75% | Wider area cushion (sprung-floor effect); ball bounce slightly reduced; competitive volleyball, handball, FIBA halls |
| Combined-Elastic (C) | C3, C5, C7 | 40–55% | Hybrid of point and area; school/club gymnasium standard; the most common IL public-school sports hall class |
The number in the sub-class indicates the level — P3 is more cushioned than P1, A4 more than A1. Higher cushioning protects athletes but reduces ball bounce uniformity. The EN 14904 specification chooses class based on intended sport:
- School / club gymnasium (multi-sport): Combined-Elastic class C3 or C5
- FIBA basketball court: Area-Elastic A class for sprung-floor effect, ball bounce close to wood-floor reference
- Volleyball-priority hall: Area-Elastic A3 or A4 for landing protection
- Gymnastics / martial arts: Point-Elastic P2 or P3 for localised cushioning
EN 1177 — Playground Impact Attenuation
Outdoor playground PU floors are classified by Critical Fall Height (CFH) per EN 1177. CFH is the maximum drop height from which g-max stays under 200g and HIC (Head Injury Criterion) stays under 1000. Both thresholds are designed to keep impact below life-threatening levels.
CFH is set by shock-pad layer thickness, not by top coat:
| Total PU system thickness | Critical Fall Height | Typical use |
|---|---|---|
| 40 mm | 1.5 m | Toddler play area, minimum protection |
| 60 mm | 2.0 m | Mid-range school playground |
| 80 mm | 2.5 m | Public playground with climbing equipment |
| 110 mm | 3.0 m | Heavy-equipment playground, adventure play |
The numbers are project-specific — manufacturer-published tests determine the exact thickness for a given CFH. For IL public-sector playground tenders, the CFH must be specified explicitly and the manufacturer's test certification submitted.
The brand landscape — Conica, Polytan, BSW
Three European brands dominate poured-PU sports floor specification in IL:
Conica (Switzerland)
CONIPUR HG — indoor multi-sport hall system (2–3 mm PU on elastic layer, 7–13 mm total). Common spec for IL school gymnasiums.
CONIPUR SP / CONIPUR EPDM — outdoor athletics track (13 mm two-layer PU). Used for serious athletic facilities. World Athletics certified at top tier.
Strong IL channel through specialty sports-flooring importers. Documentation available in EN/DE/IT/FR but generally not Hebrew. conica.com
Polytan (Germany)
Rekortan PUR — indoor PU sports hall system. EN 14904 P/A/C classification across SKU range.
PolyPlay — outdoor athletics, World Athletics-class facilities.
Polytan is the brand specified at international-tournament facility level. Their reference list includes IAAF World Championships venues. polytan.com
BSW Berleburger / Regupol (Germany)
Regupol brand — playground tiles (25–100 mm) and poured systems (40–110 mm). DIN EN 1177:2008 + TÜV certified across CFH range.
Regupol America's aktiv / aktivplus / aktivpro / TC CAD — fitness, weight rooms, indoor track. ASTM F2772 sport-class certified.
The brand most commonly specified for playground installations in IL public-sector work. Strong CFH documentation that municipal procurement requires. berleburger.com
IL specification realities
Three specifics for IL projects:
- Public-sector tender language. IL school and municipal tenders typically reference EN 14904 (sports) and EN 1177 (playgrounds) with specific class targets. The class is usually C3 or C5 for school halls, CFH 2.0–2.5 m for school playgrounds. Tender language matters — specifying "rubber playground floor" without class produces wide bid variance and weak guarantees.
- Cost range [verify]:
- Indoor multi-sport hall (Conica HG / Polytan): ₪450–₪750 / m² supplied-and-installed
- Outdoor athletics track (Polytan/Conica EPDM): ₪500–₪900 / m²
- Playground PIP (40–80 mm system, CFH ≤ 2.0 m): ₪380–₪650 / m²
- Recoat / refresh wear course (every 8–12 years): ₪120–₪220 / m²
- Service life and maintenance. Sport poured-PU: 15–25 years structural, repaint/refresh every 8–12 years. Playground PIP wear course: 7–12 years before EPDM granule loss requires re-broadcast or full re-cap. Standard supplier warranty: 5–8 years against wear/delamination.
Where poured-PU is wrong
The system is engineered specifically for shock absorption and impact attenuation. It is the wrong specification for:
- Heavy industrial point loads. Forklifts, pallet trucks, racking — these crush the elastic layers. PU-cement industrial flooring is the answer for heavy industrial.
- Wet wet-room conditions. Pool surrounds, shower zones — poured-PU is not engineered for daily wet exposure. Use Topciment Atlanttic or safety vinyl.
- Hospital wards / commercial kitchens. Slip resistance is not the priority — landing protection is. Safety vinyl (Altro / Polyflor) is the correct system.
- Decorative / hospitality aesthetic. Poured-PU reads as engineered-sport-floor. It is not a luxury aesthetic. Use microcement or polished concrete for design-led commercial.
Final read
Poured-PU rubber is the right specification for serious indoor sports halls, athletic tracks, and playgrounds — applications where the safety surface is the design intent. Pick the EN classification target first (P/A/C class for sports; CFH for playgrounds). Pick the brand within that class (Conica / Polytan / BSW). Verify IL applicator availability before tender close. The system is forgiving of brand choice within the class but unforgiving of class-spec compromise.
Related: Five-question decision tree · 15 Israeli use cases (sport hall + playground sections) · Substrate preparation for poured systems · Standards glossary (EN 14904 + EN 1177).
Sources
- EN 14904:2006 — Surfaces for sports areas. Indoor surfaces for multi-sports use. Specification.
- EN 1177:2018 — Impact attenuating playground surfacing. Determination of critical fall height.
- ASTM F1292 — Standard Specification for Impact Attenuation of Surfacing Materials Within the Use Zone of Playground Equipment.
- Conica corporate (Switzerland)
- Polytan corporate (Germany)
- BSW Berleburger / Regupol (Germany)
- Regupol America (sports + fitness)