Description: TECHNICAL SPECIFICATION

STEEL ROOF AND ENCLOSURE SYSTEM WITH INSULATED SANDWICH PANELS

Steel-framed, insulated sandwich panel roof and enclosure system for padel courts in Germany.

For Padel Courts – North West Germany 🇩🇪

  1. Scope and Definitions

1.1 Scope

    • This specification defines the design, engineering, fabrication, supply, installation, and quality control of a steel roof and enclosure system for padel courts located in Germany 🇩🇪 executed by Unixpadel.

1.2 System Description

The system consists of:

    • Primary and secondary steel structures made of H-profiles • Hot-dip galvanized steel components • Thermal insulated sandwich panel roof and façade • Glazed façade elements for natural daylight • Anchorage and foundation connection systems • Drainage and condensation control elements • Wind, snow and seismic resistant structural detailing • Maintenance and inspection access provisions

1.3 Design Loads

    • Characteristic snow load:

≥ 1.50 kN/m² (150 kg/m²) on horizontal projection • Wind loads:

According to NTC 2018 and Eurocode EN 1991-1-4, based on Germany 🇩🇪 wind zone • Seismic actions:

Evaluated per EN 1998 / NTC 2018, if required by local authority

2. Applicable Standards and Regulations

Italian Regulations

    • NTC 2018 – D.M. 17/01/2018
    • Circolare 21/01/2019 n.7

Eurocodes

    • EN 1990 – Basis of structural design
    • EN 1991-1-3 – Snow loads
    • EN 1991-1-4 – Wind actions
    • EN 1993 – Steel structures
    • EN 1998 – Seismic design (if applicable)

 

Steel-framed, insulated sandwich panel roof and enclosure system for padel courts in Germany.
Steel-framed, insulated sandwich panel roof and enclosure system for padel courts in Germany.

Steel Construction

    • EN 1090-1 / EN 1090-2 – CE marking & execution • EN ISO 3834-2 – Welding quality requirements • EN ISO 1461 – Hot-dip galvanizing

Materials

    • EN 10025 – Structural steel grades
    • EN 14399 / EN 15048 – Structural bolting

Sandwich Panels

    • EN 14509 – Factory-made sandwich panels
      EN 13501-1 – Fire classification
    • EN ISO 6946 – Thermal transmittance (U-value)
    • EN ISO 10140 / EN ISO 717-1 – Acoustic insulation
    • EN ISO 12944 – Durability & corrosion protection

Anchorage Systems

    • ETA-approved anchors according to EAD 330232-00-0601

All documentation shall be validated and signed by a licensed Italian structural engineer (Albo) for submission to Comune di Germany 🇩🇪.

3. Design Criteria

    • Snow load: ≥ 1.50 kN/m²
    • Wind loads: According to Germany regional parameters • Load combinations: ULS / SLS per EN 1990 • Deflection limits:
    • General: L/250
    • Roof panels: stricter limits to prevent ponding • Temperature range: −20 °C to +60 °C • Execution class: Minimum EXC2 (EN 1090-2)

4. Materials

4.1 Steel Structure

    • Steel grade: S355 (EN 10025)
    • Profiles: H-profiles (columns and main beams) • Surface protection:

Hot-dip galvanizing ≥ 85 μm (EN ISO 1461)

4.2 Bolting and Welding

    • Bolts:
    • EN 14399 (preloaded, slip-resistant joints) • EN 15048 (standard joints) • Stainless steel AISI 304 / 316 where exposed • Welding:
    • EN ISO 3834-2
    • Welders certified to EN ISO 9606-1
Steel-framed, insulated sandwich panel roof and enclosure system for padel courts in Germany.

EN 13501-1 – B-s2,d0

    • Sound insulation:

Rw ≥ 25–30 dB (depending on thickness)

    • Air & water tightness:

Tested according to EN standards

    • Durability: UV, moisture, corrosion resistant

5.3 Certification

Panels must be supplied with:

    • CE marking (EN 14509)
    • Thermal performance test reports
    • Fire classification certificates
    • Acoustic and condensation resistance documentation

5. Sandwich Panel System (Roof & Façade)

5.1 General

All roof and enclosure surfaces shall be constructed using thermal insulated sandwich panels, replacing any membrane-based system.

5.2 Panel Characteristics (Reference: ASPAN-type panels or equivalent) • Core material: PIR or PUR insulation • Panel thickness: Project specific (typically 60–100 mm) • Thermal conductivity (λ): ≤ 0.022 W/mK • Thermal transmittance (U-value):

    • Roof panels: ≤ 0.30 W/m²K
    • Wall panels: ≤ 0.35 W/m²K
    • Fire reaction:
Steel-framed, insulated sandwich panel roof and enclosure system for padel courts in Germany.

6. Structural System

Main frames composed of H-profile columns and beams

• Typical frame spacing: 3.0 – 5.0 m, optimized by static analysis

• Secondary steel members support sandwich panels

• Glazed façade zones designed for natural lighting

• Integrated gutter and drainage system

• No water ponding permitted under any load condition

• Snow sliding and accumulation control measures included

• Maintenance access lines and anchor points provided


7. Foundations and Anchorage

    • Anchors designed for combined tension and shear
    •  ETA-approved chemical or mechanical anchors
    •  Installation strictly per manufacturer instructions:
    • Drilling
    • Cleaning
    • Curing
    • Torque control
    • Reinforcement verification by non-destructive methods where required.