Technical sheet · Ventilated traditional roof

Traditional Mallorcan Roof System

Exploded ventilated traditional Mallorcan roof build-up showing eight numbered layers from curved clay tiles to timber roof structure. 1 2 3 4 5 6 7 8

System Overview

This ventilated roof build-up combines traditional Mallorcan curved clay tiles with modern insulation, moisture control and professional detailing. The system is designed to improve thermal performance, support a healthier indoor climate and preserve the architectural character of Mallorca.

Why EcoViva

  • Independent renovation guidance
  • Your interests come first
  • Local Mallorca expertise
  • Project-specific technical verification
  • Guidance from first question to completion

Eight-Layer Roof Build-Up

  1. 1

    Traditional Mallorcan curved clay tiles

    Traditional clay roof finish that protects the roof and preserves its local architectural character.

  2. 2

    Tile battens

    Horizontal timber battens that support and position the roof tiles.

  3. 3

    Counter battens / ventilation battens

    Vertical battens that create the drainage and ventilation cavity beneath the tile battens.

  4. 4

    Waterproofing layer

    Breathable roofing underlay or continuous waterproof membrane selected according to roof pitch and project conditions.

  5. 5

    PIR thermal insulation

    Continuous PIR insulation improves thermal performance, reduces heat transfer and helps lower heating and cooling costs.

  6. 6

    Vapour control layer

    Used where required according to the verified hygrothermal design to help control moisture migration through the roof build-up.

  7. 7

    Structural roof deck

    Timber-based structural roof deck as shown in the approved detail.

  8. 8

    Roof structure

    Timber rafters supporting the complete roof build-up.

Key Technical Principles

Roof pitch

The roof pitch determines the permitted waterproofing system and the required tile overlap.

Waterproofing selection

The waterproofing layer is selected according to roof pitch, exposure conditions and manufacturer requirements.

Ventilated roof

Continuous ventilation beneath the tiles helps remove moisture, reduces condensation risk and supports healthier indoor conditions.

Thermal performance

Continuous PIR insulation improves thermal performance, reduces heat loss and helps lower heating and cooling costs.

Installation principles

Correct detailing, compatible materials and professional installation are essential for a durable roof system.

Tile Fixing Options

Fixing is selected according to wind load, tile type and manufacturer requirements.

  1. Stainless-steel tile clip Stainless-steel tile clip
  2. Stainless-steel fixing screw Stainless-steel fixing screw
  3. Ventilated eaves comb Ventilated eaves comb

Key Benefits

Designed for Mallorca

Adapted to the local climate and traditional architecture.

Lower energy costs

Continuous insulation reduces energy demand and helps lower heating and cooling costs.

Better energy performance

The system can contribute to a better EPC or energy-performance rating.

Healthier indoor climate

Ventilation and moisture control help reduce humidity, condensation and mould risks.

Built on experience

Professional design, installation knowledge and project-specific verification.