Cork bark harvested from cork oak — natural breathable insulation for heritage buildings

Heritage Buildings — Ireland

Breathable Solution for Cold Walls, Condensation & Moisture

A thin, vapour-permeable cork coating designed for solid wall and heritage buildings, improving thermal performance without trapping moisture or altering the building fabric.

Vapour-PermeableSolid Wall SuitableHeritage CompatibleFabric-First ApproachMinimal Intervention
The Problem

Why Traditional Methods Fail in Older Buildings

Solid wall and historic buildings behave differently to modern cavity construction.

Adding impermeable systems or insulated boards can trap moisture within the wall structure, leading to long-term deterioration, internal damp issues, and loss of breathability.

Maintaining vapour permeability is critical.

VIPEQ Thermal Corkspray applied to solid wall — breathable thermal coating
Before and after — VIPEQ breathable cork coating on heritage building wall
A Fabric-First Approach

A Fabric-First Approach

VIPEQ Thermal Corkspray is applied in a thin layer (approx. 3–6mm), forming a breathable thermal coating that works in harmony with the building fabric.

It improves internal surface temperature while allowing moisture vapour to pass through the wall naturally.

Key Benefits

Key Benefits for Restoration & Retrofit

Vapour-permeable system suitable for solid walls
Maintains breathability of traditional construction
Minimal build-up (3–6mm)
No alteration to skirting, window boards or internal features
Flexible coating reduces cracking on existing substrates
Suitable for lime-rendered or painted surfaces (with preparation)
Typical Applications

Where It's Used

Solid wall buildingsPeriod and heritage propertiesStone and lime-rendered facadesConservation and retrofit projectsInternally cold walls with condensation risk
Comparison

Comparison with Internal Drylining

Breathable Cork Coating

Thin application
Vapour-permeable
Works with existing fabric
Minimal disruption

Drylining / Insulated Boards

Impermeable layers
Risk of trapped moisture
Loss of internal space
Requires significant alteration
Professional Feedback

What Professionals Say

"Maintaining breathability was key on this project. The cork system allowed us to improve internal comfort without compromising the building fabric."

"Useful solution where traditional insulation methods were not suitable due to moisture risk."

FAQ

Frequently Asked Questions

Discuss Your Project

Discuss Your Project

We understand every building is different. Send drawings, photos or details and we can advise on suitability.