Energy-Efficient Roof Renovation – Insulation to GEG Standards

Lower heating costs, improve living comfort

Request energy consultation

What Is Energy-Efficient Roof Renovation?

Energy-efficient roof renovation involves the retrofitting of insulation to steep and flat roofs in accordance with the Building Energy Act (GEG), to reduce heat loss through the roof.

The roof is one of the biggest weak points for energy efficiency in older buildings. Professional insulation reduces heating costs and improves living comfort.

GEG Requirements

The Building Energy Act sets requirements for the energy performance of roofs, particularly during renovations. Steinfurther Bedachungen carries out all insulation work in full compliance with GEG standards.

Insulation Methods Overview

Above-Rafter InsulationAbove the rafters. Highest insulation performance, no thermal bridges.
Between-Rafter InsulationBetween the rafters. More cost-effective, suitable for existing attic conversions.
Below-Rafter InsulationAdditional layer below the rafters. Often supplements between-rafter insulation.

For flat roofs: tapered insulation to specification.

Subsidy Support

Steinfurther Bedachungen assists with subsidy applications. Current subsidy programmes change regularly – we advise you on which options are available for your project.

Steep and Flat Roofs

Energy-efficient renovation applies to both steep roofs and flat roofs.

Frequently Asked Questions

What does the GEG require for roof renovation?

The Building Energy Act (GEG) sets minimum requirements for roof thermal protection, particularly during renovations. Defined U-value limits apply.

Above-rafter or between-rafter insulation – which is better?

Above-rafter insulation provides the highest insulation performance but is more complex. Between-rafter insulation is more cost-effective and often the more practical solution for existing attic conversions.

What subsidies are available for roof insulation?

Various subsidy programmes are available for energy-efficient roof renovations. The conditions change regularly. Steinfurther Bedachungen assists with subsidy applications.

Thermal image of a house: clearly visible heat loss through the roof

Request Energy Consultation

Want to renovate your roof for energy efficiency and benefit from subsidies?

Request consultation