Energy-Efficient Roof Renovation – Insulation to GEG Standards

Lower heating costs, improve living comfort

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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, quicker to carry out.
Between-Rafter InsulationBetween the rafters. Suitable for existing attic conversions.

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, avoids thermal bridges, and is quicker to carry out. Between-rafter insulation is more complex to install, but often remains the more workable solution for existing attic conversions. Which option works out more economical depends on the individual case – we assess that on-site.

Who advises on subsidies for roof insulation?

Various subsidy programmes are available for energy-efficient roof renovations, and their conditions change regularly. Advice on these and the application itself are handled by an energy consultant – this is not part of a roofing company's remit. We provide you with the details of the planned insulation that the application requires.

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

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Want to renovate your roof for energy efficiency?

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