Developments in building regulations
Modern buildings will face new challenges as an increasing number of stringent building regulations and energy efficiency codes are further implemented. The UK government has set a goal of net-zero carbon emissions by 2050. All new buildings will be highly energy-efficient, and any work on existing builds must meet these new standards. They will also work to improve overheating issues in residential buildings.
These new energy efficiency standards should help lower our energy consumption and heating bills and protect the environment in the long run. Homeowners are becoming increasingly aware of their carbon footprint and how modern buildings impact the environment. The UK’s new, highly efficient homes are expected to produce up to 80% less carbon emissions than current homes. Heating and powered buildings make up a staggering 40% of the UK’s energy usage at the moment.
What role do roof membranes play?
Roof membranes are weathering barriers installed under roofing to form a barrier against rain, wind and snow – an essential component for any building. The most common types of roof membranes are breathable and non-breathable. However, with the focus on energy-efficient buildings, breathable roof membranes are likely to play an increasingly important part.
Energy efficiency with regards to building essentially refers to how much energy, largely heat, is lost from a property. Increasing energy efficiency means that buildings are more airtight and contain warmth for longer.
Homes with high energy efficiency but poor roofing membranes often struggle with condensation and dampness. An airtight home is at a greater risk of condensation because moisture tries to escape through the roof when you heat the house. A breathable membrane allows this moisture to escape, preventing condensation and the risk of mould growth.
Breathable membranes allow water vapour to escape, thus reducing condensation and the need for additional ventilation. Although they significantly reduce the need for secondary ventilation, it is advised that eaves and ridge ventilation should still be installed as a precaution.
Vapour permeable membranes are perfect for complex roofing designs as well. For example, breathable membranes work well in structures with skylights or compartmentalised roofs. These membranes provide more design freedom and keep your roof in top condition.
So, because of the increased focus on energy efficiency, particularly in new-builds, breathable roof membranes are going to play an important role in maintaining adequate levels of ventilation and reducing the risks of condensation.