New Builds


New builds and developments legally require a specific level of insulation in key areas of the property, such as your roof, walls and floors.


Insulation Regulations for New Builds

When engaging in a project such as constructing a new building, it becomes imperative to adhere to and satisfy specific regulations pertaining to insulation for new builds. Compliance with these regulations is essential to successfully finalise your new construction endeavour. Significantly, these insulation regulations for new builds encompass various aspects of your project. For instance, distinct insulation regulations are applicable to walls, cavity walls, flat roofs, pitched roofs, loft insulation, floor insulation, and more.


Maximum U-Value of 0.20 W/m2K

Pitched Roof

Maximum U-Value of 0.13 W/m2K

Flat Roof

Maximum U-Value of 0.13 W/m2K

Cavity Wall

Maximum U-Value of 0.30 W/m2K

Solid Wall

Maximum U-Value of 0.18 W/m2K


Maximum U-Value of 0.13 W/m2K

Insulation Benefits

Benefits of Insulation for New Builds

Having sufficient insulation in your new builds is not only a legal standard but can also help the attractiveness of your properties to potential buyers.

Save Money

Roof, wall and floor insulation helps property owners rely a lot less on consuming energy, which, in-turn, lowers monthly energy bills every month.

Reduce Carbon

By insulating key areas such as cavity walls and roofs with sufficient insulation, you can save up to 35% of energy-loss, reducing your carbon emissions.


Developing properties that are energy-efficient make your project more sought-after by potential buyers as they will reap the benefits of the insulation.


Home insulation in walls adds to soundproofing which provides greater comfort for those living inside and in surrounding properties.


Loft & Roof Insulation

Your roof and loft area is one of the biggest opportunities that you can utilise to reduce energy waste and to make your property more energy efficient. By installing quality insulation, you can reduce heat loss by up to 35% and comply with new UK regulations for new builds.


Cavity Wall Insulation

Cavity wall insulation is another core area of a property that can help developers meet UK legal regulations of minimum U-values. New build cavity walls need a minimum U-value of 0.30 W/m²·K in order to comply with the law. Check out our service to see how we can help you. 


Comply with UK Legislation

To ensure comprehensive adherence to new build regulations, your project must align with standards across all types of insulation integrated into your new construction. A primary factor to consider at the project’s outset involves maintaining a minimum level of thermal insulation, quantified using the ‘U-Value’ measurement. Notably, the UK government has established differing standards for each country within the UK, spanning England, Scotland, Wales, and Northern Ireland. Therefore, it is vital to verify that the insulation of your new dwelling aligns with the specific criteria of the location in which the project is situated.


Avoid being fined


Sough-after property


Minimum of C by 2025


Get Quality Insulation

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Are you a Developer?

If you are planning a new project or currently working on one, do not forget to meet the minimum requirements for insulation across the dwelling’s key areas. 

Contact our professionals today and work with us on your new build project.