Part O Overheating Assessments provides professional overheating compliance assessments for UK residential developments. 

Our experts analyse building designs to identify and mitigate overheating risks, ensuring full compliance with Part O of Building Regulations. 

From initial evaluations to detailed reports, we deliver reliable and actionable solutions tailored to your project. 

Contact us for expert Part O overheating assessments in Glasgow

What are Part O Overheating Assessments?

Part O overheating assessments in Glasgow are evaluations carried out to determine whether a building design meets the requirements of Part O of the UK Building Regulations.

Introduced in 2022, Part O aims to limit overheating risks in new residential buildings, ensuring they remain comfortable during periods of high temperature. 

These assessments are necessary to identify and mitigate overheating risks, which can impact occupant health, comfort, and productivity. 

Part O overheating assessments are especially important as climate change increases the likelihood of prolonged heatwaves in the UK.

How much do Part O Overheating Assessments Cost?

The average cost of Part O overheating assessments ranges from £150 to £1,000. 

This price of Part O overheating assessments in Glasgow depends on the number of units, the level of detail required, and the size of the project.

Larger developments or projects requiring detailed dynamic thermal modelling may incur higher fees. 

Investing in this assessment ensures compliance and avoids costly redesigns or penalties later in the construction process.

What are the Benefits of Part O Overheating Assessments?

By incorporating Part O overheating assessments in , your project achieves better performance, sustainability, and regulatory alignment, ensuring success both during construction and throughout the building’s lifespan.

Key benefits of Part O overheating assessments include:

• Regulatory Compliance: Ensures that your project meets Part O standards, avoiding delays in approvals or fines for non-compliance.
• Occupant Wellbeing: Reduces overheating risks to improve comfort, health, and productivity for building users.
• Energy Efficiency: Encourages passive design strategies that reduce energy consumption by limiting the reliance on mechanical cooling systems.
• Sustainability: Aligns your project with environmental goals by incorporating resilient and climate-responsive design measures.
• Cost-Effectiveness: Minimises future costs associated with retrofits or operational inefficiencies caused by poor thermal design.
• Future-Proof Design: Delivers a property prepared for the increasing risks of overheating due to climate change, enhancing its long-term value.

What does the Part O Overheating Assessments Process Involve?

The Part O overheating assessment process in Glasgow typically begins with a review of the building design, including its orientation, glazing, ventilation strategy, and thermal performance. 

Dynamic thermal modelling or simplified methods are used to evaluate the risk of overheating under typical summer conditions. 

The analysis identifies critical areas of concern and suggests mitigation strategies where needed. 

Once complete, a detailed report is issued, outlining compliance with Part O and recommendations for addressing any deficiencies.

How to Comply with Part O Building Regulations?

To comply with Part O of the Building Regulations, new residential buildings in Glasgow must limit solar gains and provide adequate ventilation to prevent overheating. This can be achieved through smaller or shaded glazing, solar control glass, and external shading.

Effective natural and mechanical ventilation strategies, including cross ventilation, night-time cooling, and sufficient window openings, are essential.

Using thermal mass helps regulate indoor temperatures, while reducing internal heat gains from lighting and appliances further mitigates risk.

Buildings must not exceed 26°C in living spaces, and CIBSE TM59 modelling may be required for compliance.

A thorough overheating assessment ensures regulations are met, creating comfortable and energy-efficient homes.

What are the Common Causes of Overheating in Buildings?

Common causes of overheating in buildings include:

• Excessive Solar Gains: Large unshaded windows, particularly south- and west-facing glazing, allow too much heat into the building.
• Poor Ventilation: Inadequate natural airflow or mechanical ventilation prevents heat from escaping, trapping warm air inside.
• Urban Heat Island Effect: Buildings in densely populated areas absorb and retain more heat due to surrounding concrete, asphalt, and limited greenery.
• Inefficient Building Design: Poorly considered layouts, lack of external shading, and high window-to-wall ratios contribute to overheating.
• Low Thermal Mass: Lightweight materials like timber or plasterboard fail to absorb and slowly release heat, leading to rapid temperature fluctuations.
• Internal Heat Gains: Heat from appliances, lighting, and human activity can raise indoor temperatures, especially in well-insulated but poorly ventilated spaces.
• Insufficient Night-Time Cooling: Without adequate night-time ventilation, buildings cannot release heat built up during the day.
• Over-Reliance on Insulation: While insulation prevents heat loss in winter, it can also trap unwanted heat in summer if not balanced with effective ventilation.
• Limited Greenery and External Shading: Lack of trees, green roofs, or reflective surfaces reduces natural cooling, increasing exposure to heat.
• Climate Change and Rising Temperatures: Increasingly warmer summers and more frequent heatwaves exacerbate overheating risks in buildings not designed for future climate conditions.

Addressing these factors through passive design, shading, ventilation strategies, and material choices is key to preventing overheating and ensuring thermal comfort.

What Solutions can be Implemented to Mitigate Overheating Risks?

Mitigating overheating risks involves both passive and active solutions. 

Passive measures include optimising window placement and shading devices, using high-performance glazing, and incorporating thermal mass into the design to absorb and release heat. 

Ventilation strategies, such as night cooling or mechanical ventilation with heat recovery (MVHR), can also play a key role. 

Landscaping features, like green roofs or external shading from trees, help reduce heat gain. 

Active cooling methods, such as air conditioning, can be used as a last resort when passive strategies are insufficient.

How Long does it Take to Complete Part O Overheating Assessments?

Part O overheating assessments typically take 1-2 weeks to complete.

The time required for a Part O overheating assessment in Glasgow depends on the project’s scope and complexity. 

Early engagement ensures the assessment integrates seamlessly with the design process.

Who Conducts Part O Overheating Assessments?

Part O overheating assessments should be conducted by specialist consultants with expertise in building performance, thermal modelling, and compliance with UK Building Regulations.

Our experts in Glasgow have experience in thermal modelling and an in-depth understanding of Building Regulations, ensuring that your project meets compliance standards while implementing effective overheating mitigation strategies.

How to Get Started with Part O Overheating Assessments?

Visit our website for expert guidance and tailored support for your project. 

The process starts with sharing your project’s architectural drawings, specifications, and site details. 

Early involvement is critical to ensure that overheating risks are addressed in the design phase, avoiding delays or costly modifications later. 

Once we receive your documentation, we will conduct an analysis using approved methods, such as dynamic thermal modelling, and provide recommendations or certify compliance as needed.

Contact us today to get started!

Find More Info

Make sure you contact us today for a number of great Part O Overheating Assessment services in Scotland.

Here are some towns we cover near Glasgow

Pollokshields, Govan, Cardonald, Baillieston, Barking

For more information on Part O Overheating Assessments in Glasgow , fill in the contact form below to receive a free quote today.