Overheating Assessment

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Stay Cool and Compliant in Manchester: Expert Overheating Assessments by ARMEEC for Total Peace of Mind

Our skilled Energy Consultants carry out Overheating Risk Assessments for homes and commercial buildings, as required by Approved Document O. Whether you're in Manchester, Birmingham, or London, our in-house team completes CIBSE TM59, TM52, or Simplified Assessments and gives clear advice on affordable ways to stay compliant and keep people comfortable. Working on a project in Liverpool? We’re happy to help. Get in touch today to talk through your needs.

What is an Overheating Assessment?

An overheating assessment helps ensure buildings stay cool and safe as UK temperatures rise. With climate change making heatwaves more common, it’s important to keep your space comfortable, for both health and wellbeing.

Whether you’re in Manchester or working on a project in Birmingham, our team uses TM52 for commercial buildings and TM59 for residential ones. These methods examine how your building handles heat based on materials, layout, and ventilation.

Modern airtight buildings, while great for saving energy, can trap heat. That’s why proper airflow, smart window placement, and managing sunlight are now more important than ever.

From flats in Liverpool to office spaces in London, our assessments focus on how your design choices affect indoor temperature and how to fix overheating before it becomes a problem.

Key factors considered during an overheating assessment include:

Building Orientation and Design:

The way your building faces and the materials used can make a big difference. A home in Manchester with south-facing windows, for example, may let in more sun and heat.

Ventilation:

Good airflow is essential. Whether it’s windows or mechanical systems, homes in cities like Birmingham need proper ventilation to stop heat from building up, especially in airtight, modern buildings.

Glazing and Window Placement:

Too much glass or poorly placed windows can turn a room into a greenhouse. In places like London, where sun exposure can be high, this is a major factor in overheating.

Thermal Mass:

Some building materials can absorb heat during the day and release it later. In Liverpool and beyond, using the right materials can help keep indoor temperatures stable during hot spells.

Occupancy and Behaviour:

How often people use a space, and how many people are in it, also matters. A busy home or office will naturally warm up faster, so this is always part of our checks.

When is an Overheating Assessment Required?

If you’re building something new or making big changes to an existing property, especially in places like Manchester or London, you’ll likely need an overheating assessment. This is particularly important for energy-efficient buildings, which are great at keeping heat in but can sometimes get too warm in summer.

Properties with large windows or those in warmer city areas, such as Birmingham or Liverpool, are at higher risk. If there’s a chance the space might feel too hot for comfort, it’s worth checking for overheating.

Approved Document O of the UK Building Regulations requires most new homes and large refurbishments to have this assessment to ensure comfort and safety during hot weather.

So, whether it’s a new build or a major renovation, this test helps make sure the design includes the right ventilation, shading, and cooling features, keeping your property comfortable and healthy all year round.

Explore Other Extensive Range Of Services

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Two Overheating Assessment Services to Suit Your Project Needs

We know that overheating can affect how comfortable and efficient your building feels. That’s why we offer two clear types of overheating assessments to suit different projects. Whether you're designing a simple flat in Manchester or managing a more complex build elsewhere, we’ll help make sure your building stays cool, energy-efficient, and fully compliant with the latest Building Regulations.

Service 1

Simplified Method

Our Simplified Method is ideal for straightforward buildings like small homes or offices in places like Birmingham. It’s quick, affordable, and avoids the need for complex modelling. Perfect for designs with normal glazing and low overheating risk.

What’s included in the Simplified Method?

Quick Risk Assessment

We do simple checks based on window size, shading, and which way your building faces.

Ideal for Simple Designs

Best if your design is simple and doesn’t have loads of glass.

Compliance with Part O

This helps make sure your building follows Part O rules for summer comfort.

Early Detection

We flag any risks early so you can fix them before building starts.

Cost-Effective

Ideal if your project needs a basic and affordable overheating check.

This method works well for most homes in low-risk areas. If problems come up, we’ll let you know if a more detailed test is needed.

Service 2

Dynamic Thermal Modelling

For detailed designs, buildings with lots of glazing, or sites in warmer parts of London or Manchester, Dynamic Thermal Modelling is your best bet. It uses expert software and TM52/TM59 reports to assess overheating risks properly.

What’s included in Dynamic Thermal Modelling?

Full Thermal Check

We look at how your building behaves with heat, sunlight, airflow, and materials across different times of the year.

Great for Tricky Designs

Ideal if you’ve got big windows, a complex layout, or your building is in a hot area.

Follows TM59 Rules

We follow the latest CIBSE TM59 rules to give accurate and trusted results.

Smart Software

We run high-tech simulations to see where heat might build up and how to fix it.

Improves Design

You’ll learn how to boost comfort, avoid overheating, and save on energy bills.

Informed Decision-Making

We’ll recommend what to tweak, maybe add blinds, more vents, or reduce window size.

It’s perfect for developers or architects who need deep insight. Whether it’s a flat in Liverpool or an office in Birmingham, this method helps you stay compliant and cool, literally.

Keep your london project cool and compliant. Book your Overheating Assessment with ARMEEC today.

Why Do We Succeed

Need an Overheating Assessment? Here's How We Can Help!

Initial Consultation

Initial Conversation We begin with a friendly chat to understand your project. Whether it’s in Manchester or Birmingham, we look at the building use, window designs, layout, and goals to spot any early overheating risks.

Review Design & Gather Data

Next, we carefully review your building drawings. We focus on things like glazing size, shading, ventilation, insulation, and how the building faces. In places like London or Liverpool, these small details can make a big difference.

Running the Modelling

Using smart software, we simulate your building’s performance throughout the year. Following TM59 and TM52 standards, we test how your home or office will cope with heat and sun.

Checking Compliance

We compare your design against the rules, spotting any rooms at risk, like a south-facing lounge with poor airflow. This helps you avoid problems later with Building Control.

Simple Solutions, Expert Advice

If your design needs tweaks, we suggest easy, cost-effective fixes, such as better shading or adding vents, so your building stays cool and comfy, even during heat waves.

Final Report & Ongoing Support

You get a ready-to-submit report with all the facts and figures. We’ll also be around if the council has questions or if your plans change. Smooth and stress-free.

ARMEEC: Your First Choice For Overheating Assessments

Proven Expertise

With years of hands-on experience, our certified consultants carry out overheating assessments across the UK, including homes in Manchester and large commercial builds in Birmingham.

Accurate & Reliable Results

Using up-to-date tools and trusted methods, we deliver clear and reliable reports that meet all building rules and help keep your design energy-smart.

End-to-End Support

From your first call to final approval, we’re here to guide you. Whether you’re in London or Liverpool, we make the process easy and hassle-free.

Sustainabilite Approach

We focus on smart design and energy-saving ideas to help you build responsibly, cutting down on heat risk while staying eco-friendly.

Tailored Solutions

Every building is different. We adapt our advice and assessments to suit your layout, budget, and planning goals, helping you meet the rules without extra stress.

Frequently Asked Queries About Overheating Assessment

Which type of Overheating Risk Assessment do I need?

The right assessment depends on your building and where it’s located. For homes in Manchester or London, TM59 is usually needed. Commercial buildings in places like Birmingham or Liverpool may follow TM52. For simple projects, a basic method might be fine. We’ll help you choose the best one.

What is the criteria for a TM59 Assessment?

TM59 sets limits to stop homes from getting too hot. Living rooms can’t go over comfort limits for more than 3% of the time. Bedrooms must stay cool at night. These checks make sure your home meets Part O of the Building Regulations.

What can I do to mitigate an Overheating Risk?

To keep buildings cooler, rules suggest using things like shutters, blinds, or smaller south-facing windows. Thoughtful design, like balconies or deep window frames, also helps. We work across the UK to find smart, affordable ways to keep your building comfortable.

How long does an Overheating Risk Assessment take to complete?

It usually takes 1 to 3 weeks, depending on your building’s size and how soon we get your design details. We aim to work fast, whether your project’s in Liverpool, Birmingham, or anywhere else, to keep things moving without delay.

Can I avoid an Overheating Risk Assessment if I use energy-efficient designs?

No, even eco-friendly buildings can overheat, especially with big windows or lots of insulation. If you're working on a modern home in London or a city flat in Manchester, the assessment helps ensure you’re not just energy smart but also staying within the rules.

Let’s Keep Your Home Cool – Get in Touch

Tell us about your project and any overheating concerns. Fill in the form and our team will be in touch with expert guidance and a tailored solution.

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Overheating Assessments