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BREEAM (Building Research Establishment Environmental Assessment Method) is a highly esteemed, long-established system for assessing the sustainability of buildings and infrastructure projects globally. Originating in the UK in 1990, it covers comprehensive assessment categories such as energy, water, and health and wellbeing, encouraging sustainable practices across various project types. The

When deciding whether to conduct your own Standard Assessment Procedure (SAP) calculations or engage a professional, numerous factors must be considered, including the intricate and technical nature of SAP calculations required for assessing a dwelling’s energy efficiency. Although manual calculations are possible, they are often laborious and susceptible to errors,

Airtightness testing and pressure testing are crucial methodologies for assessing air leakage in buildings, with each offering distinct approaches and benefits. Pulse testing, a modern technique, operates at lower pressure levels with minimal disruption, making it suitable for existing buildings and quick assessments. Conversely, blower door testing, a more traditional

The relationship between SAP (Standard Assessment Procedure) calculations and air tightness testing is vital for ensuring that buildings in the UK adhere to energy efficiency standards set by government regulations. SAP calculations evaluate various aspects of a dwelling’s energy profile, including insulation, heating, and ventilation, while air tightness testing specifically

Maintaining airtightness in a building is essential for enhancing energy efficiency, thermal comfort, and indoor air quality. To ensure airtightness over time, meticulously seal the building envelope using flexible caulks and sealants, and improve window and door seals with draught-proofing strips. Properly sealing HVAC duct penetrations and insulating wall and

SAP calculations for cooling systems in the UK rely on standardised assumptions, such as operating six hours daily at 24°C for three months, to simplify energy efficiency evaluations. However, these assumptions may not accurately reflect real-world usage, as actual conditions often demand lower set points and longer operation due to

An airtightness test certificate remains valid as long as the building’s airtightness characteristics remain unchanged, though there is no universal expiry date for the certificate itself. However, the certification for testers, such as those from the Federation of European Heating and Airconditioning Associations, must be renewed every three years, contingent

Performing a DIY air tightness assessment can help identify basic air leakage issues, but it is often prudent to engage professional air tightness testers to ensure compliance with building regulations and achieve precise measurements. Professional assessments are crucial for obtaining certifications, managing complex air leakage problems, and designing effective HVAC

Achieving airtightness in large commercial spaces presents a range of challenges, chiefly impacting energy efficiency and costs. Significant energy losses from air leakage can lead to increased heating and cooling expenses, with potential annual energy cost savings ranging from 2% to 36% for improvements, particularly in heating-dominated climates. However, many