Airtightness

Where and how to buy an MVHR ventilation system in the UK

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Checking the F7 and G4 filters of the Zehnder Q350 MVHR

If you’re building or renovating your home and making the property’s building fabric more insulated and airtight then you may be wondering where, how and from which company to buy MVHR (it stands for Mechanical Ventilation and Heat Recovery) system products. Also known as Heat Recovery Ventilators (HRV), the premium brands in MVHR systems are … Read more

Completing my ATTMA Airtightness Testing Training for New Builds and Forensic Testing

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Intello membrane on a roof that HSL tested for airtightness forensic analysis

If you would like to learn more about what’s involved during a building airtightness test in the UK, please read on. If you have a new build project or renovated building which requires an airtightness test for any reason, please contact me on Patrick [@] Heatspaceandlight.com for pricing. Any new build in the UK has … Read more

Why double-glazing doesn’t solve your comfort issue – and can make it worse

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See if any of this sounds true to you. You live in a typical English home. It’s made of brick, it has timber-frame and single-glazed or double-glazed windows and woolly yellow insulation stuffed into the rafters in the loft. It was built after the first or second world war in post-boom Britain. You spend £800 … Read more