Written Question·Department for Energy Security and Net Zero·UIN 58548

Insulation: Housing

Tabled: 10 June 2025

Answered: 13 June 2025

Named Day

Question

Sir Desmond Swayne

To ask the Secretary of State for Energy Security and Net Zero, what steps he is taking to inform the public about the level of risk of (a) moisture and (b) timber degradation following the application of sprayed foam insulant to typical domestic timber r

Answer

Miatta Fahnbulleh

The Building Safety Regulator published research in March 2024 on the moisture risks from spray foam insulation, which showed that there are many situations where moisture risks are likely to be low, including when insulations are made in line with BS 525...

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