Ventilation for Domestic Retrofit

What are the ventilation-related requirements of PAS 2035?

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Ventilation plays a critical role in retrofit. 

Our downloadable guide helps you understand the process of correct ventilation according to the requirements of PAS 2035.

  • What is ventilation for, and how do you assess an existing system to ensure it is adequate?

  • What are the seven most common types of ventilation systems used (and their advantages and disadvantages)?

  • What are the factors to consider when specifying ventilation, and how do you apply the Four C’s? 
Dr Peter Rickaby technical author, pas 2035

“If we retrofit any insulation or airtightness measures, then we must compensate for the lost infiltration and air leakage by assessing the existing ventilation (if any) and upgrading (if necessary), to an adequate system. 

The maxim is, ‘No Insulation Without Ventilation’.”

Dr Peter Rickaby, Technical Director, The Retrofit Academy

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