Spray foam insulation failing building regulations
Why it happens here
Foam sprayed into a loft often blocks the ventilation path and fails to meet the U-value and airflow requirements of Building Regulations Part L. In Stratford's older terraces, where the roof was designed to breathe through the eaves, this is almost guaranteed.
Our approach
We remove the foam, restore the ventilation path and leave the loft ready for insulation that does comply. You get a written summary covering the rafters, felt and airflow, which is what a surveyor or building control officer needs to see.