What information helps assess spray foam in a loft?
Record whether the foam is on the underside of the roof or another surface, whether it appears damaged or damp, and whether any areas can be viewed without disturbing it. Foam type, roof construction, ventilation and the condition of the timbers all affect an assessment. Do not cut or pull it away before understanding what it is attached to. A wider insulation review can help put the findings in context.
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