Foam trapping condensation against roof timbers
Why it happens here
Most Madeley lofts were sprayed directly onto the underside of the roof felt with no ventilation gap. That seals the roof space completely. When warm air rises from the house and meets a cold roof, the moisture has nowhere to escape, so it condenses on the timbers.
Our approach
We remove the foam in sections and check every rafter with a moisture meter as we go. Where timber has started to soften, we cut back to sound wood and treat it. We also advise on eaves ventilation so the roof can dry out properly once the foam is gone.