Rising damp & bridging · Bedford

Air brick installation and render cut back to DPC level

External wall in Bedford with new air bricks installed and render cut back to damp-proof course level to prevent bridging
Customer concern
Damp low down internal walls where external render bridged the damp-proof course.
Findings
The external render continued below the damp-proof course, bridging it and allowing ground moisture to track past the DPC into the wall. Sub-floor ventilation was also restricted.
Remedial works
The external render was cut back to above damp-proof course level to remove the bridge, and air bricks were installed to restore sub-floor ventilation.
Outcome
The damp-proof course is no longer bridged and the sub-floor is ventilated, addressing the identified cause.

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