Expert advice
When Should External Window Sealant Be Inspected?
How weather exposure, movement and access influence external perimeter sealant checks.
Exposure and movement
External perimeter joints face rain, UV, temperature changes and building movement. Inspection frequency depends on exposure, material, accessibility and known defects.
Warning signs
Check accessible joints for cracks, gaps, separation from frames or masonry, and signs of water ingress. Avoid unsafe access or intrusive testing without suitable arrangements.
Maintenance planning
Record affected elevations and arrange professional inspection or renewal where appropriate. Product and joint specifications should guide remedial materials.
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