Fall 1995
Common Problems:
- Improper flashing.
- Inadequate vertical offset between the interior and
exterior surfaces.
- Lack of a bituminous or plastic protection barrier between
the aluminium threshold and the concrete or sheet metal
substrate.
Potential Damage:
- Water intrusion into the framing system and living spaces
resulting in:
- dryrot in the wood framing system.
- Water-stained gypsum board.
- Damaged flooring materials, carpeting and interior
furnishing.
- Corrosion of aluminium threshold due to lack of protection
barrier.
Proper Solutions:
- Provide a 1-1/2 inch vertical offset between the interior
and exterior surfaces.
- Provide a weather-tight, fully sealed or seamless sill/jamb
flashing system that protects the corners of the threshold
and counterflashes the deck system.
- Provide a bituminous or plastic protection barrier between
the aluminium threshold and the concrete or sheet metal
substrate.
Information provided by Building Analysts, a full-service architectural and engineering firm with many years of experience in construction litigation. Their services include: architectural and structural investigations, repair recommendations, preparation of exhibits and expert testimony. Contact Building Analysts at (619) 234-8153.
