CONSTRUCTION DEFECTS


WHY SOME WINDOW FLASHING FAILS

 

Summer 1995

Common Problems:

  • Incorrect sequencing of flashing installation resulting in mislapped building paper and BCRFM (barrier-coated, reinforced flashing material), often identified as Sisalkraft paper.
  • BCRFM paper cut too short or missing.
  • Use of improper materials in window flashing such as using cut-up building paper instead of BCRFM paper.
  • Omission of butyl sealant bead around bottom and slides of window units between the flange and BCRFM paper.
 

Potential Damage:

  • Water intrusion into the framing system and living spaces resulting in:
    • Dryrot in the wood-framing system.
    • Water-strained gypsum board.
    • Damaged flooring materials, carpeting and interior furnishings.
 

Proper Solutions/Construction for Aluminium and Vinyl Window Flashing:

  • Installation should be per Uniform Building Code Section 1707(b).
  • Use only approved materials.
  • Follow window manufacturers' details for installation of flashing materials.
  • Follow industry standard details, such as those of the Plastering Information Bureau.

Step 1:
Application of Flashing Strips

Step 2:
Installation of Window Unit

Step 3:
Installation of Building Paper and Finishes

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.

Contact The Miller Law Firm

[ASPHALT] [BALCONY/DECK FAILURE] [CRAWLSPACES] [FIREPLACES] [FLOORS/CEILING FAILURE]
[NOISE INTRUSION] [ROOF LEAKS] [TILE ROOF LEAKS] [FLAT ROOF LEAKS] [SHOWER INSTALLATION FAILURE]
[SOIL SUBSIDENCE] [SHEAR WALLS] [BELOW GRADE WALLS] [RETAINING WALLS] [HOLD DOWNS] [WINDOWS]
[WINDOW FLASHING FAILURE] [SLIDING GLASS DOORS] [WOOD ROT]

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