Presentation on theme: "1 2006 Building Code – Flashing Changes & Challenges Builder Breakfast and Luncheon Series Presented by:"— Presentation transcript:
1 2006 Building Code – Flashing Changes & Challenges Builder Breakfast and Luncheon Series Presented by:
2 Speakers Mick Ryan, President, Siding Contractors Association of Alberta (SCAA) Michael Andrade, Gienow Windows & Doors/AHITC Subcommittee 2006 Building Code – Flashing Changes & Challenges
3 Code Areas Affected by Flashing Changes 18.104.22.168 & 9.27.3 Materials for flashing 22.214.171.124Decks as Structures 126.96.36.199Flashing Installation These changes apply to all types of exterior cladding materials (siding, stucco, masonry, etc.)
4 Allowable Materials for Flashing 9.27.3 & 188.8.131.52 Lead, galvanized steel, copper, zinc, aluminum No change in thicknesses or materials allowed The Standards for flashing galvanizing have changed
5 Flashing at Decks 184.108.40.206 Decks & balconies that do not permit the free drainage of water through the deck must be treated as a roof. Unless the surface slopes to the outside of the building so water can freely drain over the edge. Flashings should installed between walls and decks at guards in contact with the decks
6 Section 220.127.116.11 Flashing Installation Flashing must be installed at every horizontal change in cladding element every horizontal offset in the cladding every horizontal line where the cladding substrate changes, and top and bottom of all penetrations
7 the upper cladding elements overlap the lower cladding elements by at least 25mm Where drained & vented air spaces are used Horizontal joints in stucco with expansion strips Section 18.104.22.168 Flashing Can Be Omitted Where…….
8 Extend at least 50mm upward (1997) Have a minimum 6% positive slope (2006) Have end-dams not less than 25mm high Lap a minimum of 10mm vertically over the building element below (2006) Terminate with a drip that extends at least 5mm out from the face of the building element (2006) Section 22.214.171.124 Flashing Specifications for Wall Openings
10 Installation of Perimeter Flashing Siding can be clipped over the Perimeter Flashing or set on top of the flashing in a J Trim
11 Penetration Options Flash each penetration individually Mount all penetrations on battens to allow the flashing to be placed on the battens rather than each penetration individually. Use self draining/flashed covers that meet code requirements
16 Weather Resistant Barrier to overlap 9” on vertical joints Weather Resistant Barrier to overlap 4” on horizontal shingle laps Caulk behind batten & J Trim on verticals Caulk behind reverse flashing on horizontals.
25 In Summary The 2006 flashing requirements have created additional complexity Number of locations requiring flashings has increased Configuration of the flashing Up dams “Leg” length may vary depending on application Will result in additional cost due to increased install time required increased amount of flashing materials
26 In Summary Talk to your contractors to Ensure that the flashing materials and configurations used meet code requirements Galvanization, “leg” length, 6% slope Ensure deck interfaces are flashed Review designs and add flashing transitions Discuss with your contractors
27 Additional Resources and Information Questions on acceptable solutions Local Code Authority Municipal Affairs help line (866-421-6929) Flashing Details Siding Contractors Association of Alberta (403-291-9707) Stucco Toolkit – CHBA AB or ANHWP (www.chbaalberta.com) AWCA Stucco Resource Guide (403-250-7045) CMHC Flashing Guide (www.cmhc-schl.gc.ca)