Page 26 - Build 152

TEN-STEP GUIDE TO INSTALLING A TIMBER SILL
BUILD
Installing a timber sill
There are 10 main steps to installing timber windows in direct-fixed bevel-back weatherboards.
RIGHT
BY TREVOR PRINGLE,
ANZIA, BRANZ PRINCIPAL WRITER
WHILE NOT IN E2/AS1, this installation sequence for the sill of a timber window into a direct- xed bevelback cladding system is relatively straightforward.
These are the key steps for an Alternative Solution:
1. Turn the wall underlay into the rough opening. Remember to allow for the
vertical packers at the jamb when setting out and site measuring for the
windows.
2. Fit a exible ashing tape that is compatible with the wall underlay to
the sill trimmer.
3. Install the weatherboards.
4. Fit the ashing support packer to the sill trimmer.
5. Fit the vertical jamb packer where required.
6. Insert the sill tray ashing across the full width, over tape and to jambs.
7. Insert the window and install the air seals.
8. Fit insulation (not shown for clarity).
9. Line interior.
10. Fit sill and architraves.
Step 1
Construction sequence.
Step 6
24 — February/March 2016 — Build 152