Tiling Battens
- H1.1 boric-treated when used in attic roof construction;
- H1.2 treated when used in skillion roof construction.
- a minimum of 50 mm x 40 mm for 900 mm rafter spacing; and
- a minimum of 50 mm x 50 mm for 1200 mm spacing.
Battens in contact with tiles must not be treated with copper-based preservatives. Battens required for rafter spacings greater than 1200 mm must be specifically designed and spaced to suit the tile module.
Batten Installation sizing and fixing requirements in accordance with NZS 3604: 2011
| Wind Zone | Batten Size | Max Span | Spacing | Fixing Type | Alt Fixing Capacity (kN) |
|---|---|---|---|---|---|
| Low | 50x40 | 900 | 370 | 1/90x3.15 gun nail | 0.55 |
| 50x50 | 1200 | 350 | 1/90x3.15 gun nail | 0.55 | |
| Medium | 50x40 | 900 | 370 | 1/90x3.15 gun nail | 0.55 |
| 50x50 | 1200 | 350 | 2/90x3.15 gun nail | 0.8 | |
| High | 50x40 | 900 | 370 | 2/90x3.15 gun nail | 0.8 |
| 50x50 | 1200 | 350 | 1/10gx80mm self-drilling screw | 2.4 | |
| Very High | 50x40 | 900 | 370 | 2/90x3.15 gun nail | 0.8 |
| 50x50 | 1200 | 350 | 1/10gx80mm self-drilling screw | 2.4 | |
| Extra High | 50x40 | 900 | 370 | 1/10gx80mm self-drilling screw | 2.4 |
| 50x50 | 1200 | 350 | 1/10gx80mm self-drilling screw | 2.4 |
N.B. Battens at different centres may require different values.
Battens must have square cut ends and must be butt jointed over the centre line of the rafter.
- Adjacent rows of battens must not be joined on the same rafter and must span at least three rafter spacings at the roof edge.
- A batten must be installed immediately behind the fascia as fixing for the eaves tiles.
Because an eaves-tile batten is installed directly behind the fascia, the position of the next batten up the rafter will be less than that of the normal tile batten spacing. The position of this batten may vary depending on the pitch of the roof.
The batten layout is marked on the rafters by placing nails at the line of the batten fronts. The roofing underlay is laid over this, onto the rafters. The battens are then laid from the lowest part of the roof upwards, using the marker nails to locate the front edge of the batten. Remove the marker nails before laying the tiles.
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