Decra Oberon

Decra's Training Officer Peter Gibson guides you through the installation process for the Decra Oberon Tile

11. Walking On The Tiles
When walking on the roof it is strongly recommended that installers should wear soft soled safety shoes to avoid any possible abrasion to the surface coating.
Your weight should be concentrated over the front edge and in the pan of tiles, as this is the area supported by battens.  Weight MUST NOT be applied to the raised crown of the profile on the middle of tiles.
  
If you have managed to dent a tile refer to the tips section
 

12. Start Laying The tiles

Lay the tiles starting at the batten below the ridge and next to the gable.
 

When putting your first nails in take care not to puncture the underlay below.

Q   Why lay from the top?

A  Although this is the opposite of traditional tiling practice, by laying from the top the tiles interlock tighter and it is actually quicker to lay the Decra tiles this way.

Cut the first row of tiles from the bargeboard into random widths so that the profile of the tile does not appear in the same vertical position. Form a 25mm to 38mm upstand in the cut edge of the tile and abut the upstand edge against the gable runner batten (see setting out gables section).

Q   Do I lay the tiles straight bond or staggered bond?

A Oberon tiles should always be laid staggered bond ensuring that a repeat pattern does not appear in the side overlap down the roof slope.

Q   How much side lap?

A

13. When You Have Laid Several Courses
When you have laid several courses (laying them one under the other, by lifting the nose of a tile and tucking the next tile under) start nailing with Decra nails, 5 per tile (4 along the bottom edge and one at the lap of the stepped section of the tile).

Nail tiles through the nose as shown in the sketches, leaving bottom course loose until more tiles are laid. One nailing point must be at lap of course below.

 You must only use fixing nails and screws supplied by Decra, OTHERWISE the Decra guarantee is invalidated.

14. Nail The Eaves Course
Nail the eaves course at the high points of the tile surface into the top of fascia or eaves arris rail (if eaves ventilation is being fitted, see ventilation pack for nail positions).

Use 4 nails per each tile.
After completion of roof cover these nail heads with Decra finishing kit.
 

14. Gables
The gable ends of the roof are finished by using a Ridge/Barge cap accessory.
 

Ridge/Barge cap
 

Turn up edge of tiles to form a 38mm upstand against a gable runner batten.

Holding the Decra Ridge/Barge cap in your hands squish the cap to a 90° angle (see image below)

starting at the eaves and working up the slope, each Ridge/Barge cap should be secured with 2 nails on each side of the ridge cap through the pre-drilled hole. The nails should be skew fixed through the upstand of the tile below (see image below).

      
Where the gable meets the eave of the roof the exposed end of Ridge/Barge cap will need blocking off with an end cap (see section “Ridge/Barge End cap” shown later in this guide for general principles)

Tips on cutting and bending tiles