For Non-Cyclonic Areas
Two 12 x 20mm self drilling screws per pan at each support and two 3.2mm sealed aluminium rivets per pan at the back channel. If decking runs parallel to the back channel, secure to channel with rivets at maximum 200mm centres. All screws require neoprene washers.
For Cyclonic Areas
Three 12 x 20mm self drilling screws per pan at each support. For deck spans less than 3600mm, two self drilling screws per pan are to be used on the fascia beam. Three 4.8mm sealed aluminium rivets per pan (or 150mm centres if sheets are parallel) are to be used on the back channel. All screws require neoprene washers.
Post | Purlin
Curved units attached between a flat or Sunroof unit and an existing structure
Curved units which are attached between a flat or Sunroof unit (excluding pergolas) and an existing house, are only considered attached if the curved unit is attached to the existing house (C) for its full length (L) and the longest side of the combined unit (B) does not exceed twice the curved unit length (L). The flat or Sunroof unit in this case can be considered attached. This style requires all coloumns to be embedded into footings.
The unit is considered attached if: B = 2 L or less, and C = L
Curved units attached to a flat or Sunroof unit on one or both sides
Curved units which are attached on one or both sides to flat or Sunroof units, (excluding pergolas) must be attached to a house for at least 75% of the curved opening length (O) to be considered attached. Flat or Sunroof units must be deemed attached as detailed in the flat or Sunroof unit section below for the curved unit to be considered attached.
Curved units are considered attached on both sides if both the flat 1 and 2 comply with the attachment rules for flat or Sunroof units as detailed below. Curved units are considered attached on one side if only one flat or Sunroof unit exists and it complies with the attachment rules for flat or Sunroof units as detailed below.
The gable | curved unit is considered attached if: C = 0.75 of O or more
When designing an Outback Patio, consideration should be given to both the roof sheet direction, and the orientation of any openings and overhangs involved. These are often determined by appearence and drainage requirements. Some of the normal configurations are shown below. Contact Stratco if assistance is required.
Attached to a wall or fascia on one side only.
Rear attached to a wall or fascia (full length).
Attached to a flat or Sunroof unit on one side and a wall or fascia on one end.
Attached both sides to the flat or Sunroof unit and the wall or fascia on the opposite side.
Attached to the flat or Sunroof unit on both sides and the wall or fascia on one end.
Note: When attaching curved patios to Sunroof units, please refer to 'The Rules of Attachment to Standard Outback Systems' in the 'Outback Sunroof Span Tables Book'.