- Maximum Purlin - Purlin spacing : 65cm | Purlin size min 1.5" x.75" | Rafter spacing 150cm
- Min slope 60cm/sheet & accordingly
- Screwing - Only above sheet rib | Dont overtight | Screwing with waterproof caps only Screw length varies (trafford 1.5"-2" & tile 2.5"-3")
- Sheet to sheet alignment is important to avoid leakage Water testing after sheet installation is advised with a garden hose
- Ridges - 3 types- Top | Side | 3 Way
- Overlap - Horizontal overlap (Tile & Trafford)-3" | Vertical overlap trafford-6" Vertical overlap tile-8" | Ensure purlin below overlap
Correct alignment is very important regardless of the roof structure. Only with correct alignment can the sheets be assembled closely and straight.
TOP RIDGE sheet
SIDE RIDGE sheet
THREE-WAY RIDGE sheet
Three Way Ridge sheet is used as the joining element between the top ridge and the diagonal ridge sheet.
ENDING RIDGE sheet
After finishing the assembling of side ridge, insert the side ending ridge piece into the bottom end of side ridge, and fix to the side ridge by rivets
CONNECTION WITH WALL
Use sidewall flashing made of PVC or metal, stick the flashing board to the wall and sheet by self-tapping screws or nails and seal the higher end of flashing with silicon sealant.