1. Couple Roof
ridge
wall plate

2. Load from tiles and snow can cause spreading...
Couple Roof
Load from tiles and snow can cause spreading...

3. It can be prevented by ties (ceiling joists)…
Couple Roof
It can be prevented by ties (ceiling joists)…

4. On wide spans ceiling joists can sag…….
Closed Couple Roof
ceiling joists
On wide spans ceiling joists can sag…….

5. This can be limited by hangers and binders
Closed Couple Roof
hanger
binder
This can be limited by hangers and binders

6. This can be limited by hangers and binders
Closed Couple Roof
hanger
binder
This can be limited by hangers and binders