Jack Rafters

High strength twin wall
chambered top cap
offers improved thermal
performance and reduced
risk of condensation.

Optional chambered top
cap (choice of two) resists
bowing and twisting.

Jack rafter joints resist
both negative and
positive wind loads.

Triple fixing of Aluminium
tenon provides robust
performance.

Multi point fixing to hip
bar. Shape retained by
pips in aluminium.

Security against PVC top
cap movement. Maintains
seals in jack rafter and
ridge positions.

Barbs clamp over
aluminium bar


Single wall PVC
top cap.

Tall and narrow
bar structure.
Jack rafter attachment
clips round tall central
web and one fixing point
engagement into shallow
channel.
6mm Gaskets


Plain undercladding

ALTERNATIVES FEATURES

ULTRAFRAME

The