Redpath Tunnelhouse Mk2 Manual page 9

Type No2: Duralock 2 piece clipping system
The Duralock groove inserts are made up of 1.5m white 'channel shaped' inserts and a rectangular white 'bead' insert. These are
inserted into the Duralock aluminium grooves used on base rails, door, and end studs / lintels.
How to assemble Duralock – see below or see
1. Pull the cover and tension it over the jaw of aluminium.
2. Face the channel strip as shown below and Insert it by tilting it slightly and pressing it down and into the groove WHILST you
releasing the tension from the tail of the film. 'Seat' the channel into the alloy groove. Use secateurs to trim the Duralock parts to
length.
3. Tap the rectangular locking bead into place with the rounded edge facing down as shown
Sequence used to install Duralock clipping strips. Fit channel first then locking bead afterwards. ONLY place in direction shown
IMPORTANT!
(A) Locking Lug Forward
Below picture shows all parts of Duralock assembled
FITTING COVERS TO THE TUNNELHOUSE
 The covering is supplied in separate pieces. 1 for the door(s), 1 for each end, and 1 for the roof/side.
 Install the covers on a warm, calm day.
 When trimming off the covers leave a 100mm 'tail' in place initially and when satisfied with the tension on the various parts , you can
trim the tail to within 20mm for a tidy appearance
1. DOOR COVER – Use the Duralock channel and bead.
 Lay the door frame on the ground with Duralock groove facing upward and lay the 2m x 1m door cover in approximate position
 You will need to cut the clipping inserts (channel and bead) with a pair of secateurs to suit the length of the frame work grooves. The
clipping inserts should be cut to length finish approximately 25mm short of each corner.
 You will begin by fitting the clipping insert to the top door rail firstly, - then the bottom door rail (pulling the cover tight as you do so).
Then install the inserts into the side door edges. (begin in the middle and work toward the corners)
Effective from 31-Oct-23
YouTube videos of Duralock 2 assembly
(B)Tilt Channel Insert
Bead
Channel
Alloy
channel
See YouTube video "Mk2 door covering install"
(C) Fully Seat Channel Insert, then fit Bead
End view of the base rail below
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