Half-round gutter

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Hanging gutter joints with 1 special adhesive cartridge

Roughen the surface of the overlapping parts with the supplied sanding paper. (Fig. 1).
Clean both ends with provided cleaner. Wait for the cleaner to evaporate for about 5 min. (Fig. 2).
With PREFA special adhesive apply 1 bead (approx. 8 mm thick) approx. 50 mm before the end of the gutter (Fig. 3).
Twist the gutter together and place a rivet on the gutter bead (Fig. 4).
Close rear edge. If the joint has been carried out correctly the glue should be bulging from the inside (Fig. 5).

Apply a bead (approx. 8 mm thick) of PREFA special adhesive to the cleaned and dry gutter end 50 mm before the end (Fig. 1).
Twist a min. of 80 mm into each other and close the rear edge (Fig. 2).
Set rivet holes with Ø 4.1 mm (Fig. 3).
Rivet with patent rivets 4 x 9.5 mm in a cross stitch (Fig. 4).
- Half-round gutter 250: 6 pcs. Rivets per joint
- Half-round gutter 280 and half-round gutter 333: 8 pcs. Rivets per joint
- Half-round gutter 400: 10 pcs. Rivets per joint
Rivets must be sealed on the inside (Fig. 5).

Spacing of gutter expansion Hanging gutter max. 12 m, on-roof gutter max. 6 m, spacing of expansion joint is to bisect at corners The joint could be bonded or riveted (Fig. 1 and 2).
Expansion joint at low point-expansion will be within the gutter outlet. Push the gutter ends 80 mm into each other and cut out (do not rivet!) (Bild 3).

Crimp the metal about 4 mm outwards, gutter should overhang appr. 30 mm (Fig. 1).
Attach stop end (Fig. 2).
Close the seam of stop end (Fig. 3).
Seal with PREFA special silicone or PREFA special adhesive (Fig. 4).
Fully assembled gutter end cap (Figure 5).

Break off the left or right tab by hand, depending on which side the bonded stop end is to be mounted on (Fig. 1).
Roughen the glued surface. Clean the surface with the PREFA adhesive cleaner, wait approx. 5 mins for it to evaporate. (Fig. 2).
Apply a bead of adhesive, attach stop end to the bead and turn it into the gutter (Fig. 3).
Push the stop end into the gutter: the gutter edge shouldn’t be visible (Fig. 4).

For gutter outlets, mark the opening at the lowest point of the gutter according to the template provided (Fig. 1).
Cut out the opening (Fig. 2).
Edge the opening 4 mm downwards (Fig. 3).
Attach the outlet (Fig. 4).
Bend over the 2 flaps to tighten the outlet (Fig. 5).

Glue gutter joint