SOLITEX WELDANO-S 3000

1a. Fit the flashing

If there are longitudinal joints with the eave flashing, first install SOLITEX WELDANO-S 3000 sealing strips parallel to the eave (lower edge flush with the edge of the sheathing).

1b. Fit the flashing

2a. Install the membrane and overlap

Roll out the membrane parallel to the eave and use clout nails or fastening staples that are at least 10 mm (3/8") wide by 8 mm (5/16") long approximately 2 cm (3/4") away from the edge of the membrane to fasten the membrane in the overlap area in a manner that protects against moisture entry. At the bargeboard, guide the membrane up to the upper edge of the counter batten or the bargeboard itself.

2b. Install the membrane and overlap

Allow for an overlap of at least 10 cm (4") between the membranes. The marking that is printed onto the membrane will serve as a guide here.

3a. Overlap with WELDANO TURGA solvent welding agent

Use the brush provided in the bottle to apply solvent welding agent inside the overlap at the welded joint. Press the bottle lightly here.
The effective joint width (area covered with solvent welding agent) must be at least 5 cm (2") wide and must extend as far as the edge of the overlapping membrane.

3b. Overlap with WELDANO TURGA solvent welding agent

The solvent welding agent should flow out slightly from the edge of the welded joint to ensure that the edge is welded too. Remove any other excess solvent welding agent with a cloth.

4. Rub the overlap into place and check it

Place one membrane on top of the other immediately, ensuring there are no folds or creases, and press into place (e.g. using a pro clima ROLLFIX silicone roller).

5a. Alternative: Heat-welding the overlap using a hot air gun

Place the hot air nozzle into the overlap of the welded joint and move it along the edge. The effective joint width must be at least 3 cm (1 1/4") wide and must extend as far as the edge of the overlapping membrane.

5b. Alternative: Heat-welding the overlap using a hot air gun

Place one membrane on top of the other immediately, ensuring there are no folds or creases, and press into place (e.g. using a pro clima ROLLFIX silicone roller). The heat-welded joint should be checked subsequently for leaks (e.g. using a nail or the tip of a pencil).

6a. Sealing at eaves

Install the membrane and weld it above the eave flashing using WELDANO-S 3000.

6b. Sealing at eaves

Clean the eave flashing and stick the lower edge of the membrane with ORCON CLASSIC or DUPLEX.

If a PVC-coated eave flashing is used, this can be directly welded to the roofing underlay membrane in a homogeneous manner in certain cases. This should be checked in advance.

6c. UV protection for the membrane in the eaves area

Sealing at eaves: Apply the SOLTEMPA full-surface self-adhesive strip over the joint.

7. Installation in roof valleys

First install a membrane into the valley longitudinally. Then weld the horizontal membranes to the valley membrane in a windtight and waterproof manner, allowing 10 cm (4") of an overlap.

8. Counter battens not covered over

If a counter batten is to be fitted on top of the membrane and/or if the membrane is used as a temporary covering/seal during the construction phase, TESCON NAIDECK mono system nail sealing tape should generally be applied under the counter battens.

9. Counter battens covered over

Apply WELDANO-S 3000 sealing strips over the counter battens and weld them to the roofing underlay membrane on both sides. The counter battens must be dry.

Alternatively, the roofing underlay membrane can also be installed directly over the counter battens.

10a. On slightly slanted roofs: Joint at pipe feed-throughs

Clean the pipe that is to be sealed. Pull WELDANO ROFLEX over the pipe and ...

10b. On slightly slanted roofs: Joint at pipe feed-throughs

... weld the seal flange to the roofing underlay membrane (using solvent welding agent or a hot air gun). Press the joint firmly into place and check for leaks.

10c. On slightly slanted roofs: Joint at pipe feed-throughs

Stick the top of the pipe grommet to the pipe using TESCON VANA.

10d. On slightly slanted roofs: Joint at pipe feed-throughs

Tip: For larger roof vents, WELDANO ROFLEX can be enlarged using a piece of membrane.

11a. On pitched roofs: Joint at pipe feed-throughs

Weld the grommet around the edges using the WELDANO TURGA solvent welding agent or hot air.
The effective joint width (area covered with solvent welding agent) must be at least 3 cm (1 1/4") wide and must extend as far as the edge of WELDANO ROFLEX PLUS. Use a roller to press the grommet in place.

11b. On pitched roofs: Joint at pipe feed-throughs

Prepare a sealing strip of SOLITEX WELDANO-S 3000 to suit the roof pitch and pipe diameter.

11c. On pitched roofs: Joint at pipe feed-throughs

Guide the sealing strip around the pipe and weld to one another and to the sealing flange of the grommet using WELDANO TURGA. Use a roller to press the bond in place.

11d. On pitched roofs: Joint at pipe feed-throughs

In addition, stick the sealing strip of SOLITEX WELDANO-S 3000 to the pipe and in the overlap area of the sealing strip using pro clima TESCON VANA.
You’re finished!

12. On slightly slanted roofs: Joints with protruding building components (e.g. chimneys)

Clean the subsurface. Weld the component to the roofing underlay membrane using a strip of SOLITEX WELDANO-S 3000 on each side and the WELDANO INVEX system shaped element (using solvent welding agent or a hot air gun) in a waterproof manner, ensuring there are no folds or creases. Press the joint firmly into place and check for leaks.

Form the inner corners in an analogous manner using the WELDANO INCAV system shaped element.

12b. On slightly slanted roofs: Joints with protruding building components (e.g. chimneys)

Cover to a height of at least 15 cm (6") on the protruding building component and stick using ORCON CLASSIC.

13a. On pitched roofs: Joints with protruding building components (e.g. chimneys)

Apply a line of ORCON CLASSIC with a diameter of at least 6 mm (1/4") to the mineral subsurface (more in the case of rough subsurfaces, if necessary).

13. On pitched roofs: Joints with protruding building components (e.g. chimneys)

Put the membrane in place on the adhesive bed, leaving slack to allow for expansion. Do not press the adhesive completely flat so as to allow for relative motion between components.

14. Installation of a water deflector

Create a water deflector with a lateral fall above the integrated roof element and stick it to the membrane. Form the water deflector in such a way that moisture is guided through a gap in a counter batten into the next adjacent field that does not have an integrated roof element.

15. Sealing at skylights

Seal the skylight all around the window up to the upper edge of the frame using SOLITEX WELDANO 3000. Weld the membrane in the corners using the WELDANO TURGA solvent welding agent.

16. Sealing at skylights

Affix SOLITEX WELDANO 3000 to the frame using pro clima TESCON VANA. You’re finished!