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VELUX®

Installation of a Sun Tunnel Velux® light pipe

The SUN TUNNEL light pipe from VELUX® allows natural lighting of blind rooms with a minimum of work. The implementation is simple and very fast, thanks to a frame with integrated connection very easy to install, that the roof is in tiles or slates.

Installation of a Sun Tunnel Velux® light pipe: light

Necessary material

  • Roofer ladder
  • Safety harness
  • Phillips screwdriver
  • Handsaw
  • Chainsaw and cutting disc for tile
  • Pencil
  • Cutter
  • Counter Saw

Steps

  1. Work on the roof
  2. Realization of casing
  3. Installation of the casing

Work on the roof

Roof can accommodate a Sun Tunnel

Roof can accommodate a Sun Tunnel

1. This roof already includes roof windows can easily receive a light pipe. Less than half a day can be installed in a standard configuration by two people. Apart from a little dust, the work does not cause any discomfort inside the house.

Removal of tiles

Removal of tiles

2. Tiles are removed from the outside. Use a flat roofer ladder and take the precaution to secure yourself with a rope and safety harness taken from the frame.

Presentation of the elements to install

Presentation of the elements to install

3. The various elements to be installed: the frame with integrated connection and, in the background, casing elements of the light pipe.

Deposit the glazing

Deposit the glazing

4. Unfasten the 4 screws of the glazing frame and remove it. The removable glazing limits the number of back and forth trips between the outside and the inside of the attic for installation.

Saw the battens

Saw the battens

5. Create the opening (trimmer) in the roof for chassis installation. Saw the battens according to the size of the frame. Prefer south and west directions, which receive the most light.

Lay the chassis

Lay the chassis

6. Place the metal frame in the truss you have just created.

Rest the tiles

Rest the tiles

7. Replace the tiles on the roof around the frame. Any cutouts of tiles are on the ground, with the chainsaw.

Integration of the chassis to the roof

Integration of the chassis to the roof

8. The integration of the chassis is very discreet. It is ready to receive the inner casing of light conduction.

Realization of casing

Assemble the elements

Assemble the elements

9. The joining of the connecting elements is done by double staples.

Lay the sealing strips

Lay the sealing strips

10. Install self-adhesive aluminum strips to seal the metal tube seams.

Prepare the vapor barrier

Prepare the vapor barrier

11. Prepare the pre-formed vapor barrier flange.

Remove the protective tape

Remove the protective tape

12. The outer edge of the collar is self-adhesive. Remove the protective tape.

The collar and the vapor barrier

The collar and the vapor barrier

13. The vapor barrier is assembled to the preformed collar before assembly.

Implantations in the attic.

Implantations in the attic.

14. Layout patterns in the attic:
- upstairs for lost attics,
- downstairs for converted attics.

Ceiling opening

Prepare a cardboard template

Prepare a cardboard template

15. Prepare a 41 cm diameter template to simplify cutting the ceiling.

Cutting the ceiling

Cutting the ceiling

16. Refer the outline of the cut to be made on the drywall, attic. Cut the opening with a saw.

Setting up the collar

Setting up the collar

17. Place the pre-formed vapor barrier flange on the ceiling. The ceiling light diffuser consists of only two elements.

Fix the collar

Fix the collar

18. Screw in the preformed vapor barrier until the tabs fold down onto the plasterboard.

The collar

The collar

19. The preformed vapor barrier flange installed prior to casing integration. The peripheral groove constitutes a "reservoir" for possible condensation.

Installation of the casing

Start tubing from the outside

Start tubing from the outside

20. Start installing the casing (here, rigid version) from the outside. The alignment of the tube elements and the articulated elbows are easy to install.

Continuation of the casing inside

Continuation of the casing inside

21. Continue laying the casing from the inside.

Refit the glazing

Refit the glazing

22. Complete the chassis installation outside by installing the glazing. Replace and tighten the four retaining screws.

Connect the diffuser to the casing

Connect the diffuser to the casing

23. Connect the diffuser to the casing. Position the adhesive strip carefully for maximum airtightness.

Fold down the staples

Fold down the staples

24. Double staples facilitate assembly, adjustment and allow for more flexible articulation of the elements.

Install the airtight adhesive tape

Install the airtight adhesive tape

25. Position the adhesive strip carefully to ensure airtightness.

It is recommended to isolate the conduit

It is recommended to isolate the conduit

26. It is recommended to insulate the duct to prevent heat losses and avoid condensation phenomena.

Position the diffuser

Position the diffuser

27. Position the translucent light diffuser by rotating it a quarter of a turn.

Lighting a stairwell

Lighting a stairwell

28. The Sun Tunnel diffuser provides ideal lighting for a stairwell.

Integration of the chassis on the roof

Integration of the chassis on the roof

29. The Sun Tunnel light pipe chassis fits perfectly with the roof, especially if it already has roof windows.

(photos / visuals: © Velux, except special mention)

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