Sun Tunnel

Application

Features

Installation

Specifications

The VELUX TWF/TLF flexi-tunnels and TWR/TLR rigid tunnels are designedto provide daylight into areas of the house such as corridors, stairwells,bathrooms, cupboards, etc where installation of a VELUX roof window isnot possible.

Both systems incorporate a flat glass rooflight with *clear and clean coatingand integrated flashing, a flexi or rigid tunnel, and a white trimmed doubleglazed acrylic ceiling diffuser.

The flexi-tunnel has a tube which is designed for relatively short distances(0.4m-1.5m) between the roof and ceiling. It can be used where installationsaround obstacles within the roof space is required.

The rigid tunnel should be specified for lengths between 0.9m and 1.8m. Forgreater lengths up to 6m the rigid tunnel should also be specified in combinationwith ZTR extension sections which ensure adequate daylight levels are obtained.It is supplied with 2 x 30° bends.

*Clear and clean coating reduces the frequency of cleaning the rooflight

Can be installed in tiled roofs with a maximum profile of 120mm (TWF/TWR) orslated roofs (TLF/TLR). Roof pitch 15°-60°.

TWF: flexible tunnel for tiles up to 120mm in profileTLF: flexible tunnel for slate up to 8mm thickTWR: rigid tunnel for tiles up to 120mm in profileTLR: rigid tunnel for slate up to 8mm thick

Rooflight:Frame/flashing – Black moulded polyurethaneSash – Black plasticPane – 4mm toughened glass with *clear and clean coating

Flexi-tunnel:14" 2m x 355mm diameter metalized polyester

Rigid tunnel:10" 2m x 243mm diameter aluminium with highly reflective inner surface14" 2m x 355mm diameter aluminium with highly reflective inner surface

Ceiling diffuser:Sealed double glazed acrylic

Ceiling trim:White plastic

Additional ceiling trim effects for Sun tunnels:Brushed aluminium effectBrass effectMahogany effect

062011 © 2011 VELUX Group. The utmost care has been taken to provide accurate information. However, VELUX shall not be held responsible for any consequences arising from any errors or omissions in the catalogue nor for any damages oraccidental loss resulting from the use of the information herein. VELUX reserves the right to modify, through development improvements, the products displayed in this brochure without notification. Telephone calls may be monitored and recordedfor quality control purposes.

Sectional Drawings

Measurementsin mm

Cross-section

062011 © 2011 VELUX Group

Technical data – TWF/TWR (Tile)

243370

370

460 355

460

01414"

01010"

14"= ø42910"= ø327

ø350

10"=

ø243

14"=

ø345

14"=

729

10"=

627

14"=

471.6

10"=

369.6

59.4

83

14" = 70010" = 598

14" = 43010" = 328

14" = 390.210" = 288.2

14" = 329.210" = 227.2

14"=

475

.610

"=37

3.6

14"=

430

10"=

328

14"=

390.

210

"=28

8.2

14"=

338.2

10"=

236.

2

TWF14"

82.5

TWR14"10"

TWF14"

TWR14"10"

190

14"= ø336.710"= ø234.7

Vertical section

Horizontal section

Technical data – TLF/TLR (Slate)

Measurementsin mm:

Cross sections:

243370

370

460 355

460

01414"

01010"

Vertical section

Horizontal section

062011 © 2011 VELUX Group