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Square daylight pipe/ sun tunnel kit for providing natural light into buildings, for use on flat roofs.

Features and benefits:

  • Directs sunlight into a room from roof level by transferring it through a physical vapour deposition (PVD) coated, mirror-finished, anodized aluminium tube to maximize reflections and limit light diffusion.
  • Incorporates a sealed, double-glazed unit with an outer layer of 3 mm clear float glass, an 8 mm air gap and 3 mm clear float inner glass.
  • Suitable for brightening dark rooms and underground spaces.
  • 10-year inclusive warranty.


  • Square rooflight frame, with square-to-circular transition piece and cover unit. Finishes flush with the roof surface. Supplied with code 4 lead flashing for suitable weathering.
  • 45° adjustable elbow (0.5 mm). Coated with MIRO SILVER® 27/427OAG. Creates an offset to the pipe (i.e. to deviate course). Can be rotated to achieve different angles.
  • Plain end pipe (610 mm, 0.5 mm-thick). Coated with MIRO SILVER® 27/427OAG.
  • Plywood backing plate (4 mm). Helps to mark out the opening at ceiling level and provides additional structural fixing for the diffuser.
  • Ceiling extension (250 mm, 0.5 mm-thick). Provides a permanent joint between the diffuser and end pipe. Coated with MIRO SILVER® 27/427OAG.
  • Double-glazed MicroPrism ceiling diffuser. Offers high thermal performance whilst ensuring maximum spread of natural daylight. White finish.
  • Installation pack. Contains silicone sealant, screws, sealed rivets, neoprene washers, brushed nylon condensation seal, aluminium tape and universal installation instructions.


For installation onto a flat roof of various building types, including:

  • Residential houses.
  • Educational establishments.
  • Retail.
  • Offices.
  • Healthcare.
  • Arenas.

Related literature

The following content references this product:



- 300 x 300 mm (12 x 12"):

  • Rooflight frame size: 480 x 580 mm.
  • Roof opening: 500 x 600 mm.
  • Pipe diameter: 300 mm.

- 450 x 450 mm (18 x 18"):

  • Rooflight frame size: 690 x 780 mm.
  • Roof opening: 710 x 800 mm.
  • Pipe diameter: 457 mm.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-25-99/420 Daylight pipes

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Trade Access Panels


+44 (0)1922 500 145

Product reference

Monodraught Square Sunpipe


[300 x 300 mm (12 x 12")]
Can light an area of 14 m². Requires a ceiling opening of 320 x 320 mm.
[450 x 450 mm (18 x 18")]
Can light an area of 22 m². Requires a ceiling opening of 470 x 470 mm.

Pipe extensions

[Not required]
If pipe length is not required to be longer than 1200 mm.
For pipe lengths of 1200–1800 mm.
For pipe lengths of 1800–2400 mm.
For pipe lengths of 2400–3000 mm.
For pipe lengths of 3000–3660 mm.
Insert requirement. If over 3660 mm, add one length per extra 610 mm.

Manufacturer details

Units 2&3 Oak Tree Court,
Brookfield Drive ,
Cannock , WS11 0JN
Tel +44 (0)1922 500 145
Fax +44 (0)1922 500 145
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