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Tubular Daylighting System – Solatube SkyVault® M74 - SkyVault Series

Verified by manufacturer 2 days ago

Solatube International Product certifications:
  • FM Approved

    FM Approved

    Certificate type

The Solatube SkyVault® M74 740 mm tubular daylighting system delivers high-output natural daylight for large commercial spaces with open ceilings, including warehouses, airports and industrial spaces.

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Application

Daylighting applications for large commercial and industrial buildings where tubular daylighting systems deliver high-output natural daylight into expansive interior spaces with open ceilings.

Applications include:

  • Airports
  • Convention centres
  • Hotels and leisure centres
  • Warehouses and industrial buildings
  • Retail environments
  • Military facilities

Description

The Solatube SkyVault® Series is a high-output, large-diameter tubular daylighting system designed to deliver maximum natural daylight to expansive interior spaces with high, open ceilings. This tubular skylight system features a 740 mm diameter and is engineered for mounting heights over 4.5 metres and large-volume environments.

With modular design options, including amplification and diffusion components, the SkyVault system delivers powerful and scalable daylighting performance while reducing energy loads and improving occupant wellbeing.

The system is designed for large-scale applications including airports, convention centres, hotels, leisure centres, warehouses, industrial buildings, retail environments and military facilities.

The SkyVault Series has been engineered for durability and long-term performance, featuring sealed, pre-assembled assemblies, self-cleaning domes and UV/IR filtering to ensure consistent, high-quality daylight delivery with minimal maintenance.

Key Features & Benefits

  • Maximum Daylight Capture: Collector features a patented optical dome with Raybender® HD Technology and LightTracker™ Reflector to maximise daylight input, even in low sun-angle conditions.
  • Spectralight® Infinity Tubing: Provides 99.7% specular reflectivity, transmitting daylight across long distances with minimal loss, ideal for large-scale commercial applications.
  • Modular Design: Interchangeable components, including amplifiers and diffuser options, allow system performance to be tailored to project requirements.
  • Energy Efficiency: Reduces reliance on electric lighting during daylight hours, lowering operational costs and supporting sustainability targets such as LEED, WELL and net-zero goals.
  • Enhanced Indoor Experience: Delivers consistent, glare-free natural daylight that improves comfort, visibility and occupant wellbeing in large environments.

Features and benefits

  • SkyVault® Series: High-output daylighting system for large-scale applications
  • 740 mm Diameter Pipe: Designed for large-volume interior spaces
  • Open Ceiling Applications: Optimised for high ceiling environments over 4.5 metres
  • High Performance Optics: Advanced light capture and distribution technology
  • Thermal Efficiency: Designed to minimise heat gain and loss
  • Low Maintenance: Self-cleaning dome and sealed components
  • UV/IR Filtering: Reduces heat gain and protects interior finishes
  • Colour Consistency: Maintains neutral daylight colour throughout the year

Components

  • Dome: Oversized collector dome with optional configurations designed to maximise daylight capture while filtering infrared heat.
  • Amplifier: Optional component that concentrates daylight output for enhanced performance at high mounting heights.

General information

Color

White

Finish

Laminated

Material

Polycarbonate

Metal

Shape

Circle

Guidance for specification option:

Majority of the system is based around circular pipes, dome and internal terminal (latter for open ceilings only).

Square

Guidance for specification option:

Internal terminal shape (closed ceilings only).

Length

Bespoke

Width

740 mm

Guidance for specification option:

Pipe diameter (29").

Warranty description

Ten year

Uniclass

Pr_30_59_72_21 Daylight pipesPrimary

CAWS

L1/326 Sun pipes

L10/48 Daylight pipes

L10/495 Daylight pipes

SKU Code

SM74DS-O

Specification data - Daylight pipes

Classification data

Material

Polycarbonate plastic.

Guidance for specification option:

Dome(s) only; consult manufacturer for details of other components.

Internal finish

Spectralight® Infinity.

Guidance for specification option:

Spectralight® Infinity Tubing:

  • Delivers 99.7% reflectivity for maximum daylight transfer.
  • Provides the purest rendition possible so colours are truer and brighter 
  • Allows for lengthy tube runs and 90 degree turns to deliver daylight to lower floors.

Cool Tube Technology:

  • Proprietary material used in SkyVault Series reflectors and tubing that: 
  • Filters out infrared wavelengths to minimise solar heat gain.
  • Prevents heat from entering the building.
  • Improves thermal efficiency.

Diameter

740 mm.

Guidance for specification option:

29 inches.

Length

Guidance for specification option:

Insert requirements. Transfer zone can be specified as follows:

  • E1 – one extension tube: maximum run 762 mm (30").
  • EL – one extension tube: maximum run 1219.2 mm (48").
  • E2 – two extension tubes: maximum run 1346.2 mm (53").
  • E3 – three extension tubes: maximum run 1930.4 mm (76").
  • E4 – four extension tubes: maximum run 2514.6 mm (99").
  • E5 – five extension tubes: maximum run 3098.8 mm (122").
  • E6 – six extension tubes: maximum run 3683 mm (145").
  • E7 – seven extension tubes: maximum run 4267.2 mm (168").
  • E8 – eight extension tubes: maximum run 4851.4 mm (191").
  • E9 – nine extension tubes: maximum run 5435.6 mm (214").
  • E10 – ten extension tubes: maximum run 6019.8 mm (237").
  • EXX – total run length to be determined by bidding contractor.

Manufacturer guidance

Up to 30 metres.

Run measured from top of flashing to diffuser along center line of tubing using 609.6 mm (24”) lengths or 1219.2 mm (48") option also available (see below).

Bends

Not applicable.

External terminal

Polycarbonate dome - DP.

Guidance for specification option:

FM approval.

Polycarbonate dome with PETG inner dome - DPP.
Polycarbonate dome with collector - DP/C.

Guidance for specification option:

Collector includes Raybender HD and LightTracker Technologies.

Polycarbonate dome with PETG inner dome plus collector - DPP/C.

Guidance for specification option:

Collector includes Raybender HD and LightTracker Technologies.

Manufacturer guidance

See also Accessories below for dome options, flashings and flashing options.

Internal terminal

Prismatic diffuser (round - L2) with base unit (B) and amplifier (A).

Manufacturer guidance

Transition assembly also required: See Integral accessories below.

 

Specify options Lens if required separately below.

Accessories

None.
Dome security guard - SG.
0–10 V daylight dimmer - D1.
UL-listed Class 2 transformer, 24 V a.c., rated 20 VA - TR20.
UL-listed Class 2 transformer, 24 V a.c., rated 96 VA - TR96.
0–10 V daylight dimmer with low voltage switch - D1/ S1.

Guidance for specification option:

Low voltage 0–10 V switch (white, S1) is required to operate Solatube 0–10 V daylight dimmers. Requires one switch per 48 synchronously controlled dimmers.

Note: For use when no controls have been specified and customer is looking for an off-the-shelf solution.

Trim ring - R.
Thermal insulation panel - TIP.

Guidance for specification option:

Nominal 24” extension tube (2 x 12” transition tubes, replacing 1 x 24” extension tube).

Flashings

Curb cap - FC.

Guidance for specification option:

FM approved.

Metal insulated curb, 889 x 889 x 305 mm - C12.

Guidance for specification option:

35 x 35 x 12".

Curbs designed for single-ply roofing, lightweight fill or tapered insulation low slope roof types.

Metal insulated curb, 889 x 889 x 355.5 mm - C14.

Guidance for specification option:

35 x 35 x 14".

Curbs designed for single-ply roofing, lightweight fill or tapered insulation low slope roof types.

Metal insulated curb, 889 x 889 x 406.5 mm - C16.

Guidance for specification option:

35 x 35 x 16".

Curbs designed for single-ply roofing, lightweight fill or tapered insulation low slope roof types.

Metal insulated curb, 889 x 8893 x 508 mm - C20.

Guidance for specification option:

35 x 35 x 20".

Curbs designed for single-ply roofing, lightweight fill or tapered insulation low slope roof types.

Metal insulated curb, 889 x 889 mm, custom height - CXX.

Guidance for specification option:

35 x 35". Custom kerb height determined by bidding contractor.

Curbs designed for single-ply roofing, lightweight fill or tapered insulation low slope roof types.

Manufacturer guidance

See also Options below.

Consult manufacturer for FM approved combinations.

Sustainability data

Contains Red List materials

No

Country of material origin

United States

Country of product manufacture

United States

Manufacturing plant location

Material

Polycarbonate
Metal

Expected Life

20 year

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
 -

1

IFC
 -

1

Product certifications

FM Approved

FM Approved

Literature

Solatube - Daylighting at Work 2024

Solatube - Daylighting at Work 2024

Case studies

The Rogaška Medical Centre, Slovenia

The Rogaška Medical Centre, Slovenia

ArcelorMittal, Poland

ArcelorMittal, Poland

SIPCO - Jeddah Distribution Center Kingdom of Saudi Arabia

SIPCO - Jeddah Distribution Center Kingdom of Saudi Arabia

Arizona State University

Arizona State University

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