•
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Introducing the
Solatube® SkyVault™
Series M74 DS
SkyVault M74 DS
Size Matters
• Largest tubular daylighting
device yet
• Ideal for large volume
spaces with high ceilings
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Airports
Warehouses
Manufacturing facilities
Retail centers
• Maximum output with
minimal impact on the
building envelope
• Significantly reduced
installation costs
SkyVault M74 DS
Your “portal” to the sky
• M74 DS Daylighting System
is the core of the new
SkyVault Series
• 74 cm (29 in.) diameter
• Nearly two times the
aperture and collection
capability of our
SolaMaster® Series
• More light, higher daytime
illuminance
• Greater spacing between
units with fewer roof
penetrations
SolaMaster 750 DS-O
SkyVault M74 DS-O
SkyVault M74 DS
Year-round temperature control
• Maintain and control a comfortable interior temperature
• Insulated, sealed curb cap flashings minimize heat gain/heat
loss through the roof
• Dual dome option improves thermal efficiency even more
• Reduces glare and minimizes traveling hot spots below
• Visible light transmission second to none
SkyVault M74 DS
Labor-saving installation
• Minimal labor and waste
• Pre-assembled roof and diffuser modules to speed installation
• Revolutionary Tab-Lock Connection System with Screwless
Tube Belts eliminates unsightly, labor-intensive seam tape
• Minimal packaging, adhering to USGBC LEED construction
waste management requirements
• Reduces installation time and excess
packaging to save time and money
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Big tubes for big spaces
Solatube SkyVault M74 DS
Applications
• High Bay (18’+ floor to ceiling
heights)
• Types of Applications:
– Industrial
• Warehouse, Manufacturing,
Production
– Airports
• Hangars, Concourse, Terminals
– Convention Centers, Exhibit Halls
– Atriums, Lobbies
– Sports Complexes, Arenas,
Gymnasiums
– Medium & Big Box Retail
Solatube SkyVault M74 DS
Solatube SkyVault M74 DS
Outer Dome
•
High-impact polycarbonate filters out
harmful UV rays
Optional Inner Dome
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Optional Security Guard
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Optional Inner Dome can be added
as a pre-installed option
Improves thermal performance
Tube Belt
•
Components
Patented Tube Belt cinches the tube
connection
Prevents gaps and provides a
tapeless, self-sealing joint
Optional Security Guard comes preinstalled
Stainless steel wire grid inserts into
the flashing turret across the
diameter of the opening
Curb Cap Flashing
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•
•
Flashing features a curb cap that uses
R-6 rigid insulation
All joints come pre-sealed
Includes Dome Edge Protection Band
to achieve a rooftop fire rating
Extension Tubes
Diffuser Assembly
•
•
•
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Revolutionary Tab-Lock Connection
System with Tube Belts
Eliminates need for screws and tape
Comes in 24 in. and 48 in. lengths
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Prismatic Diffuser comes preassembled
Easily attaches to extension tubes
using the Tab-Lock Connection
System and Tube Belts
Circular shape is designed for open
ceiling applications
Solatube SkyVault M74 DS
Roof Configurations
Single Dome
Single Dome with Security
Dual Dome
Dual Dome with Security
Solatube SkyVault M74 DS
Features
Tube Belt Latch
Corner Bracket
Riveted Seam
Dome Clamp
Tube Tab Lock
Dome Edge Protection Band
Solatube SkyVault M74 DS
Installation
• Quick and easy top-down installation for short tube
configurations
SkyVault M74 DS Installation
Mock Installations
• Comparison Installations:
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Solatube SolaMaster 330 DS-O, 750 DS-O and SkyVault M74 DS-O
Installed on mockup roof
Pre-installed curbs
Product unpacked and ready for install
Product Components Included in Mock Installations
Part #
Solatube M74 DS
Part #
125000
M74 DS Dual Dome with Security Guard
512000
300475
48" Extesnion Tube with Tab Lock
420995
M74 DS Prismatic Diffuser Assembly
Solatube 330 DS
Part #
Solatube 750 DS
330 DS Dome and Tube Ring
512020
750 DS Dome and Tube Ring
201130
Curb Mounted
510400
Inner Dome - Acrylic
300490
48" Extension Tube
480000
Dome Security Guard
420200
Prismatic Diffuser
400675
Dome Edge Protection Band
201120
No Pitch 11" High
300490
48" Extension Tube
420200
Prismatic Diffuser
SkyVault M74 DS Installation
Timing Comparison
• M74 DS-O
– 9 minutes, 40 seconds
• 9-12 minute installation with
proper equipment &
preparation
• Over 30% time savings!
• 330 DS-O
– 14 minutes, 49 seconds
• 750 DS-O
– 19 minutes, 49 seconds
SkyVault M74 DS Installation
Tools Required
• Rivet Gun
– Power/Air Rivet Gun is highly
recommended
• Rivet Attachment
– Interesting Option is the RiveDrill
– Blind Rivet drill attachment for power
drills, converts cordless drills into a poprivet gun
• Model: RiveDrill RT120HP for 14V Drills
• Website: www.RiveDrill.es
• Cost: $271 at www.Grainger.com & $168
at www.S-BGroup.com
• Video:
Solatube SkyVault M74 DS
Performance
Solatube M74 DS-O with L2 (K12) Diffuser
Dual-Glazed DPP
Sky Condition
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Solar
Altitude (˚)
10
20
30
40
50
60
70
80
90
50
Lumen
Input*
5579
13362
21365
28774
35224
40472
44344
46717
47516
6700
DPP Lumen
Output
1793
4213
9163
16520
23623
28887
32404
33358
35330
3974
DPP
Efficiency
32.1%
31.5%
42.9%
57.4%
67.1%
71.4%
73.1%
71.4%
74.4%
59.3%
Single-Glazed DP
DP Lumen
Output
2551
5144
10492
18422
26260
31890
35783
36798
39041
4460
DP
Efficiency
45.7%
38.5%
49.1%
64.0%
74.6%
78.8%
80.7%
78.8%
82.2%
66.6%
Solatube SkyVault M74 DS
Performance
M74 DS-O Clear Sky Lumen Summary
M74 DS-O Clear Sky System Efficiency
50000
90.0%
45000
80.0%
40000
70.0%
35000
60.0%
25000
Efficiency
Lumens
30000
Input
50.0%
DP SingleGlazed Dome
40.0%
20000
DP SingleGlazed Output
15000
DPP DualGlazed Output
10000
30.0%
20.0%
5000
10.0%
0
0.0%
10
20
30
40
50
60
Solar Altitude Angle (˚)
70
80
90
DPP DualGlazed Dome
10
20
30
40
50
60
Solar Altitude Angle (˚)
70
80
90
Solatube SkyVault M74 DS
Performance Comparison
• M74 DS-O Clear Sky “Design Average” usable output of 1.3 to
1.5 times the usable output of a Solatube 330 DS-O
Series
Product
Materials
SolaMaster
330 DS-O L2
Acrylic outer
Dome
Performance @ 330 DS-O Units
40° SALT (Lumens)*
Replaced
9,404
N/A
SkyVault
M74 DS-O DP-L2 PC outer dome
13,604
1.45
SkyVault
PC outer dome
M74 DS-O DPP-L2 w/PETG inner
dome
12,108
1.29
* Initial Pario Engineering estimates of lumen output for a CIE Clear Sky with a solar position of SALT = 40⁰ and a Solar Azimuth of 60°
Solatube SkyVault M74 DS
Seasonal Performance
• CIE Overcast Sky, Middle America
– Single Dome M74 DS-O-DP provides increased overcast sky winter
performance over the 330 DS-O
Summer
5000
4500
4500
4000
4000
3500
3500
3000
2500
2000
1500
3000
3000
2500
2500
2000
1500
1000
1000
500
500
0
0
M74 DS-O-DP
Winter
Output (Lumens)
Output (Lumens)
Output (Lumens)
Spring/Fall
M74 DS-O-DPP
2000
1500
1000
500
0
330 DS-O-DA-L2
750 DS-O-DAI-L2
Solatube SkyVault M74 DS
U-Factor & SHGC Ratings
• NFRC Ratings for M74 DS-O-DPP-L2
(National Fenestration Rating Council)
– U-Factor:
– SHGC:
(Solar Heat Gain Coefficient)
1.06 BTU/hr-ft2-ºF
0.30
Solatube SkyVault M74 DS
Webpages
Solatube SkyVault M74 DS
Technical Resources
• www.solatube.com/support/
technical-resources
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Architectural Specifications
CAD Drawings
Cut Sheet
Installation Instructions
Codes & Approvals
Product Literature
Solatube SkyVault M74 DS
Solatube Design Calculator
• M74 DS-O-DP and M74 DSO-DPP versions fully
supported
• Trained Daylighting
Consultants can assist with
running light studies for your
projects to determine
spacing for target light levels
• Single point in time and
annualized calculations
SkyVault M74 DS
Conclusion
• Largest tubular daylighting device
yet
• More daylight, less roof
penetrations
• Faster, easier installation for
significantly reduced labor costs
• Ideal for large volume spaces
with high ceilings
–
–
–
–
Airports
Warehouses
Manufacturing facilities
Retail centers
• Maximum output with minimal
impact on the building envelope
• Better thermal performance for
universal climate applications