Solaveil

Daylight Management Technologyimproving life cycles

SBS ONE

FM SolutionsDynamic Energy ModellingPerformance Gap AnalysisEngineering DesignBuilding Information ModellingEnergy Solution InstallationsMetering & Billing Platforms

providing that desired environment,with cooled natural daylight

“with an abundance of natural daylight,why is so much blocked out?”

The benefits of natural daylight

availability, are thoroughly researched and docu-mented in terms of effecting productivity, sales, learning, and general emotional well being for occu-pants of buildings

Here in the UAE, we have the benefit of high levels of solar ava i lab i l i t y with an abundance of daylight

Though, all to often, seen as being ‘blocked out’ as existing glazing tints fail

to address high solar glare levels.

Degrading internal environments

Micro louvre Light Shelves (MLS) throughout higher sections of glazing, which are often unused

Ability to ‘feather’ from enhanced to clear sections, through gradual changes in shelf and glare intensity and depth. Providing a seamless transition

Clear Viewing Lakes provide look ‘In & Out’ at premium zones

Lower sections benefit from further Enhanced Glare Control (EGC), whilst providing additional modesty coverage

Supported by Tested by

Solar Glare reduced, by blocking daylightLittle effect on Solar Heat GainLights often ‘Switched On’ as a resultAdditional Cooling DemandsBlinds damaged, with extra maintenancePoor mosaic look from outside

Solar Glare reduced, by filtering daylightOr marginal effect on Solar Heat Gain Lights often ‘Switched On’ as a resultPoor Colour Light SpectrumNo ability to access daylight Compromises premium viewing zones

A Common ProblemThe extreme climate in the UAE, results in challenges with both temperature and light levels. Which if not treated, causes poor environments for occupants with low levels of emotional well being

Most buildings glazed in the UAE, are provided with a level of glazing tint, seen as colouring. Which, only in part addresses thermal and solar glare issues for internal spaces. Often result-ing in heavy demands on AC systems and excessive solar glare in the internal spaces. Requiring additional treatment to improve internal working, learning or living environments

Typical Solution - Sun BlindsIn most cases, occupants turn to the use of Sun Blinds in the form of roller, vertical or horizontal types. With the aim of reducing solar glare and “keeping the heat out”

Although, the result of blocking the desired natural daylight is ;

Reduction of Premium ViewsDarker Environments, leading to lights ‘Switching On’ caus-ing more heat build up and cooling energy useThermo-syphoning of heat between the glazing and blind, with solar radiation not stopped from entering the space Degrading of the Interior and Exterior ‘Look and Feel’

Generating, a less than perfect environment in terms of Well Being for occupants and higher energy costs

Typical Solution - Solar FilmIn some cases, conventional solar film is applied to glazing

Although, still resulting in issues of ;

Re-Radiated Heat with the high absorbance characteristicsPoor Internal Colour Spectrums experiencedOften still Dark Environments and ‘Lighting On’, adding to lighting energy costsA need to Apply Throughout to achieve uniformityDegrading of the Interior and Exterior ‘Look and Feel’

Again, resulting in a ‘not so ideal’ internal environment

A Desired SolutionPurpose designed for building applications. While capturing the positive attributes of existing solutions, along with other technologies and providing complete flexibility. Solaveil is a unique engineered solution, that addresses both thermal and light issues simultaneously and better than existing alterna-tives. Whilst still maintaining the benefits of glazing, avoiding inherent problems and significantly reducing energy consump-tion and cost

‘Natural Cooled

Daylight’

With the unique ability of being bespoke to any specific section of glass. Whilst providing thermal and light treatment, to meet the orientation and internal use, without compromising the availability of natural daylight

High GlareEnvironment

DarkEnvironment

Poor ColourEnvironment

46% Visible Light

transmitted causing

Solar Glare

Infra Red Radiation

creating Heat

Ultra Violet Light 83% Rejected

Light is filtered

with 35% light

transmissionInfra Red

Lightreduced

60% rejection

High absorption

factor, radiating

heat to the space

Light either rejected

with a dark interior

Infra Red Light

trapped between

inner window

and blind

Ultra Violet Light

Rejected

Ultra Violet Light

Rejected

Natural Daylight UseExcessive Solar GlareAC Systems working hard, in summer periods

“with added benefits in addition,to significant energy and cost savings”

an engineered solution truly addressing Solar Glare,through Daylight Management Technology

Daylight is ‘Bounced’ into the space through diffraction, while preventing direct sunlight

Providing Cool Natural Daylight

Harmful Ultra Violet Light is 99% rejected

Infra Red light is rejected, providing enhanced thermal performance to glazing

Verified by Regulated by

An Engineered SolutionSolaveil utilises the benefits of Brise Soleil (light shelves) to ‘bounce daylight’ deeper into the space. Whilst providing an Enhanced Glare Control, at Visible Light Transmission levels, that truly address solar glare

In addition to treating solar glare, the solaveil significantly enhances the glazing’s thermal performance, with between 50-90% solar energy rejection and absorbance factors as low at sub 10%

With the ability to ‘digitally design’ each section prior, to print-ing.

Micro Louvre Shelves are able to be adjusted in depth, spacing and gap. As well as coverage areas, to achieve an optimum combination of performance and return, with Clear View zones as desired

A Year Long IssueWith the UAE being relatively close to the equator. Solar Incidence, which has a significant impact on cooling demands, is present throughout year. With peaks (orientation dependant) typically between December - April. Although often not noticed during the cooler winter periods, given AC Systems are gener-ally able to achieve internal temperatures with the lower exter-nal ambients.

However, energy savings and benefits from Solaveil applica-tion, continue throughout the full annual cycle

00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00

900

800

700

600

500

400

300

200

100

0

Targeted ApplicationWith its flexibility. Solaveil can provide a targeted application, to address only key facades or areas. In order maximise saving benefits and/or address historical issues of glare and cooling under system performance

Desired EnvironmentWith the application of Solaveil being a Daylight Management Technology, provides for ;

Glare Reduced and Addressed, avoiding sun blindsEnhanced Thermal Performance of glazing, reducing cooling demands and cost Spaces filled with Usable Quality Natural DaylightMaintenance of Premium Viewing ZonesImproved Well Being and ProductivitySignificantly Reductions in existing energy costs

Providing in an environment with ‘natural cooled daylight’

Solaveil ImpactSolaveil’s impact on a building or space’s solar gain, continues throughout the yearly cycle

Further BenefitsHealthWith Anti-Bacterial prop-erties, avoiding bacteria colonisation

Often prevalent with traditional curtains and blinds

SecurityBy providing proven Blast M i t i g a t i o n p ro p e r t i e s , whilst also i n c r e a s i n g privacy for occupiers

ColourAllowing for colour and patterns, to be added.

Enhancing look and feel

and privacy

AdvertiseI n c o r p o r a t i n g company brand-ing and livery, into your CSR sustain-able solution

Fresh, CoolEnvironment

50% VLTat right colour cast

Infra Red Light50-90% Rejection

Daylight ‘bounced’ deep into the space

Light Diffused

Ultra Violet LightRejected

Through Glare Control, diffused daylight enters, addressing glare at the right colour spectrum levels

Adjustment at a micro level, for maximum flexibility

AugJulJunMayAprMarFebJanDec

Sola

r Rad

iatio

n

DecNovOctSep

South

South East & South West

Horizontal

East & West

North East &North West

North

Typical Annual Solar Incidence Profiles - Facade Considered

South - Thu 09/Dec

East - Sun 21/Mar

West - Sat 20/Mar

North - Wed 14/Apr

Typical Peak Day Solar Incidence - Facade Considered

Radi

atio

n (W

/m²)

Impact of Solaveil, on differing facades at annual peak and minimum solar gain dates

00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00

7

6

5

4

3

2

1

0

Gain

(kW

)

00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00

12

11

10

9

8

7

6

5

4

3

2

1

0

EastFacing

Tues - 06/AprFri -15/Jan

00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00

6.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.50.0

Without SolaveilEast With Solaveil

SouthFacing

Sun - 14/FebWed -30/Jun

East /SouthFacing

Sat - 11/DecThu - 01/Jul

Gain

(kW

)

Gain

(kW

)

Time Time

Time

“with a 58% reduction in Solar Gain on already very efficient glazing, whilst also improving the occupied environment”

January February March April May June July August September October November DecemberLO

AD

Period

Cooling

Solar

Lighting

51%

57%

Solar and Cooling Load - With and Without Solaveil Applied

100%

80%

20 %

40%

60 %

Total LoadwithoutSolaveil

Solar LoadSavings after

Solaveil

Cooling LoadSavings after

Solaveil

Lighting LoadSavings after

Solaveil

Ventilation FanLoad Savingsafter Solaveil

Total Loadwith

Solaveil

Overall Reductions

88.9%

11.1%

70.7%

18.2%

59.8%

10.9%

55.7%

4.1%

100%

55.7%

over 40%

Savingon Space Energy Use

with application ofSolaveil

Yr 1 Yr 2 Yr 3 Yr 4 Yr 5 Yr 6 Yr 7 Yr 8 Yr 9 Yr 10 Yr 11 Yr 12 Yr 13 Yr 14 Yr 15 Yr 16 Yr 17 Yr 18 Yr 19 Yr 20

500,000

1,000,000

1,500,000

2,000,000

2,500,000

Energy CostIncreases

5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%

AED

Life Cycle

5% 5% 5%

Return On InvestmentSolaveil Supply and Installation

3 years, 4 Months

Saving after ROI20 year life cyclewith energy rises

AED 959,704

Saving after ROI20 year life cycleno energy rises

AED 576,614

Case Study Mixed Use Tower Located in UAE Facades Facing N/E/S/W

Floor Centres 3750 mm Existing Glazing ; SHGC 0.32 Shade Coefficient 0.36

Light Transmission 42%

External Glazing 80m 50% of perimeter

Occupancy Density 1/10 (75w sensible / 60w latent)Lighting Load 11.8 w/sqmEquipment 16 w/sqm

Dynamic Simulation Energy Models

Providing the ability to understand in detail, calculate in full and create the optimum solution and balance of light and temperature treatment

Micro louvre Light Shelves (MLS) top 1000 mm

Clear View (CV) middle 1000 mm

Enhanced Glare Control (EGC)lower 1200 mm

GlazedPanels3250

1400 mm

2400 mm

1700 mm

Preferred SolutionCombination of Micro Louvre Shelves (MLS), Clear View (CV) and lower Enhanced Glare Control (EGC)

SolaveilSolar Load Reductions

42 %58 %Saving

A Combination of ;

MLS SHGC 0.16(top) Solar Absorbance 8.2% Light Transmission 18%

CV SHGC 0.16(middle) Solar Absorbance 17% Light Transmission 22%

EGC SHGC 0.06(bottom) Solar Absorbance 20% Light Transmission 9.2%

Resulting in 58% reduction of Solar Gain

Overall Effects of Solaveil ApplicationHigher performance glazing, reduces solar gain. Effecting cooling requirementsAvoiding the use of blinds. Resulting in perimeter lighting ‘staying off’Opening the opportunity to rebalance fans to lower volumes. As a result of lower cooling loads

Annual Savings Cycle Energy Cost SavingsCooling Load with Solaveil

Solar Load with SolaveilCooling Load Savings

Solar Load SavingsLighting Load Savings

7 %

46 %

10 %

14 %

23 %

With 276 sqm of glazing, resulting in Return On Investment 3 years, 4 months. Objective measures, plus subjective well being improve-ments

With Energy prices remaining same over life cycle, total saving AED 576,614 after ROI cleared

With estimated 5% annual increase, providing total saving AED 959,704 after ROI for life cycle of Solaveil

room 101, CEO buildingdubai investment park

po box 73629, dubaiunited arab emirates

tel : +971 (0)4 8854249info@sbs.ae.orgwww.sbs.ae.orgimproving life cycles

SBS ONE

Currentwith Energy IncreasesWith Solaveilwith Energy IncreasesCurrentno Energy IncreasesWith Solaveilno Energy Increases

46%

57%

40%

57%

34%

58%

29%

58%

27%

58%

25%

58%

25%

58%

27%

57%

32%

57%

38%

57%

45%

57%