Short answer

Incorporate retro-reflective coatings into blind designs to enhance solar control and reduce glare, thereby improving interior comfort and energy performance.

Field: Final Production
Source: Energy and Buildings (2017)
Method: Experimental measurement and data-driven modeling
Evidence: Strong effect

Specialized retro-reflective coatings, when applied to simple blind geometries, can effectively manage solar heat and glare without sacrificing visual connection to the outdoors. This final production research insight is drawn from a 2017 study published in Energy and Buildings. Using Experimental measurement and data-driven modeling, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Incorporate retro-reflective coatings into blind designs to enhance solar control and reduce glare, thereby improving interior comfort and energy performance.

Study

Final ProductionHigh ImpactStrong effect

Retro-reflective coatings on blinds can significantly reduce glare and solar gain while maintaining exterior views.

Specialized retro-reflective coatings, when applied to simple blind geometries, can effectively manage solar heat and glare without sacrificing visual connection to the outdoors.

Energy and Buildings · 2017

Key Findings

01Retro-reflective coatings can be effectively characterized using an extended gonio-photometer.
02A data-driven reflection model for these coatings can be created and implemented in Radiance.
03Blinds with retro-reflective coatings demonstrate significant potential in reducing glare and solar gain, even with simple geometries.
04The coating maintains exterior views while controlling solar heat.

Application

Design takeaway

Incorporate retro-reflective coatings into blind designs to enhance solar control and reduce glare, thereby improving interior comfort and energy performance.

How to apply

When designing or specifying window treatments, consider retro-reflective coatings as an option for advanced glare and solar heat management, especially in spaces with significant sun exposure.

Project actions

01When researching materials, look for those with specific optical properties that can solve a design problem.
02Consider how to accurately measure and represent the performance of novel materials in your design project.

Method & Evidence

AimHow can the optical properties of retro-reflective coatings be accurately modeled and integrated into daylight simulation software to assess their impact on glare and solar gain in building interiors?

MethodExperimental measurement and data-driven modeling

ProcedureA scanning gonio-photometer was extended to measure the Bidirectional Reflection Distribution Function (BRDF) of a retro-reflective coating across the solar spectrum. These measurements were used to create a data-driven reflection model compatible with the Radiance daylight simulation software. This model was then applied to simulate the performance of blinds with this coating in an office setting under sunny conditions, comparing it to diffuse and specular finishes.

ContextBuilding facade design, interior environmental control, daylight simulation

Variables

IVType of blind coating (retro-reflective, diffuse, specular)

DVDaylight supply, probability of glare, solar gains

CVBlind geometry, office layout, sky conditions, orientation

Strengths & Limitations

Strengths

+Development of a novel measurement extension for gonio-photometry.
+Integration of measured data into a widely used daylight simulation tool.

Limitations

The complexity of setting up precise optical measurements can be a barrier. Simulating complex lighting conditions accurately requires specialized software and expertise.

Reliability & validity

The use of a calibrated gonio-photometer and established simulation software like Radiance lends reliability and validity to the findings regarding optical properties and their simulated impact.

Think critically

To what extent can the principles of retro-reflection be applied to other building elements beyond blinds to manage solar energy and light?

Design Principles

"Optical properties of surface treatments can be precisely measured and modeled to optimize building performance."

This research offers a practical solution for improving the performance of building facades, particularly in office environments. By understanding and modeling the optical properties of these coatings, designers can create more comfortable and energy-efficient interior spaces.

What This Means for Your Design

Special coatings on blinds can bounce sunlight back out, stopping it from heating up a room and causing glare, while still letting you see outside.

How to use in your project

1.Use this research to justify the selection of specific advanced materials based on their measurable performance benefits, such as glare reduction or solar gain control.

Add to My Project

Quick Cite

Paragraph starter

This research demonstrates that retro-reflective coatings on blinds can significantly reduce solar gain and glare while maintaining exterior views. By accurately modeling the optical properties of such coatings, designers can leverage them to create more comfortable and energy-efficient interior environments, as shown by their application in daylight simulation software.

Source

Energy and Buildings

Characterization and data-driven modeling of a retro-reflective coating in Radiance

journal · 2017

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Questions About This Research

What does the research say about retro-reflective coatings on blinds can significantly reduce glare and solar gain while maintaining exterior views?: Incorporate retro-reflective coatings into blind designs to enhance solar control and reduce glare, thereby improving interior comfort and energy performance. Evidence: Energy and Buildings (2017).
Why does "Retro-reflective coatings on blinds can significantly reduce glare and solar gain while maintaining exterior views." matter for design?: This research offers a practical solution for improving the performance of building facades, particularly in office environments. By understanding and modeling the optical properties of these coatings, designers can create more comfortable and energy-efficient interior spaces.
How can designers apply this research?: Incorporate retro-reflective coatings into blind designs to enhance solar control and reduce glare, thereby improving interior comfort and energy performance.
What were the main findings?: Retro-reflective coatings can be effectively characterized using an extended gonio-photometer.. A data-driven reflection model for these coatings can be created and implemented in Radiance.. Blinds with retro-reflective coatings demonstrate significant potential in reducing glare and solar gain, even with simple geometries.. The coating maintains exterior views while controlling solar heat.
What research method was used?: Experimental measurement and data-driven modeling.
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2017 journal from Energy and Buildings.
What should I do differently in my next project?: When designing or specifying window treatments, consider retro-reflective coatings as an option for advanced glare and solar heat management, especially in spaces with significant sun exposure.
What are the limitations?: The study focused on a specific office layout and sunny sky conditions; performance may vary under different architectural contexts or weather patterns. The modeling is specific to the tested coating.