PERFORMANCE 17.May.

2020 Prepared for Ismet Mehmeti

By Avdullah BERISHA
CALCULATOR

Banja e Kllokotit - Skylight

Thermal
Visible Light Solar Energy Properti
es
Glass 1 Glass 2 Glass 3
Make-up Name & & & U-Value
Transmi Transmi
Coating Coating Coating ttance Reflectance Color Reflectance Shading (Ug
ttance Solar Factor
Rendering
(g%)
Coefficient W/m²·K)
Index (Ra) (sc)
Visible (τv [per ISO
ρv % out ρv % in Solar (τe %) ρe % out ρe % in
%) 10292]

SunGua
rd® SN
70S HT Guardia Guardia
Banja e Kllokotit - (CE) on n n
68 11 13 93.0 33 33 30 0.38 0.44 1.6
Skylight Guardia ExtraCl ExtraCl
n ear (CE) ear (CE)
ExtraCl
ear (CE)
Calculation Standard: ISO 9050: 2003

Banja e Kllokotit - Skylight

Outdoors
Guardian ExtraClear (CE) #1 -----
GLASS 1
Thickness = 10mm #2 SunGuard® SN 70S HT (CE)

GAP 1 10% Air, 90% Argon, 16mm

Guardian ExtraClear (CE) #3 -----

GLASS 2
Thickness = 5mm #4 -----
INTERLAYER 1 PVB Clear 0.76mm (CE)
Guardian ExtraClear (CE) #5 -----
GLASS 3
Thickness = 5mm #6 -----

Total Unit (Nominal) = 36.762 mm Slope = 5°

Estimated Nominal Glazing Weight: 49.42 kg/m²

Indoors

Important Notes

Calculations and terms in this report are based on ISO 9050: 2003 and ISO 10292: 1994. The performance values shown above
represent nominal values for the center of glass with no spacer system or framing.

Laminated products:
It is not guaranteed that modeled laminated configurations will be compliant with relevant laminated safety regulations unless
specifically declared for Guardian products. It is the user’s sole responsibility to assess if the final laminated product should be
certified according to relevant standards and ensure compliance with laminated safety regulations.

Additional consequences for laminated glass with coating facing interlayer (due to contact between coating and interlayer) may
include (not limited to): significant decrease of safety performance for some coating and interlayer combinations; loss of thermal
insulation performance of surface facing the interlayer; noticeable color change; other performance deterioration.

Non-specular products (translucent or diffuse):

The performance measurement for non-specular (translucent or diffuse) materials such as translucent interlayers or acid etched glass
surface, or surface with ceramic frit is limited by the current experimental technologies. Since measurements capture physically only a
part of the resulting radiation, calculated performance results provided herein and based on such measurements are not compliant
with any standard (including EN 410) and may only be used as a general reference. Actual values may vary significantly based upon
exact fabrication process, as well as type, thickness and color of used non-specular material.

Explanation of Terms according to ISO 9050: 2003 and ISO 10292: 1994.

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Visible Light Transmittance (Tv, %) is the percentage of incident light in the wavelength range of 380 nm to 780 nm that is
transmitted by the glass.

Ultraviolet (UV) Transmittance (Tuv, %) is the percentage of the incident solar radiation transmitted by the glazing in the 300 nm to
380 nm range. The relative spectral distribution, Sλ, used to calculate the UV-transmittance is derived from the global solar
irradiance given in ISO 9845-1:1992, Table 1, column 5.

Solar Energy Direct Transmittance (Te, %) is the percentage of solar energy at normal incidence directly transmitted by the glass.
Solar Energy is the radiant energy from the sun having a wavelength range of 300 nm to 2500 nm at an air mass of 1.0, global,
per CIE #85: 1989.

Visible Light Reflectance Outdoors/Indoor (Rv out/in, %) is the percentage of incident visible light directly reflected by the glass.

Solar Direct Reflectance Outdoors/Indoors (Re out/in, %) is the percentage of incident solar energy directly reflected by the glass.

Solar Energy Absorptance (Ae, %) is the percentage of the sun's energy that is absorbed by glass.

Shading Coefficient (sc) is Solar Factor divided by 0.87. It is a measure of the solar heat gain referenced to 3 mm clear glass which
has the designated value of 1.00.

Solar Factor or Total Solar Energy Transmittance or g-value (g%) is the total solar radiation transmitted by the glass.

Secondary Heat Transfer Coefficient (qi) ) is the result of heat transfer by convection and longwave IR-radiation of that part of the
incident solar radiation which has been absorbed by the glazing.

CIE damage factor (τdf) is the factor associated with solar radiation in the wavelength range of 300 nm to 600 nm which may
contribute to damage of materials.

Skin damage factor (Fsd) is the factor associated with solar radiation in the wavelength range of 300 nm to 400 nm which may
contribute to damage of skin.

Colour Rendering Index in transmission, D65 (Ra) is the change in colour of an object as a result of the light being transmitted
through the glass.

U value - parameter of glazing which characterizes the heat transfer through the central part of the glazing, i.e. without edge effects,
and states the steady-state density of heat transfer rate per temperature difference between the environmental temperatures on each
side.

The U value is given by: 1/U = 1/he +1/ht + 1/hi

Where he and hi are the external and internal heat transfer coefficients; ht is the total thermal conductance of the glazing. The U
value is given in watts per square metre Kelvin [W/(m²×K)].

The external heat transfer coefficient (he) is a function of the wind speed near the glazing, the emissivity and other climatic
factors. For ordinary vertical glass surfaces the value of (he) is standardized to 23 W/(m²×K) for the purposes of comparison of
glazing U values.

Corrected emissivity of uncoated soda lime and borosilicate glass surface is 0,837. This procedure does not consider the
improvement of the U value due to the presence of externally exposed coated surfaces with an emissivity lower than 0,837.
Temperature difference between bounding glass surfaces is 15 K. Mean temperature of gas space is 283 K.

Emissivity is the ratio of the radiance from the surface to that from a black body viewed under identical optical and geometrical
conditions and at the same temperature. The emissivity value given to a material is the ratio of heat emitted compared to a black
body, on a scale of 0 to 1. A black body would have an emissivity of 1 and a perfect reflector would have a value of 0.

Normal Emissivity (εn) refers to the ratio, in a direction normal to the surface, of the emissive power of the surface of the glass
to the emissive power of a black body.

Corrected Emissivity (ε) is calculated by multiplying the normal emissivity (εn) by a suitable correction coefficient, selected
according to the normal emissivity value. The values of the correction coefficients were decided on the basis of extensive
measurements of the angular emissivity of uncoated glass, borosilicate glass and glass ceramics and of architectural coated
glass. The corrected emissivity of uncoated float glass, borosilicate glass and glass-ceramics at 283 K was standardized at
0.837.

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Disclaimer
This performance analysis is provided for the limited purpose of assisting the user in evaluating the performance of the glass products
identified on this report.

Spectral data for products manufactured by Guardian reflect nominal values derived from typical production samples or CE Initial
Type Testing and subject to variations due to manufacturing and calculation tolerances. Spectral data for products not manufactured
by Guardian were derived from the LBNL International Glazing Database and have not been independently verified by Guardian.
Guardian recommends a full-size mock-up be approved.

The values provided herein are generated according to established engineering practices and applicable calculation standards. Many
factors may affect glazing characteristics, including glass size, building orientation, shading, wind speed, type of installation,
production process and others. The applicability and results of the analysis are directly related to user inputs and any changes in
actual conditions can have a significant effect on the results. It is the responsibility of the users of the analysis to ensure that the
intended application is appropriate and complies with all relevant laws, regulations, standards, codes of practices, processing
guidelines and other requirements. Guardian makes no guarantee that any glazing modeled herein is available from Guardian or any
other manufacturer. The user has the responsibility to check with the manufacturer regarding availability of any glass type or
make-up.

While Guardian has made a good faith effort to verify the reliability of the tools used for this analysis, they may contain unknown
programming errors that could result in inaccurate results. The user assumes all risk relating to the results provided and is solely
responsible for selection of appropriate products for user's application. Guardian makes no express or implied warranty of any kind
with respect to the tools used by Guardian and this analysis. There are no warranties of merchantability, non-infringement or fitness
for a particular purpose with respect to the tools used by Guardian and this analysis and no warranty shall be implied by operation of
law or otherwise. The only warranties applicable to Guardian products are those separately provided in writing for each product. In no
event shall Guardian be liable for direct, indirect, special, consequential or incidental damages of any kind relating to or resulting from
use of Guardian tools and analyses.

Trademarks owned by Guardian Industries, LLC and/or its affiliates may be registered in the United States and other jurisdictions. All
other trademarks are property of their respective owners.

Program Version: 4.1.0.8650

Database Version: 20200430

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