Bristolite Advantage
Our mission at Bristolite is to provide our customers with the highest quality products and supreme service at an exceptional value. We also aim to provide the industry with an abundance of accurate and useful information relative to daylighting and energy conservation. We take our corporate responsibility to our employees, associates, industry colleagues and customers very seriously and we see ourselves as stewards for the efficient use of sustainable carbon free energy.


Glazing Selector

Plastic Unit Skylight Glazings

  Bristol Acrylic Trituff Copolyester Tufflite Polycarbonate Tufflite I Polycarbonate Tufflite C/I Polycarbonate Energy Star Fiberlite Quasar Prismatic Nano Insulgel/Lumira Super Insulating Silica Aerogel Nano Insulgel II/Polygel Polycarbonate Coollite Infrared & UV Blocking Technology Coollite I Infrared & UV Blocking Technology Quasar LowE Infrared & UV Blocking Technology & Silica Aerogel or Polygel
Key Attribute(s) Industry Standard Greater Strength & Impact Resistance than Acrylic Best Impact Hurricane NOA Certified, Hail Resistant, Burglar Proof, Blast Resistant UFC/ASTM/GSA & FM Approved Best Strength & Leak-proof Best Light Transmission Excellent Insulator Low Solar Heat Gain & Ultraviolet Light Low Solar Heat Gain & Ultraviolet Light & Excellent Insulator Most Energy Efficient
IECC 2015 Energy Code Meets without controls climate zone 1, meets with controls climate zone 2-8 Meets with controls all climate zones Meets without controls climate zone 1, meets with controls climate zone 2-8 Meets without controls all climate zones Meets without controls all climate zones Meets with controls all climate zones Meets with controls all climate zones Meets without controls all climate zones Meets without controls all climate zones Meets without controls climate zone 1, meets with controls climate zone 2-8 Meets without controls all climate zones Meets without controls all climate zones
VLT Light Transmission % 53% 60% 60% 58% 50% 63% 70% 48% 48% 54% 50% 49%
NFRC 201-2010 Certified Test SHGC Solar Heat Gain Coefficient 0.31 0.50 0.26 0.20 0.22 0.46 0.47 0.31 0.32 0.26 0.20 0.24
NFRC 102-2100 Certified Test U Factor /Insulating Value 0.71 0.65 0.71 0.44 0.44 0.63 0.73 0.37 0.40 0.71 0.45 0.31
Haze /Light Diffusion % 98% 98% 98% 98% 100% 100% 100% 100% 100% 100% 100% 100%
Typical Glazing Configuration White Acrylic over Clear Acrylic White Copolyester over Clear Acrylic Clear Polycarbonate over White Polycarbonate White Polycarbonate over Clear MW Polycarbonate Panel Polycarbonate with Infrared & UV Blocking Technology over MW Polycarbonate Panel Fiberglass over Clear Acrylic Clear Impact Modified Prismatic over White Impact Modified Prismatic Clear Acrylic over Clear MW Polycarbonate panel filled with Silica Aerogel Clear Acrylic over Clear MW Polycarbonate panel filled with Polygel Acrylic with Infrared & UV Blocking Technology over Clear Prismatic Acrylic with Infrared & UV Blocking Technology over Clear MW Polycarbonate Panel Acrylic with Infrared & UV Light Blocking Technology over Clear MW Polycarbonate panel filled with Silica Aerogel or Polygel
Standard Dome Shape Bubble Radial Triarch Radial Triarch Radial Triarch Radial Triarch Bubble Radial Triarch Bubble Bubble Bubble Bubble Bubble
OSHA CFR Compliant Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Total Load Test 400 lbs. 800 lbs. 1,600 lbs. 1,600 lbs. 1,600 lbs. 2,200 lbs. 400 lbs. 400 lbs. 400 lbs. 400 lbs. 400 lbs. 400 lbs.
Hail Resistance Moderate Good Excellent Passed FM 2” Severe Hail Test Excellent Passed FM 2” Severe Hail Test Excellent Passed FM 2” Severe Hail Test Excellent Passed FM 2” Severe Hail Test Good Moderate Moderate Moderate Moderate Moderate
Rate of Burning UBC-26-7 /ASTM D635-06 CC2 CC1 CC1 CC1 CC1 CC1 CC2 CC2 CC2 CC2 CC2 CC2
Smoke Density ASTM D-2843-99 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass
Ignition Temperature (Self Ignition) ASTM D1929-96 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass
Warranty 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years

All skylights above are available with either zinc plated steel or architectural grade 6063-T5 aluminum frames. Frame types include, curb mount, self flashing (curb mount with an integral curb), or curb mount with a separate structural curb. All frames are designed with condensation gutters and non-clog weep holes. Frame options include, AAMA compliant thermal breaks, 1" polyboard insulation, double wall, wood nailer, louvers, rain guards, and custom outside/inside curb, curb height and flange dimensions. All glazings are available in alternative dome shapes including; bubble, radial triarch, pyramid and double hip except Energy Star Fiberlite.
Performance information obtained by testing glazing materials, dome sets and skylights to NFRC, NAFS, ICC, AAMA, UL, FM, IES and ASTM standards by Bristolite, material suppliers and independent third party laboratories.
OSHA compliance and load test results are for specific outer dome thicknesses.

 

Plastic Sheet Glazing Information

Material Light
Transmission
% Single
Light
Transmission
% Double
Light
Transmission
% Triple
SHGC
Single
Glazed
SHGC
Double
Glazed
SHGC
Triple
Glazed
High White Acrylic (WTH) 82 75 69 0.67 0.63 0.59
Medium White Acrylic (WTM) 53 49 45 0.55 0.50 0.48
Bronze Tinted Acrylic (BT) 27 25 23 0.50 0.46 0.42
Grey Tinted Acrylic (GT) 27 25 23 0.44 0.40 0.35
Clear Colorless Acrylic (CC) 95 92 85 0.87 0.84 0.80
White Prismatic Acrylic (WPM) 84 70 56 0.55 0.50 0.48
Clear Prismatic Acrylic (CPM) 96 94 90 0.94 0.90 0.86
U Factor Winter Heat Loss
15 mph wind
1.20 0.70 0.40
U factor Summer Heat Gain
7.5 mph wind
0.80 0.50 0.30

These values are approximate for unformed flat glazing sheets only. They may vary with material thickness and final configurations.
U Factor is similar for all above materials.

 

Glass Glazings

Bristolite procures superior quality glass products form the major architectural glass manufacturers nationwide. Because of the vast assortment and combinations of high performance coatings, colors and thicknesses it is not possible to list them all here. The following indicate a sampling of the most commonly used make-ups for overhead glazing and their properties. We recommend consulting with your design professional in selecting the appropriate glass type for your application and contact Bristolite for further information.
Insulating
Glass
Type
Exterior
Appearance
Aesthetics
Effects
Light
Transmission
%
Daily
Reflectance
Out %
Daily
Reflectance
In %
Winter
Nighttime
U Factor
Summer
Daytime
U Factor
SHGC UV
Transmittance
Clear Clear Transparent 80 15 15 0.47 0.49 0.07 < 1%
Bronze Tinted Light Brown 51 9 13 0.46 0.48 0.52 < 1%
Grey Tinted Light Grey 37 8 13 0.47 0.49 0.49 < 1%
Clear
LowE (3)
Reflective Transparent 1 13 11 0.29 0.37 0.45 < 1%
Reflective
(2) Bronze
Reflective Dark Brown 59 14 37 0.47 0.49 0.33 < 1%
Translucent
   White
Milky White 59 20 17 0.48 0.58 0.66 < 1%
  1. Clear glass is transparent flat glass that meets the requirements and tolerances of federal specification DD-G-451 d.
  2. All of the above glasses can be heat strengthened or tempered to meet federal standard Z97.1 and the Consumer Product Safety Commission Standard 16 CFR 1201 C1 and C2.
  3. The appearance and aesthetic effect of reflective glass is greatly affected by the location of the coated side. "(2)" means the coating is on the inside surface of the of the exterior lite.
  4. Based on laminated glass as the interior lite of the insulating unit cut off at 380 nanometers (nm) wavelength. Screening out ultra violet radiation can help protect materials. However, consult with your design professional on skylight placement and compatibility. There is no guarantee or warranty against fading.
  5. SOLAR HEAT GAIN COEFFICIENT (SHGC): Measures of how well a product blocks heat caused by sunlight. It is the fraction of incident solar radiation admitted through the product (both directly transmitted and absorbed and subsequently released inward).
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