---
title: "Choosing Glass Options"
url: https://petdoorproducts.com/glass-options/
updated: 2024-05-27
---

# Choosing Glass Options

### Choose from (4) glass types below!

#### **LoĒ (or Low Emissivity)**

Refers to a surface condition that emits low levels of radiant thermal (heat) energy

#### Visible Light Transmittance

The amount of light in the visible portion of the spectrum that passes through the glazing material and glass unit

#### Fade Transmission

The portion of energy transmitted in a spectral region from 300 to 600 nanometers. This region includes all of the ultraviolet energy and part of the visible spectrum, and will give the best representation of relative fading rates. The lower the number, the better the glass is for reducing fading potential of carpets and interior furnishings.

#### Solar Heat Gain Coefficient

The amount of solar radiation that enters a building as heat. The lower the number, the better the glass is at preventing solar gain.

## LoĒ 366* Glass Type

#### *Ultimate Glass for All Climates *Our Recommended Glass Option*

[Learn More](https://www.cardinalcorp.com/products/coated-glass/loe-366/)

| Visible Light Transmittance | 65% |
| Fade Transmission | 0.05 |
| Solar Heat Gain Coefficient | 0.27 |

[Choose this Glass Type](https://petdoorproducts.com/product/sliding-glass-dog-door/)

## LoĒ 270 Glass Type

#### *Glass for All Climates*

[Learn More](https://www.cardinalcorp.com/products/coated-glass/loe-366/)

| Visible Light Transmittance | 70% |
| Fade Transmission | 0.14 |
| Solar Heat Gain Coefficient | 0.37 |

[Choose this Glass Type](https://petdoorproducts.com/product/sliding-glass-dog-door/)

## LoĒ 340 Glass Type

#### ***Solar and Glare Control***

***[Learn More](https://www.cardinalcorp.com/products/coated-glass/loe3-340/)***

| Visible Light Transmittance | 39% |
| Fade Transmission | 0.2 |
| Solar Heat Gain Coefficient | 0.18 |

[Choose this Glass Type](https://petdoorproducts.com/product/sliding-glass-dog-door/)

## Clear Glass Type

#### ***No LoĒ Coatings***

| Visible Light Transmittance | 82% |
| Fade Transmission | 0.58 |
| Solar Heat Gain Coefficient | 0.78 |

[Choose this Glass Type](https://petdoorproducts.com/product/sliding-glass-dog-door/)

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