Education& Resources helping homeowners and builders make informed choices about Building homes that last

Our ultimate goal is to create a community of builders and homeowners who are dedicated to improving the quality of life in their neighborhoods and communities.

Education& Resources helping homeowners and builders make informed choices about Building homes that last

Our ultimate goal is to create a community of builders and homeowners who are dedicated to improving the quality of life in their neighborhoods and communities.

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The 3 Best Types of Window Glass For Your Home

May 05, 20243 min read

Hello everyone, TJ here from Sanctified Homes, along with our resident window expert, Steve from Lindsay Windows. Today, we're delving into a topic that every homeowner should consider when building or renovating their home—the types of glass in your windows. Understanding the different types of glass can drastically affect your home’s energy efficiency, interior comfort, and even your furniture’s longevity. Let’s explore the three main types of window glass and their pros and cons to help you make the best choice for your home.

1. Low-E 270 Glass


  • Energy Efficiency: Low-E 270 glass contains two coatings of Low-E (low-emissivity) material, which reflects heat back into the room during winter and keeps out the solar heat during summer. This helps in maintaining consistent indoor temperatures.

  • Light Transmission: With 70% light transmittance, this glass allows plenty of natural light to enter your home while still blocking out harmful UV rays.


  • Limited Solar Heat Gain: This type of glass may not be ideal for colder climates where you want to maximize solar heat gain during the winter months.

2. Low-E 366 Neat Glass


  • Advanced Coating: Featuring three coats of Low-E material, Low-E 366 Neat glass offers excellent thermal performance and UV protection. The ‘neat’ coating also means it has a self-cleaning feature that helps reduce water spots and dirt buildup, keeping your windows looking cleaner.

  • Aesthetics and Comfort: It provides good light transmittance while minimizing the sun’s glare, making it comfortable for homes with excessive sun exposure.


  • Cost: The additional coatings and neat features make it more expensive than some other glass types.

  • Reduced Solar Heat Gain: Similar to Low-E 270, the higher level of sun protection also reduces the beneficial solar heat gain which might be a downside in colder regions.

3. Low-E 180 i89 Glass


  • Optimal for Cold Climates: Specifically designed for colder regions, this glass option has a unique ability to maximize solar heat gain while still providing excellent thermal insulation, thanks to its innovative coating.

  • Versatility: It strikes a balance between high energy efficiency and maintaining a warm, sunny interior during the cold months.


  • Complexity in Matching Needs: While it’s great for cold climates, it may not be the best option for areas with mixed climates without additional modifications to suit summer conditions.

Choosing the Right Glass for Your Home

When selecting the type of window glass, consider not only the climate but also other factors like the orientation of your home, the type of room, and even the materials used within your interiors. For instance, if you have hardwood floors or valuable artwork, you might want to opt for glass that offers higher UV protection to prevent fading and damage.

Moreover, if noise is a concern due to your home’s location near busy streets or highways, consider options like STC (Sound Transmission Class) rated glass, which can significantly reduce noise levels, making your home a quieter, more peaceful place.


Choosing the right window glass is crucial not only for energy efficiency but also for the comfort and durability of your home’s interiors. By understanding the different types of glass and their specific benefits, you can make an informed decision that matches your home’s needs.

For more detailed information on energy-efficient building materials and tips for optimizing your home’s environmental impact and comfort, check out our resources at Sanctified Homes. Remember, the right windows not only save you money but also enhance your living environment.

As always, don’t forget to raise your standard in every aspect of your home building or renovation project. We’ll talk to you soon!

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TJ Vitense

Founder of Sanctified Homes and Construction & the Blessed to Build Foundation, TJ believes in raising the industry standards. With his company Strategic Real Estate Experts, he helped hundreds of families buy and sell homes. And, now manages new home construction as one of Wisconsin's best home builders.

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