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Visible Transmittance in Windows Explained

Visible Transmittance in Windows Explained

Visible transmittance is one of these important ratings which lets you know how much natural light will pass through the window. Searching for replacement windows means finding the most energy-efficient option to save money and stay comfortable in your home. While VT isn’t completely geared towards energy savings, it’s still an important component when it comes to finding the right window for the job.

If you're installing new windows for your home, it's important to know the type of visible transmittance rating you're looking for. Learn more about what VT is, how it's rated, and its' importance: #CustomWindowsTX Click To Tweet

Homeowners need to take into consideration different ratings of windows to get the best option as far as energy efficiency and preventing harmful rays. Visible transmittance is one of these important ratings which measures the amount of light that comes in. Let’s take a look at what visible transmittance is, how it’s rated, and its’ importance when searching for replacement windows:

What Visible Transmittance Is

Visible transmittance or VT rating is the measure of how much visible light travels through your window into your home. A window’s visible transmittance is ranked by the National Fenestration Rating Council. It only rates the amount of light passing through your window, not its’ energy efficiency, which would be a separate rating.

How Visible Transmittance is Rated

There are many factors that go into rating a window’s visible light transmittance. VT is measured as a percentage of the amount of light that passes through the window. It is not just the measurement of light through the glass, but includes things such as frames, sash and grids that can decrease visible transmission. Even the amount of panes on the window and the type of glass can affect the VT.

The Importance of Visible Transmittance

Homeowners and builders should know the importance of VT because it goes hand in hand with understanding other window energy ratings when choosing your windows. Many homeowners want the maximum amount of natural light without sacrificing efficiency, so selecting the right glass and window style becomes very important. The wrong Low-e, for example, may provide high VT ratings but also allow more heat and damaging UV rays into the home at the same time.

Likewise, seeking a window with a lower visible transmittance may be desired to tame rooms where the afternoon sun is most intense. A lower VT can be achieved in a number of ways without sacrificing window efficiency. Custom Windows always recommends windows that deliver the highest energy efficiency and can work with you to deliver the VT that is right for your home. The most common and most recommended solution is combining windows that deliver both high efficiency and high Visible Transmission because allowing more natural light into the home also means that you will not only use less energy from your air conditioning system but also from needing to use lights for fewer hours each day.

Installing Windows with the Right VT for Your Home

Now that you understand the visible transmittance rating of windows, you can speak with your trusted window design and installation expert to find the best window to suit your needs. Our team at Custom Windows of Texas is knowledgeable in all aspects of window ratings and energy efficiency for your home. If you’re interested in replacement windows or finding the right windows for new construction, get in touch with us to discuss your options and find the best fit.

Get connected to learn more about VT and other window ratings!

3 Stunning Window Designs for Your Remodel

3 Stunning Window Designs for Your Remodel

When searching for replacement window designs, you want something that complements your personal style and your home’s layout. New windows provide great benefits such as energy efficiency and cost savings, and they come in a variety of shapes and sizes. 

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What are some popular window redesign options?

No matter the style of your home, you have options when it comes to selecting your custom window design. Let’s take a look at some of the most popular types of windows that can bring sunlight into your homes, such as casement, awning, and picture windows:

  1. Casement Windows 
  2. Awning Windows
  3. Picture Windows

1) Casement Windows

Casement windows have hinges on the side, allowing you to open them like a door. They’re good for energy savings and home security as they can be shut securely. Their functionality is preferred for kitchens above the sink area, giving a traditional window style that can easily open and close.

2) Awning Windows

Awning windows are hinged at the top and open from the bottom, creating an awning effect when lifted. These windows are beneficial for allowing fresh air into the home without the rain getting inside, as the awning prevents. They are typically placed high up to provide privacy while allowing light into the room.

3) Picture Windows

A picture window is made with fixed panes, making it stationary. Its purpose is to create a picture frame effect for you to enjoy the outdoor scenery from the comfort of your home. These windows make a great addition to living rooms to open up the space.

Choosing the Perfect Window for Your Home

Take your time to familiarize yourself with these window designs and the other remodeling options available. Remember to work with a team of window replacement professionals to find the perfect window design and style for your home that will provide energy savings for years to come.


Get in touch with us to learn more about window designs to choose from!

Residential Window Code Requirements

Residential Window Code Requirements

If you’re looking to replace your existing windows in your older home, you may face the common issue of your windows not meeting building code requirements such as egress requirements. Egress residential window codes are in place to allow escape from any bedroom directly outside in case of an emergency. Other building code requirements address safety issues, such as when and where tempered glass is required in the home. Choosing a well-rounded window company that knows all relevant building codes will help ensure your home and family’s safety, and avoid costly corrections if you try to sell your home with non-compliant windows.   

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Operable Egress Windows are also known to be Emergency Escape and Rescue Openings (EERO). An operable window or door leading directly outside must be accessible in every bedroom in the case of an emergency and must meet specific clear opening sizes as well. 

Home Safety

Some locations in the home such as some bathroom windows, staircase windows, and near doors require tempered glass windows for safety. The most common situations where tempered glass is required in the home are:

  • The window within 24 inches of a door must use tempered glass
  • Any window larger than 9 square feet and less than 18 inches off the floor must use tempered glass
  • Any window less than 60 inches from the floor of a bathtub or shower must use tempered glass
  • Any window on a staircase landing or within 60 inches of a landing or staircase tread in any direction must use tempered glass

Required Egress

Egress requirements state that there must be an operable window or door in every bedroom that leads directly outside in case of emergencies. You can achieve this by installing windows and doors that meet the clear opening size requirements. The minimum dimensions to meet Egress requirements include:

  • The unobstructed opening must be a minimum of 20 inches wide and 24 inches high, though one or both dimensions will need to be greater than this
  • The clear opening must be a minimum of 5.7 square feet
  • The window sill can be a maximum of 44 inches above the floor

Choosing the Right Windows for Your Home

The window code governing installation was designed to help homeowners find the safest, most energy-efficient windows on the market. A trained and experienced company, such as the team at Custom Windows of Texas, has these rules in mind to eliminate any guesswork so that you can focus on customizing your home. By keeping your windows compliant with local regulations, you’re providing your family with a safe environment and energy-efficient windows guaranteed. 

Connect with us to learn more about how we meet and exceed window code requirements for your home.

Keep Things Peaceful at Home With Noise Reducing Windows

Keep Things Peaceful at Home With Noise Reducing Windows

If you’re looking for a peaceful home away from neighborhood noise, the first place to start is with noise-reducing windows. New windows not only maintain a peaceful atmosphere but provide other great benefits like energy efficiency. The unwanted noise from outside of your home can instantly be diminished by noise reduction windows and doors.

Noise-reducing windows can be a great investment for your home with many advantages. Learn about how they work and their benefits: #CustomWindowsTX #noisereduction #energyefficiency Click To Tweet

Noise from outside your home can affect the quality of your sleep and disrupt at-home meetings. At Custom Windows, we have a wide variety of sound blocking solutions for your home. Let’s take a look at how noise-canceling windows work in replacements and new construction. There are also many additional benefits of noise reduction windows to note!

Understanding Your Noise Blocking Windows 

The amount of blocked sound depends on the Sound Transmission Class (STC) rating system. Custom Windows of Texas’ sound reduction windows score between 33–46 on the scale, much higher than the 21–22 typical of most single-pane or wooden frame windows. 

  • Single Pane windows – usually 21 – 22 dB
  • Normal dual pane windows – generally from 27 – 29 dB, so standard dual pane windows will noticeably reduce the noise level that single pane windows allow

But what if you want to eke out more performance?

  • Offset glass thickness dual pane windows will improve the STC rating to around 32 – 33 dB. Importantly, using the offset glass method can help improve the performance without adding a significant amount of cost. Offset means that the outer pane glass thickness is different than the inner pane thickness. Usually, they are the same thickness but for technical reasons, but offsetting the thickness helps reduce the sound with minimal cost difference.
  • Laminate glass windows will improve the STC to 34 – 35 dB and they do a better job at reducing bass rumble as a truck or bus generates than regular glass. But, in comparison to the offset glass strategy, using laminate glass for the inboard pane adds tremendously to the cost. Where the offset glass adds a good performance improvement for a minimal cost difference, laminate will add additional incremental improvement at a higher cost.
  • Specialty window products may be required if you are near an airport or freeway, and need the best sound-reducing windows. These custom windows achieve STC ratings of at least 40 dB and can go as high as 50 dB. These are constructed as virtually two separate windows in one frame, so they are entirely different than a standard dual pane.

Other Beautiful Benefits of Replacing Windows

Replacing your windows with new and improved energy efficiency means you automatically receive the benefit of noise reduction. But you do have options to improve noise reduction future – just call and Custom Windows can help find the right solution for your needs!

Aside from providing a quiet environment, your replacement noise reduction windows provide the same or even greater energy efficiency than our already Energy Star rated windows, so adding noise reduction will not compromise the efficiency or style of your new windows.

Noise Reduction Solutions for Your Home

There are many levels and types of solutions that can help reduce the sound level from outside. The noise-reducing types of windows come in dual-pane, offset dual-pane, dual-pane with laminate glass for one of the panes are all available in aluminum, vinyl, composite, and clad wood windows. Choose from top noise reducing window brands at Custom Windows of Texas:

  • Amsco
  • American Window Systems
  • Andersen
  • MI Windows & Doors
  • NT Window
  • Sierra Pacific
  • Wincore

Enjoy Peace and Quiet Today!

Now that you know the ins and outs of noise reduction windows, get in touch with our team to start your window replacement process on your home. Enjoy a peaceful home that you feel safe in by working with Custom Windows of Texas. 

Connect with us to learn more about our noise-reducing window options.  

Hurricane Season Has Started Already?

Hurricane Season Has Started Already?

You’ve read that right – hurricane season is among us! Due to the supply chain disruptions that have impacted lead times in 2021 and will continue into 2022, we want our clients to know that now is the time to act on protecting your home from extreme weather. 

It won't be long before hurricane season begins. Is your home equipped to withstand the intense Houston weather? #CustomWindowsTX #hurricaneseason #coastalimpact Click To Tweet

With that being said, if you are considering making your home more secure throughout the 2022 hurricane season, or even planning to make your home more energy efficient in advance of the Houston heat, it makes sense to start today. Here’s how you can get started in the process:

Hurricane Season Has Already Started

Homeowners and businesses are told to prepare for Hurricane Season from the first of June to the end of November. However, this doesn’t mean that hurricanes can’t occur before or after those dates. By being proactive in keeping your property safe, you can ensure that your windstorm impact windows and doors are securely installed for maximum protection when the time does come.

Most manufacturers of impact windows in Houston and even non-impact windows are facing production lead times of 4-5 months from the order date, so it’s crucial to have window installation done in time for the peak of summer heat or the start of the traditional hurricane season. With Custom Windows’ financing options, you may not have to pay anything until your windows are installed. Don’t wait to protect your home, start today!

Coastal Impact Windows & Doors 

To protect your home all year long from major hurricanes and storm surges, you’ll need to be equipped with coastal impact windows and doors. Our impact windows and hurricane protection doors come in many different types such as Vinyl, Aluminum, Fiberglass, and Clad Wood. These coastal windows and doors are from trusted brands such as Andersen, MI, Wincore, Sierra Pacific, and ProVia, and meet building code requirements for your region. 

Energy Efficient Solutions

Aside from long-term protection from sustained winds and flying debris, impact windows and doors also provide a number of benefits, like noise reduction and improved security. Each window and door installed is Energy Star rated across a wide range of partners, including Andersen, Sierra Pacific, American Window Systems, NT, ProVia, Wincore, NT, and others. Whether you need vinyl, aluminum, composite, fiberglass, or clad wood, we have a range of energy-efficient solutions for your home.

Protect Your Home From This Year’s Extreme Weather

Now is a good time to act on keeping your home safe from this hurricane season and the weather events to come. Not only will you feel safe in your home, but you’ll see great energy savings and UV ray protection from your coastal windows and doors. 

Get in touch with our installation experts to discuss your replacement needs and financing options–plan your project today and start payments when the products are installed!

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