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Your Comprehensive Guide to Retrofit Windows – Save Energy and Money

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Your Comprehensive Guide to Retrofit Windows – Save Energy and Money

Welcome to your complete guide on retrofit windows, a practical and affordable solution for upgrading your home’s energy efficiency. At SilverLine Exteriors, we believe in empowering homeowners with information to make the best decisions about their home improvements.

Understanding Retrofit Windows

First, let’s clear the air on what retrofit windows actually are.

Retrofit windows, also known as replacement windows, are custom-built to fit into the existing window opening in your home. They’re designed to replace your old windows without disturbing the surrounding trim or interior wall, making them an excellent choice for preserving the integrity of the existing building envelope and aesthetics. 

The most common type of retrofit windows are vinyl windows. They are designed with a flat exterior flange on outside of the window frame. This is also known as the rebate flange. This flange covers up the old window frame, and makes the installation easy, clean and seamless with the exterior siding.

retrofit windows flange

retrofit / rebate flange

This design is quite different from the new construction frame, which has a nail-on flange. As shown in the photo here, nail-on flanges have punched holes that allow for fasteners to secure the window from the outside. However, the retrofit windows are typically fastened on the side from the interior.

nail on window flange

nail on window flange

The Benefits of Retrofit Windows

Why should you consider retrofit windows for your home? Here are some compelling reasons:

  • Energy Efficiency: Retrofit windows are designed to provide superior insulation, helping keep your home warm in the winter and cool in the summer. This can lead to significant savings on your energy bills over time.
  • Cost-effectiveness: Compared to new construction windows, retrofit windows offer a more affordable solution for upgrading your home’s windows. The installation process is less disruptive and often quicker, saving you labor costs as well.
  • Ease of Installation: As these windows are custom-built to fit your existing window openings, the installation process is straightforward and fast. Whether you’re embarking on a DIY retrofit window replacement or hiring a professional, you’ll appreciate the hassle-free installation process.
  • Variety: With retrofit windows, you have a wide range of styles, colours, and materials to choose from. This makes it easy to find windows that match your home’s architectural style and personal aesthetic.

Investing in retrofit windows can drastically improve your home’s energy efficiency, aesthetic appeal, and overall value. Stay tuned for more on the installation process and cost considerations in our upcoming sections.

The Process of Installing Retrofit Windows

Retrofit windows offer a straightforward installation process, one of the main reasons homeowners find them appealing. In general the process involve the following main components:

  1. Measurements: The first step involves accurately measuring the existing window openings to ensure your retrofit windows fit perfectly.
  2. Removing Old Windows: The old window sashes, stops and tracks are removed, while the original frame is preserved. This helps maintain your home’s existing aesthetic.
  3. Installation: The new retrofit window is then installed in the existing frame. Because they’re custom-built to fit, this process is relatively quick and uncomplicated.
  4. Insulation: Once the new window is securely in place, the gaps are insulated. This step is crucial for maximizing your window’s energy efficiency.
  5. Finishing Touches: Finally, the interior trim is reinstalled or new trim is added, and the exterior is sealed.

For homeowners who are handy, a DIY retrofit window installation can be an engaging project. However, with different existing siding on the home, you may need different types of flashing to ensure proper water shedding. To ensure the best results and maintain the manufacturer’s warranty, it might be best to hire professionals like the experienced team at SilverLine Exteriors.

retrofit windows installation

Cost Considerations for Retrofit Windows

Understanding the cost of retrofit windows is an important part of planning your home improvement project. Here’s what you should consider:

  • Window Quality: High-quality windows might have a higher upfront cost, but they often offer better energy efficiency and longevity. This can result in cost savings over time.
  • Installation: If you’re hiring professionals for your window installation, consider their fees. Remember, a proper installation is crucial for the performance and durability of your windows.
  • Energy Savings: Retrofit windows can lead to significant savings on your energy bills. Customers may also qualify for government rebates when choosing EnergyStar windows. We have a separate guide on how to maximize your window rebates. 
  • Home Value: New windows can improve the curb appeal and value of your home. If you plan to sell in the future, this is a beneficial factor.

In general, retrofit windows are a cost-effective option compared to new construction windows. They require less labor for installation and offer energy-saving benefits that can offset the initial cost over time.

Making an informed choice about retrofit windows for your home means considering both the initial investment and the potential long-term savings. In the next section, we’ll compare retrofit windows to new construction windows to help you make the best decision for your home.

Comparing Retrofit Windows and New Construction Windows

When planning a window replacement project, it’s crucial to understand the difference between retrofit windows and new construction windows. Let’s explore the key differences:

  • Installation: Retrofit windows are installed in the existing window opening, preserving the original frame, trim, and interior. On the other hand, new construction windows require the complete removal of the existing window, including the frame, which often involves more labor and higher installation costs.
  • Cost: Due to the less intensive installation process, retrofit windows are usually more affordable than new construction windows.
  • Home Disruption: Retrofit windows cause minimal disruption to your home’s structure and aesthetics, while new construction windows may require significant changes, especially in older homes. If your existing home has good building envelope, retrofit may be a better option because of it’s ease of install and minimal disruption. However, if you are updating the look of your home, new construction style installation provides more flexibility. 

Your choice between retrofit windows and new construction windows will largely depend on your specific needs, budget, and the condition of your existing envelope condition. 

Choosing the Right Retrofit Windows for Your Home

Choosing the right retrofit windows involves considering several factors. Here’s a handy guide:

  1. Style: From sing-hung to casement to picture windows, there are various styles to choose from that will best fit your home’s architectural style.
  2. Energy Efficiency: Look for features like double glazing and Low-E coating, which can improve a window’s energy efficiency. Be sure to check out the windows Energystar rating before purchasing. 
  3. Cost: Keep in mind both the initial cost of the windows and potential long-term energy savings.
  4. Installation: Decide whether you’ll take on a DIY installation or hire professionals. Remember, installation can impact the performance and lifespan of your windows.

Whether you’re looking for the best retrofit windows on the market or the most affordable options, SilverLine Exteriors is here to guide you through your window replacement journey.

Conclusion

Retrofit windows present an excellent solution for homeowners looking to improve energy efficiency, enhance aesthetic appeal, and increase the value of their homes. They offer a variety of styles, are cost-effective, and provide a seamless installation process that causes minimal disruption to your home. Whether you’re conducting a minor renovation or planning a major home improvement project, retrofit windows deserve serious consideration.

Remember, choosing the right windows is crucial, but equally important is ensuring they’re installed correctly. SilverLine Exteriors is here to provide guidance and professional installation services to ensure your retrofit windows serve you well for years to come.

Frequently Asked Questions

Here are answers to some of the most commonly asked questions about retrofit windows:

  • What are retrofit windows?
    Retrofit windows, also known as replacement windows, are custom-built windows designed to fit into your existing window openings. For a detailed guide on choosing the right window company, you might want to read our post on this topic.
  • How are retrofit windows installed?
    Retrofit windows are installed in the existing window frame, preserving the original trim and interior. The old window sashes and tracks are removed, and the new window is installed in their place. If you’re considering a full window replacement, be sure to avoid these common mistakes people make when replacing windows in Vancouver.
  • Are retrofit windows energy efficient?
    Yes, retrofit windows are designed to provide superior insulation, which can lead to significant savings on your energy bills.
  • How much does it cost for vinyl replacement windows?
    The cost of retrofit windows depends on factors like the window size, type, and material, as well as installation costs. In general, they are a more cost-effective option compared to new construction windows.
  • Can I install retrofit windows myself?
    While a DIY retrofit window installation is possible, for the best results and to maintain the manufacturer’s warranty, it’s often best to hire professionals.

We hope this guide has given you a comprehensive understanding of retrofit windows. For more advice or professional installation services, don’t hesitate to contact us at SilverLine Exteriors.

 

low e coating

What is Low E Coating and How Does It Work?

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What is Low E Coating and How Does It Work?

1. Introduction

As homeowners and builders become increasingly conscious of the importance of energy efficiency in windows, Low E coatings have emerged as a popular solution for improving their performance. In this comprehensive guide, we will delve into the world of Low E coatings, exploring their types, manufacturing processes, and benefits. Discover how these coatings can contribute to your home’s energy efficiency and comfort.

Table of Contents

  1. Introduction

  2. What is Low E Coating?

  3. Soft Coat vs. Hard Coat Low E Coatings and Manufacturing Process

  4. How Low E Coatings Work?

  5. Benefits of Low E Coatings

  6. Leading Manufacturers of Low E Glass Products

  7. The Importance of Proper Installation and Maintenance of Low E Coated Windows

  8. Conclusion

2. What is Low E Coating?

a. Definition of Low E (low-emissivity) coating

Low E coatings are thin, transparent layers of metal or metallic oxide applied to window glass. Their primary purpose is to reduce the amount of heat transfer through windows, thus improving the overall energy efficiency of a building.

b. Brief history and development of Low E coatings

In the 1930s and 1940s, researchers started investigating the use of thin metal coatings on glass to improve its thermal properties. The energy crisis of the 1970s, spurred by rising oil prices and a growing awareness of the need for energy conservation, prompted renewed interest in developing energy-efficient solutions for buildings. However,  it wasn’t until the late 1980s that these coatings gained widespread recognition and adoption due to advancement in technology.

C. Types of Low E coatings

Low E coatings can be broadly categorized into two types:

i. Passive Low E coatings (Low-E1)

Passive Low E coatings, also known as Low-E1, are designed to minimize heat loss in colder climates by reflecting heat back into the building. These coatings typically have a higher solar heat gain coefficient (SHGC) which means they allow more solar heat to pass through the glass. For example, a Low-E1 coated window could have a SHGC of around 0.50, which means that it allows 50% of the solar heat to pass through. The U-factor, a measure of heat transfer, for these windows can be as low as 0.28, indicating excellent insulation properties and reduced heat loss.

ii. Solar control Low E coatings (Low-E2 and Low-E3)

Solar control Low E coatings, including Low-E2 and Low-E3, are designed to reduce solar heat gain in warmer climates or for buildings with significant sun exposure. These coatings have a lower SHGC, meaning they allow less solar heat to pass through the glass. A typical Low-E2 coated window might have a SHGC of around 0.30, while a Low-E3 coated window could have an even lower SHGC of around 0.25. The U-factor for these windows can also be low, ranging from 0.28 to 0.30, indicating good insulation properties and energy efficiency.

By incorporating Low E coatings with optimal performance metrics, homeowners and building owners can achieve substantial energy savings and heat gain reduction, leading to a more comfortable and energy-efficient indoor environment.

 

3. Soft Coat vs. Hard Coat Low E Coatings and Manufacturing Process

a. Comparison of soft (sputter) and hard (pyrolytic) coatings

Soft coat Low E coatings, also known as sputter coatings, are created by depositing multiple layers of metal or metallic oxide onto the glass in a vacuum chamber. On the other hand, hard coat Low E coatings, or pyrolytic coatings, are formed by applying a thin layer of metal oxide directly onto the glass surface during the manufacturing process.

b. Pros and cons of each type

Soft coat Low E coatings generally offer superior performance in terms of energy efficiency, solar control, and UV protection. However, they can be more susceptible to damage and are therefore always coated on the interior facing side of a dual pane sealed unit. Hard coat Low E coatings, while not as efficient as soft coat coatings, are more durable and easier to handle.

c. Factors to consider when choosing between soft coat and hard coat

When deciding between soft coat and hard coat Low E coatings, factors such as climate, window orientation, and building design should be taken into consideration. Additionally, it is essential to weigh the performance benefits against the cost and durability of each type.

d. Different methods for applying Low E coatings

As mentioned earlier, there are two primary methods for applying Low E coatings:

i. Sputter coating

This process involves depositing multiple layers of metal or metallic oxide onto the glass surface in a vacuum chamber. Sputter coating is typically used to produce soft coat Low E coatings.

ii. Pyrolytic coating

Pyrolytic coating, also known as chemical vapor deposition, involves applying a thin layer of metal oxide directly onto the glass surface during the manufacturing process. This method is used for creating hard coat Low E coatings.

e. How the manufacturing process affects coating performance

The manufacturing process can have a significant impact on the performance of Low E coatings. Soft coat Low E coatings are generally more effective at reducing heat transfer, while hard coat Low E coatings are more durable and resistant to scratches and other damages. The choice between the two methods should be made based on factors such as the desired performance, climate, and specific requirements of the building.

4. How Does Low E Coating Work?

a. Explanation of emissivity and its role in heat transfer

Emissivity refers to the ability of a material to emit or absorb radiant energy. A low-emissivity material, like a Low E coated window, reflects more radiant heat than it absorbs, reducing the amount of heat transfer through the window.

b. The science behind Low E coating: reflecting and absorbing heat

Low E coatings work by reflecting and absorbing heat, depending on the type of coating used. Passive Low E coatings primarily reflect heat back into the building, while solar control Low E coatings reduce the amount of solar heat entering the building. The result is improved energy efficiency, as the interior temperature is better maintained and less reliant on heating or cooling systems.

c. Comparison of Low E coated windows with non-coated windows

Compared to non-coated windows, Low E coated windows offer several benefits, including:

  • Improved energy efficiency, as they minimize heat loss and solar heat gain
  • Enhanced comfort, due to better temperature regulation
  • Reduced condensation and moisture-related issues
  • Protection from harmful UV rays, which can cause fading and damage to furnishings

5. Benefits of Low E Coating

a. Improved energy efficiency

By reducing heat loss in winter and solar heat gain in summer, Low E coatings contribute to the overall energy efficiency of a building. This results in less reliance on heating and cooling systems, which can lead to substantial energy savings.

b. Lower energy bills for homeowners

Improved energy efficiency translates to lower energy bills for homeowners. By reducing the need for heating and cooling, Low E coated windows can help save on energy costs throughout the year.

c. Enhanced comfort

By maintaining a more consistent interior temperature, Low E coated windows contribute to a more comfortable living environment. This is particularly important in regions with extreme temperature fluctuations.

d. Reduced condensation and moisture-related issues

Low E coatings can help minimize condensation on windows, which can lead to mold, mildew, and other moisture-related issues. This not only contributes to a healthier living environment but also helps protect the structural integrity of the building.

e. Protection from UV rays and fading

Low E coatings block a significant portion of harmful UV rays, which can cause fading and damage to furnishings, flooring, and artwork. This added protection helps extend the lifespan of valuable belongings.

6. Leading Manufacturers of Low E Glass Products

a. Overview of major players in the industry

There are several well-established manufacturers of Low E glass products, each with their own unique offerings and technologies.

b. Cardinal Glass Industries

Cardinal Glass Industries is a leading manufacturer of Low E glass products. With a strong focus on research and development, the company has introduced numerous innovative technologies in the field of energy-efficient glass solutions.

c. PPG (now Vitro Architectural Glass)

PPG, now part of Vitro Architectural Glass, is another major player in the Low E glass industry. With a rich history in glass manufacturing and a commitment to sustainability, PPG offers a wide range of energy-efficient glass products for various applications.

7. The Importance of Proper Installation and Maintenance of Low E Coated Windows

a. Ensuring optimal performance

To maximize the benefits and performance of Low E coated windows, proper installation and maintenance are crucial. Choosing a reputable glass fabricator with experience in handling Low E coated windows can help ensure that they are correctly installed, sealed, and aligned for optimal performance. At Silverline, we have partnered with the leading glass fabricator Vitrum for all of our sealed unit supply.

b. Caring for Low E coated windows

Low E coated windows may require special care and cleaning techniques to prevent damage to the coating. It is essential to follow the manufacturer’s guidelines for cleaning and maintenance, using only approved cleaning products and methods. Regularly inspecting your windows for signs of wear or damage can help prolong the life of the coating and maintain its performance.

8. Conclusion

Low E coatings have become increasingly popular in the world of energy-efficient windows due to their numerous benefits, including improved energy efficiency, lower energy bills, enhanced comfort, and protection from UV rays. Understanding the differences between soft coat and hard coat Low E coatings, as well as the manufacturing processes and performance characteristics, can help you make an informed decision when choosing the best solution for your home or building.

Whether you are considering sliding windows, bay or bow windows, or any other window style, incorporating Low E coatings can significantly enhance their performance and contribute to a more comfortable and energy-efficient environment. To learn more about vinyl windows, the most popular window products on the market, visit Silver Line Exteriors and explore our extensive window features and offerings.

For more information on the installation process, window replacement, or to request an estimate, contact us today. Our team of experts is here to guide you through every step of the process and help you make the best choice for your home or building.

 

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Silverline Exterior Solutions, established in 2007, specializes in energy-efficient windows, doors, and siding. With over 15 years of experience, we offer durable and eco-friendly solutions tailored for the British Columbia environment. Our mission: provide state-of-the-art products and unparalleled customer relationships.