14 Companies Doing An Excellent Job At Secondary Glazing Acrylic Options

· 5 min read
14 Companies Doing An Excellent Job At Secondary Glazing Acrylic Options

Enhancing Home Comfort: A Comprehensive Guide to Secondary Glazing Acrylic Options

Windows are frequently the most substantial source of heat loss and noise infiltration in homes. While replacing initial windows with double glazing is a common solution, it is not constantly practical-- specifically in heritage structures or for property owners on a stringent budget. As an option, secondary glazing has become an increasingly popular service. Among the different materials offered, acrylic sheets have actually emerged as a frontrunner.

This post checks out the various acrylic choices for secondary glazing, comparing them to conventional glass and outlining the benefits, installation techniques, and upkeep needed to maintain a more energy-efficient and quieter home.


Understanding Secondary Glazing

Secondary glazing involves the setup of a discrete, supplementary internal window to an existing single-glazed window. Unlike complete replacement, it leaves the external structure of your house unblemished. This makes it a favored option for "Listed Buildings" or homes in sanctuary where preparation permission for brand-new uPVC or double-glazed windows is typically denied.

Secondary glazing works by producing a pocket of still air between the original window and the secondary pane. This "buffer zone" serves as an effective insulator, decreasing thermal transfer and dampening external noise.

Why Choose Acrylic Over Glass?

When choosing materials for secondary glazing, the 2 main options are glass and plastic (acrylic or polycarbonate). While glass is conventional, acrylic offers numerous advantages that make it particularly appropriate for DIY tasks and older frames.

Table 1: Acrylic vs. Traditional Glass for Secondary Glazing

FunctionAcrylic (Perspex/Plexiglass)Standard Glass
Weight50% lighter than glassHeavy; needs strong frames
Effect Resistance10-- 15 times stronger than glassVulnerable and prone to shattering
Thermal InsulationExceptional (Lower thermal conductivity)Moderate
Clearness92% Light transmission (Clearer than glass)Varies (Can have a green tint)
Ease of InstallationReally high (DIY friendly)Professional installation typically needed
UV ResistanceHigh (with UV-stabilized grades)Naturally high
CostUsually more affordableGreater product and labor expenses

Kinds Of Acrylic Sheets for Secondary Glazing

Not all acrylic is produced equal. To accomplish the very best outcomes, house owners must comprehend the variations available on the marketplace.

1. Extruded Acrylic

Extruded acrylic is the most cost-effective alternative. It is manufactured by pushing the acrylic mass through a die. While it is excellent for basic secondary glazing, it has somewhat greater tolerances in thickness and is a bit more vulnerable to chemical tension than cast acrylic.

2. Cast Acrylic

Cast acrylic is produced by putting the liquid ingredients into a mold. This results in a much more difficult, more steady product with remarkable optical clarity. For big windows where visual distortion should be minimized, cast acrylic is the premium choice.

3. UV-Stabilized Acrylic

Basic acrylic is naturally resistant to yellowing, but UV-stabilized choices are specifically crafted for windows that deal with direct, extreme sunlight. These sheets ensure that the material stays crystal clear for decades without devenir brittle.

4. Abrasion-Resistant Acrylic

One of the main drawbacks of acrylic is its susceptibility to scratches.  learn more -resistant (or "hard-coated") acrylic features a thin, ceramic-like coating that safeguards the surface from scuffs and cleaning-related scratches, making it perfect for high-traffic areas.


Key Benefits of Acrylic Secondary Glazing

Thermal Performance and Energy Savings

The primary inspiration for secondary glazing is heat retention. Acrylic has lower thermal conductivity than glass, suggesting it is naturally much better at preventing heat from escaping. By setting up a 3mm or 4mm acrylic sheet, a family can considerably decrease its U-value (the rate of heat loss), causing lower energy expenses and a smaller carbon footprint.

Acoustic Insulation (Noise Reduction)

Acrylic is highly effective at reducing high-frequency sounds, such as traffic or community chatter. Because acrylic is less rigid than glass, it does not vibrate at the same frequencies, assisting to separate acoustic waves before they get in the space. For optimum sound decrease, an air space of 100mm to 200mm between the primary window and the acrylic pane is suggested.

Health and Condensation Control

Condensation occurs when warm, moist air hits a cold window surface area. By supplying an internal barrier, acrylic secondary glazing keeps the inner surface area of the "window" warmer, which substantially minimizes the possibility of condensation. This, in turn, avoids the growth of black mold, which can have damaging impacts on breathing health.


Installation Methods for Acrylic Secondary Glazing

One of the factors homeowners choose acrylic is the variety of non-permanent installation options available.

Table 2: Common Installation Methods

MethodBest ForDescription
Magnetic StripsEase of removalUtilizing self-adhesive magnetic tape on the window frame and the acrylic sheet. This enables for fast removal in summer.
Clip & & Screw SystemLong-term stabilityPlastic clips or turn-buttons hold the sheet against a foam seal. More protected for bigger, heavier panes.
U-Channel EdgingLooksA plastic or aluminum channel is mounted to the frame, and the acrylic sheet slides or clips into it.
Adhesive VelcroBudget plan DIYLow-cost service using hook-and-loop fasteners. Less airtight than magnetic or clip systems.

Step-by-Step Selection Guide

To ensure the best outcomes, one must follow these steps when selecting their acrylic secondary glazing:

  1. Measure Accurately: Measure the height and width of the window recess. It is usually recommended to deduct 3mm from each side to permit for thermal expansion.
  2. Figure out Thickness:
  • 3mm: Standard for small to medium windows.
  • 4mm-5mm: Better for large windows to avoid "bowing."
  1. Pick the Finish: While "Clear" is basic, "Frosted" acrylic can be used for restroom secondary glazing to supply personal privacy without sacrificing light.
  2. Select the Fixing System: Ensure the chosen fixing approach can support the weight of the sheet size.

Upkeep and Care for Acrylic Sheets

To maintain the durability and clearness of acrylic secondary glazing, particular cleansing protocols should be followed.

  • Avoid Harsh Chemicals: Never utilize glass cleaners including ammonia or alcohol (like Windex), as these can "craze" or cloud the acrylic.
  • Usage Soft Cloths: Microfiber or soft cotton cloths are vital. Prevent paper towels, which can be abrasive.
  • Mild Soaps: A basic solution of lukewarm water and a drop of moderate dish soap is typically sufficient.
  • Anti-Static Treatments: Using an anti-static cleaner can assist prevent the acrylic from attracting dust, which is common with plastic surface areas.

Often Asked Questions (FAQ)

1. Does acrylic secondary glazing stop condensation?

Yes. By creating a thermal barrier, the internal secondary pane remains closer to space temperature, preventing the warm air in the space from condensing on the cold main glass.

2. Can I still open my windows?

If utilizing magnetic or clip-on systems, the acrylic sheet can be quickly eliminated or set aside to enable the main window to be opened. For sash windows, sliding secondary glazing systems are offered, though these usually include a frame.

3. Is acrylic much better than polycarbonate?

Acrylic is more UV-resistant and uses better clearness (it does not have the slight yellow/grey tint often found in polycarbonate). However, polycarbonate is virtually solid, making it much better for high-security applications or locations susceptible to heavy effects.

4. How long does acrylic secondary glazing last?

Premium UV-stabilized acrylic can last 10 to 20 years without considerable yellowing or deterioration, provided it is cleaned up correctly.

5. Will it look apparent from the outside?

Among the main benefits of secondary glazing is its low visual impact. Due to the fact that the acrylic is clear and installed within, it is hardly ever noticeable from the outside of the home.


Acrylic secondary glazing represents a versatile, economical, and highly effective method to update home insulation. Whether the objective is to decrease heating costs, moisten the sound of a busy street, or protect a historic residential or commercial property from the aspects, acrylic deals a lightweight and DIY-friendly alternative to conventional glass. By selecting the right grade of material and a suitable installation method, homeowners can enjoy a warmer, quieter, and more comfy living environment without the expenditure of total window replacement.