Which Outdoor Blinds Fabric Is Best for Your Balcony? 5 Ziptrak® Options Compared

Choosing outdoor blinds for your balcony involves more than deciding between manual and motorised operation. The fabric you select can make a significant difference to how much sunlight enters your home, how well your balcony is protected from rain, and whether you can still enjoy the outdoor view.

In Singapore, homeowners searching for balcony blinds, zip blinds or zip track blinds are often looking for a way to make their outdoor spaces more comfortable and usable throughout the year. However, not all outdoor blind fabrics provide the same level of protection, privacy or ventilation.

At The Curtain Boutique, we offer genuine Ziptrak® outdoor blinds with different fabric options to suit these needs. From everyday 1% and 5% openness fabrics to specialised materials such as ClearView™ PVC, RainOut® Acoustic and RainOut® Blackout, understanding their differences can help you choose a suitable solution for your home.

At a Glance

• For everyday balcony protection: 1% openness fabric offers a practical balance of shade, daytime privacy, rain protection and reduced air exchange.
• For outdoor views and ventilation: 5% openness fabric allows more airflow and natural light, while ClearView™ PVC provides transparent weather protection.
• For specific concerns: RainOut® Acoustic helps reduce external noise, while RainOut® Blackout provides stronger light control and privacy.

Why Does Fabric Matter When Choosing Outdoor Balcony Blinds?

Outdoor blinds are designed to make balconies, patios and other exposed spaces more comfortable by providing protection against sunlight, wind and rain. However, their effectiveness depends on both the blind system and the material used.

Unlike conventional outdoor roller blinds with freely hanging fabric edges, genuine Ziptrak® uses a patented track-guided system that keeps the fabric securely guided within its side tracks. This helps minimise side gaps and excessive fabric movement, particularly in windy conditions.

The fabric then determines how much light, air and moisture can pass through the blind. For example, a woven fabric with small openings can provide shade while allowing some ventilation, whereas a non-porous material creates a more substantial barrier against wind and rain. This is why two balconies fitted with the same Ziptrak® system can offer very different levels of comfort depending on the fabric selected.

What Does 1% or 5% Openness Actually Mean?

When comparing outdoor blinds in Singapore, you will often come across terms such as 1% and 5% openness. But what do these percentages actually represent?

The openness factor refers to the proportion of small openings within a woven fabric. In simple terms, a 1% openness fabric has a tighter weave with fewer openings, while a 5% openness fabric has a more open weave that allows greater amounts of light and air to pass through. However, this does not mean that 1% fabric blocks exactly 99% of sunlight, heat or rain. These properties also depend on the fabric’s material, colour, coating and other characteristics. A lower openness factor generally provides greater screening and resistance to wind-driven rain, while a higher openness factor allows better ventilation and outward visibility.

For homeowners, the choice comes down to how much protection you want without compromising the natural light, airflow and views you enjoy from your balcony.

1. Ziptrak® 1% Openness Fabric: An All-Round Choice for Condo Balcony Blinds

For many condominium balconies in Singapore, 1% openness fabric is a practical starting point. Its tightly woven construction helps reduce harsh sunlight and glare while providing a useful degree of daytime privacy.

The smaller openings also offer better resistance to wind-driven rain compared with 5% openness fabric. Although it is not completely waterproof, 1% fabric can provide substantial protection against rain entering the balcony, making it a popular choice for homeowners who want to use their outdoor spaces more comfortably during changing weather conditions.

However, heavy or wind-driven rain may still cause water to pass through the fabric or enter through other parts of the system. The level of protection also depends on the balcony’s exposure, floor inclination and installation conditions. Another benefit of 1% openness fabric is its ability to help reduce the exchange of cooled indoor air with warmer outdoor air.

Can 1% Outdoor Blinds Help Keep Air-Conditioning In?

In Singapore’s hot and humid climate, many homeowners use their balconies as an extension of their living rooms, particularly when they want additional space for dining, relaxing or entertaining.

When the balcony sliding doors are open and the air-conditioning is running, 1% openness fabric can help retain more cooled air compared with a more open 5% fabric. This can make the extended living space more comfortable, especially when the blinds are fully lowered. However, Ziptrak® is not an airtight enclosure, and cooled air can still escape through the fabric openings and gaps around the installation. The actual cooling effect depends on the balcony layout, air-conditioning capacity and surrounding conditions.

For condominium homeowners whose MCST only permits a choice between 1% and 5% openness fabrics, this is another reason to consider 1%, particularly if the balcony is frequently used together with the living room.

2. Ziptrak® 5% Openness Fabric: Better Ventilation and Clearer Views

Not every balcony needs the same degree of weather protection. Some homes are naturally sheltered by neighbouring blocks, recessed balcony layouts or surrounding building structures, which can reduce direct exposure to wind and rain. For homeowners in these situations, 5% openness fabric may be a more suitable choice.

Its more open weave allows greater amounts of natural light and air to pass through, helping the balcony feel less enclosed even when the blinds are fully lowered. It also generally provides clearer outward visibility, making it appealing for homes overlooking greenery, swimming pools or open scenery.

Ventilation can be particularly important for homeowners who enjoy spending time on their balconies without air-conditioning. Instead of raising the blinds completely, they can keep them lowered for some shade and screening while still allowing air to circulate through the fabric. The trade-off is reduced privacy and weather protection compared with 1% openness fabric. During heavy or wind-driven rain, more droplets may pass through the openings. However, if the balcony’s surrounding structures already provide some shelter, this may be an acceptable compromise in exchange for better airflow and visibility.

For genuine Ziptrak® outdoor blinds, PolyWeave is available in both 1% and 5% openness, while FiberWeave is currently offered in 1%. The latter provides additional resistance to fabric elongation over time, making material construction another consideration beyond openness alone.

3. ClearView™ PVC: Transparent Outdoor Blinds for Rain Protection

For homeowners who want to enjoy their outdoor surroundings while keeping out wind and rain, ClearView™ offers a different approach from conventional woven fabrics.

ClearView™ uses transparent marine-grade PVC, creating a clear, non-porous barrier that prevents rain and air from passing directly through the material. This makes it particularly suitable for covered patios, outdoor dining areas and spaces where maintaining visibility is a priority.

Its marine-grade construction is intended for outdoor use, where exposure to sunlight, humidity and changing weather conditions is expected. This makes it a more suitable choice for outdoor applications than ordinary clear plastic materials.

Like other transparent flexible PVC products, however, its appearance may gradually change with prolonged exposure to sunlight and environmental conditions. Some discolouration or changes in clarity can occur as the material ages, making proper cleaning and maintenance important for preserving its appearance.

ClearView™ also behaves differently from fixed glass. As a flexible material, it may display natural ripples, reflections or temporary distortions depending on the blind’s size and operating position. Because the material has no perforations, it does not allow ventilation through the fabric. This is worth considering if your balcony receives strong direct sunlight or if you prefer natural airflow.

The suitability of ClearView™ also depends on the installation dimensions and operating configuration. Our Design Consultants can advise whether it is appropriate for your space.

4. RainOut® Acoustic: Outdoor Blinds That Help Reduce Noise and Rain

If your balcony faces a busy road, MRT tracks or another source of outdoor noise, RainOut® Acoustic offers benefits beyond conventional weather protection. This specialised fabric is made from treated FiberWeave 1%, designed to repel rain while allowing natural light to pass through. Its construction also helps reduce external noise and provides greater screening from neighbouring surroundings.

Unlike transparent PVC, RainOut® Acoustic offers a filtered view rather than a clear, glass-like outlook. Its light-filtering characteristics allow daylight to enter while softening glare, making it suitable for homeowners who want a brighter space without the same level of openness as conventional 5% fabric.

One of its defining features is acoustic performance. In independent testing by TÜV SÜD PSB, a genuine Ziptrak® assembly fitted with RainOut® Acoustic achieved a Sound Transmission Class (STC) rating of 12, with a measured ambient noise reduction of approximately 11.9 dB under the test conditions. These results demonstrate its potential to reduce external noise, although actual performance depends on the surrounding structure, noise source, installation and site conditions. It should not be considered a completely soundproof solution.

RainOut® Acoustic is particularly worth considering for homeowners who want stronger rain protection, reduced external noise and natural daylight without choosing a fully opaque fabric.

5. RainOut® Blackout: Outdoor Blackout Blinds for Sunlight and Privacy

For balconies where reducing incoming sunlight is the main priority, RainOut® Blackout provides a more specialised solution. Unlike woven openness fabrics, RainOut® Blackout is designed to prevent light from passing through the fabric itself. Its opaque construction provides greater privacy, particularly for balconies facing neighbouring buildings or spaces used after dark.

As part of the RainOut® range, the material also provides strong protection against rain penetration. Its non-porous construction helps limit air movement through the fabric, making it worth considering for homeowners who want a more enclosed environment.

However, it is important to distinguish between blackout fabric and a completely lightproof installation. Although the fabric blocks light transmission, some light may still enter through surrounding gaps, including areas beneath the bottom bar’s weather strip. Similarly, rainwater may enter at floor level if the balcony’s surface is uneven or slopes towards a side.

Depending on the installation, additional accessories such as an L-bar rain guard may help reduce light gaps and redirect surface water towards the balcony drain. However, their suitability depends on the floor conditions, drainage arrangement and household needs. We recommend discussing these requirements with our Design Consultants, who can assess whether additional accessories are appropriate for your balcony.

How Does Outdoor Blind Fabric Colour Affect Heat, Light and Visibility?

Beyond fabric type and openness, colour can also influence how bright your balcony feels and how clearly you can see outside. Lighter colours, such as white and light grey, tend to reflect and diffuse more visible light, creating a brighter appearance. Darker shades, such as black and charcoal, may absorb more light and create a more subdued atmosphere.

Interestingly, darker woven fabrics can sometimes provide clearer outward visibility because they produce less reflected glare on the fabric surface. This is why a dark-coloured 1% fabric may offer a surprisingly clear view despite its tighter weave.

Colour also affects the perception of privacy. A light-coloured fabric may appear more opaque from certain angles during the day, while a darker fabric can make silhouettes more noticeable under some lighting conditions.

However, the relationship between colour, light transmission and heat control is not always straightforward. Actual performance depends on the fabric’s material, weave and coating, not simply whether it is light or dark. For this reason, we recommend comparing physical samples under similar lighting conditions. Viewing fabrics against an outdoor background can help you understand how different colours may look when installed.

Comparing the Best Outdoor Blind Fabrics for Rain, Privacy and Ventilation

The table below summarises the main differences between the five Ziptrak® fabric options for Singapore balconies.