Alexei Volkov
Plastic roof closure strips are used to provide a finished look and additional support to the roof. They are ideal for purlin and cross brace roofs and are compatible with SUNTUF corrugated roof panels. The main purpose of foam closures is to prevent airflow, create an airtight seal, and keep bugs and rodents out. They are also used to stabilize the surface and maximize the life of the panels. However, some people may choose to leave them off due to their ugly appearance or the extra cost of installation. The necessity of closure strips depends on the specific installation and whether the structure is open air or not.
Are closure strips necessary for plastic roofing?
| Characteristics | Values |
|---|---|
| Purpose | Close gaps in wall and roof assemblies |
| Use case | Prevent airflow, allow airflow but stop insects from getting in, provide a finished look and additional support |
| Installation | Use at every purlin but screw the lows unless in a high wind area |
| Cost | 75 cents each |
| Pros | Help panels keep their shape, provide an airtight seal, prevent rattling in the wind, keep bugs and rodents out, extend the life of the roof |
| Cons | Ugly, falls out of position when adjusting panels, prone to splitting, unnecessary expense |
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What You'll Learn
Closure strips can prevent insects and rodents from entering
Plastic roof closure strips are specialised components designed to seal the gaps between panels and prevent pests, such as insects and rodents, from entering the interior of the structure. They are typically made from durable materials such as foam or rubber and are custom-shaped to fit the profile of the roofing panels. The strips are usually about an inch thick and 1-2 inches wide.
The foam closures fill the gaps in the roof, preventing insects and rodents from entering and causing damage. They also act as an insulator, helping to reduce noise from wind or rain. Additionally, they can provide a finished look and additional support to the roof.
Some installations may suggest screwing through the valleys of the panels, which is much easier, but the only reason to use closure strips is if a seal is required. For example, if you are using a product like Suntuf, which has UV protection on one side, using closure strips can prevent installing the panels upside down, which would reduce their lifespan.
Closure strips are an inexpensive requirement for roofing installations, costing around $0.50 per linear foot. They are also easy and cheap to ship and can be installed by homeowners with basic DIY skills, although professional installation may be recommended for complex roofing systems.
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They can help keep the panels' shape and prevent rattling in the wind
When building a covered outdoor area with polycarbonate panels, you may wonder if you need closure strips. These strips can help keep the panels in shape and prevent rattling in the wind.
Closure strips are not always necessary, but they can be beneficial in certain situations. If you live in an area with high winds, using closure strips can help keep the panels secure and prevent them from rattling. The strips provide additional support to the panels, helping them to withstand strong winds without making noise.
Additionally, closure strips can help to create a snug fit for the panels, ensuring that they keep their shape over time. This is especially important if you are using corrugated roof panels, as the strips can fill in the gaps between the corrugations, providing a smooth and stable surface. The foam strips, in particular, are excellent for creating an airtight seal, which can also help to reduce noise from rain or hail.
However, some people may find the foam strips challenging to work with, as they can be tricky to position and may fall out of place. In these cases, using the wood strip version or plastic closure strips may be a better option, despite their tendency to split. Ultimately, the decision to use closure strips depends on the specific requirements of your project. If you are concerned about wind noise or the stability of your panels, then using closure strips can be a worthwhile investment.
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They can reduce noise from rain
If you're wondering whether to use closure strips for your plastic roofing, one of the benefits is that they can indeed reduce noise from rain. While one person commented that the rain noise with a covered porch without strips seemed "pretty minor", another said that tin corrugated roofs can be "quite loud". Closure strips can help to keep the panels in shape with a snug fit, preventing rattling in the wind.
The type of closure strips you use can also make a difference. Foam strips are best for an airtight seal, but they can be tricky to work with as they may fall out of position when adjusting panels. Plastic closure strips are another option, but they can be more expensive and may not provide as much ventilation.
Ultimately, the decision to use closure strips may depend on the specific requirements of your project. If you're looking for a way to reduce rain noise, then closure strips could be a good option, but they may not be necessary if you're primarily concerned with ventilation in a hot, humid climate. It's always a good idea to refer to the manufacturer's instructions and consider the specific conditions and requirements of your project before making a decision.
In addition to reducing rain noise, closure strips can also provide a finished look and additional support for your roofing. They can help stabilize the surface and maximize the life of the panels, especially in high-wind areas. However, they may not be necessary for all installations, and there are alternative methods for securing panels, such as screwing through the valleys or flats of the panels.
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They can provide a finished look and additional support
When building a structure with a plastic roof, such as a patio or a chicken coop, it is important to consider the benefits of using closure strips. While some people may consider them unnecessary, closure strips can provide a finished look and additional support for your structure.
Firstly, closure strips can enhance the appearance of your plastic roof by providing a finished look. They are designed to be compatible with specific corrugated roof panels, such as the Suntuf panels, ensuring a seamless and professional installation. By using closure strips, you can achieve a neat and polished appearance for your structure.
Secondly, closure strips offer additional support and stability to the roof panels. They help to close gaps in wall and roof assemblies, contributing to a more robust and durable structure. This is especially important if you are building in an area prone to high winds or extreme weather conditions. The strips can also help to extend the life of the panels by distributing stress more evenly, preventing the panels from cracking or failing due to expansion and contraction caused by temperature changes.
Additionally, closure strips can serve multiple purposes depending on your specific needs. Some strips are designed to be airtight, providing better insulation and energy efficiency for your structure. Others are meant to allow airflow while still preventing insects, rodents, and small animals from entering the enclosed space. This feature can be particularly useful if you are building a chicken coop or a similar structure that requires ventilation without compromising pest control.
It is worth noting that the use of closure strips may depend on the specific installation and the level of protection required. In some cases, screwing the panels directly into the purlins may be sufficient, especially if you are considering cost and time constraints. However, if you are seeking a long-lasting and secure structure, investing in closure strips can provide added benefits in terms of both aesthetics and functionality.
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They can help stabilise the surface and extend the life of the panels
When it comes to plastic roofing, the use of closure strips can indeed offer several benefits, one of the most significant being their ability to stabilise the surface and extend the life of the panels.
Closure strips, also known as foam closures or wiggle boards, are often recommended for use with plastic roofing panels, such as those made of polycarbonate or corrugated plastic. These strips are designed to be placed between the purlins and the roofing panels, providing additional support and stability to the overall structure.
One of the key advantages of closure strips is their ability to stabilise the surface of the roof. Plastic roofing panels, especially those made of polycarbonate, can expand and contract with changes in temperature. Closure strips help distribute the stress caused by this movement, preventing it from being concentrated around the screw holes. By stabilising the surface, closure strips can prevent buckling or cracking of the panels, ensuring a longer lifespan for the roof.
Additionally, closure strips can enhance the structural integrity of the roof. They provide a snug fit for the panels, preventing rattling or vibration in windy conditions. This not only reduces noise but also minimises the risk of panels becoming loose or dislodged over time. The airtight seal created by foam closure strips can also help to keep out bugs and rodents, which may be important depending on the application and location of the structure.
While some consider the foam strips to be visually unappealing and challenging to work with, they can be crucial in maximising the lifespan of plastic roofing panels. The strips enable screws to be fastened securely in the ridges rather than the valleys of the panels, reducing the amount of water the screws are exposed to and minimising the risk of leaks. Therefore, while closure strips may not be strictly necessary for a functional plastic roof, they can undoubtedly enhance its stability and longevity.
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Frequently asked questions
Closure strips are foam or plastic strips that are used to close gaps in wall and roof assemblies. They can be used to create an airtight seal or to allow airflow while preventing insects from entering.
The use of closure strips depends on the installation and the specific requirements of the structure. If you are installing plastic roofing in an open-air structure where airflow and insect control are not concerns, then closure strips may not be necessary. However, if you want to maximize the life of the panels and ensure a snug fit that can withstand wind and weather, then closure strips are recommended.
Closure strips can provide additional support to the roofing structure, help to stabilize the panels, and extend the life of the roof. They can also improve the aesthetics of the roof by providing a finished look. Additionally, closure strips can help to keep bugs and rodents out of the structure.
Some people choose to screw the panels directly into the purlins without using closure strips. However, this can put stress on the screws and holes, potentially leading to failure. Another alternative is to use a "5v" panel design and screw through the flats, although this may not be suitable for all types of panels.
