Maya Ellison
Plastic cap nails are used for holding down roofing underlayment. They are also useful for insulation boards. These nails are driven by hand and are made from high-strength steel for durability and strength. They are available in various sizes, such as 3/4 x 12-gauge and 1 x 12-gauge, and can be purchased in packs of 2000 or 3000. When installing plastic cap nails, it is important to follow the instructions on the packaging to ensure proper installation and to avoid any potential disadvantages or violations.
| Characteristics | Values |
|---|---|
| Installation | Plastic cap nails can be hand-driven into roofing underlayment to hold it in place. They are also used for insulation board. |
| Advantages | Plastic cap nails are useful in windy areas to prevent the underlayment from coming loose. They can also help prevent water intrusion. |
| Disadvantages | Plastic cap nails cannot be used with a nail gun, which is a faster method of installation. They may also prevent shingles from sealing together properly. |
| Sizes | Plastic cap nails come in various sizes, including 3/4", 7/8", 1", 1-1/4", 1-1/2", 2", and 2-1/2". |
| Packaging | They are typically sold in packs of 100, 2,000, or 3,000. |
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What You'll Learn
Plastic cap nails are useful for insulation board
Plastic cap nails are a useful tool for insulation boards, providing an effective fastening solution. They are designed to be hand-driven, making them ideal for exterior roofing applications. The plastic cap and nail combination offer a robust and durable solution, with the added benefit of corrosion resistance. This is especially important when considering the long-term performance of the insulation board installation.
The process of installing plastic cap nails is straightforward. Firstly, it's important to note that these nails are typically hand-driven and cannot be used with a nail gun, which is a faster installation method. The nails are designed to be hammered into place, securing the insulation board firmly. The plastic cap plays a crucial role in this process, as it provides a larger surface area for the hammer's impact, reducing the risk of damage to the board itself.
One of the key advantages of plastic cap nails is their ability to enhance the overall durability of the insulation board installation. The plastic cap, combined with the high-strength steel nail, creates a robust fastening system. This added strength helps to ensure that the insulation board remains securely in place, even under varying environmental conditions such as temperature fluctuations and moisture exposure.
Additionally, plastic cap nails offer a degree of flexibility in terms of aesthetics. The plastic caps can be colour-coordinated to match the insulation board or the surrounding structure, providing a seamless and visually appealing finish. This is particularly advantageous when the insulation board is installed in visible areas, such as exterior walls or exposed roofing.
It is important to consider the limitations of plastic cap nails as well. One disadvantage is the additional cost associated with purchasing these specialised nails. Furthermore, the smaller nail size compared to traditional roofing nails may be a concern, as it could potentially affect the holding power of the fastener, especially if the caps become dislodged due to expansion and contraction over time. However, when used appropriately and in accordance with manufacturer instructions, plastic cap nails can provide a secure and long-lasting solution for insulation board installations.
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They are ideal for holding down roofing underlayment
Plastic cap nails are ideal for holding down roofing underlayment. They are designed to offer reliable fastening for materials such as house wrap, sheathing, roofing felt, tar paper, foam board insulation, tarps, and roll roofing. The plastic cap provides protection and increases the surface area under the nail head, allowing for a more secure hold. This is particularly useful for large roofs with some wind expected, as the wider footprint of the plastic caps ensures the underlayment sits tight and prevents rips and tears.
Additionally, the ring shank design of plastic cap nails offers superior gripping power, doubling the withdrawal strength of smooth-shank nails. This locking mechanism provides a secure hold against harsh weather and moisture. The nails are crafted from strong 12-gauge steel and are corrosion-resistant, making them suitable for outdoor roofing projects.
One of the benefits of using plastic cap nails for roofing underlayment is their ability to divert water away from the holes made by nails or staples. This helps to prevent leaks and keeps the underlayment dry. Plastic cap nails are also easy to install and can be hand-driven with a hammer, making them a convenient choice for roofing projects.
However, it is important to note that plastic caps should not be used if there is a chance the customer could have a standing seam roof installed, as they can telegraph through standing seam roofs. Nevertheless, for asphalt shingles and other common roofing materials, plastic cap nails provide a strong and durable solution for holding down roofing underlayment.
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They are not suitable for a gun nailer
Plastic cap nails are not suitable for a gun nailer for several reasons. Firstly, they are much smaller in size than roofing nails, which are typically used with a nail gun. This means that if the plastic cap comes off due to expansion or contraction, the remaining nail head may not be strong enough to hold a shingle in place.
Additionally, the plastic cap may not seal properly on the granular surface of a shingle, allowing water to run under the cap and directly to the nail head, potentially causing leaks. This can be a significant issue, especially in areas with heavy winds and inclement weather.
Another disadvantage of using plastic cap nails with a gun nailer is the additional cost. Plastic cap nails are more expensive than standard nails, and the inability to use a gun nailer, which is faster and more efficient, can slow down the installation process.
Furthermore, some manufacturers require the use of capped fasteners with their wrap or felt products due to the increased strength and protection they provide. However, this also means that using plastic cap nails with a gun nailer may not be compatible with certain products or may void warranties, depending on the specific requirements of the manufacturer.
Overall, while plastic cap nails offer certain benefits, such as increased protection against leaks and tears, they are not suitable for use with a gun nailer due to size incompatibility, potential sealing issues, higher costs, and possible restrictions by manufacturers.
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They are good for exterior roofing applications
Installing plastic cap nails is a straightforward process, but it is important to follow the instructions on the packet and be aware of any local building codes. They are ideal for exterior roofing applications due to their ability to secure and protect roofing materials.
Plastic cap nails are excellent for exterior roofing as they provide superior holding power and additional strength, especially when compared to standard nails or staples. This is because the plastic cap increases the surface area under the nail head, allowing for a more secure hold. This feature also helps to prevent tearing, which can be an issue with standard nails, and ensures that the roofing materials do not rip or come loose in high winds or adverse weather conditions.
The use of plastic cap nails can also help to divert water, preventing leaks. This is particularly beneficial for exterior roofing, as it provides added protection from the elements and helps to keep the building insulated and dry.
In addition, plastic cap nails are versatile and can be used with a variety of roofing materials, including asphalt shingles, felt, and insulation board. They are also suitable for both new construction and repairs, making them a good choice for a range of exterior roofing applications.
However, it is worth noting that some sources suggest that plastic cap nails may not be suitable for all types of roofing. For example, they may not seal properly on the granular surface of a shingle, and there are concerns that they could prevent shingles from sealing together correctly. As such, it is important to consider the specific application and follow any relevant guidelines or instructions.
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They are not suitable for use with shingles
Plastic cap nails are not suitable for use with shingles. This is because the plastic cap will not seal on the granular surface of a shingle. This means that any water in the area would likely run under the cap and directly to the nail head, where it may leak. If the caps come off due to expansion and contraction, the remaining nail head is too small to hold a shingle effectively.
Plastic cap nails are also much smaller than roofing nails, which are typically used for shingles. Roofing nails are designed to penetrate the shingle and then the plywood or OSB decking beneath by at least 3/4 of an inch. Plastic cap nails are not long enough to do this.
Square cap nails are typically used for fastening felt underlayment and not asphalt shingles. This is because asphalt shingles require nails with superior withdrawal resistance, especially in high-wind areas. Ring shank nails, for example, have connected rings around the shaft, giving them superior withdrawal resistance.
Additionally, plastic cap nails may not be suitable for use with shingles due to code and warranty violations. In some areas, using plastic cap nails for shingles may be against local codes and could result in installation and warranty issues.
Overall, while plastic cap nails can be used for various applications, they are not the best choice for shingles due to sealing, size, code, and functionality issues.
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Frequently asked questions
Plastic cap nails are used for holding down roofing underlayment. They can also be used for insulation board.
Plastic cap nails excel at holding down roofing underlayment, whether it be old school tar paper or newer, more durable, high-tech roof underlayments. They also add strength to the hold on the underlayment in case the top layer comes off, which is critical to the IBHS Roof standard.
Plastic cap nails cannot be used with a nail gun, which is a faster method of installation. They are also more expensive than regular nails.
Plastic cap nails are not recommended for shingling as the plastic cap will not seal on the granular surface of a shingle. Any water in the area would likely run under the cap and directly to the nail head, where it may leak.
