Isla Bennett
Protruding roofing nails can be a nuisance and a safety hazard. While some people recommend simply bending the nails, this can loosen them and they may still pose a risk of injury. To completely remove the danger, the sharp points must be cut off. This can be done with a variety of tools, including end trimmers, nail pliers, a grinder with a cutoff wheel, or a reciprocating saw. However, care must be taken to avoid damaging the roof with heat or sparks, and to handle the sharp nail remnants safely.
| Characteristics | Values |
|---|---|
| Reasons for protruding roofing nails | Nails may be protruding because they were too long, or because they were driven through the skip sheathing instead of being pulled |
| Concerns about protruding roofing nails | Safety, aesthetics |
| Alternative to cutting protruding roofing nails | Covering the nails with styrofoam, radiant barrier foil, or spray foam insulation |
| Tools to cut protruding roofing nails | Dremel with a cut-off disc, tile nipper, vise grips, MultiMaster (with a metal E blade), nail nipper, Channel Lock pliers, end trimmers/nippers or "horshoe nail trimmers", angle grinder, oscillating saw, bolt cutter, hammer |
| Considerations when cutting protruding roofing nails | Heat damage to roof shingles, sharp edges of cut nails, flying debris, difficulty cutting nail heads |
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What You'll Learn
Using a thin cutoff wheel in a disc grinder
If you are looking to cut protruding roofing nails, one option is to use a thin cutoff wheel in a disc grinder. This method can be used to achieve a completely flush surface. However, it is important to be careful as a slipped wheel or an unsteady hand can damage the existing surface.
When using a thin cutoff wheel in a disc grinder, it is important to take safety precautions. Wear safety goggles to protect your eyes from any debris that may be generated during the cutting process. It is also important to be mindful of the heat generated by the grinder. While the heat is minimal and will not damage the roof shingles or their underlayment, it is a good idea to keep a close watch for any smoldering after cutting.
To use the thin cutoff wheel effectively, it is important to have the right grinder and accessories. Some grinders are specifically designed for use with thin cutoff discs, while others may require the use of a "flip me over" washer or spacer to accommodate the thin disc. It is also important to tighten the nut securely when using a thin disc to ensure it is stable during the cutting process.
When cutting protruding roofing nails with a thin cutoff wheel, it is important to get close to the nails. This may require a grinder with a long reach, such as a sawzall, to access the nails without damaging the surrounding surface. Overall, using a thin cutoff wheel in a disc grinder can be an effective method for cutting protruding roofing nails, but it requires careful execution and the proper tools to achieve a safe and successful outcome.
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Using a grinding tool with a metal cutting blade
If you want to cut protruding roofing nails using a grinding tool with a metal cutting blade, there are a few things you should know. Firstly, while this method can be effective, it tends to spray sparks everywhere, so be sure to take the necessary safety precautions. It's also worth noting that this method may not completely remove the nail head; instead, it might bend it over, leaving it still attached.
To begin, put on some ear protection and safety goggles to protect yourself from the noise and sparks. Choose a 4" or 4.5" grinder with a skinny metal cutting blade, and if you want a completely flush surface, go straight to the grinder. If you're not careful, a slipped wheel or an unsteady hand could damage the existing surface.
Hold the grinder with the blade at an angle to the nail, and cut with a slight back-and-forth motion. This will help extend the life of the blade. Be aware that this method can leave a small nub of the nail behind, so you may need to use pliers to snap it off or a nail set to sink it slightly and spackle the hole.
If you're concerned about the sparks from the grinder, you could try using a Dremel with a cut-off disc or a Multimaster with a metal E-blade. These tools may be slower, but they will still get the job done with less risk of sparks.
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Using nail pliers
Nail Pliers
Nail pliers are a specific type of plier designed for cutting nails. They typically have angled jaws that allow for easy gripping and cutting of the nails. While they can be effective, some users have reported that they can be time-consuming when dealing with a large number of nails.
End Cutting Pliers
End cutting pliers are another option for cutting protruding roofing nails. These pliers have a specific design that allows for cutting nails close to the surface. However, they may not be durable enough to cut through thicker nails.
Linesman Pliers
Linesman pliers are a versatile option that can be used for cutting nails, as well as for other tasks such as gripping and twisting. They are typically larger and stronger than standard pliers, making them suitable for cutting through thicker nails.
Bull Nose Pliers
Bull nose pliers are a type of plier with a rounded nose that can be used for cutting nails. They are often available from brands such as ChannelLock, which is known for its durable tools.
Dremel
A Dremel is a rotary tool that can be used with a metal-cutting blade to cut through nails. This method can be effective, but it may not always result in a completely flush cut. Additionally, the nail head may remain attached and need to be snapped off separately.
When using any type of plier or cutting tool, it is important to prioritise safety. Wear appropriate protective gear, such as gloves and eye protection, to minimise the risk of injury. Additionally, some nails may be more easily bent over with a hammer, reducing the risk of sharp edges.
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Using a reciprocating saw
A reciprocating saw is a powerful tool that uses a back-and-forth motion to cut through various materials. It is commonly used for demolition work, plumbing, and remodeling projects. To use a reciprocating saw to cut off protruding roofing nails, follow these steps:
First, choose the appropriate blade. Select a bi-metal blade with a lower TPI (tooth count in excess of 10 teeth per inch) specifically designed for cutting through metal. A dull blade will reduce cutting efficiency and increase the risk of accidents, so ensure you are using a sharp blade.
Next, wear protective gear. Safety goggles, gloves, and ear protection are essential when using a reciprocating saw to protect yourself from flying debris and reduce the noise level.
Now, secure the material you will be cutting. Ensure that the roofing nail and the surrounding area are securely clamped or held in place to prevent any movement or slipping during the cutting process.
Then, position the blade correctly. Align the toothed portion of the blade with the area where you want to make the cut, ensuring that the blade is perpendicular to the surface to achieve a clean and precise cut.
Hold the reciprocating saw firmly with both hands and start it on a slow speed. Apply steady and even pressure to the saw, allowing the teeth to make contact with the nail. Let the saw do the work, and do not force it through the nail. Move the saw back and forth in a controlled manner until the nail is cut.
It is important to note that cutting through nails can generate heat and dull the blade quickly. Therefore, periodically inspect the blade for any signs of wear and replace it if necessary. Additionally, keep a close watch for any smoldering after cutting through the nails.
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Hammering them down
Hammering protruding roofing nails is a viable option, but it is not recommended in all cases. Frost forming on the metal nails can worsen your roof system, and hammered-down nails in an attic can be a safety hazard. Inspectors also tend to prefer nails to be pulled out.
However, if you do opt to hammer down the nails, there are a few techniques to employ. Firstly, turning your hammer on its side can provide a couple of extra inches of clearance. Use the flat part of the hammerhead that is directly in line with the handle—the part between the head and claw—to strike the nail. Alternatively, a pneumatic palm nailer is useful for tight spaces.
Additionally, applying a small amount of tar underneath the shingles can help hold them in place. This can be particularly useful for the last row of shingles.
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Frequently asked questions
You can use a variety of tools to cut protruding roofing nails, including a dremel, bolt cutter, tile nipper, vise grips, multi-master, oscillating saw, nail nipper, pliers, grinder, or hammer.
Yes, you can cover the nails with styrofoam or adhesive foam, or bend them over with a hammer.
Cutting nails can leave sharp edges, and if you use a grinder or reciprocating tool, they will be hot enough to burn wood and may fly off in all directions.
