Category Archives: metal roof fasteners

Two piece vs. One-piece metal roof clips

Metal roofs are always moving. Even though it’s difficult to notice with your eyes alone – standing seam metal roofs move when the temperature changes. Even small wind gusts can cause a panel to expand or contract.

While the panel absorbs the movement by its ability to flex upward – metal roof clips work to help create a monolithic roof system that ’floats’ while making sure what’s underneath remains impervious to the elements. Today, we’re going to talk about some of those clips, how they work and how they keep your roof working in tip-top shape. Let’s jump right in!


Early versions of metal roofs were NOT designed to deal with expansion and contraction. As a result, the movement of the panels would ‘slot’ the fastener holes and cause roof leaks. Today’s versions have addressed that issue by using concealed panel clips that are designed to accommodate the movement.

That being said – there’s more to these clips than meets the eye as they all have specific needs depending on the demands placed on the roofing system, itself. Simply put – not all metal roof clips are created equal.

Two piece clips

Two piece clips are used for double-lock standing-seam roof systems. They have an upper piece that fastens tightly to the panel with a lower piece that’s fastened to the substrate. There’s a joint that connects the two pieces.

What this design allows for is panel movement and to prevent that movement from wearing out the seam sealant. Now – and this is important – while slider clips do accommodate some movement – that range of movement is limited. To get the most range out of these clips, the contractor has to apply them at a point where ambient temperature is present. A small miscalculation can impede or restrict panel movement.

The other concern with a two-piece system is the binding itself – which can cause a panel to rupture. This happens when the upper section swings out of place and can’t slide along the slip joint. This issue is most common in curved roofs.

While two piece clips are useful – their range in ability is limited depending on what your project is.

One-piece clips

One piece clips are significantly stronger and usually provide greater flexibility for panels. They also don’t require precise placement for each clip – nor do you have to depend on ambient temperature during installation.

Simply put – it’s easier, faster to install and more reliable. One-piece clips also have some other advantages like being able to prevent a panel from coming into contact with hot-melt sealant and allowing for better management of more extreme temperatures. That’s to say – one-piece clips can manage severe weather swings and the subsequent movement of your panels far better.


Together – with a well-designed system and one piece clips – you can make sure that your roofing system is practically weather-proof. Good luck!

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Getting to know your metal roof clips: Expansion and Contraction Clips

Metal roof clips are some of the most important components of your roofing system – but they’re also one of the most overlooked. Choosing the right kind of metal roof clip is essential towards ensuring that you get the most out of metal roof.

In the next few months, we’re going to be discussing the different kinds of metal roof clips on the market – what they do and why they’re useful. This month, we’ll be starting off with expansion and contraction clips. Let’s jump right in!

What is it?

Expansion and contraction clips are fastened to the deck of a home and has a moveable, sliding piece that attaches to a metal roof panel before seaming occurs. This is important because it allows thermal movement – which all metal roofing systems need. They also have a secondary identification – and you’ll find that some pros refer to them as ‘butterfly clips.’

When do you use it?

Expansion and contraction clips are used in roofing systems that have some sort of mechanical seaming. Every metal roofing system gets warm and cold and with that ongoing cooling and heating – comes expansion and contraction – just like anything else in your home. Long story, short – your panels wouldn’t be able to expand and contract without these clips and it could cause rupturing in the seaming as well as warping and other defects.

What should you consider?

While expansion and contraction clips are incredible assets to have and in some cases – required assets; the truth is they’re on the more expensive end of the cost spectrum for metal roof clips. This is particularly true when compared to fixed clips. In addition – these clips aren’t always assembled when they’re purchased – so every piece has to be put together by hand. This can add to labor costs and must be considered. However – the flexibility – literally and figuratively that the clips afford homeowners – is certainly worth the additional expense if said home owner can afford it.

In the coming months we’ll be covering a variety of metal roof clips – including Fixed Clips, Floating clips, Batten Clips and the like. If you’re unsure of which clip to use for your next big roofing project, give our team a call and we’ll be happy to provide you with a free consultation. Until then – good luck!

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Why Life-Long Metal Roof Fasteners should be an essential ingredient in your roof

In some cases a properly installed metal roof can last up to 60 years if properly installed. Read that back – and notice it says ‘properly installed’.

‘Properly installed’ can mean a lot of things depending on the situation – for example the type of roof panel, the geometry and the like. But regardless of those factors – they all share one thing in common and that’s that they all use long-life metal roof fasteners in exposed locations.

In many respects, the lifespan of a roof fastener or metal roof clip is just as important – if not more important – than the lifespan of the panels you’ve purchased. No matter what – your roof will have exposed fasteners and it’s important that they are of the long-life variety to prevent perforation of the panels. If it’s not a long-life fastener, it’ll eventually begin to rust and it can cause rust holes in panels and severely impact the performance of your investment.

Now if you’ve already contracted out your roofing job, then you’re still ok. Just make sure that you call your contractor and tell them specifically that you want life-long fasteners to be used in any location where fasteners will be exposed to the elements. And to make sure the job’s been done, don’t be afraid to get a quick inspection or do one yourself. Long-life fasteners are often stainless steel; stainless steel capped or has a zinc/aluminum cap.

Another thing you’ll want to focus on – is that installers will sometimes use long-life fasteners during he process but inadvertently use the wrong fastener in certain locations. Sometimes this is caused simply by mixing up fasteners in their tool bag. Other times, the misuse simply comes from needing a different fastener in a specific location. Just ask the contractor whether that came up or not – as it’s usually the case.

If you do find a non-long life fastener in your roof in an exposed area, then you’re going to want to replace it with one. While we’re not here to scare you, some of the issues that can be caused by non-life-long fasteners can be extensive and shorten the lifespan of your metal roof by up to 20 years. In some cases – even more than that.

If you have questions or would like to learn more about what life-long metal roof fasteners can do for your roof, give us a call and we’ll be happy to provide you with a free consultation.

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Five types of metal roofs

When people think about metal roofs – they make the mistake of just assuming that they’re all the same thing. Contrary to popular belief, there are dozens of styles of metal roofing products – and all of them can meet your tastes, needs or budget.

Metal roofs are a significant investment – but one that can provide a lot of savings over time. Choosing the right roof for your home could save you even more money! Here’s some of what’s out there and what makes each one unique. Let’s jump right in!

Standing seam roofs

The most expensive roof on the market – standing seams are hemmed every foot or two and don’t have any exposed fasteners on the roof. The benefit is that it’s an incredible roof. The downside? They’ll cost you a pretty penny.

CF Panel Roofs

Just like a standing seam roof, the fasteners are concealed and feature a joint lock system that makes your roof look clean and sleek. Use the right paint and these roofs have an incredible aesthetic appeal to them.

AP Panel Roofs

AP Panel roofs have the same LOOK of standing seams, but they’re a whole heck of a lot cheaper. These sheets offer homeowners a lot of durability, they look great and just like their more expensive cousins – will save you a lot on your energy bills and home owner’s insurance. They’re very popular in residential units, but in recent years – are becoming increasingly popular in commercial construction.

U Panel Roofs

U Panels are heavy roofs – as they’re made out of 26-gauge steel. People who want the benefits of metal roofs without taking the full-blown leap off the financial cliff prefer this model as they can be installed directly over existing shingle roof – which saves a lot of time, lots of labor and cost.

R-Panels Roofs

R-Panel roofs are super low maintenance and a nice alternative to a conventional roof. They’re most commonly used for retrofitting over existing comp shingles, which means you’ll save a boatload of money. The other perk to this panel is that the colors are fairly customizable, so the roof will look good.

Regardless of what model you want for your home or building, it’s important to remember that you’ll be spending a little money, that you’ll likely recoup the money via savings in the long run and that it’s an investment worth pursuing. Do your homework, speak with your contractor – and get the model that fits your situation the best. Good luck!

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The hidden benefits of metal roofs

Metal roofs are an excellent addition to your home almost no matter what, but here are some off the radar reasons for you to think about taking the plunge and buying one that you might not think of at first.


Cost control


Because metal roofs don’t really degrade the way most roofing materials do – a properly installed and inspected metal roof will end the worry as to what or when you’ll set a roofing budget again. Metal roofs often last for 30 or more years, so the likelihood of you having to worry about making another investment will be eliminated over the long terms. Especially if you’ve invested in your forever home, this will be a good way to maximize your profit over the long haul.


Lower weight


As structures get older, the lower weight of a metal roof can help guard against the movement of a particular structure – especially in areas where you might have to grapple with the possibility of seismic activity. Metal roofs are the lowest weight residential options on the market today and can allow you to not only install over any other surface material, but avoid having to un-install other materials like asphalt, shingle and the like.


Recycled content


Depending on the product you choose, a metal roof should be made from recycled content at a 35-95% clip. Not only is this good for the environment and save energy – but in the long run, when a metal roof finally outlives its own usefulness, the roof itself will be readily recyclable.

Peace of mind

Most metal roofs rely on things like failure-prone sealants and chemicals in order to function at a high level – especially in places like flashings, dead valleys and transitions. With metal roofing, you won’t have to worry about these issues as they’re far less prone to gaps, breaks and the like.

Beauty and aesthetics

Not many people put metal roofs and ‘looking good’ in the same sentence, but especially as environmentally conscious design becomes more and more in vogue, people are rethinking how they see metal roofs as a component that’s essential to aesthetic beauty. In places like northern New England, the upper Midwest and the like – places where snow is a fact of day to day life and architecture – designers are now paying attention to things like how to maximize the attractiveness of metal roofs and finding ways to present them in spectacular new ways. Metal roofs used to just be a thing that was a mater of function. Now they’re a matter of form as well.

Identifying the pros and cons of a metal roof for your home really just comes down to weighing the totality of your options. If you’re looking for something that last longer and adds ultimate value to your home over a long, extended period of time, then a metal roof may be for you.

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Metal Roof Fasteners

Metal fasteners are used when installing –
  • A new metal roof on a residential home, business or commercial building
  • A post-frame or pre-engineered steel building for an equestrian, agricultural, farm animal or product storage facility
  • Garage for an RV, boat or farm equipment

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The Clearwater Metal Roofing Supply You Need

With more than 38 years of business, Precision Fasteners & Components L.L.C. has provided Central Florida with the high-quality Clearwater metal roofing supply products. We are the place to buy metal roofing materials to make your customers happy. Call to speak to one of our experts at 1-800-985-2880 to place your next order!



Precision Fasteners & Components L.L.C. was founded in 1978 by Ralph Hoffstetter and his son Greg. Ralph and Greg are industry leaders that have a focus on quality. Both have been the President of National Tooling and Machining Association while balancing the reality of raising children. They have been members of the Society of Manufacturing Engineers for 30 years.

We give a helping hand to the Aerospace and Automotive industries and the metal roofing industry around the world. The company has received awards from Martin Marietta and Lockheed as a Clearwater metal roofing company.



Our company designs and tests all metal roofing screws and clips to ensure it meets industry standards. We take into consideration the areas throughout the central Florida with high wind conditions, hurricanes, and storms. The goal is to exceed the ASTM-E1592 tests conducted in an engineering laboratory where a pressure test is complete. We confirm that roof panels are secured and inflated with pressure. This process is repeated until we recognize a failure in the panels. Our engineer determines if the wind uplift limits of the roof are acceptable.

  • Precision Fasteners & Components L.LC. Products are time-tested Items sold up to 75% less than what major competitors are charging – that’s we call value.
  • Our parts earned UL Classifications and tested under ASTM-E1592 guidelines
  • Most customers have our clips “Dade Approved” and take advantage of our stainless-steel materials



A majority of our clients are in manufacturing, national distributors and roofing contractors. Our Clearwater metal roofing supplies are purchased from people in the Caribbean, Japan, South America, Korea and throughout the United States. We are proud to state that we are an international provider!

Precision Fasteners & Components L.L.C. ships deliveries on time to Clearwater, Florida, Tulsa, Oklahoma and Chicago, Illinois. Metal roofing supplies are shipped on the same day of order, and special orders sent within the week of the order.


Precision Fasteners & Components L.L.C. is based in Clearwater, Florida. Our facility is 20,000 square feet where the company ships metal roofing fasteners, roofing supplies, metal roofing clips and other products. The plan has lathes, grinders, electrical discharge machines presses that are 20 to 100 tons.


We have a shop of 11 journeymen, tool and die makers with certified machinists that dedicated to the metal roofing company. Our staff has up to 22 years of experience with our business.



We post helpful blogs every month to keep you up to date on tips and valuable information about our company. Call us for your next purchase! We are here to answer your questions.

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