Standing-seams roofs are made up of many shingles or panels that interlock on the vertical axis, running from the roof's edge to its eaves. The point where two panels interlock (the seam) is raised a little off the flat roof surface, which allows water to run off the roof without any seeping between panels. Based on seemingly simple structural principles, the complexities of installing a standing-seam roof are not to be underestimated, the reason that DIY standing-seam roof installation will seem like a risky proposition to anyone in the know.

That said, metal roofing panels are generally much easier to move around than traditional clay or fiber-glass shingles. Weighing in at only one to two pounds apiece, their portability makes the logistics of lugging them onto a rooftop much simpler, so your contractor's unlikely to charge you the same rates he would for a more challenging job. You can also forego the need to tear the old roofing off, as installing a standing seam roof over the old roof is no more difficult than normal installation.

This is why, if you've already got your roofing materials, that trying to do a DIY standing-seam roof installation is going to be so much more trouble than it's really worth. If this sounds like a load of codswallop to you, and you intend to forge on no matter what the challenges, then here's a couple of metal roof installation tips. First off, after everything's been covered with a protective plastic membrane to prevent unexpected water seepage from entering the house, you should put down some roofing paper. Scratch that - lots of roofing paper. In fact, it needs to fill just about every bit of roofscape you can find, including the roof valleys (these are the spaces in between roof surfaces, which often resemble gutters). On top of that you'll need to lay a ridge cap, a preformed cover that fits over the roof's peak. The edges of this will be covered by your shingle, but it rounded apex will still peak out from the shingles, giving the roof it its essential character.

Now that that's all done, you're ready to start worrying about the shingles, or roof paneling. Ask around at the construction outlet or hardware store where you first procured your shingles and find someone that can demonstrate the manner in which the shingles need to be fitted together. If you haven't bought the materials yet, you should know that there are a bunch of companies that make panel solutions that are really easy to clip into place, designed for DIY standing-seam roof installation and requiring nothing but your hands and perhaps the most rudimentary assortment of tools. Check out the website of Permanent Roofing Systems (permanentroofing.com), where you'll find a PDF full of DIY metal roof installation tips available for download and instant reference.

If your roof is irregularly constructed - with features like skylights, dormers or chimneys - then you need to reconsider what your goal is in doing this job on your own. In such cases, pre-made shingles just aren't going to be enough to cover the entire roof surface. The irregular areas are going to require custom-cut shingles, and working with a saw and some chalk just isn't going to be enough. What's needed is hydraulic shear called a break, a portable device used by professionals to shape standing-seam panels on-site, a feat that would take a human ten times as long to replicate.

That said, there are going to be certain circumstances under which pre-made shingles just won't be enough, and that's when you need to swallow your pride and call in the pros. On roofs with irregularities - things like sidewalls, chimneys, dormers and skylights - standing seam panels will need to be cut to size on-site, which requires the use of a sophisticated piece of machinery called a brake - a hydraulic shear with teeth sharp enough to cut panels to just the right length without damaging their ends. That's one feat it's very difficult for a human saw-wielder to replicate.

So maybe, on just this one occasion, it's the time to loosen those fists and hand over the cash for a skilled roofer's work. Indeed, if your worker as recommended by the manufacturer, or at least is recognized as qualified to install standing seam roof panels, it'll mean that your roof is subject to warranty - and that you can look forward to fifty or more years of being secure in the knowledge that you've a strong roof over your head.

For more interesting articles on DIY Standing-Seam Roof Installation check out www.DurableMetalRoofs.com