Repairing Metal Roof Properly Can Extend Its Life

Repairing Metal Roof

Home roofing is not only to protect you from harsh sunrays or rains but to enhance the curb appeal of the property. A colorful and well-designed roof panel may increase the aesthetic value of your property several times than that of a concrete roof. If you are planning on installing a new roof or replacing an old and leaky roof, metal roofing panel may be a great choice. As you will not be changing your roof every month or so, several things are to be kept in mind during such installation. Although metal roofing offers low maintenance and energy efficiency in general, you will want to check the quality of the material.

There are a variety of metal roofing panels out there that differ in quality, price, design, and durability. Popular types of panels in the market are SL-16®, Imperial Rib®, Lokseam®, 5V Crimp, PBU, PBR, and Rustic Trail. Whatever material you use for installation, you need to take proper care of the roof. For this, inspect regularly and check for any holes, leaks, and development of rust. Despite optimum maintenance, any roof will undergo wear and tear with time, especially in cold areas where winter is severe (In case you need to repair roof damage in winter, check out this article). Sometimes, it may be too early to replace the whole panel. You might be with a limited budget, or it does not sound reasonable or practical to change the panel considering its age. In that case, a repair will be the best option. A good repair can give you an incredible service in the coming years. Conversely, a lousy repair will continue to leak and drain your pocket.

It is wise to address the problem in your roofing promptly because a delay in repair will encourage rough weather to damage interior items like furniture and clothes. Again, choosing the material for repair is a bit tricky because the patched area will expand and contract with temperature change at different rates than that of the existing panel. It will cause the patch to slide over the main panel leading to cracks and failure of the repair site. Following the appropriate procedure, you can minimize the chance of early repair failure.

Tips for repairing a hole in the metal roof

Tools you require to repair a hole in metal roofing include a cordless drill, metal snips, wire brush, paint brush, caulking gun, marker or pencil, metal sheet (the material should match the existing metal panel, you can contact Metal Roofing Houston for advice on that), urethane sealant, and an appropriate color-matched paint.

  • First of all, get to the roof with a ladder and clean the area to be repaired. Use all-purpose Simple Green or a good cleaner to remove any dust, rust, film, or algae. Any residue will reduce the strength the sealant. Next, scuff the surface with a wire brush to make it raw and allow a strong bond of the sealant with the metal. Do not scuff more than half a centimeter of the intact surface beyond the margin of the defective area.
  • Make a visual guess about the dimension of the defective area (size and shape). Then take the sheet metal and cut it to a size and shape so that it covers at least 5cm past the margins of the hole. Now round the corners of the piece to prevent snow from accumulating at the sharp corners. Place the patch over the hole and mark over the metal panel around it with a pencil or marker. Again make sure the patch overlaps 5cm of the intact surface beyond the margins of the hole.
  • Apply the sealant uniformly inside the marked area and make a thin layer to receive the patch. Now place the patch over the sealant layer and apply light pressure. The sealant would come out from the outer edges of the patch in all directions. If there is any dry area at the margin of the patch, suspect a gap between the patch and metal sheet. Add some extra sealant at that site to prevent penetration of liquid or moisture in the gap.
  • Use pan-head sheet metal fasteners or screws to secure the patch on the panel. Place the screws one inch inside the edges of the patch, keeping a distance of three to four inches between each. Remove the extra sealant oozing from the margin of the patch.

If you desire, paint the patch with a color that matches the metal panel. However, do not mess up the paint with the sealant, check before buying so that both are compatible with each other.

Related posts

Leave a Comment