United Roofing's Blog

Minnesota Residential Roofing Services Minneapolis MN

Re-roofing – Tear off and Roof Recovery MN Re-roofing – Tear off and Recovers There are two options available for re-roofing installations.  One would be to tear off the old roof before applying the new one (tear off).  The second would be to lay new shingles over the existing roof (lay over).  While the second choice is the less expensive of the two options, it is not necessarily always the best choice. Is It Always Necessary To Tear Off Existing Shingles Before Reroofing? There are advantages to tearing off the old roof before installing a new one.  For example: If there are any defects in the roof deck, they will be revealed when the roof is torn off. These defects should be repaired before applying the new roof. If condensation problems exist in the attic, they too will be revealed when the roof is torn off. Properly designed attic ventilation can then be installed in order to help eliminate such problems. When the old roof is torn off, waterproofing shingle underlayment can be installed before applying the new roof.  This will help protect against leaks created by cyclical ice damage and wind-driven rain. Tearing off the old roof and starting with a clean deck before reroofing may result in a smoother finished roof system. Although there is added cost to these advantages, each lessens the likelihood that the validity of the manufacturer’s shingle warranty will be impaired.  If the old roof is torn off, your contractor should be responsible for the cleanup and disposal of the old shingles, but make sure your contract states this clearly. If you do plan...

Roof Repair MN | Minnesota Roof Leak Repair

MN Roof Leak | Roof Leak Repair MN A roof leak can result in significant damage to insulation, walls, ceilings, flooring and personal property. If undetected, a roof leak can cause rot that will endanger the structural integrity of the roof framing system and cause costly repairs.
 The larger the leak, the greater the damage; however, even a pinhole leak can ruin an entire room during a single storm. According to the National Roofing Contractors Association, a roof should be inspected at least twice annually — once in the fall before the rains and again in the late spring to determine how it fared during the winter. Look for loose shingles or shakes, or, if you have a tile or slate roof, check for missing or cracked pieces. On shingle roofs, look for curling, fraying and tears at the edges. Check the flashings around chimneys, vents, skylights and other roof penetrations. They should be tight and in good condition. Maintaining good roof flashings, especially those at roof edges and penetrations, is crucial. Many roof leaks are actually flashing leaks. Sometimes a visual inspection of the roof isn’t enough. A water test may be in order. You’ll need to venture atop the roof to do this effectively. Use a firmly braced or tied-off ladder equipped with rubber safety feet and wear rubber-soled shoes to avoid slipping. Using a garden hose, run water onto the areas where a leak is most likely. For example, if there is a water stain on the ceiling just in front of the fireplace in the living room you’ll want to concentrate on that general area....

Roofing MN | Roof Flashing

Roof Flashing Most leaks take place around roof penetrations. They need to be installed correctly and checked periodically. Did you know that 90% of roof leaks are caused by improperly installed or deteriorated roof flashings? The other 10% of roof leaks are usually the result of improperly installed windows or gutters which can cause water to leak along and inside walls of your home. Roof Flashing Done Right If you’re collecting dripping water in a pot beneath your roof, you may want to inspect the roof flashing. Anywhere surfaces intersect on a roof is a prime spot for water seepage. Flashing provides the extra protection these spots need. These problem areas include the edges of skylights and chimneys, soil stacks, vent fans and roof valleys, as well as the intersection of the roof deck and dormer walls. Most flashing is made of galvanized metal, but DIY’ers may prefer aluminum flashing because it’s easier to bend. Most flashing products are designed for easy installation, and if the material is installed correctly, then your roof shouldn’t leak. However, from time to time, the nails that fasten flashing work loose, or the flashing material pulls away from seams and joints and requires maintenance. Here’s a look at some general principles of roof flashing that will help guide you through a proper repair or replacement—or even new construction. Roof Design All roofing systems are made of a number of different components: roof sheathing, underlayment, roofing material, roof intersections, flashing details and ventilation. Each of these systems must be installed correctly for the system to work as designed. Common pitched roof systems rely on...
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