If you have roof tiles that have not been replaces in more than a quarter of a century, they need to be evaluated by a qualified professional. The way tiles work is by their overlapping design. This is the difference between 15-20 year tile roofs and 40-50 year tile roofs. Sponsored links. RELATED ARTICLES. Complex Roof Problem. Electrolysis uses moisture as catalysis at a molecular level to pass ions from one metal to the other. When flashing isn’t layered correctly and sealant applied in the right junction areas, seepage is allowed. Developed by a local manufacturer, Dan’s Customer Sheet Metal, a new-patented metal anchor ridge cap flashing was designed to increase the wind uplift of cap tiles. There is no way to repair this issue – it is a sign that replacement is near. Over the last 35+ years in the roofing industry, I’ve found that most problems with the underlayment are installation problems, rather than flaws in the material itself. How to Find Roof Leaks. As water flows down the roof it often is blocked behind the vent creating a small area of water ponding. Ell flashing should be nailed every six inches on center. When tile roof systems are installed on steep roof structures, 1″x2″ wood baton strips are utilized to help hold the tiles in place during installation and provide a walkable surface. A standard installation guideline on all roof systems is to never install fasteners in the valley’s center. The near flashing was the wrong size for the pipe it was to flash, so the installer simply hammered it in to close it tight to the pipe. This will minimize the dependence on sealants, which deteriorate over time. The boot should be replaced and installed correctly. One of the biggest problems we see with concrete roof tiles is the shady roofers who fit them. We spray the roof with two generous coatings of specially formulated roof coatings from Ren-O-Tec. Many of the technical books about roof tiling and slating are rather vague and conveniently ignore some of the trickier problems and how they can be resolved. Many people associate tile roofing with Mediterranean-style architecture and design, especially Spanish-style buildings. Common Problems With Tile Roof Systems Tile Roofs. During installation, the technician would simply use a wooden dowel or furrow to create the weep hole. Tile roofs are unique in this aspect, as the primary drainage plane is the underlayment and not the top-most layer like other roofing materials, such as asphalt or wood shingles . Over time movement causes the mortar to break loose from the cap tiles. It is also acceptable to nail down batons and then screw the tiles into the batons. The underlayment is lapped sheet-over-sheet and is another watershed designed to prevent any water that gets past the tiles and flashings from entering the house. [Click any image for an enlarged, detailed version.] If you have never fixed a roof tile or slate before but have wondered how to go about repairing or replacing them, then this is the book for you. Step 1 - Identify the Cause. Although sealant may have helped avoid leaks, over time sealant breaks down. Here are some top strategies for protecting your tile roof from pest damage and intrusion. Post navigation ← Common Problems With Tile Roof … Family Handyman. Check out the loose roof tiles and chips. Tile roofing is durable and adds great curb appeal to your home. A concrete tile roof is at or near the end of its useful life when a significant percentage of the tiles show damage or deterioration. Felt underlayment generally wears down much faster than the tile above it, requiring repair or replacement about once every 20 to 30 years – that is still a long time but not as long as 50 years. This shelf creates a flat roof area at the roof’s perimeter. A tile roof’s cap tiles are installed and held in place by a few different techniques. Joe is the owner of Roofsavers Locke Roofing in Tucson, Arizona and has worked in the roofing industry since 1983. Too much of this rubble clogs gutters and backs up water that can leak through the roof and cascade from it, increasing the possibility of repairs in and outside the home. You may be able to notice broken tiles from the ground. Sometimes a tree branch or flying debris may impact the roof causing damage. The photos below were taken on a roof where the flashings were leaking. Adding sealant may prevent seepage temporarily but is not a roof cycle solution. When installed correctly, they do “shed” water. Ignoring potential trouble spots is also a surefire way to get yourself in hot water. The only way to properly repair this issue is by replacing the valley flashing. The correct way to repair this area is to replace the flashing with new. However, it is a sign that replacement is near. Some roofers use batons on all roofs because it keeps the tiles off of inferior underlayments. Since concrete tiles are heavier than their counterparts, they require stronger structures to support them. Here is evidence from a Bonita Springs roof that the tie-in area is not sealed properly. After Hurricane Andrew in 1992, our code system was completely redesigned. This will help prevent the cap tiles from blowing off. If so, contact an insured and bonded roofing contractor immediately to have the pieces replaced. In fact, tile roofs and solar panels are a great combination, because a properly installed tile roof can last 100 years. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation, push the insulation aside and look for flow stains on the plastic. Unlike a roof system that is appropriate for a flat or low sloped structure that is a water-tight membrane, a watershed is simply a system that carries water from one component to the next until the water flows off the roof and onto the ground. This allows any water that comes in contact with the flashing to dump under the tiles and onto the underlayment. hot asphalt installed underlayment system is installed and the tiles adhered using mortar add extra weight to the system. A visual inspection of the roof can be made from ground level, maybe using binoculars if you have them. When properly installed, underlayment is installed starting at the bottom of the slope and lapped successively up the slope to the top. Tile manufacturers have released technical bulletins warning of the potential danger arising from this practice. Over time, even the sturdiest flat roof will require roof repair.You need your roof to protect your commercial or residential building and keep everyone safe. This boot should be removed and replaced with a new lead boot. Slate tile requires a pitch of 4:12 or greater. In fact, it is Kelly Roofing’s #1 repair area on all roof systems. You can even see spots where roof tiles have broken off. The pitch transition on your roof does not have any flashing in it. Valley metal is installed by crimping the valley center, fastening the entire length of both edges, and then applying mastic to cover the valley metal edge and fasteners. Flashing that is not layered correctly and sealant applied in the right junction areas allow water seepage. As you can see, a tile roof is a complicated system of watershed components that all must act in concert to keep the dwelling watertight. This system is sliding as evident by looking at the perimeter edge. A concrete tile roof costs about $18 a square foot or $27,000 for a 1,500 square-foot home with a moderate pitch using decorative flat tiles. This results in no water or frost damage on your roof. Tile roof flaws generally fall into two categories; technical and practical. Tiles roofs are designed to flow water from tile to tile until it reaches the edge of the roof. The rust needs to be cut out and a new flashing installed and sealed properly. | Website by, Maintenance and Coating of Built-Up Roofing, ← Definitions of Roofing Terms Used in Roofing Proposals, Why Do Tile Roofs Leak? This does not provide the intended wind uplift. Concrete Tiles Weaknesses. Eve riser is used to prevent rodents and birds from nesting in the tile cells. There are also several newer types of underlayment materials and synthetic underlayments being developed and installed. This area should be repaired before interior damage occurs. The first thing to look for is any roof … As with all pitched roofs, it is possible for a tile to get broken or to go missing due to extreme weather or incorrect installation. Most modern tile roof systems on houses in the Tucson, AZ area that were built in the last 30 years have some sort of flaw, and many have several flaws. We spray the roof with two generous coatings of specially formulated roof coatings from Ren-O-Tec. The #1 Cause & How To Avoid It →, Headlap issues – where the tiles of the roof simply do not lap over each other enough, Transition flashings issues – where transitions in the roof components are simply not flashed or are flashed in-adequately. Aluminum structures are inexpensive and easy to install. Today’s roofs use a specially designed metal flashing with pre-punched holes. Joe is the owner of Roofsavers Locke Roofing in Tucson, Arizona and has worked in the roofing industry since 1983. Douglas Sacha / Getty Images The function of the flashing is to provide a seal, a watertight seal, between roofing materials, roof sections, and other parts of the building. Tile roofs with a #30lb.felt paper base and a #90lb. For a period of time, the tile industry allowed a reduced fastening pattern in an effort to compete against asphalt shingles, which offered an impressive look and has a longer useful life. The traditional underlayment is #40 organic fibered, asphalt-impregnated paper, often installed two layers thick. Incompatible fastener types were used and electrolysis is occurring. Vents are installed on the roof to allow for attic airflow. Kelly Roofing strongly recommends Top Flashing on all tile roofs. Often this is the first area on a tile roof to cause seepage. However, it is vitally important that weep holes allow water, which flows under the tile, to escape. It’s better to be sure the job is done right the first time! During light rains and morning dew, water seeps under the roof system and deteriorates the perimeter decking sub-fascia board and fascia board. Over time movement causes the mortar to break loose from the cap tiles. The common failures on clay tile roofs include cracked broken tiles, spalling (in freezing climates), loose tiles that slide down out of place (on roofs where not every tile is secured to the roof deck), flashing failures (corrosion or cracking), and fastener failures. Although flashings bridge transitions in the roof, they are ineffective when not sealed properly. The Critical Relationship Between Buildings and Sustainability for the Future (IFMA 2020) 3 Tips for Weatherproofing Successfully Year-Round. Common technical problems include: Practical flaws, on the other hand, are serious flaws that result in immediate leakage or rapid deterioration of the roof. Electrolysis causes the fastener puncture to deteriorate and widen, allowing a water path and seepage. For a period of time, the tile industry allowed a reduced underlayment requirement in an effort to compete against asphalt shingles, which offered an impressive look and increased useful life. We know and follow the strictest Florida regulations so you don’t have to worry about your roof. Adding sealant may prevent seepage temporarily but is not a roof cycle solution. The photo below shows how this is done. Over time, however, the elements of nature, as well as humans, can damage roof tiles. Water which runs down the roof and wall is caught by the ell flashing and channeled to the roof’s edge. If you notice a loose or missing tile, you should take immediate action. Roof moss rarely causes roofing problems, but should be removed if it blocks up gutters and other drainage systems on the roof. When installing a roof system it is important to always start at the lowest point and proceed upward toward the roof’s peak. Underlayment is installed under the tile as the final backstop against leakage. Many times these walls are simply stuccoed and painted. However, there is no code approval for this technique and it has caused serious damage to roofs. Ponding water is water sitting on any asphalt roofing material longer than 48 hours without run-off or evaporation. Tile Roof Problems - How can a homeowner inspect their tile roof and recognize the telling points that may show your roof has problems? If each row is not offset correctly, water may enter the system. Concrete Tile Roof Repair Cost . Kelly Roofing is here to help. The temporary solution is to lift each tile and spray roof tile adhesive under it to create a new bond. Generally speaking, the materials roofing tiles are made from are chosen for the look that you are trying to achieve. In some cases, roof sagging problems are not caused by framing issues. The unfortunate truth is roofing contractors who work for developers … The correct way to fix this issue is to install a new vent. When it is time to replace the roof ask your contractor to use a special ridge anchor flashing to hold the cap tile in place with fasteners and mortar. They last from 60 to 200 years, with their main problems lying in the fastening material, which can rust if made from corrosive substances. This often involves water flowing over flashings, or a series of flashings, that surround roof penetrations and are shaped to carry water back onto tiles below the penetration. Cap tiles are used to cover the hip and ridge areas of two adjoining decks. The junction between your pitch roof and the flat roof is called the “tie-in”. During this movement, the tiles bind against each other. Connect with us today if you’re in need of tile roof repair. This will create a concrete tile that actually repels water off the surface. Generally speaking, a tile roof leak on a roof that’s under 35 or so years old and has not suffered a weather event is going to be a direct or indirect result of the original installation. It comes in natural colours that return your roof to its original appearance, negating the need to re-roof or re-tile. If the tile roof is installed correctly, there is no reason to pay the extra cost and take the extra risk of installing a material that has not yet proven itself over time. Although it is not cost-prohibitive to proactively remove the tiles, as repairs are made to the roof’s edge, the tiles should not be reinstalled. The flat roof membrane is a better detail as it provides one continuous piece and protection without adding maintenance. The sun’s UV rays cause oil migration much the same as it does to exposed asphalt. Without a trained eye… how can you tell if your tile roof has hail damage? Bottom line: tile roof and solar panels can go great together. We have seen an increased number of leaks with this type of underlayment. This roof does not have the correct flashing and is relying on sealant to disallow seepage. We won’t go into that roof leak repair in this story. We suggest sealing the underside of the ell flashing and installing the correct number of fasteners as specified by code. The roofing system is typically a pan or super-pan type made of aluminum and coated white. If your tile roof has hail damage, you need to get it fixed as soon as possible. Counter flashing is metal flashing installed into the wall to protect the roof membrane from coming loose from the wall as it transitions from the roof area. This counter flashing, which has a concealed return flashing cut and installed into the wall, has come loose from the wall and is allowing water to enter. It is also the wrong flashing for a pipe of this type. This cement is either dyed using oxide during installation or painted using a concrete stain. Since the caulking will not reseal it is our suggestion that a transition membrane is used to cover the tie-in area as would be installed on a normal flat roof tie-in. Since a valley is designed to channel water between two pitch areas, it receives more water flow than any other part of the roof. Since mortar does not self-heal it continues to separate. Valley metal buckling disrupts the immediate flow of water and creates water vortices, a circular flow of water that leads to roof seepage. Each tile has two predrilled screw holes. You'll be able to keep your roof in good shape by checking these trouble areas regularly. These are finding different levels of success but the jury is still out on the long-term performance of these materials. Inferior roofing materials. Tile roofs are known for their longevity. There are flashings for pipes, vents, headwalls, sidewalls, valleys, and more. When installing tiles using nails and especially screws, an overturning of the fastener can put increased pressure on the tile’s corners. Rusting and seepage can then occur. Five common roof component problems are reasonably easy to identify and repair on your own. It is also very important for the two roof systems to have the correct flashing detail and extra sealant protection. In this article, I describe the most common problems with tile roofs and what causes those problems. If it is not, this provides a direct path for water to flow behind the wall surface and into the building. Of course with the failures tile roofs endured after Florida’s hurricane activity, specifications have changed. We're proud to be an Tiles are common amongst the majority of roofs across Britain, however, as like lots of materials, they do have their problems. Often water runs to openings in the vapor barrier, such as at ceiling light fixtures. FLAT TILE Our traditional concrete interlocking flat style tile is fixed on the roof in a broken bond pattern. February 4, 2004. The main reason concrete tiles … If not sealed properly, these flashings do little to stop water from entering the roof system. Proper maintenance can make your tile roof last longer than most relationships, but there could be trouble just beneath the surface. Rotten or saturated sheathing can also cause roof lines to sag. This can be resealed as a temporary fix but should be replaced for a more permanent measure. Table of Contents. Cracking can occur from: Items falling on it Harsh weather Freezing and thawing Moisture Hail Age Walking on it Examples of Clay Tile Roof Wear or Installation Problems that Limit Roof Life. 1. Ell flashing is designed to bridge the roof to wall transition and allow for protection against water intrusion. Fascia. It is our recommendation these areas are repaired. Here cap tiles separated from the mortar and are loose. Clay roof tile can be susceptible to leaks which are caused by various problems with the installation methods, tile itself, and age. © 2016-2019 Roofsavers Locke Roofing. Over time the sealant will deteriorate and allow leaks. The manner in which a leak can be repaired will differ depending on the cause of the problem. Slate shingles will have a rough, rocky texture and vary in color from tile to tile. Broken or loose guttering Damaged guttering can easily lead to leaks, especially during heavy rain. By avoiding some typical mistakes, you should be able to ensure that your home remains protected from the elements. Your roof flashing is the sealant that protects areas of your roof that … Be sure to find a qualified roofing company to provide an inspection or to make any essential repairs. When moisture enters the wall it causes moisture bleed out and swelling. Proper water flow and installation should always be considered with all rooftop objects. Here are voids in the roof flashings where sealants were not applied correctly. Adding more sealant may stop the seepage for a year or so, but the only correct way to fix this area is by removing the flashings and installing them correctly. Asbestos roof restoration is suitable only when your roof sheets and roof structure are still in suitable condition for restoration. The only way to elevate this issue is to replace the roof. No ell flashing was installed at this detail. In discussing types of clay tile roof damage, we include advice about how to inspect a tile roof and on how, if ever, you might walk on a clay tile or concrete tile roof. Tiles to save money in no water or frost damage on your roof water is water sitting on asphalt. Mastic sealant correctly flow of water entry vortices, a circular flow water... Roof tile can be resealed as a curb repaired, the roof, they do have their problems this any... Asphalt-Impregnated paper, often installed two layers thick strongly recommends top flashing on all roof.. Oxide during installation, it is important for the two roof systems have... In it roofing business since 1972 Florida regulations so you don ’ t layered correctly causes. 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