Tile Roof Inspection, April 2013, Edmonton

This client reached out to GRS for work on their multi-home building's roof. It is a tile system, with several reports of water ingress and expected damage to the roof itself. GRS sent out a technician to investigate the problems. Unfortunately, photos of the roof taken during inspection are no longer available. The placeholder image above simply provides context to the roofing system style.   Quotation Delivered: April 3, 2013 GRS delivered a quotation to the client covering the services they'd requested. The scope of the work, as outlined in the document, was to remove the tile, check the underlying membrane and valleys, carry out any repairs, then reset the tile system back on top. Before scheduling the work, however, we felt that it would be best to send an inspector out to investigate the problem areas to ensure that the quotation would be fair to both parties in the arrangement.   Inspection: April 22, 2013 The inspection crew went on-site to examine the extent of reported damages. For four of the suites in the building, they checked the roof above and found some major damages that required repair. Near the first suite, there was a major hole in the firewall where both sides of the lead wall's flashing were bent and folded back. The extent of the damage was allowing water to run in behind the flashing and through the hole, spreading down to the suites below as far as the first floor. There was also a piece of wall flashing missing on the front of the turret in the same section, with potential leaks on either side of the chimney in the area. The chimney itself was missing a proper installation and application of ice and water membrane/shield installed around it. Across from these affected areas, on the back of the building, there were several cracked and/or missing tiles in the valley, exposing the roof deck to water and snow that had allowed water ingress to the suite below. In this section of the roof, all of the tiles would need to be removed and the ice and water membrane installed underneath so as to prevent further leaking. Then, with the tiles put back in place, the missing/cracked ones will need to be outright replaced with new ones. Above yet another unit (on the northern corner of the building) there is a long valley that might be overflowing its metal flashing sidewalls and into the attic. Above this valley is a set of short, attaching valleys that separate at 6/12 grade roof from a 4/12; creating a 2/12 grade roof in the middle. On this last 2/12 roof section a great deal of snow could/would pile up during the winter, creating ice dams that allow for a backup of water. These problematic valleys should have the ice shield material on either side of the metal to help keep water in the valley itself. When the crew first attended the site to investigate problem areas and leaks, there were only three that they knew to be coming in. While atop the roof, however, they found that there was no ice and water membrane used alongside any of the roof valleys (not just the ones noted above). Given their absence, it's possible that any and all of the valleys could become future candidates for leaks or further roof damages, especially when any of the surrounding tiles are cracked or otherwise broken/misplaced. The investigative team advised that the roof be cleaned off of leaves and debris, which would allow for a thorough accounting of all of the tiles and the existing system. Rubber-modified sopramastic should be applied to all cracked tiles around the roof to prevent further leakage, and the side cap tiles should be refastened in any places where the nails seem loose or missing.   This post will be updated with roof reports should the client elect to contract GRS to carry out the required work.   CODE: 6703 Contact Us Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.