Trapped moisture on roof at chimney due to improper Installation of cricket which flattens out before in gets around the end of the chimney. Recommend having evaluated by licensed contractor to advise best method to divert water around end of chimney.
Maintenance Tip after reading article of roof maintenance; Moss/Algae left on roof for long period of time can lead to the premature failure of the roof and subsequent leaks. Recommend treating during its growing season (wet months) with a non toxic cleaning product.
This image is a picture of roof decking on a 1920’s era bungalow. Rather than OSB or plywood decking, the decking used in this era was wood planks. Underlayment is visible through the gaps in the planks and the planks all seem to be in good condition. Also, ridge venting is visible. You can see that a gap in plank decking has been provided to allow the ridge venting to do its job properly.
The image that I chose was entitled, “Tile to Wall Flashing”. This image illustrates that pan flashing is the unique difference between tile roof and ashphalt shingle flashing installations. The pan provides a channel for roof drainage between sidewalls and the row of tile shingles adjacent to a sidewall. Step and counterflashing remain common components of tile and asphalt at roof-wall intersections.
Because of the great variety of tile profiles available, there are a number of different flashing
profiles available. You dont need to confirm that the flashing recommended by the manufacturer
is used, but you should check to see if the flashing installed appears to keep the water out of the
roof system.
Areas of a roof with medium or high profile tile that have gaps, like ridges, hips and valleys and
along the eves, should be filled with some type of pre-formed weather-blocking material. This
may be made of sheet metal, plastic or other material and supplied by the manufacturer. It may
also be a material like sheet lead, malleable aluminum or mortar that is formed and placed by the
installer. The purpose of weather-blocking is to prevent wind-blown rain and snow from
penetrating the roof, to improve the roofs wind resistance by keeping wind from getting
underneath the tile, and also to improve its fire resistance, since most underlayments are
flammable.
This is a section of my roof that uses concrete interlocking tile. This type of tile is highly indicative to the area where I live. Asphalt roofing is extremely rare due to the high summer heat that can easily reach over 110 degrees. The biggest problem appears to be tile breakage, followed perhaps by fastener failure.
Just because they are lighter doesn’t mean that lightweight roofing tiles are any less durable than our conventional concrete roof tiles. These products are beautiful, enduring and sustainable, making them a sound investment. Plus, they are backed by the best warranty in the industry.
Living in Florida, tile roofs are very common both because of their architectural look and wind resistance. This picture shows high profile clay tiles in an S shape that interlocks.It appears that mortar was used along the hip caps and looks to still be in good condition. However, this will tend to shrink and crack over time.
I read “Mastering Roof Inspections: Tile Roofs, Part 1.” Based on the information provided, my inspection essay should be amended to say that the S-type tiles in the picture are medium profile tiles. The article divided tiles into low, medium, and high profile categories.
The attached file demonstrates a tile roof showing the underlayment and battens before the tiles are laid. The image also pictures the valleys as well as the hip and ridge junctions. Additionally, the image shows the installation of a skylight and corresponding flashing.
My comments are based on Mastering Roof Inspections: Tile Roofs, Part 1. Tiles are generally made of either clay or concrete and categorized as low, medium and high profiles and are class A fire rated. Tiles are installed overlapping similar to shingles. Tiles are generally hail and wind resistant with proper installation.
After inspecting this tile roof, I observed several deficiencies that should be addressed by a licensed roofing contractor. The tiles were held in place by some kind of bonding agent and hooks to keep tiles in place. I noticed the bond on many of the tiles inso working and as a result the tiles are slipping and being split by the hooks as a result of there weight. I also observed many tiles to be cracked and in need of replacement.
Chinese drywall was installed in homes during the housing boom between 2004-2007 in the wake of Hurricane Katrina when building materials were in short supply. It is estimated that 250,000 tons of drywall were shipped from China during that time period. When the drywall becomes moist, it lets of hydrogen sulfide gas (non toxic) that can cause physical ailments such as sore throat, coughing, wheezing, headache and burning eyes. Some indicators that a home was installed with Chinese drywall are that it will smell like sulfur, or eggs. The copper pipes or any other metal in the house will become corroded as well as the wires. It is important to have a house inspected for Chinese drywall before purchase for these reasons.
The attic roof rafters are 16" inches on center. Roof decking is plywood with no signs of prior leaking. No deflection was noted in the roof rafters or roof sheathing. Roof rafters and sheathing are in acceptable condition at the time of the inspection.
Adjustable steel columns used as supports for a main beam need to be a minimum diameter. They must be securely attached at both the top and bottom. They should be plum and in good condition with no signs of corrosion or deterioration.
IN the attached image you can see a clay tile roof that is in rather poor condition. There are multiple tiles that are cracked on the corners or no longer properly fastened to the roof along with tiles missing all together.
the image chosen is that of a broken ladder rung. this is a major safety issue as it creates a great chance for an inspector to fall from the ladder weather it be from a great height or a low one. Not only should an inspector be aware of their own ladder but also any ladder that may be installed in a pulldown attic access
I am rewriting my essay about this picture because as soon as I hit the submit button in my previous submission, I realized I had given the wrong information.
Eave drip should be placed under the felt underlayment at the Eave edge of he roof and over the felt on the rake side of he roof.
The most common materials for roofing tiles are clay and concrete. In the past, tiles were also made from fiber cement, but those are seldom manufactured now due to dangerous health issues arising from inhalation of asbestos fibers. Tiles are also available that are made from metal and recycled plastic.
Tiles come in a variety of profiles and styles. Generally, profiles are categorized as low, medium and high.
