Making sure that you research clay or concrete roof tiles that are compatible to the environment that they will be in stalled in. This could reduce the risk of premature deterioration, discoloration or early breakage due to brittleness. Engineering the proper decking or battens for the weight of the tile roof load is essential to preventing a disastrous collapse.
You can see the different color shingles from when the porch overhang was added on to the home. You can see the side wall and kick out flashing diverting rain water into the gutters. The gutters appear to be secure to the home.
While reading the carpet in bathrooms article i learned that installing carpet in commercial building bathroom is against code. Also i learned carpet in bathrooms can lead to structural and health problems. As well as foul odor from absorbing urine and water.
Residential roofs and their tiling can come in many forms. I do not have access to a clay or concrete roof, but here is a picture of a standard residential asphalt roof. It is composed of usually plywood as support, roof sheathing, underlayment, and finally the shingle itself.
There are three basic types of underlayment used beneath roofing materials: asphalt-saturated felt, rubberized asphalt and non-bitumen synthetic. One of the most common types of underlayment used in residential is black, ashphalt-saturated felt paper.
Felt underlayment is water-resistant, but not waterproof.
This photo shows a severely damaged roof tile. Roofing tiles that expose the underlying roof can be a source of water and moisture infiltration that can lead to water damage to decking, structural members, and interior areas. This tile should be repaired as soon as possible.
I read Mastering Roof Inspections: Tile Roofs, Part 1. In this article, I learned that the most common materials for roofing tiles are clay and concrete. Tiles come in a variety of profiles and styles. Generally, profiles are categorized as low, medium and high.
This is a tile roof done with battens and a metal valley. The battens have been installed on top of the metal which caused debris to accumulate. The battens need to stop at the valley. The metal should fold up at the edges to form a smooth channel that allows water to wash debris to the ground.
Inspecting step and kick out flashing summary.
-Step flashing for side walls should extent 4" up and 4" out, and integrated I to drainage plain. So 1. Felt 2. Step Flashing 3. Kickout 4 shingles overlap roof portion of flashing. Siding ending one inch before roof.
-kick out flashing for roof termination on side walls
-fabricated headwall flashing
-boot or collar flashing on pipe and vents extending above roof.
-underlaymemt should continue up the walls over the walls water resistant barrier at least 7 inches.
-self adhering flashing should be used to cover the overlap point from the wall system to the underlaymemt.
As you can see in this picture the clay tiles has slipped a bit and have deteriorated a bit. The fasteners have also deteriorated and have caused several tiles to dislodge. As a result, this could lead to severe water intrusion. This has also caused the guttering system to fail at the base of the roof.
Mastering Roof Inspections: Tile Roofs, Part 1
As a process of understanding what a home inspector should be inspecting for, this roof inspection series is very informational. What I learned here is that there are common materials for roofing tiles. Those are clay and concrete. They also come in a variety of profiles and styles in four different categories; flat, low, high, and side profiles. Because of the different profiles many must function in a variety of functionalities as well. There are interlocking, overlapping, and butting. There should also be a birdstop installed at the ends.
The Tile Roof Institute Installation Manual says that on 4:12 roof slope(33% Slope) or greater a single layer of ASTM D226 Type II (no. 30) (ASTM D4869 Type IV) felt paper or approved equal shall be applied shingle fashion. The industry standard for tile roofing, in short, is one layer of 30lb (ASTM) roofing felt paper. There are many many new underlayments on the market all claiming to be the newest greatest underlayment replacing 30lb felt paper. There are a plethora of different brands, too many to be compared here.
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 legislation that was enacted to limit the use of asbestos in products used in North America. Tiles are also available that are made from metal and recycled plastic.
Inspecting tile roof you check for various things. You check for cracks, missing tiles, proper fastening among other things. You have to make sure you know what your doing if you decide to walk on a tile roof.Tile roofs need to be inspected.
This essay is on how home inspectors are a valuable asset to home owners. They help homeowners not buy a house that will fail on them or their families. They make sure that the house is safe.Being a home inspector is a big job.
I chose a picture of a defective roofing tile. This tile is a concrete tile. As you can see in the picture there is a hole in the tile. This is an issue because of water damage through the open space in the tile.
I chose the picture titled “Tile to wall flashing”. I think this picture is important because it shows how flashing should be installed properly with tile roofing materials. If this is not installed properly it could cause water damage to the underlayment.
The ,building process of this roof shows the various steps in install where it can demonstrate things like rafters, vapor barrier, Interlock, flashing, ridge, flashing, head wall and much more.Its also important to see how the water would run in case of a rain storm.
Ten easy ways to make a home more energy efficient. This article makes me think of our training and how much air flow has everything to do with a home from trapped moisture, to how much one 1/2 inch hole in a wall can suck in a cup of water per year. Controlling air for water retention and air reduction with the use of insulation, or being able to cut down on air conditioning by creating more air flow. I never thought about the impact of air so much.
The picture show a Spanish roof tile roof that shows some tile damage. The recommendation in this is would be to have a roofing professional remove the damaged tiles, assess the situation and properly replace them. This type of damage is typical damage made the action of strong winds.
