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Roof and roof valley inspection checklist:

 

There are several methods inspect roof. We recommend the following:

  1. Walk the roof from the ground. (Do not walk on any roofs)
  2. View roof from a ladder in different locations around the home.
  3. View roof from the ground using binoculars.
  4. View roof from a window inside the home.

79 Roof and Chimney Pictures and Descriptions!

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Different types of roofing:

Even if you are told a new layer of shingles has been installed on the roof it is very important to view the shingles because depending on the area you live such as Florida (Southern State) shingles have been known to fail in 12 to 14 years. In most northern states with a higher pitched roof the shingles can last 25 or more years. Roof with two layers normally never go bad in 12 to 15 years.

 

  1. Asphalt Shingles – They are the most common type of shingles used in the country today. Most of these shingles are sold by the length of their warranty (i.e. 20-year, 25-year and 30-year. The difference is the weight and the design of the shingles.
  2. Rolled Roofing – Is fabricated the same way as asphalt strip shingles. Rolled roofing is generally installed on roof with less than a 4/12 slope. We found the life of the product to be approx. 10yrs.
  3. Wood cedar Shake, terra cotta tile or slate shingles, metal – we recommend due to the expense of these types shingle you hire a professional who is knowledgeable with each different roof covering.
  4. Rolled rubber roofing– Always check for ponding of water, seams separating, signs of allegrating and check very carefully around the chimneys and vents for any separation or loose open joints.
  5. Metal roof – Metal roofing generally comes in two different types, either flat seam or standing seam. A standing seam metal roof generally last 75 to 100 years if properly maintained. Maintance pertains to periodic scrapping and painting with rust resistance paint.

 

The following photos represent several different problem areas found in roofing. Always check for water stains and water leaks around chimneys (common area for water leaks).

Common problems with asphalt shingles:

roof_shingles

Properly installed roof shingles.

Ashpalt Shingles bubbling and blistering

Deteriorating shingles due to age, what youare actually looking at is shingles that arestarting to bubble up in different areas.

Cracking Shingles Deteriorating Due to Age

Cracked shingles deteriorating due to age. Depending on how severe the cracks are will determine the life remaining. These shingles have approx. 5 years life remaining.

Shingles Losing Excessive Amounts of Granulars

Shingles loosing excessive amounts of granular. This is sometimes only viewable from on top of a roof or from a ladder. It is always important to look at the shingles on a roof as close as possible

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Rolled asphalt roofing:

Fabricated the same way as asphalt strip shingles. Rolled roofing is generally installed on a roof with less than a 4/12 slope. We typically find the life of the product to be approx. 10 yrs.

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Wood cedar shake, terra cotta tile or slate shingles:

 

Wood Shake Shingle

Wood Cedar shake shingles

clay_tile_roofing

Clay tile roofing.

slate_shingle

Slate shingles

 

 

Metal roof:

Metal roofing generally comes in two different types, either flat seam or standing seam. A standing seam metal roof generally last 75 to 100 years if properly maintained. Maintenance pertains to periodic scraping and painting with rust resistance paint.

 

Metal_roofing

 

Three different types of roof valleys properly installed:

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Determining how many layers of shingles your roof may have:

drip_edge

The white area the arrows are pointing to is a drip edge, when you see this it generally indicates that you have only one layer of shingles. This is not a 100% guaranteed, you still have to look close at the shingles and the roofs edge to make your best educated decision.

Roof_c_channel

The brown area you are looking at directly under the shingles is what is called a C-channel, when you see one of these directly below your shingles it is a very good chance you have 2 layers of shingles on your home. You will sometimes see them much wider than this, then you may have 3 or more layers of shingles.

Roof Ventilation Inspection:

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Common Gutter Problems:

Missing Downspout Diverter

Missing downspout diverter

Gutters Need Cleaning

Gutters need cleaning

Damaged Downspout

Damaged downspout

Gutter_missing_end_cap

This gutter is missing the end cap at the end of the gutter.

Skylight Inspection:

sky_light_3

 

Skylights add light and beauty to the home but are subject to leaks and other problems. We recommend you look closely around the exterior perimeter of the skylight for heavy caulking that may have been installed because of water leaks.

Common chimney problems:

Many homes in the United States use fireplaces as their primary or secondary heat source. It is very important that such items as flues and chimneys operate properly and are inspected / cleaned on a regular basis depending on the usage. Every fireplace, and every fossil fuel burning appliance for that matter, must have a separate chimney flu. The exception is that a heating plant or water heater can use the same flu. The water heater flu stove pipe enters above the flu of the heating plant.

  1. Chimney Height: Chimneys must extend 2 feet higher than any portion of the roof or any structure within 10 feet, but must be less than 3 feet above the point where the chimney passes thru the roof.
  2. Brick Chimneys: Chimneys that are one brick thick without a flu liner are a fire hazard. A two brick chimney without a flu liner is acceptable as long the chimney is in good condition. Metal flue for gas appliances should always have caps. We recommend adding metal caps over tiles chimney liners to keep animals and birds from nesting.
  3. Chimney Crack: It is always very important to look on the brick of the chimney/fireplace for a crack that runs in a straight line up three four layers of brick. This is sometimes the cause of a past possible chimney fire. We always recommend having your chimney / fireplace liner cleaned and inspected by a professional before purchasing the home. This cleaning can save you hundreds or thousands of dollars.
  4. Chimney Crowns: Chimney crowns are very important to have installed on a chimney to prevent water seepage inside the bricks and the subsequent damage this causes. Chimney crowns come in both metal and concrete.
  5. Spalling Bricks: Spalling occurs when water gets into the bricks and freezes. This causes the surface of the brick to fall off. This generally happens because the chimney cap is failing.
  6. Tuck Pointing: Tuck pointing is the process of repairing mortar that is falling from between the bricks.

Chimney Inspection:

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Chimney flashing inspection:

Having your chimney properly flashed is extremely important since chimney leaks are one of the most prevalent water leak problems found in homes today.

Chimney flashing 1

Properly installed chimney flashing

Chimney flashing 2

Properly installed chimney flashing

i211

Properly installed chimney flashing

View common problems with chimney flashing:

 

Bad Chimney Flashing

The chimney has been heavily tarred due to not being properly flashed.

Bad Chimney Flashing

This excessive amount of tar indicates past water leaks around the chimney.

Bad chimney flashing

This chimney flashing was improperly installed using wood instead of metal flashing

Bad Chimney Flashing

Metal step flashing is loose and should be repaired

Bad Chimney Flashing

Heavily tarred chimney flashing is very common but is not the proper way to install flashing.

Bad Chimney Flashing

Metal counter flashing was properly installed, but the heavy caulked flashing still indicates a possible leak

chimney_flashing

This chimney flashing looks great when you are standing on the ground but you get up close you realize that the metal flashing is nothing more that Ice and water shield. Yes it is working but it will not last for long.

chimney_flashiing

This chimney flashing was not properly installed. We would recommend to have this re-flashed by a licensed contractor.

i188

This chimney flashing was installed properly but as regular maintenance it will need to be caulked at the top of the flashing.

 

Rubber plumbing roof boot flashing inspection

Rubber plumbing boot flashing is a very inexpensive product that can cause severe leaks inside the home if not properly maintained.

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