It was serviced previously by his oil co.
Stains on roof near chimney.
A properly installed chimney cricket will direct water and debris around the chimney and off the roof.
White stains on slate roofs efflorescence or salt stains from rain water sometimes appear on slate shingles.
Sometimes roof stains around chimneys are indeed from ingredients in the exhaust from the chimney particularly sulfates.
This is a matter of shingle composition.
You can see examples of rust stains in the photos and article above.
Flue stains i have a costomer that has a valiant boiler with riello burner and was getting stained roof shingles beige to a rust type color around his 30 foot metalbestos chimney.
He had a soot up so they cleaned it and gave the burner more air lower co2 i was called in and noticed they.
Most often red roof stains around or below metal components or chimneys are rust easily tracked to corroded metal components.
Needs a cricket or saddle basically a small roof built behind the chimney.
Black stains around chimneys are caused by creosote from fireplace flues washing down onto the roof.
If you notice water stains on the ceiling near a fireplace and the roofing isn t damaged there s a good chance the chimney flashing needs attention.
Any chimney wider than 30 in.
The area can be cleaned and treated with oxalic acid to prevent rust.
Defy wood stains are designed to protect your wood from damaging uv rays and the elements and add years of life to your wood.
Chimneyrx products are easy to use chimney repair products designed for do it yourself ers that need to fix minor chimney water leak problems.
Rust or chimney soot stains red or brown rust stains around chimneys is a common roof stain.
Chimney roof leaks are usually caused by gaps or cracks between the metal flashing used to join the chimney to the roof and the chimney.
If your chimney doesn t have one watch for holes rusting through the flashing.
Leaks around fireplace chimneys are common and can be hard to identify the source.
Applying roofing cement to gaps between metal flashing and the chimney.
These stains are typically located below and in line with the chimney.