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.
Stains on roof near chimney.
White stains on slate roofs efflorescence or salt stains from rain water sometimes appear on slate shingles.
Black stains around chimneys are caused by creosote from fireplace flues washing down onto the roof.
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.
Dark black stains can also be caused by extractive bleeding.
He had a soot up so they cleaned it and gave the burner more air lower co2 i was called in and noticed they.
Rust or chimney soot stains red or brown rust stains around chimneys is a common roof stain.
Applying roofing cement to gaps between metal flashing and the chimney.
Any chimney wider than 30 in.
Chimneyrx products are easy to use chimney repair products designed for do it yourself ers that need to fix minor chimney water leak problems.
These stains are typically located below and in line with the chimney.
If your chimney doesn t have one watch for holes rusting through the flashing.
Defy wood stains are designed to protect your wood from damaging uv rays and the elements and add years of life to your wood.
Sometimes roof stains around chimneys are indeed from ingredients in the exhaust from the chimney particularly sulfates.
How to fix a leaky roof by a chimney.
The area can be cleaned and treated with oxalic acid to prevent rust.
It was serviced previously by his oil co.
You can see examples of rust stains in the photos and article above.
Needs a cricket or saddle basically a small roof built behind the chimney.
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.
A properly installed chimney cricket will direct water and debris around the chimney and off the roof.
Most often red roof stains around or below metal components or chimneys are rust easily tracked to corroded metal components.