I could see visible mold growth on all the roof sheathing and gable end sheathing as well as smaller amounts of mold on the rafters.
Roof sheathingafter 3 years mold.
Every 2 years after 15 years.
Clay and concrete tiles.
Metal roofs and composite shingles.
Systemic or limited growth.
In another home the owner had been in residence for over 10 years.
Because wood is porous it may be difficult to remove the mold stains from sheathing but you can kill the mold by cleaning the sheathing with bleach and water.
Roof leaks cause two types of mold growth.
Mold growth provided it is not just cosmetic mold which can simply be left alone can be cleaned from wood surfaces by blasting scrubbing or even simple surface wiping depending on the surface accessibility and.
It also seems like it gets dirty really quickly.
Generally tearing off a roof and roof sheathing and perhaps roof framing to remove mold would not be sensible nor cost justified.
Yearly once the roof is 5 years old.
The truth is a 30 year shingle will not really last 30 years.
In the vast majority of cases the mold growth is caused by condensation.
That s one of the big misconceptions in the roofing marketplace.
In this case the moisture buildup is indirect the roof leak only affects a small area but the dampness in the air causes.
You know what i m talking about.
When a major storm is coming document the roof s condition before and after.
The expected service life of a 30 year product if properly cared for is approximately 25 years.
Your roof is important to the integrity of your home.
Learn the signs of mold infestation on our blog.
He called me because while he was having some windows replaced the installer had looked into the attic and found mold on the plywood sheathing.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Combine 1 2 cup chlorine bleach with.
Mold infestation can wreak havoc on your roof attic and home and pose health risks.
If it s not cared for properly that 30 year shingle will only last 12 to 15 years.
Systemic growth occurs when the roof leak causes enough moisture buildup in the attic to cause mold growth throughout the entire area.
Every 2 3 years after they are 10 years old.
Wood shingles and shakes.
What does attic mold growth from a roof leak typically look like.
This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.