While black stains on roofs are a cosmetic issue, moss growth is more than just cosmetic. Not only does moss look terrible on roofs, it will also shorten the life of the roof covering and possibly lead to roof leaks. Whether you have wood or asphalt shingles, moss can grow on the roof if it doesn't dry properly.
Install Copper Strip on Roof You can install a inch-wide thin copper strip on a new roof so an inch of the copper strip rests under the cap shingles and the copper folds under the last full shingle on the roof. Copyright Tim Carter. Click on the sketch to purchase copper roof strips for your roof.
Here are the recommended roof installation procedures for Zinc Strips. Then we will explain our experience with copper, zinc strips. The rain water runs over the Zinc Strip, zinc should run down the roof and works at trying to kill mold, moss, lichen, and fungus on the roof.
Log in or Sign up. It's covered in "architectural" asphalt shingles. The shady sides the Northern sides are beginning to show black streaks -- which from what I understand is a type of algae.
An asphalt shingle roof will last for many decades if you install copper roof strips up on the ridge and down any hips. Tim Carter was the first person in the world to discover that copper ions washing off a copper strip prevent asphalt from oxidizing. Oxygen that bonds to asphalt up on your roof causes the asphalt molecules to cross link.
It's got ugly black streaks that look like someone poured used motor oil on my roof. What is causing the problem? Are the shingles defective?
In late I noticed discoloration on my 4-year old shingle roof in Florida. The area affected was in the shade of trees most of the day. I did some research online and discovered that black algae and moss tend to grow on shaded and damp areas of the roof.
Angie's List Answers is the trusted spot to ask home improvement and health questions and get answers from service companies, health providers and consumers. For ratings and reviews on companies in your area, search Angie's List. Absolutely - you can easily do yourself if you are not afraid of roofs - just be sure to tuck the nails up under the edge of the top row of shingles not the ridge shingles - they break too easy, though fine to put there during a reroofand hit the nail heads with a dab of bitumastic roof caulk to ensure they don't leak.
Moss grows on bark, rocks, soil and any location where conditions are shaded and moist, including your roof. It's usually yellow, green or greenish brown in color, and may grow in the form of small tufts or large mats. Moss creates streaks of green staining over your roof, which is unappealing. Installing strips of copper flashing helps prohibit its growth.