When rain water comes in contact with Shingle Shield Roof Protector, a fungistat and effective drying agent is released, zinc oxide. This agent is meant to inhibit the growth of algae, fungus, or moss – not kill it.

For pre-existing conditions we recommend Shingle Shield Roof Cleaner, which is specifically designed to clean roofs prior to application of the roof protector strips. Other cleaning solutions may not be effective against these organisms, and may harm your roof or plants.

No. Shingle Shield will quickly weather to a pewter gray. In addition, since only 2" of it are exposed it is difficult to see from the ground. Remember, the alternative is an unsightly, badly stained roof.

No. If we were to apply color to Shingle Shield it would be unable to release zinc oxide – the active ingredient that protects your roof.

Based on the thickness of the zinc that is Shingle Shield, it is reasonable to assume that it will remain effective in excess of 20 years. Climate may also be a factor in this estimate.

No. The zinc oxide it releases is microscopic and absorbed by the shingles. It is possible, although unlikely, that the attachment nails will leave rust stains. We recommend the use of quality, double hot-dipped galvanized roofing nails, such as Maze? brand.

Use a mild solution of chlorine bleach and water or mild detergent gently applied with a sponge or hand-held sprayer and rinse thoroughly. Do not use a power washer or high concentrations of bleach, and do not scrub the shingle surface. The Asphalt Roofing Manufacturers Association also offers cleaning recommendations.

Moss is not fungus. Moss is the green spongy stuff that grows on the south side of trees and on the ground in shaded, damp areas. And, in some areas it also grows on roof membranes and shingles. Mosses reproduce via airborne spores. If a roof is covered with moist organic matter or soil, and if there are minerals and fixed nitrogen present in the dirt on the roof, mosses can grow from the spores that are carried there.

In some moist areas, algae can grow on shingles. Although the algae has no proven effect on shingle life, it does stain or discolor the shingle. Commonly called fungus, this algae staining can be unattractive. The algae-containing stains can be dramatically reduced by the use of special copper granules.

In most cases, one row at or near the ridge line will be sufficient to inhibit the growth of fungus, moss or algae. On roof slopes longer than 20’, or roofs with a severe or persistent problem, install a second row halfway down the roof. While we cannot readily endorse any other installation method, you may be able to attach Shingle Shield by using a roof mastic (adhesive).

Shingle Shield is EPA approved and should be used as directed in a manner consistent with the provided instructions, and as such is considered safe. Zinc is an essential element of the human body. It can be found in vitamins, and as an additive in breakfast cereals.

Yes. But be cautioned that Shingle Shield is designed specifically for use with three tab shingles. The installer assumes complete responsibility as to how to attach the product to a wood roof. The primary objective is to have rain water run over Shingle Shield, then onto the areas affected by fungus, moss, or algae.

This is a question about dissimilar metals corrosion. Zinc and aluminum are adjacent on the electro-chemical scale. The farther apart metals are on the scale the greater the likelihood that they will have an affect on one another. The fact that zinc and aluminum are so close indicates that there would be little problem, even if they were to come in direct contact with one another on the roof, which they should not.

Once you have cleaned your roof, Shingle Shield Roof Protector zinc strips should be installed to inhibit the return of algae, fungus, or moss. Stains caused by pollution, pine pollen, dirt, etc., will need to be re-cleaned as deemed necessary to maintain your roof’s neat appearance.

JPJ’s synthetic rock is not porous like other synthetic rock systems or real rock so moss or algae cannot stain or establish a strong foothold. The product contains a thermo plastic sealer that prevents moss and algae growth.

Yes. Shingle Shield Roof & Deck Cleaner effectively cleans away stains of algae, fungus, molds, mildew, dirt, pollution, pine pollen, berries, etc. Since it contains no bleach, it will restore the natural color to the wood. Wood shingles get slippery when wet, however, so wait until they are completely dry before walking on them.

When properly mixed and applied according to the label directions, it will not hurt your plants. As a precaution, it is wise to rinse any overspray off of your plants to avoid spotting.

Absolutely! Shingle Shield Roof & Deck Cleaner is the perfect solution to restoring the appearance of wood decks, gazebos, fencing, or porches. It will not lighten the wood’s color (including cedar and redwood) because it contains no bleach. It is also ideal for cleaning most non-oil type stains from concrete driveways and sidewalks. Properly follow all directions on the label.

In the right circumstances moss and fungi will grow on any surface. The key here is to avoid an accumulation of surface debris or puddling. Carry out routine sweeping and hosing down of your Maine Deck? to avoid these issues.