Citra-Shield™ is a no-rinse, patent-pending, eco-friendly cleaner and preventative that is safe and effective for removing stains caused by mold, mildew, algae, lichen and moss stains from exterior surfaces. Citra-Shield™ cleans without the use of hazardous chemicals or the damaging effects of pressure washing and/or brushing.

  • Removes stains caused by mold, mildew, algae, lichen and moss
  • No rinsing required – (eliminates pressure washing)
  • Eliminates walking on tile roofs!
  • Works on roofs, siding, brick, stucco, stone and other exterior surfaces
  • Contains a patent-pending, time released formula
  • Environmentally safe – biodegradable, non-corrosive in diluted form
  • Safe & effective
  • No bleach, chlorine, acid, sodium hydroxide or phosphates


Your Old Roof Will Look Like New in No Time!

A New Cleaning Process That Protects Your Roof and Extends its Life!

half-half-roofEver notice those black or green stains and streaks that seem to run down the length of your roof? Guess what? It’s not dirt…it’s ALIVE! Algae, moss, fungus, lichen and other plant life which have taken root in your roof. Over time, these nasty organisms will break down the shingles on your roof, causing problems with leaks and moisture penetration of the sub-roof. It’s important to catch these invasive parasites early so that you prevent roof damage BEFORE IT HAPPENS!

Periodically cleaning your roof is a great way to remove the invaders and maintain the longevity of your shingles and roof deck. But how? High-pressure washings can damage shingles and only remove organisms at the surface; hidden algae and fungus can continue to grow and re-emerge. Chlorine bleach treatments don’t loosen plant roots and can actually dry out your shingles. And do you really want to risk your neck and your roof by climbing up on your roof top and attempting to clean it yourself?
Most roof stains are the result of algae or fungus living among the tiny granules that cover your shingles. These organisms thrive in damp shaded areas and feed on dust, pollen and other organic materials found in shingles.
There is a fast, easy and effective way to remove these invasive growths and restore your roof to its original, stain-free appearance: Citra-Shield™

Roof Algaes & Mosses Cause Roof Leaks

Roof Leaks Due to Algae:

roof-leakingBlack streaks on your roof means that Gloeocapsa Magma (Roof Algae) has invaded your shingles. This is an air borne algae that feeds on the limestone used to add weight to your shingles. As the algae munches down on the limestone it loosens the granules of your shingles and causes them to leak. If caught early, preventative maintenance can add years of life to your roof.

Roof Leaks Due to Moss:

moss-on-roofIn shady areas of your roof you may find spots of moss growing. As the moss grows, it pushes its roots down into your roofing shingle. The moss will retain water like a sponge when it rains and pass that moisture directly through its roots to your sub-roofing. This will add sub-roofing costs to your overall bill when replacing your roof, which can be expensive!

Roof Leaks Due to Lichens:

lichen-on-roofSimilar to moss, lichens are about the size of a silver dollar and shoot their roots down into your shingles. However, they are ten times more destructive and if not taken care of quickly will mean you’ll be looking to replace your roof before you know it. Never power wash moss or lichen as the roots will rip out shingle granules, always kill the lichen prior to removal.

Problems With Traditional Cleaning Methods

High Pressure Washing

  • Degrades and damages many surfaces
  • Many inexperienced users/companies
  • Granular loss – voids roof warranties and reduces shingle life
  • Broken and cracked roof tiles removes the factory glaze
  • Must walk on the roof
  • Damaged membrane
  • Damages landscaping
  • No guarantees or warranties
  • Temporary solution
  • Water spawns mildew growth

Problems With Competitive Cleaning Products

Bleach and chlorine based products

  • Does not penetrate root structure
  • Masks problem – removes color/pigment but not all microscopic spores
  • Temporary solution – Only kills 70% of spores
  • Corrosive, toxic
  • Can damage people, vehicles, landscaping, structures.
  • Dries out shingles; causes nails to rust.
  • Bleaches tile color

Sodium hydroxide based cleaners

  • Highly caustic, corrosive & toxic (Lye based)
  • (Example. Liquid Drano)
  • Masks problem – removes color/pigment but not all microscopic spores
  • Very hard to rinse
  • Temporary solution
  • Can damage vehicles, people, landscaping, structures. Can stain roofs!

Summary – Why Citra-Shield™?

  • why-citrashield-cleaningRoof Algae Growing Problem – Most of North America has a climate conducive for algae, mildew and moss growth
  • Algae, like most plants, have a root system that embeds itself into surfaces
  • Citra-Shield™ removes stains caused by mold, mildew, algae, and moss
  • Citra-Shield™ works on roofs, siding, brick, stucco, stone and other exterior surfaces
  • Citra-Shield™ is Easy To Use – No rinsing required so eliminates pressure washing & walking on tile roofs
  • Citra-Shield™ Prevents Problems – Gets down to the root of the algae helping to prevent future growth and can also be periodically applied to a clean surface to prevent biological stains from returning
  • Citra-Shield™ is eco-friendly, environmentally safe and biodegradable
  • Citra-Shield™ is non-corrosive in diluted form and has no harmful ingredients such as bleach, phosphates, lye, heavy metals, sodium hydroxide or acid
  • Citra-Shield™ contains a patent-pending, time released formula