Tag Archives: Lichen

What are those ugly stains on my roof? Can I get rid of them without replacing my roof?

What are those ugly stains on my roof?  Can I get rid of them without replacing my roof?

Yes!  All you need is Roof Shampoo!

Most roof stains are caused by the growth of one of the following organisms:

  1. Algae, which can harbor a number of molds
  2. Lichen Colonies, which are a fungus or
  3. Moss, which can keep your roof from drying normally.

These organisms feed on the organic material frequently found in the mineral-based granules that make up roofing shingles, mainly limestone.  This organic matter is the is the food source for these roof-staining organisms.  THESE ORGANISMS ARE LITERALLY EATING YOUR ROOF.  This means that these stains are more than just unsightly, they can really damage the materials that make up your roof.  The portions of the roof that receive the least amount of sunlight are more likely to have algae, lichen colonies or moss growth.  This explains why some homes may have roof stains only on one side of the roof, typically the northern and/or western exposure or in heavily shaded areas.

Jersey Roof Cleaners has been cleaning roofs for over ten years. We use a proprietary product called Roof Shampoo. The chemical we use is Eco-Friendly and will not damage your grass or any of your costly landscaping. We also guarantee that you won’t have to worry about these pesky organisms or ugly stains for years. “lf the stains stay you don’t pay!” Why pay for a result that is less than perfect? We guarantee all staining will be removed during your Roof Shampoo. The entire process takes just a few hours and you will have a sparkling clean roof by the time we leave.
Algae is a living organism that thrives on dust, pollen, and the organic materials that make up your roof. Dampness triggers its growth. Stains are usually more prominent on northern and western exposures and heavily shaded areas. Algae grows on, under and behind the tiny granules that cover the shingles and can harbor a number of molds. This results in unsightly stains and streaks on the roof. Roofs with algae stains absorb heat rather than reflect it, resulting in a super-heated attic and higher home cooling costs as well as reducing the natural life span of the shingles.
Lichens are a fungus, usually of the class Ascomycetes, that grow symbiotically with algae resulting in a composite organism that characteristically forms a crust-like or branching growth on shingle granules. Lichens put out root-like tentacles that penetrate deep into the shingle’s organic oil base for nourishment, eventually ruining them by creating dark spots and/or pock marks where they grow.
Moss typically starts to grow at the top of the vertical slots between the shingles. These areas of asphalt shingles are the last place water evaporates from your roof. Thick moss growth, with its shallow root system, keeps the roofing materials damp for extended periods of time. This moisture promotes wood rot, which causes damage to the decking underneath your shingles, and causes accelerated erosion of the shingles. Moss, like lichen colonies, is quite damaging to shingles and some of the granules underneath the moss may already be gone as a result of the organism. This can shorten the natural life expectancy of your roof.

Call Jersey Roof Cleaners Today!

(973)599-0811