What are Dark Streaks on Siding and How to Prevent Dark Streaks
Even a well-kept house may appear to be old and not well-kept when dark streaks run down the exterior of the home. These are black or dark green stains that are usually observed on the siding more especially on areas that are more humid, rainy or shaded. Although these marks are often attributed to be nothing more than dirt by most of the homeowners, they are usually caused by biological growth and accumulation of the environment. It is possible to know the reasons behind dark streaks to enable the homeowners to preserve the beauty of their siding and avoid any exterior damage in the long term.
Algae Growth on Siding
The algae causes the dark streaks on siding one of the most common. Algae spores move via the air and readily land on surfaces of the exterior. These spores are able to rapidly multiply and spread on siding material in the presence of moisture on the vinyl, wood, and fiber cement. Algae is normally presented in a streak form, which is vertical, and denotes downward siding panels in black or dark green. These marks are usually more pronounced when it is raining or in wet climates whereby surfaces take longer time before they dry. When algae is formed, it only grows unless the surface is washed and moisture conditions are minimized.
Shade and Limited Sunlight
Areas in a house that do not receive a lot of sunlight directly are much more prone to the formation of streaking. The sun is a natural drying factor and it will keep exterior surfaces dry so that there is no accumulation of moisture to promote the growth of algae and mildew. Houses with high trees or other buildings can have their walls constantly in the shade. When siding is kept wet over long periods, it would make a perfect habitat of algae growth and staining. The probability of the development of dark streaks can be minimized by trimming down branches of trees and letting more sunlight hit the siding surfaces. Routine inspections from an experienced gutter cleaner near Pittsburgh PA can also identify early drainage problems before they affect exterior surfaces.
Organs of the Body and Air Pollution
Leaves, pollen, dirt and dust Organic materials may collect on the roofs and siding. The rainwater that drops on these surfaces takes debris down the siding. With time, this accumulation may leave traces or give nutrients that may promote algae development.
Hydraulic Retention and Drainage Problems
The most important factor of most siding discoloration issues is moisture. When the water often flows down the siding or is stuck in the shadowy spots, then there are higher chances of algae and mildew growing. Problems with drainage, e.g. blocked gutters, improper roof drainage, or landscaping that directs water into exterior walls may also be causes of excessive moisture. With time, this exposure to water may result in streaking that may be observed on the siding panels. This is necessary in keeping the siding free of long term staining because of maintaining proper drainage of the area surrounding the house.
The Duty of Roof Runoff and Gutters
Roof runoff may aggravate the situation although algae is the most common cause of dark streaks. The rainwater that moves over a roof may collect residual asphalt, dirt, and organic substances and move into the gutter system. It can also overflow over the edge and the dirty runoff can drip down the siding when the gutters clog or overflow. This is able to cause visible streaks and contribute to the growth of algae with nutrients. Early signs of drainage issues that can cause siding stains can also be detected by the regular inspection of a qualified gutter cleaner around Pittsburgh PA.
Eradication of Existing Dark Streaks
In case of streaks already formed, they can generally be removed by appropriate exterior cleaning techniques. With specialized siding cleaner, it is possible to dissolve the algae and organic dirt, leaving the surface intact. The methods of soft washing are frequently desired, rather than the high-pressure washing, which can force water behind the siding panels or damage the finishes. It is also important to address the underlying causes of the streaks like shade, debris or the drainage problems to ensure the streaks do not recur.
Siding Preventative Maintenance
To maintain a streak-free and clean siding, the exterior must be maintained regularly. There are common prevention measures that may go a long way in minimizing the likelihood of the formation of dark streaks.
Assistive maintenance practices are:
- Periodically washing siding to take off algae and debts.
- Cutting down trees and plants to maximize the amount of sunlight.
- Eliminating leaf and debris off of roofs and gutters.
- Having good drainage in the area of the foundation of the home.
- Arranging gutters servicing and cleaning as required.
Having an old hand at gutter cleaning around the Pittsburgh PA area can be of some assistance in ensuring that the water does not flow in the direction of siding material and does not add to its staining.
Conclusion
Dark streaks on siding is a problem that occurs generally due to the growth of algae, surplus water, organic matter, and shaded environment. Although the occurrence of these stains might not manifest immediately, they can easily transform the general look of a house when not addressed. The main trick here is to maintain the conditions that promote the growth of algae, namely, moisture and debris accumulation. It can be greatly decreased by regular exterior cleaning, enhanced sunlight exposure, and proper drainage, thus lowering the chances of the creation of stains.