The draught marks on carpet and rugs are caused by what is known as filtration soiling and are mostly visible along the edges of the affected item. At first, you might think that you are dealing with some sort of mildew but this is not exactly what is going on.
Note that the affected areas are mostly around the walls, near air vents, or near the doors. This suggests that the issue at hand has something to do with the ventilation of the room.
Here we will explain exactly what causes the dark spots and share with you how to effectively clean the dirty carpet edges.
Here is what causes the black lines at the edge of your carpet
The issue is known as filtration soiling, a problem that comes from an imbalance in the ventilation of the space. The rate at which air leaves the room is lower than the rate of which it enters. When this happens, some of the escaping airflow is forced to go through the available alternative routes such as the small spaces under closed doors and between floor boards. When the air passes through the carpeting, it is being filtered by the fabric. The piece begins to accumulate pollutants and the black marks become visible with time.
How to clean dark carpet edges
These spots are actually quite difficult to remove and vacuum cleaning alone won’t do the trick. The dirt has settled deep between the fibres and it needs to be dislodged with water and forceful scrubbing.
Here is how to deep clean the dirty carpet edges:
- Agitate the pile of carpet with a hard-bristle brush or a pull scraper.
- Place the crevice tool on your vacuum cleaner hose and run it along the affected area.
- Dip a white rag in warm water and vigorously scrub the black marks.
- If the spots are still there, then you’ll have to resort to some detergent.
- You can get a commercial carpet shampoo from a local store or prepare your own solution of mixing white vinegar, lukewarm water and a bit of liquid soap.
- Apply your chosen cleaning solution on the remaining dark spots and scrub them away with a hard brush.
- Use wet white rags to wipe away the foam and loosened dirt.
How to prevent filtration soiling in a room
These tactics range from free to generally cheap and should be easy to incorporate within your household or place of business. Follow the steps below to prevent or at least reduce the filtration soiling of your carpets:
- Reduce air pollutants – Eliminate any factors that contribute to the pollution of the air in the space. These are processes that include a form of burning, combustion, evaporation, and/or dispersion. The most common examples are indoor smoking, cooking, humidifiers, and usage of air fresheners.
- Minimise dust accumulation – Remove (or at least reduce) items from the room made out of cloth and other fabrics that shed particles. These might include fabric curtains, lace doilies, plush toys, and a wide variety of upholstered items.
- Ease the ventilation – Keep the door/s of the room widely open as much as possible throughout the day. If possible, air out the space by opening the windows occasionally. This will even out the indoor temperature a little bit which is also helpful.
- Block the gaps – Identify the air escape routes in the room that contribute to the problem and block them as tight as possible. For example, the space between the baseboard trim and the carpeting can be filled with an expandable foam sealant.
- Clean the ducts – With time, air ducts accumulate serious amounts of dust and other unsanitary agents that affect the quality of indoor air. Therefore, have your ducts inspected and cleaned thoroughly on a regular basis that meets the needs of your living space or commercial facility.
Our deep carpeting cleaning also does the trick
If you have the time and are willing to put in the manual work, then you can solve this problem on your own. But keep in mind that we can lend you a helping hand, especially if it’s high time to give your carpeting a comprehensive wash. We perform professional hot water extraction that quickly dissolves the accumulated grime and removes it almost immediately along with 95% of the moisture. In addition, we can treat your carpets and rugs with stain protection product to prolong the result.
Please note that you need to solve the ventilation problem of the room. Otherwise, the dark spots will appear once again.
Okay, now you know what causes these dark lines on your carpet’s edges. Has this guide been helpful to you? Let us know in the comment section!