Instead there are tack strips to hold the carpet in place.
Dirt around carpet edge.
As the air passes through the edge of the carpet pile this microscopic soiling is deposited there hence the term filtration soiling.
As air gets sucked through gaps in the floorboards and baseboards tiny dust particles can get lodged in the carpeting around the edges of the room and create noticeable black lines.
You may need to use detergent for more persistent stains.
You might have tried to remove these black or gray stains with vigorous vacuuming and spot treatments to find they just won t go away or if you get the stains to fade they keep reappearing.
Thick carpet padding covers most of the floor but there usually isn t padding at the edges.
What causes black lines along the edge of your carpet.
If you have noticed your carpet turning black or gray along the walls or doors you may have a problem called filtration spoiling.
There are several reasons filtration soiling occurs on the carpet around the perimeter of the room.
Filtration soiling occurs as a result of air being forced into the room or space at a higher rate than it can escape from the same area via the ventilation system.
But you may have noticed that your carpet gets especially dirty sometimes even black along the walls and corners of the room.
Dark dirt marks around the edges of your carpet are caused by an issue called filtration soiling.
Filtration soiling occurs when there is an imbalance in the air ventilation of the room.
Air moves across the floor and as a result dirt dust and contaminants accumulate near the wall.
Why is the carpet so dirty around the edges.
This is how keech clean removes the black lines from around the edge of your carpet.
Air can seep around the tack strips better.
Cleaning your carpet by the skirting boards also called baseboards is fairly easy if you have a crevice attachment for your vacuum cleaner and a scrub brush.
Forced air furnaces push air dust and dirt contaminates through the house especially if the filter is dirty.
To clean up these stains you need water and vigorous scrubbing.
February 7 2017 you understand why carpet accumulates dirt and grime in the middle of the room you track in mud and dirt from outside on your shoes.
Dirty carpet edges can be really annoying and may even trigger an allergy flare up because of trapped dust.