Treating walls from mold before gluing wallpaper: step-by-step instructions

Having to deal with mold on your walls can be very annoying, particularly if you’re getting ready to hang new wallpaper. In addition to ruining the look of your walls, mold can be dangerous to your health, so it’s important to take care of it properly before continuing with your wallpaper project.

This post will walk you through a simple, step-by-step mold removal process that will leave your walls safe, clean, and ready for wallpaper. You can shield your house and your health from mold growth by taking the precautions listed here.

The secret is to be thorough and patient, regardless of the size of the mold problem you’re trying to solve. If you take the proper steps, you can have gorgeous, mold-free walls beneath your new wallpaper and long-lasting results.

Causes of mold and its types

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In order to remove mold from an apartment, you must first identify the cause of the growth. Fungi are everywhere, but their mold spores don’t grow until they come into contact with an environment that is conducive to their development.

Causes of the growth of mold:

  • Volume problems in ventilation systems. The fungus actively develops in places of stagnant air, so if the ventilation circulates incorrectly, then over time this will lead to the formation of pathogenic microorganisms on the walls.
  • Sewer leak.
  • Violations of construction technology. When laying the foundation, workers must necessarily treat it with a water-repellent composition, otherwise water will penetrate inside, which will lead to the development of mold.
  • Condensation. In this case, we are talking about the installation of low-quality windows that do not have ventilation.
  • Moisture penetration into the apartment. This reason is relevant for apartments located on the first and last floors of the building.

Types of mold

Different kinds of mold grow on different types of building materials. Most frequently found in an apartment are the following:

  • Black mold. Affects any surface: wallpaper, paint, wood, concrete and plaster. This is the most dangerous type, so it is important to know how to treat a wall from black mold before gluing wallpaper.
  • Gray mold. Appears on surfaces made of plastic, wood, stone, paper, and also affects textile materials.
  • Gray-brown mold of decay. Appears in the form of spots on interior items made of wood.
  • Blue mold. Another main enemy of wood, which gives it a blue tint.
  • Green mold. Appears on surfaces made of stone and brick.

How to make antifungal agents with your own hands

Some owners would rather treat the walls with homemade antifungal agents before applying wallpaper adhesive because they don’t trust commercial products. Since common household items are almost always used in their preparation, folk remedies are both affordable and effective.

There are numerous folk remedies for fighting fungus. Some work well even when there is a small amount of mold present, and some work well against extensive damage. You should learn how to remove the wallpaper from an apartment wall that has mold on it.

Whiteness

Whiteness helps you get rid of nearly every kind of fungus. In order to create an emulsion, combine it with water at a 1:10 ratio.

Tea tree oil

To make the composition, combine 10 drops with 500 milliliters of water, transfer to a spray bottle, and shake to ensure all the ingredients are well combined. After applying the solution, the affected area is left alone until it is fully absorbed.

Baking soda

To get the answer ready After mixing 1 hour’s worth of soda with a glass of water, the mold-affected area is sprayed with the mixture. Until the soda solution is fully absorbed, it is left.

Hydrogen peroxide

Utilize the product unadulterated. They mist the pathogen-affected area before leaving until all of the microorganisms have been absorbed.

Vinegar

Moldy surfaces are sprayed with vinegar and allowed to sit for an hour to eliminate the fungus. Rinsing it off the wall is not necessary, but the room needs to be ventilated after the procedure.

Ammonia

Pathogenic microorganisms can be removed from hard, non-rowing surfaces using ammonia. It is applied to the affected area and left for several hours before being washed in a 1:1 ratio mixture of water.

Copper sulfate

The afflicted area must first be cleaned with a soap solution, and only then should copper sulfate be applied to the surface. You can repeat the process up to three times if the desired outcome is not obtained on the first attempt.

Special tools

The special products that are offered for sale can be categorized into two categories:

  • For mineral surfaces.
  • For wooden surfaces.

When selecting such products, you should speak with an expert who can help identify the type of fungus and recommend a medication that works well.

Primers for mineral surfaces

Before gluing the wallpaper, or at the very beginning of finishing, the primer needs to be applied. The mixture will aid in preventing the growth of mold.

The top mineral surface primers are:

  • Milkill. For one square meter for one layer, 250 g. of the product is consumed. A total of 2-3 layers will be required.
  • Acryl Grundierung. To process 15 sq. m. you will need a liter of the product.
  • Shimmelstopp Dufa. This is one of the means that you can add to wallpaper glue from mold, as well as to plaster. One package of the preparation is enough for 25 kg of plaster and 10 liters of water-based paint. Before applying to the wall, all components are thoroughly mixed.
  • Mixonit gr43. The product is added to dry construction mixtures. Suitable only for surfaces that absorb moisture well. Penetrates inside by 10 cm, but for work you will need to apply 1-2 layers.

Antifungal agents for wood

Wood is more vulnerable than other finishing materials to the negative effects of fungus. Because of this, when working with wood, extra care should be taken to ensure that mold is destroyed.

  • Baramon c30. The preparation is diluted with water in a ratio of 1:6 and is used only for treating impregnated types of wood. The composition dries within 2 days, but during this time water should not get on the surface.
  • Pinotex Base. The product is used in its pure form. To process 1 sq. m. you will need 4-8 liters. of the product.

Wooden coverings will quickly deteriorate if anti-fungal agents are not applied before finishing.

It is imperative to treat your walls for mold before applying wallpaper adhesive in order to avoid future problems and guarantee a smooth, durable finish. This article offers a simple, step-by-step method for locating, eliminating, and treating mold so that your freshly applied wallpaper sticks correctly and doesn’t get damaged. You can make your space healthier and preserve the aesthetic appeal of your walls for many years to come by following these steps.

Is it necessary to treat the walls from fungus before renovation

When asked if treating walls against fungus is necessary before beginning repair work, many experts respond in the affirmative. The likelihood of infection is higher in rooms with ideal conditions for mold growth, which contradicts this opinion.

Only after treating the walls to prevent mold growth is wallpapering permitted.

Surface treatment

The purpose of treating the walls is to apply specialized compounds with antiseptic and antifungal properties to the surfaces before adhering finishing materials. There are three steps in the proper process:

  1. Preparing the surface and eliminating the infected area.
  2. Application of the preparation.
  3. Drying the walls.

With the use of a paintbrush, sponge, or roller, the mixture is applied to the wall. The entire surface is treated, but baseboards and corners receive extra care because that’s where colonies can hide and need to be eliminated.

How much time is needed for the surface to dry completely

The type of composition, the material of the wall, and the weather all affect drying times. The surfaces typically dry completely in 1-4 days. But it’s crucial to get rid of any remaining moisture, which is why drying the walls would be a great choice.

Although it is advised to apply the treatment two or three times, each layer may be reapplied once the preceding one has dried.

Step Description
1. Identify the mold Examine the walls to locate any visible mold spots. Mold usually appears as black, green, or white patches.
2. Protect the area Wear gloves and a mask, and cover the floor with plastic sheets to protect it from mold and cleaning solutions.
3. Clean the surface Mix water and mild detergent or use a commercial mold cleaner. Scrub the moldy areas with a brush to remove the mold.
4. Apply a mold killer Use a solution of bleach and water (1:3 ratio) or a specialized mold remover. Apply it to the affected areas and let it sit for at least 15 minutes.
5. Rinse and dry Rinse the treated area with clean water and dry it thoroughly with a towel. Make sure the wall is completely dry before proceeding.
6. Apply a mold-resistant primer Once the wall is dry, apply a mold-resistant primer to prevent future mold growth. Let it dry according to the product instructions.
7. Inspect and proceed Check the wall to ensure it"s clean and dry. If no mold is visible, you can start gluing the wallpaper.

Before applying wallpaper, it is crucial to treat walls for mold in order to ensure a clean, long-lasting finish. You can shield your walls and your health from mold growth by taking the time to take the required precautions.

Every step of the mold preparation process, from finding the source of the mold to choosing the best treatment, is vital. Recall that mold grows best in moist environments, so taking care of any moisture problems is just as crucial as the treatment itself.

You can enjoy a mold-free environment in your home and lay a solid foundation for your wallpaper by carefully following these instructions. Putting in a little more work now can prevent more serious issues later on.

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Veronica Gerasimova

Interior designer, author of books on the design of residential premises. I will help you make your home not only functional, but also beautiful.

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