Tag Archives: Construction Cleaning

 

Summary

    – Step 1: Effective Graffiti Removal Products

    – Step 2: Requesting Graffiti Removal

    – Step 3: Preventative Solutions

If you have graffiti on your home, you can either remove it yourself or call a professional to remove it.

Please find out how and what to do in our tip.

1. Products that work against graffiti

Large surface detergents

Has your facade fallen victim to vandalism? Do-it-yourself stores offer simple products to individuals that are less dangerous to handle than products intended for professionals:

    – These biodegradable and silicone-free detergents ensure easy cleaning in case of vandalism.

    – They have chemical compounds and surface-active properties inserted between water and other water-soluble substances such as acrylic or glycerol found in spray paint.

Good to know: stain removers based on methylene chloride or dichloromethane are also effective.

Pure bleach against graffiti

To remove a trace of graffiti on stone:

    – wipe the stain with a damp cloth;

    – dab the stain with a bit of bleach on a cloth.

If the stain persists:

    – apply modelling plaster to the stained area;

    – Drill a hole in the center;

    – dry;

    – Put bleach in the hole;

    – leave for a few moments;

    – rub with an abrasive sponge.

If this fails, repeat the operation.

Good to know: modelling plaster can be found in DIY stores.

On marble, sandstone or granite:

    – Apply a water or oil repellent solution available in DIY stores.

    – Follow the instructions carefully before use.

2. Request for intervention to remove graffiti

What to Do About Graffiti Stains

Intervention by the town hall

You can ask your local council to intervene with the appropriate equipment and products. This intervention remains free of charge, but it can be paid for under certain conditions:

    – if the stained support:

        ◦ is made of a particular material;

        ◦ proves to be dilapidated;

    – if the stained facade is difficult to access for personnel or their equipment.

Please note: this request must be supplemented by a complaint to the police department.

Intervention by a professional

Some companies specialize in post-disaster cleaning.

With ice blasting and baking soda, they can effectively clean graffiti.

Good to know: the price of an intervention by the town hall or a professional varies according to the estimate and the work to be done.

3. Preventive solutions

What to Do About Graffiti Stains

To prevent future graffiti from soaking into your walls, there are 3 solutions available to you:

    1. Put a protective plastic film on your facades: the film-forming product leaves, once dry, a protective film on the surface, so the pollutant cannot adhere to the facade and is easily removed with water.

    2. Apply protective varnish.

    3. Apply anti-tag paint.

Good to know: if you want to protect your glass facades, you can buy a roll of adhesive protective film. If graffiti is made on your window, you will only have to remove the film to stick another one.

Tips for anti-graffiti treatment

The anti-graffiti treatment is done as a finishing touch to the restoration, as is the exterior insulation.

In urban areas and more rarely in rural areas, it is not uncommon to see the damage caused by vandalism on facades. The tags and wild postings are part of these degradations.

The quicker the work is done, the less likely you will see other additions to your facade.

Good to know: this is the “broken window” theory: if one window stays broken, other windows will be broken nearby. The feeling of neglect leads to further carelessness, whereas the feeling that a place is maintained leads to respect.

If the intervention of a professional is possible, even recommended, you can clean and treat your facade yourself.

Nevertheless, a professional knows the materials, the products and their uses to treat graffiti, do not hesitate to take advice from these specialists.

The treatments apply to external insulation systems and are done as a finishing touch to the rendering.

The different criteria of an anti-graffiti preventive treatment

What to Do About Graffiti Stains

Anti-graffiti treatments must meet specific criteria:

  • no or little change in the appearance of the substrate;
  • facilitate the removal of graffiti with simple products and without damaging the materials.

Depending on the material’s porosity, the graffiti degrades the support more or less.

Impact of graffiti on the substrate

Porous materials Non-porous materials
  • Bricks
  • Stones
  • Coatings…
Smooth surfaces such as glazing.
The graffiti forms a film and penetrates the material’s surface: challenging to remove without more or less aggressive methods. The graffiti forms a film that remains on the surface: relatively easy to remove

Different actions of anti-graffiti products

3 common steps of anti-graffiti products:

  • pore size;
  • filmogenic;
  • oleophobic.

Products can have one, two or three actions.

  Mouths Pores Filmogenic Oleophobic
Definition Pore-filling action on the surface of the material: smoothes and waterproofs. Film-forming action on the surface: leaves a protective film on the surface. Oleophobic surface action: does not allow oils to penetrate.
Change in the appearance of the substrate Yes, slightly Yes No
Waterproof Yes Yes Yes

Types of preventive anti-graffiti treatments

We find on the market 2 types of preventive anti-graffiti products:

  • interim treatments;
  • permanent treatments.
  Temporary treatment Permanent treatment
Definition Treatment that partially or disappears when the graffiti is cleaned. Treatment that remains in place after the graffiti is removed.
Application
  • Usually in one layer.
  • Easy to apply.
  • Usually in several layers.
  • More complex application.
Action Allows for easy graffiti removal. Allows cleaning graffiti very easily.
Recommendations
  • Cleaning can be done with hot water and solvents.
  • Be careful with highly stressed surfaces, treatment to be renewed.
  • Cleaning is done with the solvent recommended by the treatment manufacturer.
  • Not recommended on listed buildings.
  • Can fix some stains.
Surface appearance Unmodified. Modified.

Preparation of the surface before applying the anti-graffiti treatment

Here are the steps to prepare your surface before applying the anti-graffiti treatment:

  • All glass surfaces must be protected.
  • Substrate temperature must not be below 5°C.
  • Traces of residues of paint must be removed.
  • The support must be sound, clean and free of grease.
  • There should be no traces of efflorescence.
  • The substrate must be sufficiently porous.
  • The support must have received a fungicide treatment.
  • Joints and cracks must be treated before application.

Application of the treatment

  • This type of treatment is applied with a brush or roller. It can also be applied by spraying. Read and follow the manufacturer’s recommendations.
  • Apply the product to saturation.
  • After application of the treatment on low porous surfaces, wipe off the excess product with a cloth before drying.
  • The products in the aqueous phase (water thinner) can be applied on a dry or wet surface. It is recommended to use them in two to three coats “wet on wet”, i.e. do not wait for complete drying between two coats.

Summary

    – Façade cleaning: essential!

    – Pressure washing of a facade

    – High-pressure facade cleaning to clean what?

    – Why choose high-pressure facade cleaning?

    – Who can do high-pressure facade cleaning?

    – How to clean your facade?

Facade cleaning: indispensable!

The appearance of dirt is often the result of a lack of maintenance of your facade over time. Facade cleaning is intended to maintain your building; it rids the facades of dirt from atmospheric and biological pollution. 

With a diagnosis intended to establish the work to be done, facade cleaning is the first stage to be carried out. Indeed, a clean facade makes it possible to visualize better the lack of protection, the errors of implementation… 

Depending on the state of the facade and the type of materials, trimming and means, you have various kinds of cleaning, including high-pressure cleaning that we will see in this post.

Please note that some types of cleaning are pretty straightforward, but others require professional know-how and skills. 

Pressure washing of a facade

The high-pressure cleaning of facades is an aggressive cleaning technique with water projection on the facade.

It is also possible to proceed with low-pressure cleaning, more gentle and more respectful of materials.

What is the purpose of pressure washing a facade?

High-pressure cleaning is used to clean:

    – greasy dirt;

    – dust;

    – black dirt;

    – paint residues.

It is used on:

    – stone;

    – brick

    – concrete;

    – wood.

Why choose high-pressure facade cleaning?

High-pressure cleaning is mainly used for the maintenance of facades and to reduce their clogging.

An annual cleaning will avoid long-lasting clogging provided that it has been treated with a water-repellent product and an anti-moss treatment.

Facades that are already dirty are cleaned thoroughly of atmospheric dirt, especially greasy dirt, using hot water.

Note, however, that you should avoid high-pressure cleaning in winter because of the risk of thermal shock.

It will help if you don’t use pressure washing on surfaces in poor condition. For instance, when there are degraded joints and in case of risk of infiltration.

How to clean your facade?

Before carrying out a pressure washing of your facade, it is necessary to protect the areas that are not cleaned, such as the windows, and protect the environment from water projections.

It is also essential to wear protective clothing, goggles, a mask and a pair of gloves.

Here are the steps for a high-pressure facade cleaning:

    – Apply treatment products as needed to the facade to be treated to soften biological soils, greasy soils, etc.

    – Soaps, wetting agents such as Teepol can be applied.

    – Apply the products with a sprayer, leave for 30 minutes, brush and rinse with a high-pressure jet.

    – Start at the top and work your way down the facade, from right to left or left to right, depending on your hand, keeping the spray nozzle about 50 cm from the facade.

    – Adjust the pressure so that it is not too strong. Adjust it to the type of material; if necessary, do some tests.

You should use chemicals with care, so read and follow the instructions carefully. 

Who can perform high-pressure cleaning of the facade?

It may not be a much easy DIY task to clean the facade of your own business. Suppose you are environmentally conscious or don’t like the smell of chemical solutions that can damage your facades. In that case, Cancore Building Services can help you. They make sure to use only the safest environmentally friendly methods.

How did you find this post? Remember to leave your comments and share.

Follow us

Partenaires