Services résidentiels et commerciaux

de nettoyage et démoussage de toiture

nettoyage résidentiel  de toiture en bardeau - photo avant le lavage - Net-o-pression - Salaberry-de-Valleyfield

Have you perhaps noticed dark and unsightly marks on your roof? These are actually algae called Gloeocapsa Magma, more commonly known as blue-green algae. They tend to develop in shaded and hidden areas of roofs, where vegetation is dense and water can accumulate, as well as on parts of roofs facing north.

It’s not just an aesthetic issue; these algae represent a danger to the very integrity of your asphalt shingles and cause premature deterioration of your roof.

Green moss buildup can also be problematic for your roof. This type of moss absorbs moisture during downpours and retains it, creating an environment conducive to mushroom growth. Consistently high humidity and the proliferation of fungi cause asphalt shingles to deteriorate, including lifting, and can eventually lead to costly leaks.

During the work, we apply an antifungal solution to the roof in order to eradicate any organic presence on the asphalt shingles. Our confidence in the effectiveness of our process means that we offer you a two-year guarantee against any reappearance of fungus.

The Net-O-Pression team offers a pressure-free, friction-free roof cleaning service, approved by asphalt shingle suppliers, guaranteeing you a roof in perfect condition.

nettoyage de toiture résidentiel - photo avant le lavage - Net-o-pression - Salaberry-de-Valleyfield

Have you perhaps noticed dark and unsightly marks on your roof? These are actually algae called Gloeocapsa Magma, more commonly known as blue-green algae. They tend to develop in shaded and hidden areas of roofs, where vegetation is dense and water can accumulate, as well as on parts of roofs facing north.

It’s not just an aesthetic issue; these algae represent a danger to the very integrity of your asphalt shingles and cause premature deterioration of your roof.

Green moss buildup can also be problematic for your roof. This type of moss absorbs moisture during downpours and retains it, creating an environment conducive to mushroom growth. Consistently high humidity and the proliferation of fungi cause asphalt shingles to deteriorate, including lifting, and can eventually lead to costly leaks.

nettoyage résidentiel  de toiture en bardeau - photo avant le lavage - Net-o-pression - Salaberry-de-Valleyfield

During the work, we apply an antifungal solution to the roof in order to eradicate any organic presence on the asphalt shingles. Our confidence in the effectiveness of our process means that we offer you a two-year guarantee against any reappearance of fungus.

The Net-O-Pression team offers a pressure-free, friction-free roof cleaning service, approved by asphalt shingle suppliers, guaranteeing you a roof in perfect condition.

nettoyage de toiture résidentiel - photo avant le lavage - Net-o-pression - Salaberry-de-Valleyfield

Trust Net-O-Pression

pour le nettoyage de votre toiture et éviter ainsi toutes complications

A 5-star roof cleaning service

The highly recommended roof washing company
in Valleyfield and Vaudreuil-Soulanges.

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    Some achievements of
    our roof cleaning

    Discover our know-how in action through these Before/After transformations.

    entreprise de nettoyage de toiture en bardeau - photo avant le nettoyage - Net-o-pression - Salaberry-de-Valleyfieldentreprise de nettoyage de toiture en bardeau - photo après le nettoyage - Net-o-pression - Salaberry-de-Valleyfield
    entreprise de nettoyage de toiture en bardeau - photo avant le nettoyage - Net-o-pression - Salaberry-de-Valleyfieldentreprise de nettoyage de toiture en bardeau - photo après le nettoyage - Net-o-pression - Salaberry-de-Valleyfield
    entreprise de nettoyage de toiture en bardeau - photo avant le nettoyage - Net-o-pression - Salaberry-de-Valleyfieldentreprise de nettoyage de toiture en bardeau - photo après le nettoyage - Net-o-pression - Salaberry-de-Valleyfield
    Service de nettoyage de toiture avec mousse - photo avant le nettoyage - Net-o-pression - Salaberry-de-ValleyfieldService de nettoyage de toiture avec mousse - photo après le nettoyage - Net-o-pression - Salaberry-de-Valleyfield

    FAQ

    Some questions about our roof cleaning services

    When should you clean your roof and how often?

    It is recommended to clean your roof at least once a year. This frequency may increase if you live in an area with frequent rainfall or surrounded by dense vegetation. The best times to do this are in spring and fall, when temperatures are moderate and precipitation is less frequent.

    Why is it sometimes better to call a professional for roof cleaning?

    A professional has the equipment and expertise to carry out effective cleaning and treatment without damaging the roof. In addition, it can identify and repair possible damage that could worsen without intervention. The cost of professional cleaning generally ranges from $15 to $30 per m2, depending on the initial condition of the roof and the treatments required.

    Can you clean your roof yourself and what equipment is needed?

    Roof cleaning can be done yourself for regular tasks like cleaning gutters. However, for larger cleaning and treatment jobs, it is recommended to call in a professional. Working at height requires safety equipment such as non-slip shoes, a safety harness, and a special roof ladder. A stiff brush may be enough to remove plants, but using a high-pressure cleaner is not recommended as it can damage the tiles.

    What products and techniques should I use for roof cleaning?

    Avoid using bleach or chlorine, which can damage the tiles. For moss removal, water-dilutable products are common, and for water-repellent treatment, make sure the surface is clean and dry before application. There are preventive or curative moss removal products depending on the situation of your roof.

    What are the risks of improper roof cleaning?

    Using inappropriate techniques such as high pressure cleaning or using aggressive products can make the roof porous and damage the materials. Additionally, untreated moss and lichens can regrow and cause long-term structural damage.