Moss Can Weigh More Than a Ton Clean it off Your Roof

Dirty Roof?

Let's Make it a

CLEAN ONE!

Before

After

As trusted by:

Is Roof Cleaning Safe?

Access Platform Hire Kent

27th August 2021 General

Is Roof Cleaning Safe?

Yes; roof cleaning is safe, if done by trained professionals using the correct equipment and cleaning solutions. Using a high-power pressure washer is not a good idea and is likely to damage roof tiles, remove mortar pointing and force water beneath roof tiles or slates.

Soft washing is the safest and most effective method of cleaning a roof. The process uses a combination of sodium hypochlorite, pure water, and a product such as Green Wash (available from SoftWash Systems), applied at low pressure from a distance of 6 feet away. Soft washing works at a far lower pressure than pressure washing because the low-VOC biodegradable soft washing solution kills and emulsifies organic matter while also breaking down its bond to the roof’s surface. The roof then simply needs a final rinse at low pressure to remove the debris.

A soft washed roof will be free from organic matter (moss, lichen, algae, etc) will stay clean far longer (normally between 4-6 times longer) than if it had been pressure washed because the roof’s surface has effectively been sanitised.

Pressure washing simply rips away the visible organic matter, inevitably leaving plenty behind which may not be visible initially, but with a surprisingly short time, this organic matter would be visible once more, having simply been mowed (and watered!).

Health and Safety

At Purple Rhino, we invest heavily in equipment for working safely at height without ever setting foot on the roof. We take health and safety extremely seriously and underpin this with our comprehensive insurance. It’s vital make sure a roof cleaner’s insurance is adequate. In some cases, if cover is inadequate, liability may be on the home owner’s shoulders.

Soft washing will sometimes reveal cracked tiles. Roof tiles are often cracked BEFORE being soft washed, but being covered in moss made it impossible to see. In this case, isn’t it better to identify and replace cracked tiles sooner rather than later, anyway?


Comments are closed.

Case Studies of Our Cleaning Work


See all case studies
  • Stone Cleaning

    Case Study

     Purple Rhino Author Logo

    HM Treasury Climate Change Spray Blood Doff Steam Clean Up

  • playground-cleaning-ashford

    Case Study

     Purple Rhino Author Logo

    Tower Tiny Tots Nursery

  • Case Study

     Purple Rhino Author Logo

    Luxury Property Render Cleaning Services

  • Cladding Cleaning

    Case Study

     Purple Rhino Author Logo

    Cladding Cleaning at Odeon Cinema

  • Block-of-Flats-Render-Cleaning-Purple-RHino

    Case Study

     Purple Rhino Author Logo

    Stone and Render Cleaning using DOFF

  • Roof-Cleaning-Folkestone-Purple-Rhino.co.uk

    Case Study

     Purple Rhino Author Logo

    Roof Cleaning – Garden House Court, Folkestone

What our Clients Think


See all testimonials
  • We used Purple Rhino for the first time in 2014 , very prompt service, great job done in cleaning the outside of our 15000 sq ft building , would certainly recommend Purple Rhino

    Gary Kersey
    European Flavours & Fragrances PLC, Hertfordshire

  • Both jobs were completed to a standard beyond our expectations, especially the cladding clean. We, our Client and the school are all very impressed with the way it cleaned up, someone actually thought it had been replaced.

    Excellent job, thanks to you and your operatives

    J Andrews Hard Services Manager
    Sodexo,

  • As always a phenomenal job – well done

    Green Eco Ltd
    ,

  • My experience with the services of Purple Rhino has been professional, economical & helpful, allowing maintenance to be carried out on buildings confidently without requiring personal on­site visits

    Janet Killingbeck Property Management
    Michael Rogers, Reigate, Surrey

Purple Rhino Blog


See all Purple Rhino News

Our Recent Work

Call Us Email Us

Your buildings will
look brand new