Roof problems – Moss Removal

First rule of roof maintenance. Moss removal.
Keep the roof clean so that the rainwater drains quickly and roof surfaces dry well.

Moss removal from roof surfaces prevents secondary damage.
Moss, lichen and algae on a roof disturbs the flow of rainwater across the roof surface.

Growth thrives where the supply of moisture is best and establishes itself where the slates overlap especially along the lower edge, the tail end, of the slate.

During heavy rain, the lap cavities will overflow inside the building.

Most roofs have a notional second line of defence in the form of a bituminous felt, but it does not always perform perfectly and is not designed for long term protection. The battens and fixings, situated above the felt undergo accelerated decay.

Moss releases small amounts of organic acids that are corrosive to metal, particularly the lead and zinc used in soakers and flashings.

Applying MossGo Pro to a roof will kill the moss and remove moss and lichen growth before more damage occurs.

Roof damage to old buildings

Moss, lichen and algae growth on old buildings is perceived as successful conservation but it can be very damaging to the roof and building fabric.

Gentle restoration: MossGo Pro gently cleans and restores old roofs to their former beauty without causing the physical damage that results from pressure washing.

Aggressively cleaning ageing roof surfaces is not advisable. Always start with gentler, milder methods for moss removal and roof cleaning such as MossGo Pro.

Moss Removal – See the difference.

In the photograph, the roof on the right was cleaned with MossGo Pro in spring 2001 while the roof on the left was left un-treated. This photograph was taken in 2008.

Watch the video to see how safely and easily we can restore your roof



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