Roof Problems
Moss growth on roof surfaces should be removed periodically to prevent secondary damage from developing.
Moss disturbs the flow of rainwater on roof surfaces. It tends to thrive where the supply of moisture is best and establishes itself in laps particularly at the tail end.
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 release small amounts of organic acids that is corosive to metals, particularly lead and zinc used in soakers and flashings.
Applying MossGo to a roof will remove moss growth before more damage occurs.
Damage to Slate Roofs
On roof slates, lichen dots, sometimes as large as plates colonise the roof. moss balls sometimes form at the tail, particularly on man-made roofing slates.
Wet area on roofing slates
The effect of dirt creeping into the laps is an increase of the capillary creep, resulting in the nail hole being in the wet zone as illustrated.
Brochure
HSE Approved
Affiliation
Address
- Thames Valley Specialist
Products Ltd - PO Box 1945,
- Maidenhead,
- SL6 2XR
Contact
- Phone: 01628 687 022
- Fax: 01628 687 023
- Email: info @ roofclean.co.uk