Roof Coating and Sealing
Green Leaf Powerwashing services are an experienced roof cleaning and coating company with over 10 years' experience and are based in the middle of Northern Ireland with an ability to go throughout Ireland.
Before the roof coating our restorers will ensure the roof tiles are clean and in good condition. If moss is present, we will apply a fast-acting moss remover. We will comprehensively clean the roof, removing any moss, dirt and grime. We will take great care to repair any minor repairs by repointing any affected ridges, verges, valleys and if required will replace any broken tiles. We will give the roof sufficient time for the Moss remover, mortar etc to work/cure before applying Thermilate, a superior water repellent and high-quality coloured roof coating, which comes in 6 popular colours and can transform the look of your roof, making an old roof look like new. Alternatively, there is also a clear water-based impregnating super hydrophobic roof sealer that will not alter the appearance of the original tiles.
The roof coatings come with 10-year manufacturers guarantee against peeling, flaking and discoloration.
The roof coating is normally carried out using an industrial airless sprayer. Once the first coat is applied and is allowed to dry off a second coat is normally applied to create a better colour and a total colour transformation, the clear coating is a one coat system.
Benefits:
★ Can make an older roof look like new
★ Can add value to your home by increasing the ‘kerb appeal’
★ Helps reduce the spread of moss, algae and lichen
★ Increases the flexibility of the roof tiles to prevent cracking
★ Prevents water penetration and frost damage and assists with vapour release from the roof void due to breathability
★ Increases the durability of the life span of the roof
Softwash Cleaning
In the fullness of time roof tiles become covered by moss, lichen and a host of other species called a biofilm which are harmful to the roof materials and gives the appearance of the property being poorly maintained.
Softwash is a non-aggressive high purity biocide, suitable for cleaning roofs and walls. It is applied using specialist equipment instead of a high-powered pressure washer and is adapted to suit the weather conditions that prevail in Ireland.
Firstly, we remove the excess growth which is dry brushed and scraped off by our experienced restorers pacing the roof itself. The small moss fibres left will disperse with the chemical and fall off naturally. The gutters are protected against blockages beforehand and tarpaulin is laid down to catch any falling debris. The fungicide wash treatment is sprayed onto the roof or walls using the softwash system. The Spray box mixes the concentrate to the correct solution for each specific job. It is sprayed evenly using the correct pressure flow rate for the system.
The active ingredient can leave a discolouration at the point of contact with plant leaves and flowers, early rinsing has good results however protection may be needed, grass, if affected, will recover rapidly.
Green and red algae will die within a few minutes of application. If the algal film is thick enough, a milky sheen will replace it for a short period before dispersing in the wind. The orange pigment originating from the red algae,Trentepholia, may take longer but being water soluble will wash away with the rain.
The chemical treatment is a reactive treatment chemical working and reacting for 18-24 months with wind and rain and can take 3-6 months before you see the complete result.
Tarmac Cleaning and Sealing
We are often asked to clean and seal Tarmac and Imprint concrete.
Tarmac is difficult to keep clean because of the moss growth and is very likely to attract the growth of weeds over time
Our method of cleaning combined with specialist industrial powered equipment and environmentally friendly products can clean most tarmac surfaces.
We start by sweeping away any loose stones, clean the surface by pressure washing. The surface is then pretreated with fungicide to inhibit moss and algae growth. Repairs to any cracks or pot holes are carried out and finished by applying Tarmaseal restorer to bring the surface back to new. After cleaning we would recommend sealing with a tarmac sealer which would restore lost colour and increase the life span of the tarmac and protect the driveway from oil stains and protect the surface for up to 5 years
Driveway and Patio Sealing
In addition to cleaning and coating roofs we pressure wash and seal Driveways, patios and block paving.
Block paving is very difficult to keep clean because the sand filled joints are very likely to attract the growth of weeds over time.
Our methods of cleaning, combined with industrial powered equipment and eco-friendly products can clean most block paved surfaces and help to make them look like they have recently been laid.
After pressure cleaning block paving, we would recommend having it resanded and sealed with a high-quality block paving sealer. This sealer helps to solidify the jointing sand which in turn helps to restrict weed growth.
The sealer will also protect the driveway from oil stains and other forms of surface degradation and protect the surface for up to 5 years. We also clean, seal imprinted concrete, natural stone and tarmac driveways and patios.