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How to remove mould, mildew or algae from your brickwork
Arriving on your driveway, how does your house exterior look? Do your bricks glint in the sun? Or are they withered and old, decaying with dirt and grime. Today’s pollutants have stained your brick walls. Everyday, your property struggles against harsh weather, traffic pollution, moss and algae. The dirt and grime provoked by modern day pollutants conceals your home or businesses true beauty. Your home is covered in a blanket of dirt; your bricks that used to be orangey-brown are now a sad shade of grey. By using a professional brick cleaning company, all traces of the world’s corruption will be washed away – thus, unearthing your homes original grace and beauty. However, if you acquire the skills and equipment that our professionals posses, we have devised together a step-by-step guide, revealing our top tips for the cleanest home in your neighbourhood.
Brave enough to follow our guide? Depending on your equipment and capabilities, methods of cleaning can be abrasive to your bricks. If you’re unsure, it is recommended that you use a professional. The equipment needed differs reliant upon the condition of your brickwork, in which brickwork suffering from mould, mildew or algae require different methods of cleaning and cleaning to bricks with rust stains or cement and mortar smears. Not sure about the equipment your brick requires? Call a professional – they will certainly acquire the appropriate chemicals and knowledge to clean your bricks.
STEP 1: Decide the type of stain or dirt that you’re dealing with
If it’s mould, mildew or algae, keep reading. If it’s a rust stain or cement and mortar smear, read our next blog for specific instructions on rust stains and cement smears. Bricks with mould, mildew or algae typically appear to be stained – a brick growing algae is tainted green, and a brick with mould or mildew has lots of black, dark patches.
For bricks with mould, mildew or algae
STEP 2: Mix cleaning solution
Using equal proportions, mix chlorine bleach with water in a large bucket. Mark volume lines on the outside of your bucket to make measuring easier – using too much or too little could badly affect your bricks or the process. Do not guess! Having mixed the solution, pour it into a pump type garden sprayer and pump it up. If the stain is more serious, makeup 2 gallons of the solution. Use 1½ cup of bleach and the rest water. Make sure to fill the bucket up to the correct volume.
STEP 3: Wash the wall
Wet the surface with a garden hose. When its wet, the discolouration looks even worse.
STEP 4: Spray bleach solution onto wall
Spray the bleach solution onto the surface. Begin at the top and soak it thoroughly. Allow the bleach solution to react with the stains for a few minutes; however do not leave it long enough for it to begin to dry. Rinse a small section to check whether the solution is having the desired effect.
STEP 5: For serious stains, scrub the bricks
If the stain is serious, use a long-handled brush to apply the solution to the wall. Reapply by continuing to dip your brush back in the bucket. Some corners can only be scrubbed with a handheld brush, in which you should wear gloves. If you have a large area to clean, don’t attempt it all at once. To stay within the five minutes of contact time, work in smaller sections and rinse the first area before starting in the next. Do not let the bleach solution dry on the walls without rinsing.
STEP 6: Rinse the wall
Whether you’re continually rinsing the wall whilst working on different sections, or you’re cleaning the whole wall – make sure the solution does not dry onto the walls. Rinse the wall thoroughly.
All the best! Following our guide should transform your bricks from grimy and polluted to polished and beautiful. However – if you are struggling, or do not acquire suitable equipment – do not hesitate to call a professional. Professionals posses the skills, capability and equipment to provide a thorough clean that will not damage your bricks.