How to paint an exterior wall

How to paint an exterior wall


Posted 26th Jan 2012

Keeping the outside of your home well maintained is important for two reasons. Firstly, to enable it to remain weatherproof, and secondly, to make it look good. If you’re thinking of selling, this is even more important as first impressions count and a few hours’ hard work can make all the difference.
Preparation
Doing this correctly will make the finished surface more durable. Choose a dry, calm day to paint and avoid working in direct sunlight. Early summer is good as the weather is usually fine, but not too hot. Allow plenty of time – any large-scale work might spread over several weekends. Cut back any creepers or plants growing up surfaces, and cover shrubs with dustsheets. Wrap newspaper around pipes and guttering and secure with tape.
Clean the surface
Using a stiff wire brush, remove any loose and flaking paint and debris. Then thoroughly clean the surface with detergent and water. If there is mould present, use a bleach solution to the ratio of 3:1 water to bleach. Rinse thoroughly and leave to dry.

Treat if necessary
If the surface of your wall is quite chalky, treat it with a water-based sealer to ensure you have an even and clean base to paint over. Again leave to dry thoroughly before starting the actual painting.
Start painting
Always choose the best quality water-based acrylic paint you can afford to ensure a great finish. Start at the top of the area and work down. Use a brush to cut around windows, doors and guttering, and fill large areas with a roller.
Tips
For uniform render, choose a textured paint for a tough finish. On rough surfaces like pebble dash, smooth masonry paint is easier to apply.
Use a paintbrush to cut in around windows, doors and up to drainpipes, but change to a roller for the main areas – using a brush here can make the job much more tiring and take longer. Use a long pile for textured surfaces and a medium pile for smooth walls. Buy more than one sleeve if you’re doing a large area as they wear out quite quickly.
Try to complete a wall in one go and make sure you finish at least two hours before sundown to give it time to dry.






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