Refreshing your roof with a fresh coat of paint can really change the look of your home and boost your curb appeal.
Let’s take a look at the best methods and techniques you can use to achieve your desired results.
Before you start painting your roof, you need to make sure it’s clean of moss, algae, leaves, dirt and other types of debris so you can have a clean surface to work on.
There are a variety of methods you can use to clean your roof, most of which depend on the type of surface you’re working with. For example, most metal roofs can handle gentle pressure washing without getting damaged in the process, while other types of roofing materials, such as asphalt shingles don’t do well under high force and water produced by a pressure washer and can even be damaged in the process.
Additionally, pressure washing can wear out the surface, lead to tearing in the protective granulation off the roof and can even get water behind vapour barriers, causing a structural rot in concrete roofs.
While pressure washing is the easiest and quickest way to clean your roof, there are other roof cleaning alternatives that can work even better and produce great results. The simplest, yet highly effective roof cleaning method involves using a stiff brush to scrape off any moss, algae and dirt build-up. Alternatively, you can use moss and algae killing solutions that can be applied on the roof shingles once you remove as much of the algae and moss build-up with a trowel or a brush. This way the solution can react with what’s left on the surface and destroy all plant life that can still be found on your roof.
Be careful when using such chemicals, as they are designed to kill any plant life, not just moss and algae and can destroy any nearby grass and plants if you forget to cover them before starting the treatment. Make sure these chemicals don’t end up in your drinking water as well.
Safety note: Remember that trying to balance on a roof while cleaning it at the same time is a dangerous task and should only be performed by a skilled and well-equipped individual, using the necessary safety equipment.
Once you give your roof a nice and thorough cleaning, you can move onto the next step of the process, which includes a closer inspection and necessary repairs of broken or damaged sections. Locate all damaged sections of your roof and note them down. Replace or fix any broken tiles and repair any holes and cracks as soon as possible, so they don’t end up causing you more trouble down the road.
Depending on the extent of the problem, you can either fix or replace your roof shingles. If the shingle is just torn or cracked, you can fix it by applying sealant under the crack, pressing it down and applying another layer of sealant on top, spreading it with a putty knife.
When it comes to missing or completely ruined shingles, you will need to replace them with any leftover shingles that you have at home or purchase new ones. If you can’t find the exact same match, look for the closest one around. Remove the broken or ruined shingle, replace it with a new shingle and secure it in place.
Once everything is fixed, you can move onto the final step of the process which is painting.
Once your roof is clean, inspected and any imperfections have been addressed and fixed, you can head onto the final step of the process and start painting.
The painting method you’ll use depends mainly on the type of roof you have. To make things a bit clearer, we’ll go over some of the basic steps you’ll need to take when painting a tin and a tiled roof.
Let’s get right to it!
Depending on the condition of your roof, or whether or not it’s old or relatively new, you can decide if you need to scrape off the surface to remove any chipping and rust, or go ahead and start priming right after the cleaning. This way you can let the primer lock in any mild chipping so the paint can adhere better to the surface.
Use a rust inhibitive metal roof primer that offers extra protection and adhesion and start applying it using a roller with an extension pole. Once your primer has dried, it’s time to apply the final top coat of paint.
Once you’ve cleaned and repaired your roof, it’s time to start the painting process. Airless spraying is the best technique for painting tiled roofs, as it gives nice and even results in the shortest amount of time. You can also use a brush to paint the shingles, but we recommend renting or purchasing an airless spray gun which will save you a ton of work and time and provide you with excellent results.
Remember to work in small sections when applying your primer and your paint, and try to get things done early in the morning or on a cloudy day so that your paint doesn’t dry up too quickly.