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How To Clean Concrete Roof Tiles

Dirt, moss and algae usually sees concrete roof tiles as the perfect place to reside. They can damage the structural bonds of your roof, they can lead to overheating of the attic and roof space as well as blocked gutters. In order to protect the structural integrity of your roof and ensure your home and properties are well protected against the elements, it’s therefore crucial to clean your roof regularly. There are plethora of ways to go about this but which method will best suit your concrete roof tile?

When it comes to working at heights, skill and confidence is paramount even if the actually cleaning and maintenance happens to be an easy task. As a result, if you lack the two attributes mentioned, we’d strongly recommend that you call in a professional roof cleaning contractor who can guarantee the best results for help. In this article, we aim to give you a good insight into the concrete roof tiles cleaning process. Let’s have a look!

✓ Use a trowel or stiff brush

This is a manual method which involves scraping off the algae, moss and dirt by hand using an effective tool like a trowel. However, before you do this make sure its a very dry day. Also, you can make use of a stiff brush to scrape off the dirt. Both cleaning tools are very easy and effective means to clean concrete roof tiles.

✓ Use chemicals

You can apply fungicide, moss killers and anti moss treatments with the help of a spray to kill any plant life on your concrete roof tiles. However, you should only do this after you’ve successfully scraped the surface with a trowel or a stiff brush.

There are a few reasons why commercial buildings often have flat roofs. Lots of people argue that flat roofs aren’t as attractive as pitched roofs, which is why it’s uncommon to see a residential property with an entirely flat roof. Lots of commercial buildings don’t need to look attractive, so go for flat roofs because they’re cheaper.

Flat roofs tend to be less expensive than pitched roofs, especially for large, broad commercial buildings. Some commercial buildings simply couldn’t have a pitched roof because their width would mean that the roof would have to be extremely high. Flat roofs are also cost-effective for commercial buildings because it means that air conditioning and ventilation units can go on the roof, saving space in and around the building.

Commercial buildings also often have flat roofs because they don’t need the loft space that residential properties need. If there’s no need for the space, it doesn’t make sense to spend more money on a pitched roof just to keep the attic space empty. Flat roofs also give the commercial building owner the opportunity to use the space as a smoking area for employees or give access to fire escapes to upper floors.

If you’re having a commercial property build, make sure you speak to the experts about the type of roof that is suitable for you. If you’re planning on having air conditioning or ventilation systems installed within the property, you might be best off with a flat roof – but if you need some extra storage space, a pitched roof might work best for you.

How to repair a hole in a flat roof depends on what material your flat roof is made from. If you have an asphalt, felt or EDPM rubber roof, the repairs are quite simple, whereas it’s a bit more tricky if you have a fibreglass flat roof. How to repair a hole in an asphalt flat roof If you’ve got a small hole in your asphalt flat roof, you might get away with using a paint-on fix from a tin. It’s best to use this as a temporary measure to tide you over until you can get in touch with a professional. If the hole is on the flashing, you can add heat-applied flashing tape to it, or use a patch of torched-on roofing felt. There are liquid systems you can use, but usually they’re only available to the trade. Repairing a hole in a felt flat roof It's a similar process to asphalt roofing if you want to repair a hole in a felt flat roof. Use a paint-on fix for a temporary solution, but the best way to repair a hole is to use a torched-on piece of roofing felt to cover the hole and make it watertight again. How to fix a hole in an EDPM rubber flat roof If the hole in a rubber flat roof is small, you may be able to get away with applying some lap sealant to the hole. Only use a small amount, as if you go for a more permanent repair later down the line all of this will need to be scraped off. You can also use a malleable piece of self-adhesive flashing – clean the area, add EDPM primer and stick the patch on from the centre outwards. Add sealant to the edges if you want to give it more water protection. How to fix pin holes in a fibreglass flat roof If you find pin holes in your fibreglass roof, it usually means there wasn’t enough resin used at installation. To repair the holes, you’ll need to sand down the entire roof back to the clear resin. Then clean the area with acetone and apply GRP roofing resin – the acetone ensures that the resin sticks. You might need two coats of resin to get rid of all the holes.

A Velux window is a brand of roof window, but the brand is so popular that people often use the name to describe the entire type of window. They are windows that are installed at the same orientation and ‘in plane’ with the surrounding roof, and they’re usually installed at a minimum of a 15-degree pitch. You can buy roof windows that offer completely frameless internal views for a really clean look in your loft conversion, while some come with built-in shutters.

Velux windows aren’t to be confused with rooflights which usually refers to a glazed unit that’s installed on a flat roof. It might also mean a window that’s been installed on a pitched roof out of plane with the level of the tiling.

People also confuse roof windows with skylights, which normally can’t be opened or closed and are usually smaller than Velux windows. Skylights, therefore, only let daylight into the room whereas roof windows also help with ventilation.

If you’re using your loft as a room in your home rather than simply for storage, you must have a roof window installed. Skylights won’t be enough as they don’t allow for ventilation. It doesn’t have to be a Velux window – it can be any type of roof window. Luckily, they tend to come in standard sizes and they must be CE marked if they’re sold as a roof window, so they should be easy to find.

How much a flat roof costs to repair depends on a few factors. Is your flat roof on a garage or an extension? What is the flat roof made from? It’s always best to get a few quotes to compare prices, but we’ll give you a rough idea here. If your flat roof was installed in the 1990s or earlier, it’s likely that you’ll see some leaks or damage soon. Felt flat roofs used to be installed completely flat, which meant that water couldn’t run off. That means that water pools and can create moss and damp. Sun exposure can also damage the felt, causing damage and eventually holes that lead to leaks. If you’re lucky enough to have got away with just needing a flat roof repair, this should set you back an average of £100 per square metre. If your roof is sagging due to the weight of it putting pressure on the timber frame, you might need additional joists – which could cost anywhere between £1,000 and £2,000, depending on how many you need. But if the problem is due to the internal part of the roof system becoming waterlogged, you could be looking at over £5,000. If your roof is severely leaking or the timber joists are rotting, it might be more cost effective to replace your flat roof. If you keep forking out for repairs, it will eventually be cheaper just to replace the whole thing, which could cost around £2,000.

It depends on the material you use, but if your flat roof is installed correctly it should last for at least 10 years, and at least 20 if a material other than felt is used. Always question a roofing company when they quote to find out what materials they use and what guarantee's they offer.

How To Clean A Roof?

If you’re planning to clean your roof, but don’t know where to start, you’ve come to the right place! There are different types of roofs available in the market today and the method used in cleaning one can be largely different from the other. As a result, we’re only going to look at one of the common types of roofs you’ll find in the UK - the Asphalt shingle roof tiles. This roof type is very common and for a good reason. Not only are they visually appealing but they’re also hugely versatile by design which enables them to be adaptable to varying shapes, angles as well as forms depending on your preference or needs. With all the benefits that can be derived from asphalt shingle, they however, need to be properly maintained to help retain their good looks.

To clean your asphalt shingles, you’ll most likely require some type of chemicals especially when dealing with algae stains and some other visual problems. Therefore, make sure you purchase a product marked safe to be used on this type of roof and not those only proven to remove moss and algae stains. Mix the chemical cleaner with a gallon of water and a quart of bleach or as instructed by the manufacturer. Pour the mixture inside a pump-style garden sprayer and mix thoroughly. When done, climb up on the roof and spray as good as you can. Upon completion of spraying the roof with the mixture, then allow to work its magic for some time - about 15 minutes or thereabout should be good.

After that, you can make use of a garden hose to spray down the roof and wash down the mixture entirely. If some stains remain, use a brush to gently wipe the tiles individually.

How Often Do Flat Roofs Need Replacing?

When a flat roof needs to be replaced is determined by a number of factors which includes the roof’s exposure to the weather, the condition and age of the roofing materials as well as the construction of the roof. However, with proper maintenance and regular inspection, they should be used for nothing less than 50 years. There are some commonly used types of flat roofs which includes Felt flat roof as well as a GRP flat roof.

Felt Flat Roof

The lifespan of a felt flat roof also varies depending on the quality and grade of the felt roof incorporated. This can make the roof last within the range of 2 to 20 years. More often than not, felt flat roofs are usually installed in such a way to keep the costs down which implies the grades of felts that are mostly used are the economical ones implying a very short lifespan.

In the event whereby a premium grade of felt is incorporated in constructing a roof by professional contractors, will be guaranteed by the manufacturer to last between 10 to 20 years.

One of the major causes of a short lifespan in felts is leaks which should be regularly inspected and repaired once identified. If not, the roof will gradually deteriorate and become a lot weaker due to the action of the sun. However, when a felt roof starts to leak, it’s usually a sign that’s approaching the end of its lifespan and a replacement should be taken into account.

GRP Flat Roof

The GRP flat roof or fibreglass flat roof usually comes with a manufacturer’s guarantee of 20 years and is expected to have a lifespan of a minimum of an additional 10 years.

Unlike felt roofs, they’re more resistant to leaks. However, they should also be regularly inspected for leaks which are caused mostly as a result of installation error rather than the GRP roofing approaching the end of its useful life. If the GRP roof repair does not totally resolve the leak, you should start considering a replacement.