Properly waterproofing your roof is essential as water can cause damage to your roof and home, creating an unsafe environment.
Luckily, by taking the time to waterproof your roof, you’ll avoid any issues and will have your roof watertight even in the worst weather.
There are several options available; you can use liquid membranes, waterproof sealants and sheet-based membranes to waterproof your roof. Each has its advantages and limitations.
At EvoBuild, our Fastfix Wet Shield product is the ideal solution for your waterproofing needs. You can apply it in emergency or non-urgent dry situations. It’s easy to use and will provide practical and valuable waterproofing.
Before we look at the options available and the installation methods, let’s look at the importance of roof waterproofing.
Why is waterproofing a roof important?
A well-waterproofed roof will create a more comfortable and safe home environment and help to prevent the adverse effects that leaking water can cause.
Here are some reasons why it’s important:
Protection against water damage
Waterproofing your roof can help to prevent damage caused by water leaks, moisture and dampness in the roof space. The damage can be expensive to repair so by preventing water from entering your home in the first place, you’ll avoid structural damage and costly repairs.
Mould and mildew prevention
Dampness can lead to the growth of mould and mildew. Health problems such as asthma, respiratory problems and allergies can arise from these issues in your home. Proper, effective waterproofing can prevent excessive moisture and reduce the growth of mould and mildew.
Acting as an additional layer of insulation, a well-waterproofed roof will help to reduce energy bills. It simply acts as a boost to your insulation, restricting heat transfer to maintain a comfortable indoor temperature.
Longevity of your roof
Waterproofing your roof can help to prolong its lifespan as it’ll be protected from water damage, temperature fluctuations, and UV rays. In the long run, this will save you money as you’ll save on replacement costs for your roof. It’ll also help to enhance the property value as it adds a sense of security for new homeowners.
Waterproofing materials generally add a layer of protection without changing the roof’s appearance. However, there are options for different colours and finishes, meaning you can enhance the appearance of your roof with some waterproofing options if that’s your preference.
What are the different types of waterproofing, and how are they installed?
There’s more than one way to waterproof your roof. With many different options available to you, it can be hard to know which one is right for your roof.
Here are some of the different types and methods of waterproofing:
Fastfix Wet Shield
For instant waterproof protection, Fastfix Wet Shield covers up and bridges small gaps and cracks that can cause a leak, acting as an instant waterproof seal.
It only needs one coat and no primer and is an effective way to waterproof an area. It has a longer life than bituminous coatings, making it a cost-effective choice.
If you need emergency repair in wet conditions, Fastfix Wet Shield can be applied immediately to a wet surface and acts as a waterproof barrier. You’ll only need one thick coating, and you’ll be relieved at the efficiency of the product, even if it rains as soon as it’s applied.
In non-urgent dry weather, remove any debris or moss from the roof by power washing or brushing. Once dried, remove any residue and use a brush, roller or squeegee to apply a generous amount of Fastfix Wet Shield. The product can take 6-7 days to dry fully, but it’ll be effective from the first application.
Integral waterproofing is a method completed during construction and focuses on the foundations of a building. If this has been done effectively, it can save you money in the long run and increase the roof’s lifespan.
Chemicals and green concrete are mixed, which helps to clog, stop and cover any passages where water may flow. This type of waterproofing is a reliable and long-lasting, effective method.
Liquid and sheet-based waterproofing membranes
You can use a waterproofing membrane to waterproof a roof by preventing water ingress. It’s a layer of water-tight material that lies on the roof’s surface, keeping water and liquids out. Mostly, the layers are 4mm thick and should be strong and elastic to cover the cracks where water may enter.
Waterproofing liquid chemicals are an option for your roof as they turn elastic when dry. In liquid form, liquid-applied membranes are sprayed or brushed onto the area, unlike sheet-based membranes that need welding and steam. You can control the thickness of liquid rubber membranes and, depending on the size of the area, it’s a quick and easy process.
The first layer acts as a primer, and another two coats follow. Examples of liquid membranes are polymethylmethacrylate (PMMA), silicone and polyurethane, and they last up to 20-25 years.
Bituminous Coating Waterproofing
Bituminous coating waterproofing is a cheap and easy way to waterproof your roof. Bitumen is a form of petroleum that comes as a liquid or semi-solid. This waterproofing method is simple as all you need to do is spray a light layer as it provides a thin film that prevents water leaks. Bitumen is often used for foundations, as it can’t be exposed to direct sunlight.
Bitumen Sheet Waterproofing
Bitumen sheet waterproofing is done by laying sheets over a primed surface and joining them using a heating torch. Jute fabric and chemically modified bitumen form the sheets. Sheet membranes are a good option for tiled roofs as opposed to concrete, as the sheets are airtight and can restrict and damage the quality of the concrete.
How to know which material and method to use?
Here are some factors to consider to help you decide the right option for your roof:
Different materials may be suitable depending on which type of roof you have. For example, sheet-based membranes are a good option for flat, concrete roofs, and liquid-based membranes are well-suited to sloped roofs.
Temperature, humidity, and UV rays can affect the material you use for waterproofing, making it crucial to consider the climate in your area when choosing a waterproofing solution. Different materials and methods react differently to environmental factors, impacting their performance, durability, and effectiveness.
With different prices available, consider what works best for you within your budget in the long run with maintenance and replacement costs. For example, you may need concrete repairs if there’s damage to your roof from the waterproofing. However, a complete renovation may be necessary if waterproofing is absent in the first place. As with many construction decisions, it’s often about finding the right balance for you.
Proper waterproofing is vital as it protects your home, yourself and your family from the damaging impact a leak can cause. Generally, it’s a good idea to speak to a waterproofing professional, who can advise you on which material and method is best for you.
For a quick fix or a long-term solution, check out Fastfix Wet Shield today and keep those water leaks away. For more information or to speak to a professional about waterproofing your roof, check out our previous blogs or contact us today.
With proper waterproofing in place, you’ll have peace of mind knowing your home and your family are safe from the potential hazards caused by leaks, mould, and mildew.