Reforming the roof by completely removing the tiles is a time-consuming and labor-intensive alternative that causes a number of inconveniences for the occupants of the property. For this reason, companies have been striving to develop more practical and functional solutions, which offer an excellent cost x benefit ratio.
Among these solutions, the ecological tile over-roofing stands out. With this technique, it is possible to reform the roof without removing the old covering, avoiding the inconvenience, the accumulation of rubble and the high cost generated by this type of work.
Renovating the roof without removing the old covering
Do you know in which cases an over-roofing is indicated? To clarify these and other doubts, riverside roofing pros created today’s article. Read on!
How does an over-covering with ecological roof tiles work?
In an over-covering, the new roof is installed over the old material. This way, the existing structure is fully used, which reduces the total cost of the work and provides excellent aesthetic results.
How can the over-coating be used to reform the roof?
A widely used solution to solve problems such as fissures and cracks that cause infiltration and leakage, replacing the roof completely is an expensive and stressful job that generates a lot of rubble and requires changes in the routine of the building’s occupants.
Over-roofing with ecological tiles is a more practical and efficient alternative, suitable for those who need to remodel old corrugated tile or ceramic tile roofs, which with the passage of time and constant exposure to bad weather suffer natural wear and tear, but don’t want to go through the inconvenience – nor incur the high costs – of a complete renovation.
What are the advantages of over-covering with ecological roof tiles when remodeling the roof?
Choosing an over-roofing when renovating the roof has a number of advantages for your work. Understand each one of them better!
It offers greater thermal comfort
When the over-coating is installed, it creates an area between the new layer of tiles and the old one. The area helps retain the heat that falls on the roof. Thus, it reduces internal heating in the building, making the building cooler and consequently reducing costs with the use of air conditioning and ventilators.
Improves acoustic insulation
With the ecological corrugated roof tile overlay, besides having a much cooler building in the summer, you also improve the building’s acoustic insulation, reducing the reception of external sounds and ensuring more well-being inside the building.
Eliminates leaks and drips
By installing an over-roofing system, the building gains a second covering. It ensures extra protection against weather conditions and humidity. Also, it significantly reduces the risks of infiltrations, leaks and drips.
Revitalizes the roof
Besides being effective, the ecological corrugated roof tile overlay revitalizes the roof, since the various color options of the tiles renew the look and add value to the property.
It does not interfere with the routine use of the property
Anyone who has ever had a roof remodel knows this: besides being complex, the work is quite invasive, since it interferes with the residents’ routine, especially if it is done during the rainy season and there is no slab.
By opting for the over-roofing, these inconveniences do not happen. Besides avoiding the break-in, the entire renovation takes place outside. You don’t have to leave the property while the installation is being done.
It is an ecologically sustainable option
When you opt for an over-roofing, you are making an ecologically responsible choice. Besides the fact that this type of ecological tile is produced with low environmental impact, the work does not generate waste and even extends the useful life of the existing material.
Doesn't installing new tiles over the old roof overload the structure?
This is a very common doubt among consumers who think about installing an over-roofing when reforming the roof. However, this is not the case.
If the over-coating is installed over a ceramic tile roof, for example, the total weight does not increase. This is because ceramic tiles absorb a lot of water during rainfall, and their weight can increase by up to 30%.
Onduline overlay
Ceramic tiles weigh approximately 40 kg per m². During rainfall, they gain an additional 12 kg of water per m². The over-coverage weighs approximately 13 kg per square meter, wet or dry, since ecological tiles have a water absorption of less than 1%, that is, their weight is practically the same with or without rain.
However, if the over-roofing is installed over a fiber cement roof, it does gain some extra weight. A 6 mm fiber-cement tile weighs about 16 kg per square meter, reaching 21 kg per square meter during rain. In other words, fiber-cement tiles gain 5 kg per m² in weight against the 13 kg per m² of overglazing tiles, generating a difference of 8 kg.
However, even though the structure gains some additional weight in this case, the advantages are still far superior. As you’ve seen, the over-coating definitely eliminates leaks, improves the thermal sensation inside the property. Also, it improves acoustic insulation, and is a more economical and practical option.
As you can see, reforming the roof without removing the old covering is a smart alternative. It avoids the inconveniences caused by completely replacing the tiles, such as changing the routine use of the property, without causing any damage to the roof structure.
In addition, over-roofing is an economical option. It does not waste material, does not generate rubble. In addition, it renews the property’s appearance without weighing on your pocketbook.