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Rebuilding the roof of the house: 8 questions to make your project a success

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Rebuilding the roof of the house: 8 questions to make your project a success

Leroy Merlin

Redoing the roof is an important step in renovating a home. Traditionally entrusted to a roofer, this roof repair is no longer a fear for self-renovators. They know that they will easily find the materials and equipment they need. With two specialists, we have listed the 8 essential questions to ask before starting or having roof work done.

The roof protects against bad weather and noise. It is also a major element in the aesthetics of the house. As its lifespan is long, the choice of materials and the quality of implementation are crucial. Finally, we can not talk about roofing without evoking insulation. Leaving to discover the roof why not opt ​​for a sarking, this technique of insulation from the outside, ultra-efficient?

1. Roof renovation: how to prepare your project?

"Often, we redo the roof after a damage, says Olivier Lafore, director of marketing and communication Imerys Toiture.The infiltrations have become important, tiles or slates are broken and may fall, we must intervene without delay.

But a roof renovation is also the time to ask questions. And if we insulated the roof from the outside? And if we took advantage of the new cover to completely revamp the house? "We can, in fact, transform a banal flag of the 60s into a beautiful contemporary house", confirms Olivier Lafore. We start with the roof, choosing slate-colored smooth tiles, then install aluminum joinery and freshen the plaster. To give even more personality to the house, you can install gray tile cladding on a portion of the wall. "

A pavilion of the 40s transformed into a contemporary house: insulation from the outside, cladding and roof tiles terracotta, all in a beautiful slate color.

Imerys Roofing

2. What permissions do I need to rebuild the roof?

If you redo your roof exactly, no authorization is necessary. On the other hand, if you modify the appearance of the house (by changing the type of cover or its color), you must file a preliminary declaration of work in Mairie. In any case, anticipate and contact your Town Hall. You will mention in particular the authorizations necessary to the site: parking of a bucket on the public road or reservation of places of parking. Be aware that the Local Urbanism Plan (PLU) may impose a type of cover, a format or colors, especially if you are in a protected area. Never start a construction site without authorization.

3. What help can I get if I redo the roof?

The renovation of the roof itself does not give rise to any tax assistance. However, you can enjoy a 10% VAT provided that the housing has been completed for more than 2 years and that materials and work are provided by a professional.

However, if you take advantage of the roofing to improve the insulation of the house, you will have, on the shutter isolation, fiscal incentives.

Roof renovation: the construction site is progressing in phases. On the right, the roof is ready to receive the blanket. On the left, the screen under the roof has been installed and the counter bedding is in progress.

Leroy Merlin

4. Tiles or slates: which cover to choose?

If the PLU of your commune leaves you the possibility, you will be able to choose your cover: tiles, slates, but also lauze or thatch in certain regions. Learn about regional specificities because the place where you live can guide not only the type of coverage but also the method of installation and the accessories used.

"In the south, we use the canal tiles (or round tiles) .The houses are traditionally bungalow with a low roof slope and these tiles provide a good flow of rainwater and a perfect seal," says Olivier Lafore Imerys Roofing.

In coastal areas (windy) and mountains, the implementation of the roof meets special constraints to withstand climatic assaults.

Finally, if you want to produce some of your energy, know that there are photovoltaic tiles. They integrate perfectly with the roof, without extra thickness.

Produced in Wardrecques and typical of northern France, interlocking tile, small mold, embossed. Model Monopoly n ° 1 Huguenot in Old North.

Imerys Roofing

5. Make your own roof: what precautions to take?

"Self-renovation is growing and roofing work is no exception," says Frédéric Jovenin, Leroy Merlin's Material Product Manager, "The big equipment, like scaffolding, is not a problem. be rented and we have a partnership with a large renter.It is important not to overlook the safety equipment: harness, shoes, knee pads, gloves and even roof ladder. prepare the worksite upstream, organize the flow of materials, provide tools, tarpaulins, etc. Practical guides and tutorials are available to explain the various technical steps. "

If the roof area is large, get help from other renovators. The installation of the battens, the cover or even the sheeting will be much simpler.

Laying of an adhesive tape in ridge.

Leroy Merlin

6. What are the steps of a roof repair?

"The configurations can be very different, warns Frederic Jovenin, Leroy Merlin.We take the example of a slate cover placed on battens.We start by removing the old cover and then remove the battens and against-battens. to clear the screen under the roof, if there is one.At this stage, one can make a visual diagnosis of the frame and treat the possible problems. "

Never discover the entire roof at the same time, work by zone. Cover the yard at the end of the day, even if the weather is nice.

"Then we take the steps in the reverse order.Playing the screen under roofing, counter-bedding and bedding.It remains then to hang the slates with hooks."

Choose the screen under roof according to your needs, insulation (to improve the winter comfort) or reflector (for a better summer comfort).

7. What are the tips for a roof to last a long time?

Terracotta tiles and slates are natural products, with long life. Their guarantee is usually 30 years old. However, implementation and maintenance have a great impact on the sustainability of the coverage. "You need good ventilation under the roof," says Frédéric Jovenin of Leroy Merlin, "When laying, we must respect the air gap on the underside of the tile and that there is no contact between the roof. tile and the screen under the roof.There must also be perfect sealing at the singular points such as angles, roof windows, chimneys or gutters.Therefore the finishing accessories are so important. "

Roof composed of smooth tiles (model HP17) slate color. Photovoltaic tiles (Evolu'Kit) have been integrated to ensure autonomous energy production.

Imerys Roofing

8. How to maintain your roof?

To keep a roof in good condition for a long time, do a regular inventory. First an external diagnosis using binoculars and, if possible, an internal diagnosis (if it is attics lost). "We make sure that tree leaves or plant residues do not stagnate on the roof," says Olivier Lafore, Imerys Toiture's Marketing and Communications Manager, "The interlocking of the tiles must remain clean, like the windows around them. roof and the water must flow properly in the gutters.In the long run, these residues and pollution create deposits, we must then proceed with the defoaming of the roof Do not entrust this operation to anyone and especially , use suitable products, never detergent and even less bleach, you risk damaging your roof. "

thanks to

Frédéric Jovenin - Material Products Manager - Leroy Merlin - www.leroymerlin.fr

Olivier Lafore - Marketing and Communication Director - IMERYS Toiture - //www.imerys-toiture.com

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