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To achieve his barbecue, Alain Onghena began by renovating a wall in the regional tradition. Then he created a terrace made of concrete slabs.

A terrace with barbecue

See the plan of this realization (in pdf): Terrace with barbecue: the plan

Pro tips

Before rolling up its sleeves, the restoration of this type of construction requires information on the techniques of implementation. "I took advice from a friend mason, best worker in France", explains our reader. The association for the restoration and preservation of Breton heritage Tiez Breiz, of which he is a member, also provided him with a lot of information.

With these tips, Alain Onghena has done all the work himself. "I hate wasting time, so I organized my job in the most efficient way. For example, with a good method of mixing, you can work quickly and without a concrete mixer. " Machine, which according to him, favors the backache... Son of farmer and doctor himself, our reader carries indeed particular attention to the postures of work.

Renovate walls identically

It is impossible to develop here all the works undertaken by Alain Onghena... West side, the entrance of the house presented a part in muddy and another concrete blocks, worse still. In addition, "The restoration of the south wall was essential. Inesthetic and very degraded, it was surmounted by two rows of blocks at the height of a roof terrace. The rain caused infiltrations into the living room... "

First stage of the project: "Using a chipping hammer, I burst some blocks in order to seal large blocks of shale with adhesive mortar. Then I reproduced the flashings in the same way with laminated shale. "

Lime plaster

The reconstituted walls are immediately protected with a traditional lime rendering. An operation that our reader has particularly cared for: "The gobetis - hook layer - is troweled to a thickness of 5 to 8 mm from bottom to top. We work in order to create asperities, and making sure to remove the joints between the blocks, which is not always possible with monolayer coatings »he explains. To apply the next layer, with a slightly different composition (see box), the most important thing is to act in one go. Our reader has therefore appealed for four days to a young man paid by check service.

"Many professionals recommend using sand with a slightly larger particle size to limit the risk of crazing. But as I did all the implementation, it was easy to tighten the trowel at night before going to bed. And start again the next morning before going to work! "

Following the advice of professionals, our reader began by installing a wire mesh on part of the wall before giving up the idea: "It's expensive, long to fix and useless," he says. In order for the gobetis and the plaster body to hang on the stone wall, it is enough to wet the support well the day before. Then rewet it before application of gobetis. It is against this wall that will be built the masonry barbecue, "adapted to frequent use".

Malignant barbecue

A convivial terrace could not be complete without a grill. Alain Onghena says: "I first designed three shale jambs, they are perpendicular to the wall. Then I made a worktop in reinforced concrete covered with terracotta, by providing a space under the future fireplace to install a drawer for the evacuation of ashes. "

The hearth is built using firebrick mice. They are mounted on a height of 64 cm (9 field mice) to raise the grid in case of too much heat or in the presence of flames. Clever, our reader has also planned the location of a rotisserie: "A hollow steel tube installed on both sides of the hearth. "

Create a terrace

Other work done by Alain Onghena: the realization of a paved terrace instead of a vast lawn.

It all starts with a good deal: a lot of cement slabs bought from a company that was liquidating its stock. Rows of slabs and pavers will alternate to break the monotony of the composition and create an area littered with planters.

After unpacking the land by hand (35 m2), our reader realizes a hedgehog; the layer of rubble is groomed with a rented machine. Then comes the setting up of the reinforcement (recovered elements) and the pouring of the slab. "I sealed the concrete elements with a bastard mortar of my composition: 2 volumes of hydraulic lime, 1 vol. of gray cement, 1 vol. of white cement, for 8 vol. sand "Alain details.

Cover the wood shed

Before enjoying grilling-parties, rest to mount the roof of the wood shelter (35 m2) became awning. Here again, the work is painstakingly organized. Our reader nailed the battens and fixed the slates to the hook. Finally he put a zinc gutter.
The only exception to the rules of the art, to make cuts, he used a grinder equipped with a diamond disc rather than a sledgehammer. Best of all, Alain Onghena stuck on a slate sheltered from the ridge a calendar of the year 2000. For posterity!

Coating: a homemade recipe

Advised by his friend Mason, here is the recipe of the exterior plaster used by our reader.

Gobetis: 1 bag of 40 kg of hydraulic lime (COH, Saint-Astier); 1/2 bag of 25 kg of aerated lime ("Batidol" of French Chaux & Dolomite); 30 sand shovels (one shovel = about 5 liters).

Coating body: 1 bag of 40 kg of hydraulic lime; 30 liters of aerial lime (2 buckets of 15 l); 32 unwashed sand shovels.

The roof also...

The roof also...

Built by the former owner, the courtyard roof (west terrace) remained unfinished. Alain ensured the implementation of the cover. The slates are attached to the hook on the frame.

Support wall

Support wall

Very damaged, the south wall supports a terrace. It ends with two rows of blocks that have been supported. The stay remained in place. It will be hidden in the reconstituted wall.

Jambs to support the work plan

Jambs to support the work plan

Equipped with a trellis, the wall receives three stone jambs that will support the reinforced concrete worktop of the barbecue.

Amenities under the fireplace

Amenities under the fireplace

Under the future foyer, several locations are planned. One will evacuate ashes, the other will accommodate the logs. Firebrick mice complete the construction.

Mason and grout the wall

Mason and grout the wall

Right side, the south wall has found all its superb. The whole is masonry and grouting done using a bastard mortar. Same thing for the shale pillar next to the gate.

Tile the work plan

Tile the work plan

The worktop is covered with tiles purchased from a local manufacturer. The edge of the first row is beveled to the grinder to ensure a harmonious junction with the tiles placed on the edge.

Protect the joints from the gel

Protect the joints from the gel

Later, linseed oil with turpentine will be applied to the joints (redone) to protect them from freezing.

Sliding ash drawer

Sliding ash drawer

Practical, the ash drawer in cut sheet metal (2 mm thick) on the grinder slides on handmade metal rails.

Install a fixture

Install a fixture

Ready for grilling! A luminaire installed against the wall facilitates the preparation of meals after dark.

Schist and rammed earth to renovate the walls

Schist and rammed earth to renovate the walls

Our reader has renovated the adobe walls in the tradition. The shale bed prevents capillary rise. Stabilized with lime, the raw earth is compacted in a formwork (bunching). Formerly the height of the basement of the houses indicated the social rank of the owners.

Cover with plaster

Cover with plaster

The rammed earth is coated with lime based on a homemade recipe. Its beautiful ocher color comes from the sand extracted from the quarry of Rheu, near Rennes.

Apply a whitewash

Apply a whitewash

By diluting the residues of plaster with water, our reader made a whitewash applied with an old paintbrush on the cement boards of the French window (south wall).

Slabs and pavers of cement for the terrace

Slabs and pavers of cement for the terrace

The large terrace is composed of a mixture of slabs and pavers of cement. The alternation of the two formats breaks the monotony of the composition on such a surface. The concrete slab (7 to 10 cm thick) was delivered by a truck spinner. The concrete slabs are sealed with a homemade bastard mortar.


Video Instruction: Barbecue at home top terrace