Concrete pitched roof. Tilt-Up technology for roofing

Monolithic concrete floors are considered the most reliable and durable. There are solid monolithic and often ribbed. The latter give savings on concrete and reinforcement, and have less weight. And when using energy-efficient void formers, the floor will have good soundproofing and thermal properties.

One of the most optimal slabs is the often ribbed precast slabs of the MARCO technology:

We will talk about them in a separate article.

As a rule, the listed monolithic floors in the construction of private houses are used as interfloor and attic. Especially common for flat roofs. But to fill in a monolithic pitched roof in the form of a gable or hip roof, and even immediately insulated - I have not seen it anywhere. Shots taken from a quadcopter at one of the facilities under construction:

The process is clear. Workers use a concrete pump to pour a sufficiently thick concrete mixture onto the pitched roof. But what it is made of - you can't tell right away. Only grooves, recesses in which the fittings are laid are visible. It seems that this is aerated concrete, as when pouring MARCO covers? And the house is white like blocks of the same material. But no. The facility is located in the USA, and there are no aerated concrete factories there (it was, in my opinion, Ytong, but it also closed) Houses there are either frame or monolithic.

Overlappings are assembled using this technology:

Styrofoam from the technology of permanent formwork. I am not claiming that these are the empty-formers in the photographs, but the principle is the same. True, the builders saved on the reinforcing mesh on the roof.

From the inside, the support system is made of roof beams with an additional support supported on the interfloor ceiling:

From the description, I understood that the wooden beams would be dismantled. And the space on the second floor will be combined with the under-roof. An unusual solution. And the beams will be used at another facility, which is being built by the developer in pcs. Kentucky. The photographs show foundations and similar houses nearby.

This concrete roof technology came from the technology of pouring insulated wall panels (immediately on site). Called Tilt-Up:

I wrote about this technology in this article

The top coating on these houses is a seam roof (painted iron sheet):

The company builds houses with gable and gable roofs. From the inside, the roof is plastered or sewn up with gypsum board.

Cornices are completed from OSB sheets and bars. The house itself is also monolithic, assembled from these cubes:

We have not received it widespread. The fire hazard and toxicity from the combustion of polystyrene scare away customers. Although, building on it is very fast.

Where can such technology be in demand? Taking into account the removable rafter system - only from companies who build cottage villages or at least work in this segment of private construction. Those. the roof was poured, removed from one object - transported to another. According to my estimates, the cost of such a concrete roof is 2,000 rubles / m2 without finishing roofing. And it can be anything. The most economical in this case will be decorative roll tiles:

Cost: RUB 1,750 per roll 8m2. The roll can be glued to the mastic. And for reliability, fix it with dowels with a wide head on the edge. In total, the cost of an insulated roof will be no more than RUB 3000 / m2.

I know that a hip roof, of the same area, with overlapping without insulation and covered with metal tiles will cost 350-450 thousand rubles. rub.

The roof using this technology is quite warm (foam is one of the best insulation materials), like the walls of the house. Moreover, for the US climate. Tilt-Up technology or our panel apartment buildings are proof of this. I would like to hear the opinion of experts and those who build houses - are they interested in such a solution to the construction of roofs?

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Photos are taken from open sources, from liteform.com and Yandex. Pictures

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