Sunday, January 13, 2019

Construction of single-layer walls made of Ytong Enero blocks



Single-layer walls are the optimal solution for investors who value the speed of brickwork and accuracy. The lack of additional insulation layers significantly reduces the duration of construction and protects the investor against manufacturing errors, also in the load-bearing structure. Often, a wall that is supposed to be insulated is made with less accuracy and worse materials. The time of making single-wall walls is often 2-3 times shorter than the rise time of laminar walls.

Single-layer walls are the optimal solution for investors who value the speed of brickwork and accuracy. The lack of additional insulation layers significantly reduces the duration of construction and protects the investor against manufacturing errors, also in the load-bearing structure. Often, a wall that is supposed to be insulated is made with less accuracy and worse materials. The time of making single-wall walls is often 2-3 times shorter than the rise time of laminar walls.

It is worth noting that laying an additional layer of insulation from materials such as polystyrene or rockwool may worsen the acoustic insulation by up to 3-5 dB. In the case of homogeneous materials and walls, this phenomenon does not occur.

Specially dedicated material for single-layer walls are YTONG ENERGO blocks, which are available in two thicknesses: 36.5 and 48 cm . 36.5 cm thick blocks allow you to build walls, which, without additional insulation, meet the stricter thermal standards for residential buildings. However, YTONG ENERGO with a thickness of 48 cm does not require insulation, even in the construction of energy-efficient houses, where the heat transfer coefficient U must be less than or equal to 0.20 [W / (m2▪ K)].

YTONG ENERGO blocks are masonified with a thin SILKA-YTONG adhesive mortar, 1- 3 mm thick . There are also no vertical joints - they are replaced by a tongue and groove system. Such masonry is possible due to the very high dimensional accuracy of the blocks (± 1.5 cm ). The blocks adhere closely to each other and the heat remains at home.

Choosing YTONG ENERGO blocks, you can opt out of additional thermal insulation, and thus, generate savings already at the stage of building a house. In the future - significantly reduce the heating costs of the building.

Bricklaying instructions

Bricklaying of walls made of YTONG ENERGO blocks is carried out on the same principles as bricklaying of walls made of other materials.

Masonry of each wall should be started by laying a damp proofing on a board or foundations. For walls made of 48 mm wide YTONG ENERGO blocks , the recommended foundation width is at least 32 cm .

Precise leveling of the first layer is extremely important, because any errors and deviations will affect the entire structure. For this reason, the first layer of blocks is laid on a cement mortar with a ratio of cement to sand 1: 3, starting from the corners. As a result, the first layer blocks can easily be leveled using a leveler and a rubber mallet.

Subsequent layers of blocks are laid on the mortar for thin joints with a thickness of 1-3 mm . Before applying the mortar to the surface of the blocks, they should be slightly undone and cleaned of dust.

YTONG blocks have a tongue and groove connection, thanks to which the mortar should only be filled with horizontal joints.Vertical joints are filled only in places where there is no connection to the tongue and groove, eg in corners or cut blocks.

The mortar is applied with a trowel. In the case of YTONG ENERGO blocks, gr. 48 cm is best used with a 24 cm wide trowel.

lintel

Lintels in walls made of YTONG ENERGO 48 cm wide can be made as reinforced concrete beams or finished YTONG YN and YF elements. The simplest solution is to use two YTONG YN beams with a width of 24 cm arranged in parallel, or a lintel combined with two YTONG YF beams. 17.5 cm and one YF 11.5 cm . More demanding investors can make a lintel with two20 cm thick YTONG YN beams and fill the resulting gap with insulation to improve the thermal parameters of the wall.

The advantages of YTONG ENERGO blocks

• The hottest structural material thanks to the λ = 0.095 W / mK coefficient

• Single-layer wall with a coefficient of U = 0.19 W / m2K (width 48 cm )

• Available in 36.5 and 48 cm thicknesses

• No thermal bridges thanks to thin joint mortar and tongue and groove joints

• Ergonomics of erecting walls thanks to mounting brackets

• Minimal consumption of mortar (5-7 l / m2)

• Fire safety - non-combustible material (A1) and fire-resistant (REI 240)

• Vapor permeable wall

• Produced from only natural ingredients: lime, sand and water