Is it difficult to build a cavity wall?
Correctly built cavity wall is characterized by long service life. The durability of walls built of ceramic façade walls is particularly high – because this type of material gives the warranty that the façade will be an attractive decoration of the house for many generations
In order to achieve this goal in every phase of building process, the fact of the use of ceramic façade walls shall be thoroughly analyzed – from the phase of design, though foundation works, logistics of supplies, selection of anchoring system and façade layer up to the process of pointing, cleaning and protection.
Let us start from the beginning..
The important thing is to consider the application of specified facade bricks in the architectonic and building design (views plans and specifications).Therefore it will be possible to determine if the whole faced of the object will be erected in the cavity wall technology or the cavity walls will be combined with double – leaf wall coated with thin layer plaster. As a result of such combinations, very interesting visual effects can be achieved i.e. created by the colours, surface structures and space factors. But the correct designing of interfaces – passages from cavity wall into double – leaf wall system and their execution is very important in this case. Properly completed passage will make it possible to prevent so called thermal bridges – locations on the wall being the areas of “heat leaks "".
The width of the foundation encompassing the following items: width of load bearing wall + width of thermal insulation with ventilation void + width of facing layer.
The foundation shall be insulated from the ground (vertical insulation) as well as from cavity wall (horizontal ventilation).
Owing to the natural colour palette of EkoKLINKIER bricks, they are characterized by so called mélange effect – consisting in insignificant diversification of shades in selected colour in the framework of individual bricks as well as even in the framework of the same face. This effect makes to possible to create a beautiful façade with natural expression, but …. In order to achieve this goal, the investor shall order the bricks for the whole façade before the commencement of the construction. Therefore all bricks will be supplied and the recommendation of the manufacturer regarding the use of bricks originating from various pallets (minimum 5) will be possible to accomplish.
The cavity wall is an extremely favourable solution in respect of building breathing, provided that a correct ventilation layer (2 ÷ 4 cm) will be created between the thermal insulation and facing brickwork. A correctly designed and built cavity wall enables the favourable exchange of gases including water vapour . such ventilation void prevents any potential moistening or biodegradation.
The mortar is the next factor influencing the durability of the façade built of bricks. The mortars dedicated to ceramic clinker bricks – without addition of lime – should be used for that purpose.
Joints between correctly incorporated bricks shall be filled with pointing mix. The pointing can be carried out in the phase of bricklaying – in such case a bricklaying mortar (coloured in mass) is used for pointing. It is also possible to carry out the pointing later - as a rule in about two weeks after the bricklaying. Then we can use a grey mortar (lower price) for bricklaying and a bricklaying mortar (coloured in mass) is used for pointing (higher price). The disadvantage of this solution most often is the necessity to erect the scaffolding again. Independently on its method, the pointing is recommended by the civil engineers as well as by the manufacturers of bricks and mortars.
Individual layers of cavity walls must be property integrated together. The anchors are used for this purpose. There are many commercially available anchoring systems – they can be selected from among products offered by renowned manufacturers or produced using the simplest method – cutting of steel wire in an appropriate manner.
The following actions are important in course of the construction phase of the facade built of ceramic bricks:
accurate layout of the bricks in horizontal and vertical layers; precise cutting of bricks and use of proper cutting tools for this purpose – like diamond saws; immediate removal of any spills and contaminations originating from mortar – their later elimination can be even impossible, protection of individual layers against weather conditions – covering the bricks with plastic foil after finished working day. In order to maintain long lasting effect of the façade brickwork, its proper protection in the form of impregnation and hydrophobization is necessary. As a result of such treatment the bricks and pointing mix become water “repellents”. Additionally, the facades endangered by vandalism can be protected with the compound enabling the removal of an unwanted graffiti in future.
The facades built of bricks are the decoration of the house. Their correct execution is more than half of success – however their disadvantage is the impossibility to make any correction on completed façade without causing visible traces.
In order to achieve this goal in every phase of building process, the fact of the use of ceramic façade walls shall be thoroughly analyzed – from the phase of design, though foundation works, logistics of supplies, selection of anchoring system and façade layer up to the process of pointing, cleaning and protection.
Let us start from the beginning..
The important thing is to consider the application of specified facade bricks in the architectonic and building design (views plans and specifications).Therefore it will be possible to determine if the whole faced of the object will be erected in the cavity wall technology or the cavity walls will be combined with double – leaf wall coated with thin layer plaster. As a result of such combinations, very interesting visual effects can be achieved i.e. created by the colours, surface structures and space factors. But the correct designing of interfaces – passages from cavity wall into double – leaf wall system and their execution is very important in this case. Properly completed passage will make it possible to prevent so called thermal bridges – locations on the wall being the areas of “heat leaks "".
The width of the foundation encompassing the following items: width of load bearing wall + width of thermal insulation with ventilation void + width of facing layer.
The foundation shall be insulated from the ground (vertical insulation) as well as from cavity wall (horizontal ventilation).
Owing to the natural colour palette of EkoKLINKIER bricks, they are characterized by so called mélange effect – consisting in insignificant diversification of shades in selected colour in the framework of individual bricks as well as even in the framework of the same face. This effect makes to possible to create a beautiful façade with natural expression, but …. In order to achieve this goal, the investor shall order the bricks for the whole façade before the commencement of the construction. Therefore all bricks will be supplied and the recommendation of the manufacturer regarding the use of bricks originating from various pallets (minimum 5) will be possible to accomplish.
The cavity wall is an extremely favourable solution in respect of building breathing, provided that a correct ventilation layer (2 ÷ 4 cm) will be created between the thermal insulation and facing brickwork. A correctly designed and built cavity wall enables the favourable exchange of gases including water vapour . such ventilation void prevents any potential moistening or biodegradation.
The mortar is the next factor influencing the durability of the façade built of bricks. The mortars dedicated to ceramic clinker bricks – without addition of lime – should be used for that purpose.
Joints between correctly incorporated bricks shall be filled with pointing mix. The pointing can be carried out in the phase of bricklaying – in such case a bricklaying mortar (coloured in mass) is used for pointing. It is also possible to carry out the pointing later - as a rule in about two weeks after the bricklaying. Then we can use a grey mortar (lower price) for bricklaying and a bricklaying mortar (coloured in mass) is used for pointing (higher price). The disadvantage of this solution most often is the necessity to erect the scaffolding again. Independently on its method, the pointing is recommended by the civil engineers as well as by the manufacturers of bricks and mortars.
Individual layers of cavity walls must be property integrated together. The anchors are used for this purpose. There are many commercially available anchoring systems – they can be selected from among products offered by renowned manufacturers or produced using the simplest method – cutting of steel wire in an appropriate manner.
The following actions are important in course of the construction phase of the facade built of ceramic bricks:
accurate layout of the bricks in horizontal and vertical layers; precise cutting of bricks and use of proper cutting tools for this purpose – like diamond saws; immediate removal of any spills and contaminations originating from mortar – their later elimination can be even impossible, protection of individual layers against weather conditions – covering the bricks with plastic foil after finished working day. In order to maintain long lasting effect of the façade brickwork, its proper protection in the form of impregnation and hydrophobization is necessary. As a result of such treatment the bricks and pointing mix become water “repellents”. Additionally, the facades endangered by vandalism can be protected with the compound enabling the removal of an unwanted graffiti in future.
The facades built of bricks are the decoration of the house. Their correct execution is more than half of success – however their disadvantage is the impossibility to make any correction on completed façade without causing visible traces.
