Three different methods are applied for thermal insulation in buildings: internal, external and sandwich wall.
The best practice to prevent the formation of thermal bridges and to ensure the continuity of the insulation is the "sheathing" application.
Sheathing is the covering of the outer shell of the building with thermal insulation materials in order to prevent heat loss and gains according to seasonal conditions. Technically, it is the thermal insulation applied to the outer surface of the building in order to reach the required heat transmission coefficient without creating a thermal bridge.
WHERE IS THE COVERING MADE?
Sheathing can be applied to the exterior walls of the buildings, roofs, areas with soil contact, floors that separate the floors, parts facing unheated sections such as warehouses, garages, and cold storages.
ADVANTAGES OF HEATING
It completely insulates all kinds of beams, columns, beams and similar reinforced concrete structural elements on the outer surface of the building and prevents the formation of thermal bridges.
It prevents cracks and damages that may occur in the main material due to temperature differences by wrapping the building from the outside like a mantle.
Summer and winter temperature differences on the outer walls can reach up to 5oC.
The outer walls of the building are protected from all the effects of the external environment.
The risk of condensation is minimized.
It provides both heat and water insulation.
A sheathing application made in accordance with the technique provides energy savings close to fifty percent.
Since the heat is distributed evenly in the buildings with sheathing, there is no condensation and air flow. In this way, a comfortable living space is obtained.
It contributes to the protection of the environment as it reduces fuel consumption.
It extends the life of the building by protecting the reinforcements inside the concrete on the exterior walls of the building against corrosion.
BUILDING MEASUREMENT STAGES
The number of facades to be worked on is determined.
The width and length of the facades are measured separately.
The gaps in the facade (window, balcony, door, etc.) are measured separately.
The total area of all facades is calculated.
The total area of all the spaces on the facade (windows, balconies, doors, etc.) is calculated.
Sheathing TECHNICAL SPECIFICATION
Purpose: The most important of the measures to be taken to ensure energy efficiency in buildings is to bring the number of heat-permeable floors of the exterior of the building to the desired level. For this, what needs to be done is to apply a thermal insulation system from the outside to the structures. The purpose of the thermal insulation system is to sheath the building, to prevent the penetration of high or low heat outside and to maintain the desired temperature inside. The sheathing system can be applied from the outside as well as from the inside or as a sandwich system between two walls. However, sufficient efficiency cannot be obtained from such systems.
MATTERS TO BE CONSIDERED BEFORE INSULATION APPLICATION
Particular care is taken not to damage glass, wood, aluminum and other existing building elements during renovations.
Surfaces on which exterior thermal insulation will be applied should not be damp, flooring and liquids should be dry.
Moisture must be prevented in buildings where exterior sheathing will be applied.
Extensions, apparatus, clamps on the facade should be removed and adjusted to be carried on the system.
Pipes and cables must be placed on top of the system. Rain gutters should be outside the top coat system and should be completed before the insulation application begins.
In scaffolding use, the length of the scaffolding clamps should be suitable for the thickness of the system, the distance between the wall and the scaffolding should be sufficient for worker safety, and water leakage from the holes opened for the scaffolding clamps (curving upwards) should be prevented.
For a regular application, the system must be protected against direct sunlight, rain and strong winds. In order to provide a problem-free application and a comfortable working environment, the elements of the exterior thermal insulation system should be stored appropriately. During the work, care should be taken to keep the adhesive, surface plaster and topcoat materials in a dry and cool environment between +5°C and +30°C; profile, reinforcement mesh, etc. System elements should be kept in such a way that they will not be deformed, and care should be taken to store the heat insulation boards in a way that they do not get wet.
In new buildings, interior plastering and painting works must be completed and the walls must be dry so that there is no accumulation of moisture. Failure to comply with these criteria may result in shifts in the gaps in the plates or in the anchors due to insufficient drying times.
It is recommended to use scaffolding mesh to protect the exterior from sun, rain and wind.
Heat insulation boards can only be installed after all surfaces have been properly covered and the necessary connections have been made resistant to heavy rain.
One of the most important functions expected from roofs is to provide waterproofing. When tile roof coverings are damaged due to outside weather conditions and being walked on, they begin to fail to fulfill the duties expected from them, when this situation occurs, the main carrier elements of the roof and the roof floor are exposed to water. Applications made to restore the old performance of tile roof covers are called roof transfer applications.
HOW TO MAKE ROOF TRANSFER
Roof transfer application is generally carried out in 5 stages.
Control of Tiles: Roof tiles are checked and broken ones and reusable ones are separated from each other. Considering the cost of transferring the roof, care should be taken not to damage the tiles during the tile control. After all applications are completed, the tiles are covered on the roof surface again.
Replacing the Waterproofing Cover: The old waterproofing cover is removed and replaced with a polyester felt under-tile cover or a membrane bonding application is made with the help of a torch.
Reinforcement of Roof Bearings: Roof bearing elements (wooden frame) are checked and damaged ones are replaced with new ones.
Hidden Stream / Stream: If there is a hidden stream on the roof, the penetration of rain water is prevented by insulating with the pooling technique. Suspended streams on the roof are replaced with new ones.
Chimney and Elevator Tower: The entrance of water is prevented by applying a 25 cm membrane towards the roof covering and at least 15 cm upwards to risky areas such as the elevator tower and chimney edges.
Renovation of Tile Roof Coverings: In order for the tiles to be laid, under-tile boards must be nailed on the rafters on the roof and a qualified waterproof bituminous membrane cover must be laid on these wooden coverings. This cover is used to prevent the water that may leak from the tiles from passing down. Roof tiles should be checked one by one and broken tiles should be replaced with new ones. Damage tiles during maintenance and inspection