Radiant heat manifolds

Isolation

Main objective - to deter the loss of heat downwards. The heat is going in the heat of PEX pipes. Runs on all materials in the building as a thermal insulating layer for use in the construction of gender.From any insulating material performed must meet the following conditions are allowed:

Heat resistance insulating layer to be greater than the sum of pex tubing heat resistance heating layer (including termination coatings, PE pipe) with a maximum heat load for heating. The greater the heat load, the thicker insulation.The higher heat resistance subsequent coating, the thicker insulation.

The most common insulation material in modern construction is Pex polystyrene. We recommend the use Pex polystyrene density of 35 kg/m3 (PEX tubing). Pex lower density polystyrene is resistant to mechanical stress, is destroyed, if not used with care and loses its mechanical and thermal insulating properties, particularly in light of the ongoing construction work is a long time from the end of the tube assemblies pex tubing heated water to fill their headphones. Pex polystyrene density of 50 kg/m3 and extrusion, are used in systems with high mechanical stress (auto-centers, warehouse complexes with heavy wheel loaders, heated roads, etc.).

Reinforcement fabric. PEX Rails

Gain stage and the cell diameter Bar Reinforcement chosen on the basis of soil structure based on the features of the premises (PEX pipe), its goals, pressure, etc. In the standard design for easy installation by means of a grid, usually with a cell 150x150 mm; 4-5 mm rod. If Pex on polystyrene, is a real reason for the layout of the contours of water heating. PEX pipes are connected to it with plastic fasteners.

To put extra power screed in some cases double profit: a second layer mesh is on the contours of water heating. PEX Rails in Europe because of the widespread use of type stack "Snake" often mounting rails and clips, which are arranged on polystyrene.

Sometimes Reinforcement fixing and / or are using PEX U-shaped anchors. Pex Pipes contours vschelkivaetsya mounting rails in the holes (PEX pipe slots). In this case, a layer of reinforcement, which over the tubes.

Pex damping tapes

Attenuation band is placed around the perimeter of the premises before pouring concrete. Serves to compensate thermal expansion of concrete sleepers on heating. It is produced, usually polyethylene foam width of 100-120 mm and a thickness of 8-10 mm.

PEX pipes

Water heated in accordance with Site Drawing (draft water heating) stacked. Number of meter tube is documented in the table, balancing reservoir, connected to the project record. Based on the evidence of mounting structural engineer determines the need for tuning (balancing adjustment) of PEX pipes table. In general, apart from the actual length of pipe from the project by up to 10%, the amendment balancing reservoir is not necessary.

Hydro testing

Recommended Prior to filling the contours of the water floor heating concrete in order to check the system for leaks. Review of the system is in line with the national building codes. Normally, the system checks the pressure of 3.4 bar for 24 hours.

When you fill Pex Kühlmitteleinrichtung consistent opening and closing circuits. For a complete removal of air from the PEX piping and equipment.

It is recommended that the system of floor heating under pressure the whole course of the remaining civil works (equipment, splice, assembling finished coatings) depart regularly monitored the degree of pressure to be sure always to the production of other work is not dense systems.

Pullers

Pouring concrete is performed after mounting the contours of the water heating and testing activities. The thickness of the screed must be at least 30 mm above the pipe, mark the specific recommendations should not be less than M-300 (V-22, 5). In special cases (very important and / or thermal load on the electric heaters, etc.) thickness of concrete sleepers and designer brands, calculated on the properties of the object (in this case) is necessarily a separate calculation of the heat panels. The minimum thickness of screed (30 mm above the pipe) is achieved mainly due to non-physical characteristics and a uniform temperature distribution on the surface of the hot plates too.

When the thickness of the screed over 150mm require separate calculation of the thermal system of the Pex hot plate with the introduction of specific correction factors.

For comparison, the weight of 1 square meter of relations with the 50 mm thickness of 350-400 kg

The greater the strength of the bond, the more time is needed to view them at a stable temperature regulation from the date of recording.

Thick screed represents more innertsion systems. The lower the thermal conductivity of the bond, the higher the desired temperature of cooling water.

When the joints mitigation measures in relation to the size of the hot plate is divided (every 15 meters) in parts of the seams of compensatory measures, the pipes, back-junction in a protective corrugated tube (300 mm to the left and right to the seam extension). It is recommended that the heating circuits intact in a compensatory land, that is, expansion joints may only print and pack back circuit lines cross.

The system of hot water allows the use of plasticizers in concrete. Used in modern design has got a device with a plastic-tie fibrils.

To accelerate the drying of the concrete slab, which usually lasts about 3-4 weeks, and reach an acceptable level of relative humidity, you can) a combination of heating source (including a provisional settlement Heat. Recommended coolant temperature in this case should not exceed 30 ° C.. The use of water systems, underfloor heating mode with the "drying" has shown many examples of the shortening of construction, especially in places with large areas.

Relative humidity in concrete is not more than 85%. In the case of laying of parquet and other wooden structures have, relative humidity must not exceed 60%. Should in all cases, follow the instructions of the manufacturers and suppliers of materials and technology to comply with design and production work. So usually requires 2-4 weeks from the date of pouring concrete floor before terminating occupancy.