Insulated prefabricated halls

Insulation or Cladding of Halls is presented as a separate section because it usually involves the renovation or repair of older halls or buildings. Insulation and cladding can be carried out using various technological methods. The layout of openings such as windows, doors, or roof skylights is often changed, and it is necessary to add a supporting steel structure.

Main Advantages of Hall Insulation During Renovations

Increased thermal comfort of halls and reduced energy consumption
We restore an up-to-date appearance to older halls
Possibility to modify openings according to the needs of new use of halls and buildings
Easy maintenance, long lifespan of cladding

Structures for Insulating Halls or Buildings

The structure of prefabricated halls is used only as a secondary support for the cladding or openings (windows, doors, skylights, etc.). Square tubes, so-called "jakly", are used for support, or for larger spans, METSEC purlins. For roofs with skylights, METSEC purlins or Upe rolled profiles are used. In case of higher requirements for fire resistance, fire-resistant coatings are applied.

Types of Hall Insulation

The same materials are used as for other types of halls. However, the specificity is the more complex scope of work compared to new buildings, as the existing layout must be addressed and a solution designed based on new requirements.

On the roof of small and medium-sized halls with a slope >5°:

For uninsulated halls, trapezoidal sheet metal, e.g., CB 45/333/0.75
For insulated halls, PIR sandwich panel, e.g., Kingspan KS1000 RW
Or mineral wool sandwich panel, e.g., Kingspan KS1000 FF

For roof cladding with a slope <5°, only a built-up type of roof with membrane can be used:

Thermal insulation from mineral wool boards with membrane – fire resistance of the roof > 30 minutes
Thermal insulation by combining mineral wool boards and polystyrene with membrane – fire resistance of the roof 0–30 minutes
Thermal insulation from EPS100 polystyrene – no fire resistance requirement

For walls, the following can be used:

For uninsulated halls, trapezoidal sheet metal with fiberglass skylights
For insulated halls, sandwich panels with mineral wool or PIR foam core
For designer facades, a grid with thermal insulation and Alubond panels
Designer panels, e.g., Benchmark by Kingspan

Price of Hall Insulation

The price of insulating a hall or building is mainly influenced by the type of panel used for the insulation. For example, mineral panels compared to PIR sandwich panels, which have twice the thermal performance of mineral panels while maintaining almost the same price. You can find a detailed price list in the hall price list. You can also use our configurator.

Photo Gallery

Insulation of the original hall - new condition

Insulation of the original hall - original condition

Insulation of the original hall - new condition Týn

Steps for Insulating or Renovating a Hall

Assessment of the Current Condition

Before we start the actual renovation or insulation of a prefabricated hall, we carry out a detailed assessment of the current condition to determine heat losses, identify potential thermal bridges, and evaluate the state of the original insulation. Based on this assessment, we can determine the exact scope and cost of the renovation. Most often, we repair halls that do not meet current standards and whose insulation no longer fulfills the requirements of today’s insulation standards for halls.

Insulation of Roofs and Walls of the Insulated Hall

The roof and walls of the hall are among the most important elements of hall insulation. There are several ways to improve the insulation properties of an insulated hall. Our company specializes in insulating halls using sandwich panels.

Insulation of the Roof of a Prefabricated Hall

A key element in reducing energy losses and increasing the comfort of the building is roof insulation on the prefabricated hall. A modern feature in hall renovation is the use of sandwich panels. These panels combine insulation with an outer layer, providing excellent thermal protection while being easy to install.

Sandwich panels offer several advantages:

Excellent thermal insulation: The insulating core of sandwich panels, often made of polyurethane or mineral wool, minimizes roof heat loss and ensures the building’s energy efficiency.
Easy installation: Sandwich panels are lightweight and easy to mount onto the roof’s supporting structures. This allows for quick and efficient installation, reducing renovation time.
Weather resistance: The outer layer of sandwich panels is made of metal material, which is resistant to weather conditions such as rain, snow, or UV radiation. This ensures long service life and low maintenance costs.
Aesthetic appearance: Sandwich panels are available in various designs and color options, so you can choose a design that matches your preferences and the style of the building.

Sandwich Panel Installation Process

Before starting the installation of sandwich panels, we carry out thorough preparation and check the condition of the existing roof structure. We verify the actual composition of the original envelope in advance. In insulated halls, a layered type of construction was previously used – a suspended metal sheet, purlins, insulation (wool or polystyrene) between them, and an aluminum sheet on top. Before insulating the hall, we also address the original electrical installations and heating, which often need to be replaced and dismantled before insulation. After dismantling the old sheets, we repair the coating on the original structure and further evaluate the condition of the supporting elements and purlins. If they are severely damaged by corrosion, they must also be replaced. We then install sheet metal elements and the sandwich panels themselves onto the roof of the building.

Insulation of the Walls of a Prefabricated Hall

Wall insulation during hall renovation follows similar procedures as for the roof, except that we often encounter the replacement of windows and doors and, after dismantling the cladding, we add a new secondary structure to support the cladding at the locations of windows, doors, and gates. The walls are insulated with sandwich panels installed vertically or horizontally. For renovated halls, we use panels starting from 120mm thickness for polyurethane (PIR) panels (U=0.18 W/m²K) and from 200mm thickness for mineral panels (U=0.22 W/m²K). Mineral panels are used only in cases of high fire resistance and non-combustibility requirements (designated DP1).

Replacement of Skylights

During hall renovations, we often also replace original infills, such as skylights fitted with wired glass, which have minimal thermal resistance. These skylights were most often built in an A-shape and were of larger dimensions. Before laying the new roof, we must completely dismantle them and either replace them with new ones made of aluminum structures with polycarbonate, which have reasonable thermal resistance, or remove them entirely.

Skylights are removed for two reasons:

Problematic area: Even after new insulation, leaks may occur here later. Skylights have up to 10 times worse thermal properties than sandwich panels or layered roofs with membrane. As a result, the hall overheats more in summer and heat escapes through the skylight in winter.
Light source: Even with expensive energy, LED lights fully replace natural light. They are inexpensive to install and operate. Therefore, it is necessary to consider the return on investment for new skylights in a renovated hall.

Replacement of Windows, Doors, and Gates

Old windows and doors can also be a significant source of heat loss. If possible, we recommend replacing old windows with modern, energy-efficient windows with double or triple glazing. Likewise, we replace entrance doors to minimize heat loss. It is also important to replace all original gates with modern sectional doors. Sometimes it is possible to use sandwich panels of greater thickness (60 to 80mm) for the doors. Standard sectional doors have a panel thickness of 40mm. If the doors have glazing, we recommend at least triple glazing with a thermal break.

If you are interested in the delivery of cladding or the reconstruction of a hall, you can contact us by phone at +420 728 305 164, by email at poptavky@promohaly.cz, or use our inquiry form or the configurator.

submit a non-binding inquiry Configure the hall