+48 500 409 109

How much does an Oborniki sandwich panel cost and what lies behind the name?

The name “Oborniki panel” is a colloquial term for a sandwich panel. It does not describe a single core or a single quality. In this group you will find wall and roof elements with different parameters. The price therefore depends on the specific set of features. Before purchase, it is necessary to establish what the partition is to do and which items the offer includes. The panel consists of a core bonded to facings. Popular core groups are PIR, PUR, mineral wool and EPS. The materials differ in thermal conductivity, behaviour in fire and mass. The word “Oborniki” alone does not allow any of these properties to be assessed.

By |2026-11-14T13:13:51+01:002022-12-13|Building academy|Comments Off on How much does an Oborniki sandwich panel cost and what lies behind the name?
Read More

Replacing an asbestos-cement roof with modern fibre cement sheets: planning the work

Replacing an old roof begins with identifying what is already on the building. A similar sheet shape does not tell you whether the sheets contain asbestos or whether the structure is suitable for further use. New corrugated fibre cement sheets are a separate material choice. Asbestos-free fibre cement can preserve the corrugated character of the roof slope, but it does not remove the need to plan the dismantling, the protection of the building and the correct installation of the new system. First, gather the available documents, the renovation history and clear markings. The composition should not be identified solely by colour or by the age of the building. An old roof may contain elements from different periods. If asbestos is suspected, corners should not be broken off, drilled or samples taken independently.

By |2026-11-15T19:36:14+01:002022-11-21|Building academy|Comments Off on Replacing an asbestos-cement roof with modern fibre cement sheets: planning the work
Read More

How can you reduce the cost of sandwich panels? Seven decisions before ordering

Saving on sandwich panels is best started by reducing incorrect assumptions. Too large a surplus, an unnecessary coating variant or poorly planned transport increase the bill. Conversely, randomly lowering parameters can raise operating costs. Seven decisions allow you to compare orders while maintaining the same enclosure function. Describe the temperature, humidity and manner of use of the interior. Establish thermal, fire and load-bearing requirements. Only then choose the thickness and type of core. The cheapest panel in stock will not be a saving if it requires additional insulation or does not fit the project.

By |2026-11-14T13:14:03+01:002022-10-23|Building academy|Comments Off on How can you reduce the cost of sandwich panels? Seven decisions before ordering
Read More

When does a sandwich panel roof suit the extension of an old building?

Roof panels can form part of the extension of an existing building. Their use must, however, be matched to the structure and to the new function of the interior. The junction between the old and new parts is often the most difficult. Differential movements, drainage and loads at the higher wall all come into play. The panel should be selected after these conditions have been established. Information is needed on the structure, the condition of the materials and earlier alterations. Corrosion of steel, dampness in timber or damage to masonry can limit the possibility of using existing elements. The assessment is carried out on site. An old drawing alone does not confirm the current condition.

By |2026-11-14T13:15:12+01:002022-09-21|Building academy|Comments Off on When does a sandwich panel roof suit the extension of an old building?
Read More

What to check before specifying load-bearing trapezoidal steel sheet

The choice of structural trapezoidal sheet depends on the complete load-bearing system, not on profile height alone. The sheet transfers loads between supports and forms the substrate for subsequent roof layers. Steel thickness, span and support arrangement must be checked, along with loads including snow, wind and any installations. Manufacturer tables serve calculations for a specific partition, so a T18 or T35 designation is not enough. Wind pressure and suction must also be distinguished, and connections to the support verified. The designer decides on the sheet as a load-bearing element of a defined system.

By |2026-11-15T00:23:22+01:002022-09-09|Building academy|Comments Off on What to check before specifying load-bearing trapezoidal steel sheet
Read More

Is a metal picket fence suitable for your plot?

Metal pickets work well when you want a tidy appearance with limited maintenance, but they will not always provide the same privacy as a full screen. Before deciding, assess the entire bay together with the posts, because the cost of a single picket does not reflect the properties of the finished fence. Pay attention to the structure, which must account for height, span and the actual sheltered area. Also check the condition of existing posts and foundations if you plan to replace the infill. Remember that coated steel only needs washing and coating checks, not impregnation like raw wood.

By |2026-11-14T20:38:02+01:002022-08-02|Building academy|Comments Off on Is a metal picket fence suitable for your plot?
Read More

How to compare T18 and T35, sheet thickness and the cost of fleece?

T18 and T35 describe different profile heights, but they are not enough to select a covering. You need to check the drawing, steel thickness, supports and the intended use of the sheet. The price also depends on the coating and the coverage. Fleece can help limit condensation dripping, but it needs to dry out. It does not replace insulation or a tight roof. The profile affects stiffness and how the sheet performs. A taller trapezoidal profile may offer different possibilities under the same material conditions. However, this does not mean that every T35 is automatically suitable for any support spacing. Data for the specific product and loads are required.

By |2026-11-14T13:13:34+01:002022-06-23|Building academy|Comments Off on How to compare T18 and T35, sheet thickness and the cost of fleece?
Read More

Why does a metre of roof panel cost differently from a metre of wall panel?

Roof and wall perform under different conditions. They have different profiles, connections and loads. That is why their prices per metre should not be compared without describing the variant. Even an identical core and thickness do not make an identical product. A reliable quote separates panels, accessories and installation. It also lets you check what you are paying for in each part of the building. A roof panel must work with the slope and drainage system. Its outer skin usually has a pronounced trapezoidal profile. A wall panel may have a flat or lightly profiled surface. Connections are designed for a specific layout and fixing method.

By |2026-11-14T13:14:05+01:002022-06-13|Building academy|Comments Off on Why does a metre of roof panel cost differently from a metre of wall panel?
Read More

How does a sandwich panel work and what should you know before building?

A sandwich panel combines several functions in a single element. Its core and facings work together, so they should not be assessed separately. The panel can form a wall or roof once fixed to a suitable structure. The connections also determine durability. This guide explains what you are actually buying and where the limits of the material itself lie. A typical panel has two facings bonded to a core. The steel surfaces and the material between them together carry loads. Adhesion at the interface between the layers is important. Delamination should therefore not be treated as a minor cosmetic defect.

By |2026-11-14T13:14:20+01:002022-04-05|Building academy|Comments Off on How does a sandwich panel work and what should you know before building?
Read More

How to estimate labour for installing sheet metal roofing

In Poland, the labour cost of laying sheet metal on a roof depends primarily on the roof's shape and the scope of work, not solely on the number of square metres of slope. Before comparing quotes, check whether the price covers substrate preparation, membrane, counter-battens and battens, or only the laying of sheets, and whether valleys, ridges, chimney flashings and gutter installation are priced separately. For a renovation, add removal of the old covering, protection of the building and waste disposal. Without this list, a rate per metre says little.

By |2026-11-14T17:11:18+01:002022-01-29|Building academy|Comments Off on How to estimate labour for installing sheet metal roofing
Read More
Back to top