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Planning a roof replacement step by step

Plan a roof replacement by inspecting the structure first, not by ordering the covering. Check the roof truss from outside and from the attic, looking for leaks, deformation and damaged timber; also assess supports, connections and chimneys. New lightweight sheet metal will not strengthen a weakened truss, and the designer determines its suitability and any necessary reinforcement. Only then establish the scope of formalities, choose the covering and insulation, and plan demolition, acceptance of hidden layers and protection of the house. Leave room in the schedule for repairs revealed after the old material is removed.

By |2026-11-14T18:55:29+01:002025-12-18|Technology and applications|Comments Off on Planning a roof replacement step by step
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How do you carry out a survey of an old roof before ordering BIPV?

An accurate survey allows you to order a photovoltaic roof tailored to the actual house. Old project drawings do not always show today's geometry, the position of chimneys and later alterations. In a BIPV system, the formats of the active elements affect the entire division of the roof slope. A good measurement helps you use the space, limit random infill and maintain a calm rhythm of the covering. It should cover more than just the roof area. Two slopes with the same area may require a completely different panel layout. Their length, width, shape and the arrangement of obstacles all count. A narrow strip at the edge does not have to accommodate an active element, although it increases the total square metreage. That is why a price based solely on area does not yet show the real configuration.

By |2026-11-15T17:19:44+01:002025-12-01|Technology and applications|Comments Off on How do you carry out a survey of an old roof before ordering BIPV?
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Tile-effect or trapezoidal steel sheets: which suits your roof?

The choice between a tile-profile metal sheet and trapezoidal sheeting depends mainly on the roof geometry and the required pitch, not on the material name alone. Check the minimum pitch permitted by the documentation for the specific product and whether the support layout matches its load table. Compare actual samples and the cutting plan for the sheets, because a small fragment will not show the shadows across the roof. Also compare the full cost of works, including transport and accessories. Leave the profile selection to the designer, who will relate the data to local conditions.

By |2026-11-14T22:29:00+01:002025-11-27|Technology and applications|Comments Off on Tile-effect or trapezoidal steel sheets: which suits your roof?
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Planning safe snow removal from a roof

Snow depth alone cannot tell you whether a roof is overloaded. What matters is the load the structure was designed to carry, the weight of the snow and where it has collected. Wet snow can be much heavier than an equally deep fall of dry powder. Parapets, adjoining higher walls and changes in roof level deserve particular attention because wind can build up drifts there. If the structure changes shape, develops cracks or makes unusual sounds, restrict access to the affected area and seek a prompt professional assessment.

By |2026-11-14T18:53:57+01:002025-11-26|Technology and applications|Comments Off on Planning safe snow removal from a roof
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When does a panel roof need additional insulation and how can you check?

A well-selected panel roof can provide the required thermal insulation without an additional layer. Additional insulation is sometimes considered after a change in building use or with an older, too-thin panel. However, material should not be added without analysis. Thermal and moisture conditions and loads change. The existing roof must first be assessed. Determine the panel type, thickness, facings and joints. Look for markings and documentation from the original order. The height of the visible rib alone does not determine the insulation thickness. Measurements must be related to the specific product cross-section.

By |2026-11-14T12:01:29+01:002025-11-23|Technology and applications|Comments Off on When does a panel roof need additional insulation and how can you check?
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Installing modular metal roof tiles on a pitched roof

Controlling the roof plane's geometry before laying the first module is key, rather than correcting rows later. Before installation, check the structure, pitch and roof dimensions, as well as the diagonals and eaves line. The chosen model must be approved for the given pitch, and batten spacing follows from the profile geometry of the specific modular tile. Modules will not correct any unevenness of the slope; forcing alignment with screws can distort the sheet and hinder even laps. It is therefore worth confirming support evenness and detail compliance with the manufacturer's instructions before covering begins.

By |2026-11-15T02:35:28+01:002025-11-04|Technology and applications|Comments Off on Installing modular metal roof tiles on a pitched roof
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How to choose a repair for a leaking metal roof

Repairing a leak in metal roofing starts with establishing whether the water comes from rain or from condensation. Note when the dampness appears – a leak after rain driven by a strong wind may have a different cause from droplets seen in the morning in a cool garage. Check the fixings, sheet laps and flashings, as well as any services in the loft. Only after identifying the problem should you choose a sealant, replace an element or improve a detail, remembering that repair compound is not universal.

By |2026-11-14T18:55:27+01:002025-10-01|Technology and applications|Comments Off on How to choose a repair for a leaking metal roof
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Choosing a roof covering for a holiday cottage

First decide whether the holiday cottage will be used only seasonally or heated in winter as well, as this changes the roof requirements. Check the minimum pitch for the chosen profile, the support spacing and the loads, not just the appearance of the covering. For year-round use, condensation, ventilation and the continuity of the sealing layer must be assessed; in summer, protection against rain and overheating is key. A sandwich panel can combine covering and insulation, but it needs correct locks and support. Leave the design of the layer build-up to the designer.

By |2026-11-14T18:55:52+01:002025-09-05|Technology and applications|Comments Off on Choosing a roof covering for a holiday cottage
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Choosing compatible wall and roof panels for a house

For a house, wall and roof panels must be selected separately and then their connection checked. Heat, acoustics, fire protection and structure all matter. A single PIR thickness does not answer every question. Windows, the plinth and interior finish are also important. The panels should be part of the design of the entire residential envelope. A roof panel has a different task and geometry from a wall panel. It must drain water and work on the specified roof supports. The wall is subject to its own loads and contains openings. For this reason, one variant cannot be used everywhere based only on similar insulation.

By |2026-11-14T12:01:22+01:002025-08-24|Technology and applications|Comments Off on Choosing compatible wall and roof panels for a house
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How do you combine insulation of an old roof with the installation of BIPV roofing?

Replacing the roof covering with photovoltaic roofing is a good opportunity to check the roof insulation. The layers can then be assessed from the outside, and areas that are difficult to repair once the work is finished can be improved. BIPV does not replace insulation, but it can work together with it in a well-designed building envelope. The best result comes from a joint plan for airtightness, ventilation and covering. This gives the house both a new roof surface and a properly ordered roof. With the covering removed, it is easier to assess the condition of some of the layers and of the points where they meet the flashings. This is the moment to check for signs of moisture, the continuity of the insulation and the geometry of the roof slope. Returning to these areas later may require dismantling the new roof again.

By |2026-11-15T17:19:28+01:002025-08-17|Technology and applications|Comments Off on How do you combine insulation of an old roof with the installation of BIPV roofing?
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