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How do you use the PIR calculator to match the thickness to the actual wall?

The PIR thickness calculator is useful for comparing options if it describes the wall you actually intend to build. The most common mistakes concern units, the properties of the masonry and omitting the facings. It is worth treating the calculation as the first stage of selection and then checking moisture, junctions and the compliance of the whole solution. Entering a random U-value into the form can lead to choosing insulation that is too thin or unnecessarily thick. The target follows from the function of the building, the operating temperature and the adopted requirements. A wall in a flat is analysed differently from a partition between a warm workshop and a cool store.

By |2026-11-14T10:38:40+01:002025-05-11|Knowledge base|Comments Off on How do you use the PIR calculator to match the thickness to the actual wall?
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PVC or metal soffits: choosing an eaves finish and estimating its cost

When choosing soffit, first decide whether the priority is the lightness and flexibility of PVC or a colour match between coated steel and the roof tiles and flashings. Check whether the product's conditions of use cover dark colours and sun exposure, and examine the rigidity of a sample and the availability of ventilated components. Remember that the air inlet must match the roof layer build-up, and the openings must not be covered with airtight foil. Calculate cost with trims, corners, framework and installation, not just square metres of panel.

By |2026-11-14T23:58:23+01:002025-05-10|Knowledge base|Comments Off on PVC or metal soffits: choosing an eaves finish and estimating its cost
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What determines the cost of a tile-effect metal roof?

The price of tile-effect metal roofing depends on the material, coating, format and the quantity needed for a specific roof. Two rates per metre may refer to different areas. With modules, pricing is per piece. Before you compare quotes, convert them to the same unit and add the elements without which a complete covering cannot be made. A quote may show a total square metre, an effective square metre or the price of one module. The effective area describes the coverage after the elements are joined. The total area also includes the parts that go into the laps. You should not multiply the price per total square metre by the roof slope area without checking the layout.

By |2026-11-14T10:36:38+01:002025-05-03|Knowledge base|Comments Off on What determines the cost of a tile-effect metal roof?
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How timber beams are joined in a roof frame

The way beams are connected depends primarily on the forces, geometry and location within the structure. Joining two lengths is different from connecting a rafter to a support. It is worth checking what forces the node must transfer and whether the joint matches the structural drawing. Cross-section, timber grade and moisture conditions must be considered. Merely butting two beam ends together does not restore continuity. Load capacity is determined by the whole detail, not by a number of random screws. That is why a carpenter needs a design, not just a photo from a neighbouring site.

By |2026-11-14T23:56:44+01:002025-05-03|Knowledge base|Comments Off on How timber beams are joined in a roof frame
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Who is responsible for the photovoltaic roof where the roofer’s and electrician’s work meet?

An integrated roof combines two trades in a single construction product. The roofer is responsible for the proper execution of the covering, while the electrical part requires appropriate competences and checks. Most ambiguities arise between these scopes: at penetrations, cable routes and repairs. That is why the coordinator, the acceptance points and the procedure for handling reports must be established before ordering. The name 'complete system' alone does not yet guarantee this. The cable must leave the active field, follow the designated route and reach the devices. Along the way it must not impair the tightness, ventilation or protection of the roof layers. The flashings and fixings, in turn, must not damage the insulation or the electrical connection.

By |2026-11-15T19:00:13+01:002025-05-02|Knowledge base|Comments Off on Who is responsible for the photovoltaic roof where the roofer’s and electrician’s work meet?
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Planning internal insulation for a 1990s house while retaining the façade

Preserving the façade of a 1990s house does not mean that additional insulation can simply be glued on from the inside. First, the construction of the existing wall and the way it dries must be established. The work plan should combine insulation with ventilation, services and floor junctions, especially when the use of some rooms changes. In houses from this period, various arrangements of masonry, cavities and insulation can be found. Documentation helps, but it is worth comparing it with the actual condition of the building. Layers added earlier, changed windows or bricked-up openings may have altered the behaviour of the building envelope. The year of construction is not enough to choose the PIR thickness.

By |2026-11-14T10:38:36+01:002025-04-21|Knowledge base|Comments Off on Planning internal insulation for a 1990s house while retaining the façade
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What to buy together with metal fence pickets? A complete order checklist

When choosing a fence, most attention goes to the profile and colour. Then it turns out that small but essential components are missing for installation. Metal fence pickets should be ordered together with a clearly defined scope of accessories. This does not mean buying everything blindly. Each item should follow from the chosen system, construction and number of elements. Determine whether the price covers just the pickets or also the crossbars and fence posts. If the structure already exists, its material and dimensions need to be described. If it is yet to be built, it should be matched to the planned layout. Sheet metal pickets do not replace supports or their correct setting.

By |2026-11-15T18:58:58+01:002025-04-20|Knowledge base|Comments Off on What to buy together with metal fence pickets? A complete order checklist
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Can solar panels be mounted safely on a metal roof?

Yes, photovoltaics can be safely installed on a metal roof, provided the fixings match the specific covering and structure. Before deciding, check the condition of the sheeting, the type and spacing of supports, not just the profile symbol, because T18, T35, tile-effect sheeting and sandwich panels require different solutions. Assess the additional loads, wind suction, penetration sealing, corrosion and the expected scope of renovation. The selection should cover the whole system from module to roof support, with documentation and service access.

By |2026-11-14T16:51:43+01:002025-04-19|Knowledge base|Comments Off on Can solar panels be mounted safely on a metal roof?
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Buying fence pickets in stages: how to keep your fence consistent?

Not every fence is built all at once. Sometimes the front is done first, and the sides of the plot later. This split can suit the budget and the work schedule. However, you need to plan how to keep the material consistent. Metal fence pickets from a later delivery may differ in profile availability or coating appearance. It is therefore worth planning the staging before the first order. Mark which sections will be built in the first stage and where the boundaries of the later ones will fall. It is good if the split follows the fence posts, corners or the gate. This makes measuring and quantity control easier. Do not order a random portion of material without assigning it to a specific location.

By |2026-11-15T18:59:13+01:002025-04-18|Knowledge base|Comments Off on Buying fence pickets in stages: how to keep your fence consistent?
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Does a larger photovoltaic roof capacity always mean a better investment?

A larger active area can increase production, but it does not necessarily increase the benefits proportionally. An additional roof section is often less well lit or supplies energy at a time when there are already large surpluses. The additional cost must be compared with the additional value of the energy. In an integrated system, a consistent covering can be maintained with passive elements. There is therefore no obligation to use every square metre of the roof surface to the maximum. At the outset, areas with good conditions and a simple layout are usually considered. As capacity is increased, zones with shading, a less favourable orientation or a more difficult detail may be added. Their production per unit of capacity does not have to be the same as on the first part of the roof.

By |2026-11-15T19:00:10+01:002025-04-18|Knowledge base|Comments Off on Does a larger photovoltaic roof capacity always mean a better investment?
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