{"id":482,"count":25,"description":"<span style=\"font-weight: 400\">Are you looking for an effective material to insulate your roof or loft? In this category, you\u2019ll find the full range of Knauf Insulation products \u2013 from Unifit boards and Naturoll rolls to Supafil Loft blow-in insulation. As an authorised distributor, PK Complex provides expert advice, competitive prices and access to tried-and-tested solutions for both private and commercial construction projects. By browsing the range of Knauf Insulation products in our shop, you can compare thicknesses and specifications and quickly select the right product for your project.<\/span>\r\n<h2><span style=\"font-weight: 400\">Knauf Insulation mineral wool \u2013 what does PK Complex offer?<\/span><\/h2>\r\n<span style=\"font-weight: 400\">We offer various types of Knauf mineral wool in rolls, as well as the accessories required for installation. PK Complex is an official partner of Knauf Insulation and offers a full range of products designed for insulating roofs, lofts, ceilings and partition walls.<\/span>\r\n\r\n<span style=\"font-weight: 400\">Thanks to our direct partnership with the manufacturer, we ensure consistent product availability, competitive prices and professional support in selecting the right solution. If you\u2019re interested in high-quality Knauf Insulation mineral wool for a new home or for renovating an existing building, you\u2019ll find products here to suit every application \u2013 whether you\u2019re looking for insulation for your loft, roof or ceiling.<\/span>\r\n<h2><span style=\"font-weight: 400\">Knauf rock wool or glass wool \u2013 which to choose?<\/span><\/h2>\r\n<span style=\"font-weight: 400\">Knauf glass wool is lighter and more flexible \u2013 it works brilliantly between rafters, adapting to irregular spacing in the structure. Rock wool is stiffer, has a higher fire resistance rating (class A1) and is better suited to ceilings, flat roofs and sound insulation. This category combines both types \u2013 you\u2019ll find a detailed comparison and guidance on which to choose for a specific project in the guide:<\/span><a href=\"https:\/\/sklep.pkcomplex.pl\/en\/welna-mineralna-skalna-czy-szklana-na-poddasze-co-wybrac-w-2026\/\"> <span style=\"font-weight: 400\">Rock wool or glass wool \u2013 which to choose?<\/span><\/a><span style=\"font-weight: 400\">.<\/span>\r\n<h2><span style=\"font-weight: 400\">The full range of Knauf Insulation wool products \u2013 boards, rolls and blow-in insulation<\/span><\/h2>\r\n<span style=\"font-weight: 400\">This category includes, amongst others, the products most frequently chosen by investors:<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400\"><b>Knauf Unifit 035<\/b><span style=\"font-weight: 400\"> \u2013 springy panels designed for installation between rafters, ideal for pitched roofs and converted attics.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><b>Knauf Naturoll Plus 040<\/b><span style=\"font-weight: 400\"> \u2013 flexible wool in rolls, which adapts well to irregular spacing in the structure.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><b>Supafil Loft blown-in wool<\/b><span style=\"font-weight: 400\"> \u2013 a solution for unused attics and ceilings, enabling hard-to-reach spaces to be filled quickly.<\/span><\/li>\r\n<\/ul>\r\n<span style=\"font-weight: 400\">In addition, we offer a range of products, including specialised and loose-fill insulation, rock wool, wall insulation and the vapour barrier essential for insulation work using wool.<\/span>\r\n<h2><span style=\"font-weight: 400\">Why do professionals choose Knauf Insulation wool?<\/span><\/h2>\r\n<span style=\"font-weight: 400\">The main advantages of Knauf Insulation products are:<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">low thermal conductivity (lambda as low as 0.035 W\/(m\u00b7K)),<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">high fire resistance, certified to classes A1 or A2,<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">very good acoustic properties,<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">the durability of the insulation properties over many years of use,<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">compliance with European building standards.<\/span><\/li>\r\n<\/ul>\r\n<span style=\"font-weight: 400\">Thanks to these properties, Knauf products are a popular choice amongst both contractors and private clients.<\/span>\r\n<h2><span style=\"font-weight: 400\">Certificates and standards \u2013 compliance with building regulations<\/span><\/h2>\r\n<span style=\"font-weight: 400\">Knauf Insulation products bear the CE mark and comply with the requirements of standard EN 13162 for mineral wool products. The insulation performance allows for the design of partitions in accordance with the applicable requirements of WT 2021, which is important both for the construction of new homes and the refurbishment of existing buildings.<\/span>\r\n<h2><span style=\"font-weight: 400\">Uses of Knauf mineral wool \u2013 where can it be used?<\/span><\/h2>\r\n<span style=\"font-weight: 400\">Knauf mineral wool is used in most partitions requiring effective thermal and acoustic insulation. Below, we outline the most common applications for the products available in this category.<\/span>\r\n<h3><span style=\"font-weight: 400\">Insulation of a pitched roof and a converted loft<\/span><\/h3>\r\n<span style=\"font-weight: 400\">Roof insulation with mineral wool is most commonly carried out in a two-layer system: the first layer is placed between the rafters, and the second beneath them. This approach minimises thermal bridges and enables the building to meet the required energy performance standards. Unifit boards and Naturoll rolls are the best choices for mineral wool in the loft, as they adapt easily to the roof structure. Want to install the insulation yourself? See the guide:<\/span><a href=\"https:\/\/sklep.pkcomplex.pl\/en\/jak-ocieplic-poddasze-welna-mineralna-krok-po-kroku-i-zaoszczedzic-na-rachunkach\/\"><span style=\"font-weight: 400\"> How to insulate your loft with mineral wool, step by step<\/span><\/a><span style=\"font-weight: 400\">.<\/span>\r\n<h3><span style=\"font-weight: 400\">Insulation of the ceiling and the unused loft<\/span><\/h3>\r\n<span style=\"font-weight: 400\">In the case of an unused loft or the ceiling above the top floor, the following works very well:<\/span><a href=\"https:\/\/sklep.pkcomplex.pl\/en\/product-category\/welna-mineralna-knauf-insulation\/welna-do-izolacji-dachow-i-stropow-welna-mineralna-knauf-insulation-2\/\"> <span style=\"font-weight: 400\">roof insulation with wool<\/span><\/a><span style=\"font-weight: 400\"> applied using the blow-in method. Supafil Loft allows the entire insulation space to be filled quickly and tightly, eliminating thermal bridges and ensuring an even layer of insulation.<\/span>\r\n<h3><span style=\"font-weight: 400\">Sound insulation of partition walls and ceilings<\/span><\/h3>\r\n<span style=\"font-weight: 400\">Knauf mineral wool effectively reduces noise transmission between rooms. It is therefore often used in partition walls constructed using drywall techniques and in suspended ceilings. This solution is particularly valued during loft conversions and the refurbishment of flats and houses.<\/span>\r\n<h2><span style=\"font-weight: 400\">How do I choose the right Knauf Insulation wool?<\/span><\/h2>\r\n<span style=\"font-weight: 400\">Choosing the right product depends on the application, the type of structure and the required thermal insulation performance. It is worth considering the product\u2019s form, its lambda value and the target thickness of the insulation layer.<\/span>\r\n<h3><span style=\"font-weight: 400\">Unifit wool slabs vs Naturoll wool rolls \u2013 which should you choose?<\/span><\/h3>\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><b>Feature<\/b><\/td>\r\n<td><b>Unifit (panels)<\/b><\/td>\r\n<td><b>Naturoll (rolls)<\/b><\/td>\r\n<\/tr>\r\n<tr>\r\n<td><span style=\"font-weight: 400\">Form<\/span><\/td>\r\n<td><span style=\"font-weight: 400\">Rigid spring plates<\/span><\/td>\r\n<td><span style=\"font-weight: 400\">Flexible rollers<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td><span style=\"font-weight: 400\">Rafter spacing<\/span><\/td>\r\n<td><span style=\"font-weight: 400\">Standard (approx. 60 cm)<\/span><\/td>\r\n<td><span style=\"font-weight: 400\">Non-standard and variable<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td><span style=\"font-weight: 400\">Installation<\/span><\/td>\r\n<td><span style=\"font-weight: 400\">Precise, minimal waste<\/span><\/td>\r\n<td><span style=\"font-weight: 400\">Needs trimming<\/span><\/td>\r\n<\/tr>\r\n<tr>\r\n<td><span style=\"font-weight: 400\">Application<\/span><\/td>\r\n<td><span style=\"font-weight: 400\">Pitched roofs and convertible lofts<\/span><\/td>\r\n<td><span style=\"font-weight: 400\">Ceilings, attics and irregular spaces<\/span><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<h3><span style=\"font-weight: 400\">What thickness of wool should I choose for the loft \u2013 15, 20 or 25 cm?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">The appropriate thickness of insulation depends on the building\u2019s energy requirements. The most commonly searched-for option is \u2018mineral wool 15\u2019, i.e. the 15 cm thick variant, used as the first layer of insulation. Currently, a total of around 25 cm of insulation is considered the optimal solution for new homes:<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400\"><b>15 cm mineral wool<\/b><span style=\"font-weight: 400\"> \u2013 most commonly as the first layer between the rafters,<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><b>20 cm mineral wool<\/b><span style=\"font-weight: 400\"> \u2013 an interim solution used in modernisation projects,<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">25 cm and above \u2013 the recommended standard for achieving very good thermal insulation.<\/span><\/li>\r\n<\/ul>\r\n<span style=\"font-weight: 400\">A popular option is a 15 cm gap between the rafters and an additional 10 cm beneath them. If you\u2019re not sure how many layers or what thickness would be best for your situation, use the calculator provided with each product.<\/span>\r\n<h2><span style=\"font-weight: 400\">Wool quantity calculator \u2013 work out how much you need<\/span><\/h2>\r\n<span style=\"font-weight: 400\">To work out how much material you need, measure the surface area of the partition to be insulated and add approximately 10\u201315% to allow for off-cuts. Then compare this figure with the surface area covered by one pack of your chosen product.<\/span>\r\n\r\n<span style=\"font-weight: 400\">When browsing the Knauf Insulation range of wool products, you\u2019ll find a built-in calculator next to each product that suggests the coverage in m\u00b2, and the number of packs required is calculated automatically. If you need help, please contact the PK Complex advisers \u2013 we\u2019ll be happy to assist you with your calculations.<\/span>\r\n<h2><span style=\"font-weight: 400\">Lowest Price Guarantee<\/span><\/h2>\r\n<span style=\"font-weight: 400\">sklep.pkcomplex.pl offers a lowest-price guarantee. Are you planning a larger project or a bulk purchase? Drop us a line or give us a call \u2013 prices for Knauf mineral wool are negotiable.<\/span>\r\n<h2><span style=\"font-weight: 400\">FAQ \u2013 frequently asked questions about Knauf Insulation mineral wool<\/span><\/h2>\r\n<h3><span style=\"font-weight: 400\">Which Knauf mineral wool is best for a converted loft?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">For a converted loft, Knauf glass wool installed between the rafters works best \u2013 for example, the Unifit or Ecose\u00ae range, with a thickness of 15 cm laid in two layers or as a 20 cm + 10 cm top-up. A low lambda coefficient and flexibility are key, as they allow the rafter space to be filled tightly.<\/span>\r\n<h3><span style=\"font-weight: 400\">Is 15 cm of Knauf mineral wool enough to insulate the roof?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">A single 15 cm layer does not usually meet the requirements of WT 2021 (U \u2264 0.15 W\/(m\u00b2\u00b7K) is required). Two layers are usually required, e.g. 15 + 15 cm or 20 + 10 cm.<\/span>\r\n<h3><span style=\"font-weight: 400\">What is the difference between Knauf rock wool and glass wool?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">Glass wool is lighter, more flexible and works better between rafters. Rock wool is harder, has a higher fire resistance rating (Class A1) and is better suited to ceilings, flat roofs and sound insulation. Both are available in our range.<\/span>\r\n<h3><span style=\"font-weight: 400\">How does Knauf Unifit differ from Naturoll?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">Unifit consists of resilient panels designed primarily for installation between rafters. Naturoll comes in rolls and is better suited to structures with irregular spacing and large ceiling areas.<\/span>\r\n<h3><span style=\"font-weight: 400\">How much does Knauf mineral wool cost per square metre?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">The price depends on the thickness and type of insulation (glass wool or rock wool) \u2013 you can find the exact price on the category page and in the details of the selected product. Prices are negotiable for larger orders.<\/span>\r\n<h3><span style=\"font-weight: 400\">Does Knauf Insulation wool require a vapour barrier?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">Yes. In most pitched roofs, an internal vapour barrier is an essential component of a properly constructed roof structure. It protects the insulation layer from excessive damp and loss of performance.<\/span>\r\n<h3><span style=\"font-weight: 400\">Can I order Knauf wool with home delivery?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">Yes \u2013 sklep.pkcomplex.pl delivers throughout Poland. You can place an order directly via the online shop or contact our sales department, which will help you choose the right product based on your design or the building\u2019s dimensions and provide you with a personalised quote.<\/span>\r\n<h3><span style=\"font-weight: 400\">Is PK Complex an authorised distributor for Knauf Insulation?<\/span><\/h3>\r\n<span style=\"font-weight: 400\">Yes. PK Complex is an official partner of Knauf Insulation, which means we offer the manufacturer\u2019s genuine products, professional technical advice and access to the full range.<\/span>","link":"https:\/\/sklep.pkcomplex.pl\/en\/product-category\/welna-mineralna-knauf-insulation\/","name":"Mineral wool \u2013 Knauf Insulation","slug":"welna-mineralna-knauf-insulation","taxonomy":"product_cat","parent":0,"meta":[],"_links":{"self":[{"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/product_cat\/482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"wp:post_type":[{"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/product?product_cat=482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}