Frequently Asked Questions Below you will find the answers to some of our most frequently asked questions we get asked by our customers. Browse by help topic: General ROCKWOOL insulation questions Product performance questions ROCKWOOL Product comparison questions Installation questions Application questions Density questions You can also check out our most popular resources and download our most recent publications below. General ROCKWOOL Insulation FAQs What is ROCKWOOL insulation and how is it made? What is the difference between stone wool and other types of insulation? If ROCKWOOL insulation is made of stone, will it be heavier than other types of insulation? Will ROCKWOOL insulation attract rodents or mould? Is ROCKWOOL a glass wool insulation? Why is ROCKWOOL is itchy? I’m worried about the fibres from ROCKWOOL products. Will these harm me if I breathe them in? What is the difference between stone wool and other types of home insulation? Product Performance FAQs Product Performance Acoustics Fire Moisture Durability Sustainability Product Performance Do you have BBA certification for your products? Do you have a guarantee for your products? Do ROCKWOOL have certificates demonstrating that there is a certified EMS (e.g. ISO 14001 certificates) for the product manufacture and also for any quarried or mined mineral over 20% of input? Advice and Inspiration Why Stone Wool? We have been able to break down the natural power of stone into 7 strengths that are inherent in the versatile properties of stone wool. These are seven reasons why we believe the world’s most abundant resource can be engineered to create uniquely useful and exciting solutions for our customers. And by applying these 7 strengths to everything we do, we passionately believe that we can address some of the biggest challenges facing our world. Learn more ROCKWOOL Products Comparison FAQs Can I use my Sound Insulation slab for a thermal application or do I need to buy the Thermal slab? Can I use Sound Slab in a thermal application? What is the difference between Sound Slab, Flexi and RWA45? Installation FAQs General Questions Roofs and Lofts Floors and Ceilings Fire Protection and Fire Stopping General Questions Can I double layer ROCKWOOL products? How do I cut ROCKWOOL? Do I need to wear any protective clothing to fit ROCKWOOL insulation in my loft? Can I use ROCKWOOL insulation with electrical wires and cables? Learning Installation Guides Learn how to get the perfect fit when installing your ROCKWOOL insulation products here. Learn more Application FAQs Walls Floors and Ceilings Roofs and Lofts HVAC Fire Protection and Fire Stopping Walls I have a masonry cavity wall. Will blowing insulation within the cavity reduce the noise from next door? Which type of cavity wall insulation is best? Is my house suitable for cavity wall insulation? How can I prevent fire entering a cavity wall around window and door openings and subsequently spreading throughout the building envelope? Which ROCKWOOL external wall systems can be used to insulate facades, and improve older housing? What are you insulating? Application Areas A complete range of ROCKWOOL stone wool insulation products for various building types and application areas including walls, floors, ceilings, roofs and much more Discover more ROCKWOOL Insulation Density FAQs What density is ROCKWOOL insulation? Can I specify an insulation product by density? Do you have a product with a minimum density of 10kg/m3? Here are some of our most popular technical resources: Resource Hubs Resource Hubs Visit one of our technical resource hubs, bringing together everything you need to know, all in one place. Access here Technical Resources Technical calculation tools Need help with your project? ROCKWOOL has developed a suite of technical support tools to assist with design, specification and installation on your next building project. Access ROCKWOOL tools for thermal and acoustic calculations. Access tools Technical Resources Product Documentation Access the most up to date technical product datasheets and brochures, product MSDS, certificates, industry reports and building regulation guides. Download Download our most recent publications: Product Documentation The ROCKWOOL Red Book To help save specifiers’ time and make it easier to identify the correct insulation solutions for facades, walls, floors and roofs, ROCKWOOL has launched the new ROCKWOOL Red Book – a fully interactive guide which provides digital access to technical data, product certification and a wide range of specification support materials. Download ROCKWOOL Red Book Product Documentation The ROCKWOOL HVAC Systems Guide A comprehensive guide to the full range of ROCKWOOL HVAC solutions. Download today. Download HVAC Book The Fifth Facade Flat roofs: Mitigating fire risk in the fifth facade In a new whitepaper, ROCKWOOL examines all the key factors which are contributing to fire risk in flat roofs and addresses how specifiers and roofing contractors can help to mitigate these. Download whitepaper Looking for support? The ROCKWOOL Trade Application Guide is here. Packed full of product information, building regulation compliance criteria and installation advice, the must-have manual tells you everything you need to know about our non-combustible stone wool insulation. Download guide Couldn't find an answer? Fill in the form below to send your enquiry to our technical solutions team. 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