Flat roof. We offer a versatile range of premium-quality stone wool roof products – providing excellent thermal, acoustic and fire-resistant solutions for both commercial and domestic projects. Traditionally, flat roofs are formed of single timber board or “deck” with a waterproof covering fitted to the top of the board. Loading and impact resistance is also required, with compressive strength being an important consideration when selecting flat roof insulation solutions. Warm vs. Regal Rooflines recently installed a fibreglass flat roof on our extension. Telephone: 01233 610918Freephone: 0800 8815256. How to Prevent This →. By insulating your roof using a ‘warm roof’ technique, you not only dramatically increase your energy efficiency but keep your house warm in the winter and cool in the Summer! Pitched roof – there are two options: warm or cold loft insulation. When constructing a cold flat roof, the thermal insulation layer is positioned underneath the structural decking. For professionally installed flat roofs complete with a 25-year warranty get in touch. If you have been considering a new roof installation, looking into adding insulation to your home, or are planning to build a new house, you may have heard people talk about “hot roof” and “cold roof” systems. Warm roof insulation ensures the entire roof structure is insulated, meaning a warm deck roof is more energy efficient than a cold roof. Cold roof construction is the name for flat roofs where the insulation layer is below the roof deck. Flat Roof. Insulation System for Flat Roofs & Balconies. "May I just say that I am very impressed with the work With traditional cold pitched roof construction, more insulation often means more interstitial and surface condensation, too – a danger that is aggravated by precipitation and wind. It must create a comfortable and healthy environment in all possible combinations of external and internal conditions and control the effects of external heat, cold, noise and internal moisture generation. Our insulation solutions for flat roof applications provide both excellent fire and acoustic performance in addition to high levels of thermal performance. Cold Roofs. Introduction. I've got a cold flat roof which is closed on all four sides. Reliable traders are hard to come by and when you find the right one, you want to ensure that you keep them for life. This video shows the key features of a flat roof cold deck construction and how to draw the details to a scale of 1:10 Rigid PIR insulation boards, such as Mannok Therm Roof / MR boards, are generally the preferred roof insulation materials for flat roofs for a number of reasons.They are lightweight, easy to fit and come in a range of thicknesses. The simplest and cheapest roof insulation is the classic cold loft option. This system is called warm deck insulation and eradicates the condensation and venting issues associated with the cold deck system.The layer of insulation is essentially placed outside of the roof. As mentioned below the only Flat Roof Insulation that we install is the Aerolite 135mm or the Isotherm 145mm. With many thanks A cold roof design usually leaves a 50mm gap between the top of the insulation, and the roof deck above. In a cold roof construction, the Sarnafil membrane is installed directly to the structural decking (usually timber with firrings to fall). Cold Flat Roofing: Insulation is placed in-between the … Warm flat roofs do not need to be ventilated as the insulation is above the structure. In this case ventilation is required and the roof can still become wet with condensation which may cause materials to decay. Flat roof construction – which is defined as anything with up to 10 degrees of pitch – was popular from the 1950’s right through to the 1970’s and a small number of properties are still constructed with a flat roof today. © 2021 SuperFOIL part of the Boulder Developments Group. your colleague set about it: highly professional in all With a flat roof, this issue does not arise, but the U value constraint and the amount of insulation needed is just the same. COLD ROOF Many residential flat roofs have the waterproofing laid directly onto the deck, and any insulation placed above the ceiling. We recommend a combination of Therm Roof insulation boards and Therm Flat Laminate-Kraft insulation boards. COLD ROOF Many residential flat roofs have the waterproofing laid directly onto the deck, and any insulation placed above the ceiling. Powerdeck ® U Easy to install flat roof insulation board suitable for torch-on felt. A cold flat roof does include insulation typically by way of Kingspan or Celotex insulation material inserted between joists. Click the privacy policy button to read how we handle personal data. To help you learn about the types of insulation which will be best for your home, we have compiled this guide to roof and loft insulation which are a great place to start when insulating your home. Cold Roofs. Find out more about fibreglass flat roofing. Put simply the concept behind this design is ingenious as it provides over twice the heat retention when compared to the old-style thermal mineral wool. refurbishing an existing timber joisted flat roof which has no insulation. In fact, insulation from the inside will inevitably lead to the formation of condensation caused by the humidity present inside the building. Flat roof design guide. A cold flat roof does include insulation typically by way of Kingspan or Celotex insulation material inserted between joists. A cold flat roof is one where the insulation is between or between and below the roof joists. This wool is packed into the joists and rafters a clear gap of 5cm is left between the insulation and the timber board to allow condensation to escape this is to prevent the condensation making contact with the boarding or deck…. Our second solution in this series is a cold Flat roof insulation build up.This solution goes all below joist starting with a single layer of SuperFOIL SF40 followed by a counter batten then a 35mm insulated plasterboard. They also present the opportunity to incorporate facilities such as roof terraces, car parking and increasingly green roofs. Ventilation is required for these roofs. Regal Rooflines are professional flat roofing contractors based in Ashford Kent; we’ve been keeping the South East’s homes and businesses dry for the last 20 years. Our range of high and optimum performance flat roof insulation products are suitable for use in a range of flat roofs. • Cold Deck Flat Roof The thickness of insulation required will vary depending on the material you decide to use and the manufacturer’s specification. In this case ventilation is required and the roof can still become wet with condensation which may cause materials to decay. These Insulation products have great R-value and fire rating for these applications. Week 18 – Cold Flat Roof Insulation 0.18U – SuperFOIL Solutions. A note to consider before construction: if insulation is installed below the flat roof deck this is called a “cold” roof. This solution will bring your roof up to current retrofit building regulation requires of 0.18U in just under 100mm of build up making this an ideal solution for a … This outdated design is somewhat archaic and harks back to a time when insulation of all types was simply an afterthought. This category only includes cookies that ensures basic functionalities and security features of the website. From there, the flat roof system you choose will determine the materials you apply. As a result, cold pitched roofs often need ventilation openings to ‘change the air’. Achieving a U value of 0.20W/m² (meaning your roof will be better insulated than your walls) will need 120mm thickness of rigid foam or 200mm of mineral wool or natural insulation. The traditional cold deck flat roof system is to install the insulation between and under the joists, with ventilation below the timber deck. Cold flat roofs are found in many homes around the UK, though they are not recommended these days and are actually banned in Scotland. In an uninsulated home, up to 25% of heat is lost through the roof. Flat Roof. More importantly, they have excellent thermal properties and compressive strength, which makes them ideal for flat roof insulation. Our insulation solutions for flat roof applications provide both excellent fire and acoustic performance in addition to high levels of thermal performance. A cold deck flat roof will typically require insulation to be installed between the roof joists to comply with Building Regulation requirements. This arrangement allows the deck to become ‘COLD’. We want you to know that we appreciate your efforts and look forward to continuing our business relationship.

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