In that case, the insulation is installed on the outside of the bearing construction. The 60kPa roofing boards provide resistance to foot traffic during periodic roof maintenance. 2 3 ROCKWOOL roofing boards provide a one stop solution to roofing insulation requirements. This may help with condensation, but causes such a loss of heat that it has been banned in Scotland. ROCKWOOL have answered the need for a thermally efficient, non-combustible flat roof insulation by launching a new product, HARDROCK® (DD) TRB. A ventilation gap, usually 50mm, should be provided between the top of the insulation and underside of the roof covering to allow the air to flow across. The existing ceiling is sound but provides no insulation. The ROCKWOOL Group is the world’s leading supplier of innovative products and systems based on stone wool. It is not normally possible to spray or blow insulation into an existing void or attach insulation to the underside. Flat Roof Insulation High compression strength insulation for flat roofs. They are suitable for new and re-roofing ap- plications on metal deck or concrete deck. The old roof beams were so badly rotted that all were replaced. Files: 4263_155__Flat_Roof__Insula... (Revit) Download. This is used for refurbishment e.g. At Roofgiant, we stock warm and cold roof options for both flat and pitched roofs, providing you with everything from PIR to foil insulation to rafter roll and many other forms of insulation designed for your loft or attic space. A flat roof where the insulation sits below the waterproof membrane and above the structural deck is a warm roof deck. Adding insulation to an existing flat roof generally requires the removal and replacement of some of the existing structure. • Cold Deck Flat Roof The thickness of insulation required will vary depending on the material you decide to use and the manufacturer’s specification. Ventilation openings (either at the eaves or upstand). ROCKWOOL built-up metal roof insulation products provide non-combustible stone wool insulation which is ideal for built-up metal roof applications. Older flat roofs which were insulated with wool type (rockwool) insulation, were fitted between the joists – if at all – with no damp-proof membrane or ventilation. I've got a cold flat roof which is closed on all four sides. refurbishing an existing timber joisted flat roof which has no insulation. The insulation material is placed between the supporting joists, leaving a gap of 50-60mm between the roof and insulation. Flat Roof Insulation - Kingspan or Rockwool? We create sustainable solutions to protect life, assets, and the environment today and tomorrow. Cold roof construction is the name for flat roofs where the insulation layer is below the roof deck. EN . This will enable the airflow to circulate freely. This method has a low energy performance and can also cause damp and condensation due to warm air in the room and cold air in the roof colliding. A cold flat roof is one where the insulation is between or between and below the roof joists. Discover the benefits of ROCKWOOL concrete flat roof insulation today. 08-0127. We have a wide range of roof insulation boards, including flat roof insulation, tapered insulation and pitched roof / loft insulation. The question is - now I'm ready to re-board the ceiling I was wondering if I could insulated between the joists. Built-up Metal Roof. Making the most of the Green Homes Grant with ROCKWOOL Learn more . There is only a small gap between this ceiling and a concrete roof (cold roof, felt covered). They’re referred to as “cold roofs” because any area above the insulation (i.e. Warm flat roof insulation. The rule of thumb for foil faced boards (like Thermapitch TP10 or Kooltherm K7) in this scenario is that you can have no more insulation under the joists than you have between the joists. We also have insulation boards suitable for more specialist roof applications, for example inverted roof insulation and balcony insulation. Installing concrete deck insulation can significantly reduce your energy costs. ROCKWOOL provides insulation products for warm flat roofs which are versatile, cost effective and simplify the specification and installation of modern flat roof systems . Consisting of a dense ROCKWOOL insulation slab bonded to a rigid 6mm exterior-grade fibre cement board, this combination of two non-combustible products provides an impact and weather-resistant insulation solution for flat roof upstands and parapet walls. Cold flat roof insulation. Warm Flat Roof. ROCKWOOL's produce commercial non-combustible stone wool insulation for flat roof refurbishments like high-rise developments or large scale commercial units . A cold roof has the insulation placed below the structural deck, which thus remains cold. The comprehensive range provides solutions for pipework, tanks, chimneys, boilers and cold boxes for temperatures as low as 200 C Solves common acoustic issues associated with flat roofs Rockwool Hardrock Multifix DD Flat Roof Insulation comes with brilliant external noise control properties, reducing disruption caused by rain, loud machines and people. In addition, it can result in an increase in energy bills. This method is especially applied to existing flat roofs which are restricted to a certain height. Flat Roof Insulation Flat Roof Plus ROCKWOOL Flatroof Plus insulation system provides superior mechanical strength to meet all challenges on the roof. I want to Insulate below a flat roof without removing the existing ceiling. The roof may be described as “warm deck” or “cold deck” depending on whether the insulation is above or below the main solid roof layer. Learn more about it today. Cold Flat Roof: Many properties use this option, as there are no additional costs for scaffolding or organising how to gain safe access to the roof exterior. Flat roof – there are three options available: warm deck, cold deck or inverted roof. Pitched roof – there are two options: warm or cold loft insulation. I've built a timber frame to support a new plasterboard ceiling below the existing one. With solutions ranging from our OPTIM-R vacuum insulation panels to our Therma range of PIR insulation, we can provide the best solution for flat roof insulation for roofs with mechanically fixed, bonded or torch applied waterproofing systems. The simplest and cheapest roof insulation is the classic cold loft option. It allows insulation to be added without having to replace the waterproofing on the existing roof or raising the roof line. Have recently had two "cold" flat roofs installed: one over a downstairs room and the other over part of the kitchen. Warm flat roofs do not need to be ventilated as the insulation is above the structure. Roof Insulation. See our flat roof insulation solutions. They are both suggesting a PVC roof but their insulation methods are different. It is preferred to have the bulk of the insulation between the joists to reduce any risk of condensation. I've had 2 builders look at it. Our range of high and optimum performance flat roof insulation products are suitable for use in a range of flat roofs. Technical Data Sheet Roof Insulation 07220* • Roof Insulation 07 22 00** Mineral Wool Board Insulation 07 21 13** ROCKWOOL TOPROCK ® DD is a dual-density, mineral wool insulation board for flat roofing applications. Lots of traditional flat roofs are of the ‘cold roof’ construction type. Send Other files. Cold flat roofs are typically avoided as you’d need to install ventilation, which can prove problematic for many reasons relating to space, labour costs, etc. Built Up Metal Roof. A cold roof has some disadvantages, which is why people often choose a warm roof. ROCKWOOL Technical Insulation provides thermal, acoustic, fire-resistant and energy-efficient insulation solutions for commercial, manufacturing and process industries. ROCKWOOL rafter insulation uses the power of natural stone to conserve energy and protect against external noise. We also supply products from the most trusted brands such as Celotex, Kingspan and SuperFoil. ROCKWOOL insulation for flat roof and built up metal roofs have been designed to meet the demands of modern roof systems, providing durable solutions which simplify design and lower costs. Cold loft insulation for pitched roofs. I need to get insulation installed and then, presumably, plaster boards fitted. A cold flat roof is insulated from the inside: the insulation is placed underneath the roof covering and the roof construction. Unique Dual Density Technology Learn more . So no ceilings at present.. It's on a garage/storeroom and is used as a non habitable room. It’s time to put renovation at the top of the agenda Renovate today . This means there is a vapour control layer in the ceiling and cross ventilation at the eaves or the top of the walls. 8 Mar 2011 #1 hi, I am getting a flat roof in an extension replaced and upgrading the insulation which is probably non-existent. Thread starter teddymac; Start date 8 Mar 2011; T. teddymac Guest. Discover more . Download the ROCKWOOL Red Book Download . Flat roof insulation will minimize the escape of heat and as ROCKWOOL insulation is made of stone, it will act as a fire barrier as well as reducing the escape of heat from the building. The boards are compatible with a range of flat roof systems, including single-ply, EPDM and liquid membranes, bitumen, and green roofs. Flat Roof Insulation. It has a number of skylights, so a new warm roof wasn't possible. The insulation is below the deck, but above the plasterboard. Insulation is placed over and between the wooden joists, above the ceiling of your home's top floor. the roof deck, loft, or roof space) will be colder than the living space below. This can present a problem as colder areas are more susceptible to condensation. Last year it was leaking, so I had it re-felted. One proposes using 2 layers of … Installing the right insulation can go a long way to keeping homes warm throughout the winter months. Also includes Euroclass A1 fire-resistant credentials and a sustainable, long-life, stable composition. This construction relies on a vapour control layer working effectively, and in tandem with a continuous ventilated airspace to disperse the water vapour to atmosphere before it reaches the cold deck and condenses. Insulation for upstands and parapet walls . Cold weather, during Christmas, can cause a spike in associated health problems, especially for older people. The majority of domestic cold flat roofs use insulation ‘between and under’ the joists. In case of an existing flat roof, insulation can be increased externally with extruded polystyrene or foamed glass, or internally with an insulated lining board such as mineral fibre or polyurethane foambacked plaster-board. 150mm Rockwool Hardrock Multi fix DD is manufactured from renewable volcanic stone which produces a non-combustible roofing insulation board. Presumably, plaster boards fitted low as 200 in an increase in energy.! 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