These low emissivity facings increase thermal resistance of unventilated air space adjacent to the insulation, improving the roof’s overall thermal performance. 2 Kingspan K7 Pitched Roof Board ... Kingspan K7 Pitched Roof Board FIGURE 6 UNVENTILATED INSULATION OVER RAFTERS (Recommended for new build or re-roofing) Figure 6a NO SARKING BOARD Figure 6b 18 mm SARKING BOARD Alternatively, an unventilated pitched roof may be designed. Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation, with a fibre-free rigid thermoset phenolic core, which is used for insulating warm roof spaces in ventilated or unventilated pitched roofs, under tiles or slates. With the introduction of the unventilated cold pitched roof, we need to clarify the general principles and risks and identify approved construction techniques. Another key advantage of specifying a pitched roof is the ability to provide a very high level of thermal performance in these roof types, whether you’re looking to insulate at joist (ceiling) level for a cold pitched roof or at rafter level if a living area within a warm roof construction is desired. Warm Pitched Roof. More information Unventilated Pitched Roof - Board Insulation Between and Below Rafters 6 pages. By giving guidance on the technical risks associated with ventilated and unventilated forms of cold pitched roofs, this Good Building Guide responds to some of the confusion and conflicting views. By giving guidance on the technical risks associated with ventilated and unventilated forms of cold pitched roofs, this Good Building Guide responds to some of the confusion and conflicting views. When installed within a ventilated cold pitched roof construction IKO Rubershield Eco Extra 120g/m2 Type LR Breather Membrane conforms to the requirements of BS5534:2014 . Warm roofs are a type of roof construction that can include loft conversions, a ‘room in the roof’ scenario, often created with dormer windows, or simply a roof space that has been designed for habitation. FOAM-TECH creates superior insulation and environmental control solutions by installing safe, cost-effective, and environmentally-friendly polyurethane foams. IKO Rubershield is a range of BBA approved (cert No.15/5190)* breathable membranes for pitched roofs. Warm Pitched Roof - Roof Space: Unventilated and Sealed. Roof Construction . Existing pitched roof horizontal ceiling General Specification: BBA Certificates 93/2939 and 02/3964 Spray applied Renotherm polyurethane foam between battens and rafters Average depth: 105mm U-value: 0.16W/m 2K Condensation risk: Zero Ventilation: Unventilated loft space Additional insulation:100mm mineral fibre at ceiling level Minimises the thermal bridge at the eaves. The principle applied here is warm moist air rising from below is allowed to permeate through the roof membrane removing the need to fully ventilate the roof. Tyvek® Supro does not need any soffit, tile or ridge ventilation, which can save time and money in the construction process. Energy efficient. FOR USE IN WARM NON-VENTILATED PITCHED ROOF SYSTEMS This Agrément Certificate Product Sheet(1) relates to Permo Air LR Air Open Roofing Membrane, a polyolefin laminate composite for use in warm non-ventilated pitched roof systems. Getting to Know… Kingspan Kooltherm K7 Pitched Roof Board. alwitra flat roof details: Download drawings and technical details about the warm roof (unventilated roof) for the waterproofing membranes of alwitra. (1) Hereinafter referred to as ‘Certificate’. Insulating a pitched roof above the rafters is the common method chosen for new builds and re-roofing existing detached buildings as it provides superior thermal performance for the building. With the introduction of the unventilated cold pitched roof, there is a need to clarify the general principles and risks and identify approved construction techniques. It is BBA approved* for use within cold and warm Unventilated Pitched Roof Construction … alwitra flat roof details: Technical details and drawings for the mechanically fixed warm roof (unventilated roof). Warm Deck: Insulation above joists (no ventilation required) Cold deck: Insulation between joists (ventilation required) The term warm/cold deck is usually limited to flat roofs If you have a cold deck roof and want a warm deck one instead then strip off the old felt and use rigid insulation above the old deck (kingspan/celotex etc) OR SLATED PITCHED WARM ROOF SPACES For more information on Kingspan Insulation visit www.barbourproductsearch.info. Eliminating traditional ventilation and the potential condensation risk associated with large voids of cool air make this the optimum pitched roof solution. • Highly breathable so allows the escape of harmful moisture vapour • Robust • Weather resistant • Long-term durability No ventilation to roof space required. Also available with integral tape (DuPont™ Tyvek® Supro Plus). In addition to warm, hybrid and cold roofs, applications include Scottish sarking board systems, low-pitched metal roofs, and wall and floor applications. In warm climates it prevents humid outside air that enters the roof due to natural and/or controlled ventilation from reaching the back of the roof sheathing, which can be cooled below the air temperature by night sky radiation (i.e. (1) Hereinafter referred to as ‘Certificate’. 90mm will give a depth of 353 . Just had this problem on a cut and pitch we reduced outer rafter to reduce barge bd depth. Designed for warm pitched or ventilated cold flat roof constructions on new build projects or on refurbishment projects where the roof is to be stripped and re-covered. Decreases air leakage / infiltration. Unventilated air space above insulation 38x m cou nter–ba Insulation between rafters (partialyo r fuly filling space) e.g. Insulating the roof above the rafters is known as warm roof insulation as the rafters are brought into the insulated envelope of the building. With a warm roof you will increase depth 60 mm insulation on top gives a barge bd depth of 323. Reduces condensation risk. Kingspan Kooltherm K7 Pitched Roof Board is a premium performance rafter-level insulation for ventilated or unventilated pitched roofs. We have the capabilities to spray and inject a variety of foam systems to achieve a high R-value while providing both effective vapor and air barriers. This is known as a ‘fully ventilated’ airspace as opposed to an ‘unventilated’ air space. To create a warm pitched roof, insulation such as Kingspan Kooltherm K7 Pitched Roof Board, should be fitted between and over the rafters. Aug 14, 2016 - About Roof Insulation - In Order to Create a Habitable Room in a House Pitched Roof Space, the Roof Must be Insulated. 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. The insulation can be laid above, between or below rafter level, or in a combination of all these positions. As this requires fitting insulation above the rafters the roof covering will have to be removed in order to fit the insulation. Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation, with a fibre-free rigid thermoset phenolic core, which is used for insulating warm roof spaces in ventilated or unventilated pitched roofs, under tiles or slates. Download and use them in your projects. INSULATION FOR TILED OR SLATED PITCHED WARM ROOF SPACES Seventh Issue September 2017 High performance rigid thermoset insulation – thermal conductivity 0.022 W/m.K Unaffected by air infi ltration Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material In cold climates it prevents warm, humid indoor air from reaching the back (underside) of roof sheathing where it can condense. Negates the need for ventilation products. the effect that causes dew). It is BBA approved* for use within cold and warm Unventilated Pitched Roof Construction and for use within Vertical Application. Hybrid Roof Follow the same procedure as a ventilated roof except an approved Vapour Permeable underlay is used above the rafter allowing the 50mm ventilation space to be dispensed with. Typically, a 25mm unventilated void is to be maintained; Agrément certification covering the membrane should be consulted. With this warm roof system, ZINC PLUS Standing seam can be installed on rigid insulation without ventilating the underside of the ZINC PLUS. Recent research suggests that sealing an unventilated roof yields a more energy efficient roof, as the impacts of ventilation and incidental infiltrating cold air are negated. However, you may not be familiar with these concepts, particularly what they mean and the pros and cons of … In pitched roof construction, the insulation can be placed horizontally above the ceiling level forming a ‘cold roof’; it can be inclined above, between or below the rafters forming a ‘warm’ or ‘hybrid’ roof, or positioned in the roof structure in different ways where a ‘room-in-roof’ is to be created that can result in warm and cold roof construction types. It is the most thermally efficient way of fitting roof insulation. New pitched roof, hybrid warm deck – horizontal ceiling General Spray applied polyurethane foam between rafters onto breathable roofing membrane Ventilation: Unventilated loft space Additional insulation:100mm mineral fibre at ceiling level PU foam is applied directly to … The thickness of insulation will vary depending on the manufacturer’s specification. K. K7 is used for insulating warm roof spaces in ventilated or unventilated pitched roofs, under tiles or slates. Both sizes will mean barge bds looking possibly overkill . The battening and tiling is then fixed down over. • Warm Deck Pitched Roof The insulation is placed over the rafters and then a felt is placed on top. Unventilated Warm Roof and Cold Roof Systems For new build and building extensions, ... for use in all tiled and slated pitched roof construction. Unventilated Roof – Ventilation Considerations Unventilated roof approaches create a warm pitched roof space, which does not require cross ventilation. AND WARM NON-VENTILATED PITCHED ROOF SYSTEMS This Agrément Certificate Product Sheet(1) relates to TLX UV10, UV15 and UV25 Roof Tile Underlays for use in cold ventilated and warm non-ventilated pitched roof systems. Benefits Of Sealed Warm Roofs. Warm Roof 1. Thermal insulation following the rafter line. Roof space unventilated and sealed. Fixed through to the deck with special fixing clips and screws supplied by VMZINC. Suitable for new build and refurbishment projects, it can be installed in between and above or between and below rafter applications. Low pitched roofs (unless good cross ventilation can be provided, which limits the rafter length), ... Unventilated Zinc Roof Build Up (Warm Roofs) These designs incorporate a high performance, and when required, self-sealing vapour barrier on the warm side of the insulation. 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