Knauf Loft Insulation Roll 44 – 0.57m wide rolls

Description

Next Day service not available

Knauf Roll Width 570mm

Knauf loft insulation will save you a lot of money by reducing heat loss through your roof. 35% of your household heat is lost through your roof. Loft insulation can reduce heating bills by £350 per year (rising to huge savings of £700 to 1000 a year from late 2022 due to rising energy costs). Even making your loft insulation thicker to the recommended 270mm can save £200-300 per year, or you can go even further and aim for passivhaus standards with around 450mm thick insulation.Passivhaus design means you can use very little or no heating.

Application

Knauf Loft Roll Insulation 44 is primarily used for the thermal insulation of pitched roofs at ceiling level and it can also be used to thermally insulate floors. When used to insulate at ceiling level it is usually laid in two layers, with the first layer between the joists and the second thick top layer over, and at right angles to the joists.

Product Features

• Lightweight and economic insulation quilt
• Provides thermal, acoustic and fire performance
• Non-combustible
• Very Low Itch (nice to install and nothing like the old itchy fibreglass)
• ECOSE Technology – softer to handle compared with traditional mineral wool

Choice of thickness

• 100mm – Base Layer
• 150mm – Top Up Layer
• 170mm – Top Up Layer
• 200mm – Super Top Up Layer

Product Specifications

• Roll Width 570mm
• Roll Length 100mm thick 12.18m, 150mm thick 8.05m, 170mm thick 7.03m, 200mm thick 6.0m
• Roll Coverage, 100mm covers 6.94m2, 150mm covers 4.59m2, 170mm covers 4.00m2, 200mm covers 3.42m2
• R-Value (thermal resistance) 100mm = 2.25, 150mm = 3.40m, 170mm = 3.85m, 200mm = 4.4m3/K/W
• Thermal Conductivity 0.044 W/mK
• Standard EN 13162
• Material, Mineral Wool
• Can be used in conjunction with top-up layers and loft storage solutions such as Loftlegs or Loftlegs XL

Environmental

Knauf Loft Roll is free from CFCs, HCFCs and any other material with ozone depletion potential in its manufacture and content and represents no known threat to the environment. Knauf Loft Roll manufacture has a low impact on the environment and is classified as Zero ODP and Zero GWP.

Durability

Knauf Loft Roll is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Installation

100mm based layer insulation should be fitted between wooden ceiling joists with a second top layer of 150mm/ 170/ 200mm fitted ‘cross layered’ at 90 degrees to the base layer to give 250mm/ 270mm/ 300mm total thickness. You may need a wooden plank/ crawl board to help you with installation and protect plastered ceilings. NOTE: 270mm thick is recommended minimum in England and Wales, 350mm is minimum thickness in Scotland (150mm between joists and 200mm at 90 degrees above). Increasing the thickness of insulation maximises energy efficiency. In new build and Passivhaus super-insulated properties, an insulation depth of 400-500mm is recommended. This is achieved by using 3 layers of insulation, for example 100mm between joints with 150mm and 200mm thick layers at 90 degrees above. Maximising insulation to all roof, wall and floor areas can mean your property will require very little heating energy and it will retain heat for longer into the next day after heating is turned off.

Delivery

We can only deliver to England, Wales and the Scottish Mainland.

Delivery is NOT available to Scottish Highlands and Islands, Isle of Man, Isle of Wight, Channel Islands or Scilly Islands. Any orders to these areas will be cancelled and refunded.

Delivery is made within 3 to 5 days.

We could deliver your order on large vehicles which need good access. Please ensure you are able to receive deliveries of this nature.