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150mm URSA 10 Loft Roll (split 2x570mm)

Thickness: 150mm
Width: 1140mm
Roll Length: 7.50m
Roll Coverage: 8.55m2
Density: 10kg/m3
Weight/m2: 1.5kg
Weight: 11.25kg
Thermal Conductivity: 0.044W/mK
R-Value: 3.41m2K/W
Fire Rating (Reaction to Fire): A1(Non-combustible)

150mm URSA 10 Loft Roll is a lightweight, non-combustible, unfaced glass mineral wool products for use as loft insulation in cold pitched roofs. URSA 10 Loft roll is perforated to allow it to be split into 2 x 570mm wide rolls to match the format for use between joists at 600mm centres.

CHARACTERISTICS
APPLICATION
URSA 10 Loft Roll is commonly used as loft insulation in cold pitched roofs greatly increasing thermal and acoustic performance of the construction.
 
   
 
Ventilated Roof                                                                                    Non-ventilated Roof
 
INSTALLATION
Ventilated Roof Void
URSA Loft Roll is designed to fit between and over the roof timbers at joist (horizontal ceiling) level.
Non-Ventilated Roof Void
URSA Loft Roll is designed to fit between and over the roof timbers at joist (horizontal ceiling) level. The principle of this detail is that ventilation is not required; instead reliance is placed on the water vapour permeability of the sarking membrane. The system is therefore dependant upon the use of a LR Type membrane. This construction has the added benefit of the roof void remaining clean and free from wind borne dust and dirt.
  • The roof trusses, LR Type (breather) membrane, tiling battens and tiles are all installed in the normal way in accordance with good practice and BS 5534.
  • The LR Type membrane must be covered by a suitable technical approval such as BBA certification and be installed in accordance with that approval. 
  • When using man-made or natural slates (or other tiles that are relatively airtight) counter battens should be used in order to ventilate the airspace directly below the slates/tiles. 
  • The plasterboard ceiling, incorporating an air and vapour control layer (AVCL) (500g polythene or foil backed plasterboard), is installed in the normal manner ensuring the AVCL is correctly detailed and sealed. 
  • The first layer of URSA Loft Roll, same depth as the joists, is laid between the joists. 
  • The second layer of URSA Loft Roll is laid at right angles to the joists with all edges closely butt jointed. 
  • Ensure that the loft insulation continues over the wall plate to provide continuity with the wall insulation and is tight against any eaves ventilator units. 
  • Ensure that any penetrations through the ceiling, especially if formed by following trades, are correctly sealed to ensure an air and vapour tight ceiling.
CERTIFICATION
URSA 10 Loft Roll achieved outstanding product quality manufactured to ISO 9001 Quality Systems. It also has a low reaction to fire and meets Euroclass A1 to BS EN 13501-1 standards.
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