Description
Crown Loft Roll 40 is an unfaced
glass mineral wool roll which is lightweight, flexible, resilient
and non-combustible. Crown Loft Roll 40 is available in two
variants:
- Crown Loft Roll 40 (Ready-cut) is
pre-cut into either 2x570mm widths or 3x380mm widths.
- Crown Loft Roll 40 (Combi-cut) is
perforated along its length at half and one third widths to allow
easy splitting on-site to the required width.
Standards
Crown Loft Roll 40 is a non-combustible inorganic glass wool,
defined as mineral wool in
BS 3533 and is manufactured in
accordance with
BSI Quality Assurance
Standard
BS EN
ISO
9001: 2001.
Handling and Storage
Crown Loft Roll 40 is supplied in polythene packs. The Product
Data tables show storage information for each thickness.
Application
For the provision of thermal and acoustic insulation in new
build lofts and also loft conversions. Crown Loft Roll 40 is
available in thicknesses to suit current Building Regulations and
is 1160mm wide, perforated or cut to suit both 400 and 600 roof
joist centres. It has the highest achievable fire classification of
A1.
Environmental
Crown Loft Roll 40 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.
Crown Loft Roll 40’s
manufacture has a low impact on the environment and is classified
as Zero ODP and Zero GWP.



Thermal Performance
The thermal conductivity of Crown Loft Roll 40 is 0.040 W/mK.
Fire performance
Crown Loft Roll 40 is classified as Euroclass A1 to
BS EN
ISO 13501-1
Permanence
Crown Loft Roll 40 is odourless, rot proof, non-hygroscopic, does
not sustain vermin and will not encourage the growth of fungi,
mould or bacteria.
- Lightweight and economic insulation
quilt