Loft Roll 44

Thermal and Acoustic Insulation of Lightweight Structures

Description

Loft Roll 44 is an unfaced glass mineral wool roll which is lightweight, flexible, resilient and non-combustible. Loft Roll 44 is available in four variants:

Loft Roll 44 (Uncut) is uncut and unperforated with a width of 1140mm.
Loft Roll 44 (Ready-cut) is pre-cut into either 2x570mm widths or 3x380mm widths.
Loft Roll 44 (Combi-cut) is perforated along its length at half and one third widths to allow easy splitting on-site to the required width.
Loft Roll 44 SL (Combi-cut) is the same as Loft Roll 44 (Combi-cut) but has a shorter length to reduce the weight of the roll for easier handling in certain environments.

Standards

Loft Roll 44 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

Loft Roll 44 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. Loft Roll 44 is available in thicknesses to suit current Building Regulations and is 1140mm wide, perforated or cut to suit both 400 and 600 roof joist centres. It has the highest achievable fire classification of A1.

Environmental

ECOSE^® Technology

Knauf Insulation mineral wool products with ECOSE^® Technology benefit from a revolutionary, bio-based, formaldehyde-free binder technology, based on rapidly renewable materials, instead of petro-based chemicals. It reduces embodied energy and delivers superior environmental sustainability.

The technology has been developed for Knauf Insulation’s glass and rock mineral wool products, enhancing their environmental credentials without affecting the thermal, acoustic or fire performance. Insulation products made with ECOSE^® Technology contain no dye or artificial colours – the colour is completely natural.

Performance

Thermal Performance

The thermal conductivity of Loft Roll 44 is 0.044 W/mK.

Fire performance

Loft Roll 44 is classified as Euroclass A1 to BS EN ISO 13501-1

Permanence

Loft Roll 44 is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Benefits

Lightweight and economic insulation quilt

Produced for use with timber joists at 400mm and 600mm centres
Option of uncut, fully cut or partially cut perforations
Combines thermal, acoustic and fire performance

Downloads

Loft Roll 44 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.

Loft Roll 44’s manufacture has a low impact on the environment and is classified as Zero ODP and Zero GWP.

Product Data

Loft Roll 44 (Uncut)

Thickness (mm)	Thermal Conductivity(W/mK)	Thermal Resistance (m²K/W)	Length (m)	Width (mm)	Area per Roll (m²)
200	0.044	4.50	5.20	1140	5.93
170	0.044	3.85	7.03	1140	8.01

All dimensions are nominal

Loft Roll 44 (Combi-cut)

Thickness (mm)	Thermal Conductivity(W/mK)	Thermal Resistance (m²K/W)	Length (m)	Width (mm)	Area per Roll (m²)
200	0.044	4.50	5.20	1140 (2x570/3x380)	5.93
170	0.044	3.85	7.03	1140 (2x570/3x380)	8.01
150	0.044	3.40	8.05	1140 (2x570/3x380)	9.18
100	0.044	2.25	12.18	1140 (2x570/3x380)	13.89