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Earthwool® Loft Roll 44 Combi Cut

... is a flexible, shot-free, unfaced, low density glass mineral wool quilt, which is lightweight, flexible, resilient and non-combustible.

The rolls are 1160mm wide and partially perforated to produce either 2 rolls 580mm
wide or 3 rolls 386mm wide.

Thermal Performance

The thermal conductivity of Earthwool® Loft Roll 44 is 0.044 W/mK. Fire performance Earthwool® Loft Roll 44 is classified as Euroclass A1 to BS EN ISO 13501-1

Permanence

Earthwool® 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

Partially cut perforations

Combines thermal, acoustic and fire performance

Application

For the provision of thermal and acoustic insulation in new build lofts and also loft conversions. Earthwool® 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.

Product Data

Thickness	Thermal conductivity	Thermal resistance	Width	Length	Area per pack
(mm)	(W/mK)	(m2K/W)	(mm)	(m)	(m2)
200	0.044	4.50	1160/2 x 580/3 x 386	5.20	6.03
150	0.044	3.40	1160/2 x 580/3 x 386	8.05	9.34
100	0.044	2.25	1160/2 x 580/3 x 386	12.18	14.13

Standards

Earthwool® 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.

Durability Earthwool®

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

Environmental

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

Handling and Storage

Earthwool® Loft Roll 44 is supplied in polythene packs. The Product Data tables show storage information for each thickness.

Earthwool® Loft Roll 44 is easy to handle and install, being lightweight and easily cut to size.

It is supplied in polythene packs which is designed for short term protection only.

For longer term protection on site, the product should be stored either indoors, or under cover and off the ground. Installation instructions are on every pack.

Earthwool® Loft Roll 44 should not be left permanently exposed to the elements.

 

Earthwool® Rafter Roll 32

Specifically designed for installation between rafters in warm roofs and loft conversions

Description

Earthwool® Rafter Roll 32 is an unfaced, semi-rigid roll of glass mineral wool with extra high thermal performance.

Benefits

Very high thermal performance

Combines thermal and acoustic performance

Quick and easy installation

Friction fitting allows rafter spacing to be completely filled, thus eliminating air gap

Longer roll lengths

Application

Earthwool® Rafter Roll 32 is for insulating between the rafters of pitched roofs of both new build and existing buildings. It is easy to cut and friction fit between rafters.

As Earthwool® Rafter Roll 32 is unfaced, it is necessary to add a separate vapour control layer on the warm side of the insulation. In accordance with Building Regulation requirements, a 50mm ventilation path must be preserved behind the insulation where the underlay has high thermal resistance, for example traditional roofing felt.

Earthwool® Rafter Roll 32 can be used either as a single or double layer between rafters, or as the first layer of a two layer system in combination with Gen-X or similar multi-foil insulation products.

Product Data

Thickness 100 (m) - Length 4 (m) Width 1200(mm) Area 4.8 (m2/roll)

Thermal conductivity - 0.032 (W/mK)

Thermal resistance - 3.1 (m2K/W)

Note:

Other thicknesses are available and upon request, however, a short lead time will be required.

Standards

Earthwool® Rafter Roll 32 is a non-combustible inorganic glass wool, defined as mineral wool in BS 3533: 1981 and is manufactured in accordance with BSI Quality Assurance Standard BS EN ISO 9001: 2000.

Durability

Earthwool® Rafter Roll 32 is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Environmental

Earthwool® Rafter Roll 32 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.

Performance

Thermal Performance Earthwool® Rafter Roll 32 has a thermal conductivity of 0.032 W/mK.

Fire Performance

Earthwool® Rafter Roll 32 is classified as Euroclass A1 to BS EN ISO 13501-1.

Acoustic performance

Earthwool® Rafter Roll 32 has excellent sound absorption characteristics.

 

Manufacturer

Knauf Insulation Ltd, PO Box 10, Stafford Road, St Helens, Merseyside, WA10 3NS

Technical Advisory Tel: 01744 766666 Fax: 01744 766667 Email: tech@knaufinsulation.com