ISO INTERNATIONAL STANDARD 8144-2 First edition 1995-10-15 Thermal insulation --- Mineral wool mats for ventilated roof spaces Part 2: Specification for horizontal applications with unrestricted ventilation Isolation thermique -Feutres en laine minérale pour sous-toitures ventitees Partie 2: Spécifications pour application horizontale avec ventilation libre ISO Reterence number ISO8144-2:1995(E) Copyright Intermational Organization for Standardization No reprodu nitted without lice ense from IHS ISO 8144-2:1995(E) Foreword Iso (the International Organization for Standardization) is a worldwide of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. IsO coliaborates closely with the International Electrotechnical Commission (lEC)onallmattersofelectrotechnicalstandardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International a vote. International Standard ISO 8144-2 was prepared by Technical Committee ISO/TC 163, Thermal insulation, Subcommittee SC 3, Insulation products forbuildingapplications. IsO 8144 consists of the following parts, under the general title Thermal insulation Mineralwoolmats forventilated roof spaces: -Part1:Specificationforapplicationswith restrictedventilation 一 Part 2: Specification for horizontal applications with unrestricted ventilation Annexes A, B and C form an integral part of this part of iSO 8144. Annexes D, E and F are for information only. ISO 1995 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56·CH-1211 Geneve 20·Switzerland Printed in Switzerland ii Copyright Standardizatior Licensee-NASA Technical Standards 1/9972545001 No reproduction or networking pemited without license from IHS ISO8144-2:1995(E) INTERNATIONALSTANDARDISO Thermal insulation --- Mineral wool mats for ventilated roof spaces Part 2: Specification for horizontal applications with unrestricted ventilation Scope In general, mats are not designed to support any ap- plied ioad. For this reason, only the mechanical This part of IsO 8144 specifies the properties and properties required for adequate handling during ap- acceptancetolerancesforbondedman-mademineral plication are specified. wool thermal insulating mats (batts and rolls). The The sampling and conformity control procedures de- mats specified in this part of ISO 8144 are only in- scribed in annex D, and the certification procedure tendedtobeusedforhorizontalapplicationswithun- described in annex F, are recommendations only. restricted ventilation, where any excess of thickness recovery of the insulation mat will not restrict the es- sential ventilationspace[seeannex Eand ISO/TR9774:1990 (figure 1, sketch 23, right-hand drawing)forexamplesoftheapplication]. Normative references Insulation in ventilated roof spaces requires that the verntilation to the air space is guaranteed. Depending The following standards contain provisions which, upon the location of the insulation,the product thick- through reference in this text, constitute provisions ness may interfere with this requirement. of this part of IsO 8144.At the time of publication, the editions indicated were valid. Ail standards are subject The mineral wool mats which are specified in to revision, and parties to agreements based on this isQ8144-1:1995areprimarily intended for usein ap- part of IsO 8144 are encouraged to investigate the plications where any excess of thickness h