TECHNICAL ASSESSMENT 338

Transcription

1 ISSN TECHNICAL ASSESSMENT 338 MAY 2006 TERM Seal Multi-purpose Passive For Waterproofing; and TERM Seal Multi-purpose Active For Waterproofing PURPOSE APPLICANT A waterproofing membrane system for use in wet areas, decks, balconies and retaining walls TERM-seal (Aust) Pty Ltd (ABN ), Unit 8, Bellbowrie Street, Port Macquarie, NSW 2444

2 2 TECHNICAL OPINION In the opinion of CSIRO Appraisals, TERM Seal Multipurpose Passive For Waterproofing and TERM Seal Multi-purpose Active For Waterproofing are suitable for use as a liquid applied waterproofing membrane for: (a) internal wet areas including shower recesses as it will satisfy the requirements of AS Waterproofing of wet areas within residential buildings; and (b) decks, balconies and retaining walls. under the following conditions: 1. System is installed in accordance to the TERM-seal (Aust) Pty Ltd instructions TERM Seal Multipurpose Passive For Waterproofing and TERM Seal Multi-purpose Active For Waterproofing, Version Note: These instructions are available from TERM- Seal (Aust) Pty Ltd (Facsimile ). 2. Where required by the relevant State regulatory authority, the membrane is installed by licensed installers. 3. The system is fully supported by one or more of the following substrates, the surface of which is in a sound, clean and free of dust: (a) substrates for general walls in wet areas including shower recesses concrete, fibre cement sheet, water-resistant plasterboard, cement render, brick/block masonry. (b) substrates for floors including shower recesses concrete, compressed fibre cement sheet, flooring grade plywood, particle grade flooring, ceramic tile underlay or mortar bed (tile screed). Where a sound control screed is used consult with TERM-Seal (Aust) Pty Ltd to check that the sound control screed is compatible with the membrane. (c) decks or balconies concrete, exterior grade plywood flooring or compressed fibre cement sheeting. 4. The membrane is allowed to dry before it is covered by a mortar bed or tiling. Note: The applicant recommends 7 days curing time at 20ºC before water testing. 5. Floor waste for substrates other than concrete, is: (a) Fitted through a neat hole in the substrate, such that there is no more than a 5 mm gap between the pipe work and the substrate, and (b) Fixed securely to the substrate with a flanged fitting. 6. The floor tiles in a shower recess are laid on a slope to the drainage outlet in accordance with local statutory requirements. 7. The system is not used as a water vapour barrier. BUILDING CODE of AUSTRALIA In the opinion of CSIRO Appraisals, the system described in this Technical Assessment and installed under the conditions listed herein will satisfy the performance requirements of Clauses FP1.4 & FP1.7 (Volume 1 Class 2-9 buildings) and P2.2.2 & P2.4.1 (Volume 2 Class 1 and 10 buildings Housing Provisions) of the Building Code of Australia (2006) as the membrane meets the waterproofing requirements of AS Notes: (i) While the membrane provides the waterproof sealing required of the BCA, it is reliant on being supported by a suitable substrate and protected by an overlaying wearing surface. (ii) The inclusion of this clause with reference to the BCA is aimed at assisting those involved in the design, specifying and building approval/permit process to relate the Appraisal to the relevant Performance Requirements of the BCA. (iii) Any changes made to the BCA will be reviewed during the term of validity of this Technical Assessment and, where necessary, any amendment required will be published on the CSIRO Appraisals web pages on RELATED INFORMATION VALIDITY OF THE ASSESSMENT Condition: This Technical Assessment applies only to the use of Waterproofing described herein. Withdrawal: This Technical Assessment will be withdrawn or amended if CSIRO Appraisals considers that a change in design or manufacturing quality renders the basis of the appraisal invalid, or if reported field experience convinces CSIRO Appraisals of unsatisfactory quality or performance.

3 3 Term of Validity: This Technical Assessment will lapse three years after the date of issue unless revalidation has been requested and granted (see back page). Technical Assessments may be amended during the term of validity. Users of this Technical Assessment should verify that it remains valid and is the current version by checking on the CSIRO Appraisals website: RELEVANT DOCUMENTS Waterproofing, Version AS , Waterproofing requirements for wet areas within residential buildings APPROVED ASSESSMENT EXTRACT Waterproofing as distributed by TERM-seal (Aust) Pty Ltd (ABN ), Port Macquarie, New South Wales are suitable for use as a waterproofing system for wet areas, decks and balconies which are covered by tiles, pavers, stone or other suitable wearing surface when the conditions listed in CSIRO Appraisals Technical Assessment 338 are fulfilled. APPRAISAL DESCRIPTION The following description is based on information provided by the applicant. General: Waterproofing are based on waterproofing compound that meets the requirements of AS/NZS Wet area membranes. Reo-Band is a woven fibre polyester mat of a mass of 44 g/m². It is available in widths of 75, 100,150 and 200mm and is used to reinforce the membrane over joints or cracks in the substrate. Installation: The substrate surface must be free of dirt, dust, grease or any other loose material. It must have a smooth surface to insure that a correct dry film thickness of membrane is achieved. Any surface defects such as lumps, cracks or broken sheeting must be repaired before application of the membrane. The membrane is applied in two coats at a rate of 0.5l/m² and allowed to be touch-dry between coats. In normal cure conditions a touch dry surface is achieved in 3 to 4 hours. Detailing over cracks and joins Cracks wider than 1 mm must be widened to 8 mm and to a depth of 8 mm then filled with TERM Seal Multi-purpose. Narrower cracks do not require this preliminary preparation. Then apply a 50 mm wide bond breaker tape over the crack/joint. Apply a coat of the membrane over the bond breaker tape to a width just wider than the width of the Reo-Band to be used. Reo-Band is available in width of 75, 100, 150 and 200 mm. Press the reo-band into the coat of the membrane and apply a second coat to fully wet-out the Reo-Band. Cover the area treated with Reo- Band with a third coat when the first coat of membrane is applied to the rest of the area to be waterproofed. Wet areas The area to be covered in wet areas are in accordance with AS Waterproofing of wet areas within residential buildings. Floor wastes, including the shower, must be fitted with a leak control flange to enable drainage at the membrane level. Shower bases Showers are the most critical area within wet areas. They are given the highest risk classification in AS The floor wall joint is to be treated as required in 3.2 above Covering cracks and joints in substrate. This detail is also required for all internal vertical corners within the shower area to a height of 1800mm. The membrane is to be brought up the walls to a height of at least 150 mm or 25 mm above the maximum water level that can be retained within the shower area. The height of the shower screen sill needs to be included in the maximum water level retained within the shower area. For a shower that terminates at a hob, bring the membrane up over the hob and down onto the floor and extend the membrane onto the general bathroom floor area at least 100 mm. If the substrate within the shower area to be covered by the membrane is particleboard then it is recommended that fibre cement sheet is screwed and glued to the particleboard flooring within the shower area. Cleaning Tools can be cleaned in soapy water while the membrane is still wet.

4 4 Protection If the finished membrane is to be left for an extended period before it is covered, then protection of the membrane should be undertaken after it has cured adequately. The surface of the membrane needs to be inspected prior to it being covered with the final finishing and any damage repaired prior to it being covered by the final finishing. DESIGN INFORMATION General: Based on the information provided by the applicant, Waterproofing when used as a waterproofing membrane will meet the requirements of AS Waterproofing of wet areas within residential buildings and is suitable for the waterproofing of decks, balconies and retaining walls. Waterproofing have not been appraised for suitability for use as a termite barrier system. Please refer to CSIRO Appraisal s Technical Assessment # 309 for Term-Seal Multipurpose and FRM Passive system and Technical Assessment # 326 for Term-Seal Multipurpose and FRM Active system which have been appraised for suitability for use as termite barrier systems. Thickness/coverage rate: Waterproofing are installed in a minimum of two coats to give a dry film thickness of not less than 1 mm, achieved when applied at a total coverage rate of 1.5 l/m². Durability: Waterproofing when used as a waterproofing membrane are designed to have a service life compatible to that of the overlaying tiles. BASIS OF APPRAISAL CSIRO Appraisals has assessed the following aspects in undertaking the appraisal: (a) The system as fulfilling the requirements of AS Waterproofing of wet areas within residential buildings, (b) The applicant s installation instructions. (c) The physical properties of the cured membrane. (d) The ability of the system details to cope with movements that occur between joins and cracks in the substrate and junctions between one substrate material and another. The following documents and inspections were used in carrying out the appraisal: Manufacturer s and Installation Information: 1. TERM-seal (Aust) Pty Ltd, Unit 8, Bellbowrie Street, Port Macquarie, NSW Installation Instructions TERM Seal Multipurpose Passive For Waterproofing and TERM Seal Multi-purpose Active For Waterproofing, Version : These contain the installation procedures for the use of the two materials for use as a waterproofing membrane. Reports: 1. CSIRO Manufacturing & Infrastructure Technology, PO Box 56, Highett, Victoria, Report No (November 2005): This report is on the testing of the membrane to the requirements of AS/NZS Wet area materials. The results show that it meets all of the requirements for Class II membrane. A Class II membrane required the use of a bond breaker tape where movements over points where there are discontinuities in the substrate. Inspections: CSIRO Appraisals representatives have inspected installations of the systems and found the level of performance satisfactory. S. Hanson CSIRO Appraisals

5 5 CSIRO Appraisals is a project of CSIRO Manufacturing and Infrastructure Technology providing a range of assessment products including: Technical Assessments full fitness for purpose appraisals of innovative products, systems or materials that may or may not be covered by Australian Standards or building regulations. Interim Reports appraisals of products that have not yet reached the fully developed or manufacturing phase. They aid with product development and may be used as a step towards a subsequent Technical Assessment. Certification Assessments appraisals of products, systems or materials solely against the requirements of the BCA and used for gaining approval from Federal or State authorities. From 1978, under the auspices of the Australian Building Systems Appraisal Council (ABSAC), CSIRO ran an appraisal service in conjunction with the Australian Institute of Building Surveyors, the Housing Industry Association, the Insurance Council of Australia and the Master Builders Association. In 1999, CSIRO Appraisals was formed to continue the business of ABSAC under the sole patronage of CSIRO. This new scheme retains the committee structure of technical and interstate advisers that operated as ABSAC. All past ABSAC publications and appraisals are being continued and supported by CSIRO Appraisals. CSIRO Appraisals is a founding member of the World Federation of Technical Assessment Organizations Technical Assessments are intended to help all those concerned with the approval, specification and use of new products or systems. They are objective assessments of the fitness for purpose of the product, system or material but are not approvals or endorsements. They may be submitted to approval authorities as part of the justification process required to obtain approval. Each Technical Assessment has been prepared by CSIRO Appraisals and then reviewed, revised and finally endorsed by the Technical Advisory Committee (TAC), detailed below. CSIRO makes the appraisals on a national basis by obtaining input from regional committees in each State and Territory to take account of variations in local building regulations, practice and local climatic features. CSIRO Appraisals bases its assessment on the product and information it receives and cannot accept responsibility for deviations in the manufactured quality and performance of the material, product or system. However, Technical Assessments will be withdrawn where adequate quality or performance has not been maintained. Technical Assessments are given a term of validity of three years from the date of issue. They are reviewed at the end of the term of validity which may be extended for a subsequent three-year term. Users of Technical Assessments should verify that Technical Assessments remain valid and are the current version by checking on the CSIRO Appraisals website: A Technical Assessment must not be copied, in whole or in part, without authorisation by CSIRO Appraisals. Where permission is granted, copies must be of the entire document. TECHNICAL ADVISORY COMMITTEE G. Geary (Chairman) Australian Institute of Building Surveyors M. Fagan Australian Institute of Building R. Goodall Master Builders' Australia Inc. M Maffucci Standards Australia R. Oke National Association of Testing Authorities, Australia C. F. Woods Housing Industry Association B. Schafer Industry Advisor A. Griffin C H Group S. Hanson (Project Leader) Manufacturing & Infrastructure Technology, CSIRO J. Sinclair Manufacturing & Infrastructure Technology, CSIRO REGIONAL REVIEW COMMITTEES New South Wales Northern Territory South Queensland Western Australia South Australia J. Lewer F. Finocchiaro S. Kajewski C. Anderson M. Andruchowycz B. O'Mara R. Luxton K. J. Rauber R. A. Wallis N. Kirkham D. Malone A. McKeough P. Nowland H. Vormelker Victoria North Queensland Tasmania ACT M. Hopkins M. Collard A. Humphreys S. Paterson P. Moore R. Horton P. Phillips G. Reardon G. Driscoll

6 1. SOURCE ORGANISATION 2. ORGANISATIONAL UNIT Technical Secretariat 3. TYPE OF DOCUMENT/SERIES 4. DOCUMENT NUMBER CSIRO Technical Assessment 338 A. INDEXING NUMBER ISSN B. FILE NUMBER(S) 579 C. RELEASING AUTHORITY CSIRO D. FOR ENQUIRIES CONTACT CSIRO Appraisals (03) TERM-seal (Aust) Pty Ltd (02) TITLE/SUBTITLE and TERM Seal Multi-purpose Active For Waterproofing 6. AUTHOR(S) (Give Affiliation of External Authors or Co-authors) S. Hanson J Sinclair 7. PUBLISHER AND PLACE OF 8. PUBLICATION REFERENCES PUBLICATION CSIRO/Melbourne - 9. DATE OF ISSUE 10. NO. OF PAGES 11. PRICE (Month, Year) AND FORMAT E. DOCUMENT STATUS DRAFT DOCUMENT INTERIM DOCUMENT FINAL DOCUMENT F. DOCUMENT STATUS NO RESTRICTIONS IN CONFIDENCE CLASSIFIED G. FOR DOCUMENTS PREPARED UNDER CONTRACT CONTRACT NO.: CONSULTANT'S NAME AND ADDRESS: May /A4 12. SUPPLEMENTARY NOTES 13. KEYWORDS (Up to 15 entries, Alphabetical Order Preferred, Divide by Semicolons) H. RELATED DOCUMENTS J. OTHER/OPTIONAL INFORMATION CSIRO Appraisals; floors; membrane; walls; waterproofing; wet areas. 14. ABSTRACT (CSIRO Appraisals Approved Assessment Extract) Waterproofing as distributed by TERM-seal (Aust) Pty Ltd (ABN ), Port Macquarie, New South Wales are suitable for use as a waterproofing system for wet areas, decks and balconies which are covered by tiles, pavers, stone or other suitable wearing surface when the conditions listed in CSIRO Appraisals Technical Assessment 338 are fulfilled.