Radon Protection New Buildings. Tim O Neill

Transcription

1 Radon Protection New Buildings Tim O Neill

2 Icopal, founded in production facilities worldwide and more than 90 offices in Europe, North America and Asia Leading manufacturer of products for the protection and waterproofing of building constructions, particularly roofing materials and waterproof membranes

3 Radon Protection New Buildings

4 1 Dundrum Town Centre 1 2 Naas General Hospital 3 Blackpool Shopping Centre, Cork Midland Regional Hospital, Tullamore 4 5 Ballymun, Housing 5 Protection for Everyone

5 Agenda Building Regulations Technical Guidance Doc Parts C & D Best Practice - New Buildings Radon Protection System Typical problems and suggested solutions

6 The Legal Requirement Building Regulations Dangerous substances C3 Reasonable precautions shall be taken to avoid danger to health and safety caused by substances (including contaminants) found on or in the ground to be covered by a building

7 Technical Guidance Doc. C Section 2 - Dangerous Substances Amendment 2004 Inclusion of RPII Survey - Radon in Dwellings

8 Technical Guidance Doc. C Section 2 - Dangerous Substances RPII Survey - Radon in Dwellings Reference Level 200 Bq m-3 Used with permission of RPII

9 Technical Guidance Doc. C Section 2 - Dangerous Substances Amendment 2004 Inclusion of RPII Survey - Radon in Dwellings Radiological Protection Act, 1991 (Ionising Radiation) Order 2000 S.I. 125 of 2000 Workplaces National Reference Level 400 Bq m -3

10 Technical Guidance Doc. C Section 2 - Dangerous Substances Strong emphasis on protecting the radon membrane BEFORE DURING & AFTER Installation

11 Technical Guidance Doc. C Section 2 - Dangerous Substances Pipe-work from standby Radon sumps needs to be CAPPED & CLEARLY MARKED

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13 Building Regulations Part D Materials and workmanship D1 All works to which these regulations apply shall be carried out with proper materials and in a workmanlike manner

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15 Classification Moisture Barrier Type A EN 13967

16 Legislation Health & Safety Section [17] (2) of the 2005 Safety, Health & Welfare at Work Act A person who designs a project for construction work shall ensure, so far as is reasonably practicable, that the project (a) is designed and is capable of being constructed to be safe and without risk to health, (b) can be maintained safely and without risk to health during use

17 Impact of Building Regulations Radon in all homes in North Cork High Radon Areas Survey Post Regs ( ) Pre Regs ( ) Homes measured Geometric mean Bq/m 3 Arithmetic mean Bq/m 3 Maximum Bq/m 3 No. homes >200 Bq/m 3 (%) (19%) (35%) Source: RPII

18 Impact of Building Regulations Radon in a 10 km grid square (near Mitchelstown) Survey Post Regs ( ) Pre Regs ( ) Homes measured Geometric mean Bq/m 3 Arithmetic mean Bq/m 3 Maximum Bq/m 3 No. homes >200 Bq/m 3 (%) (39%) (92%) Source: RPII

19 Impact of Building Regulations Radon in homes in Tralee (private homes) Survey Post Regs ( ) Pre Regs ( ) Homes measured Geometric mean Bq/m 3 Arithmetic mean Bq/m 3 Maximum Bq/m 3 No. homes >200 Bq/m 3 (%) ,326 9 (21%) (45%) Source: RPII

20 Radon - Points of Entry Principle of Radon Entry

21 Best Practice 1 INSTALL RADON MEMBRANE

22 Best Practice 2 INSTALL RADON STANDBY SYSTEM Easi-Sump Cap-Link Easi-Sump

23 Best Practice 3 PROPER VENTILATION

24 Best Practice 4 TEST COMPLETED BUILDING

25 Active Protection Best Practice 5 ACTIVATE FAN IF REQUIRED

26 Best Practice 6 RE-TEST BUILDING MAINTAIN FAN

27 Radon Protection System Typical problems and suggested solutions

28 Radon Protection System Check List - Sumps

29 Pipe terminal Radon Protection System Check List - Sumps

30 Carefully Consider location of Easi-Sump Cap-Link

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32 Radon Protection System Check List - Sumps Number of sumps / m 2

33 Radon Protection System Check List - Sumps Hardcore Specification

34 Radon Protection System Check List - Sumps Fall on pipe BACK to sump

35 Radon Protection System Check List - Sumps Opes in rising walls

36 Radon Protection System Check List - Membrane Site Preparation

37 Properly Blinded No unsupported membrane

38 Radon Protection System Check List - Membrane 150 mm overlap Accessories covered by certification?

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40 Pre-formed one-piece Top-Hat

41 WRONG!

42 Typical Installation Problems

43 Typical Installation Problems

44 Typical Installation Problems INCORRECT CORNER DETAIL

45 Typical Installation Problems Cavity not sealed Potential Slip plane

46 EXTRA STRENGTH REINFORCED MEMBRANE

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48 Best Practice Installation Easi-Load Load Radon Corner Assembly Internal and External Corner pieces trimmed to suit up-stand height as required

49 Best Practice Installation Easi-Load Load Radon Corner Assembly Corner cap Pre-applied Sealant Strip designed to deal with differential settlement

50 Best Practice Installation Apply Monobond RT double-sided sealant tape

51 Best Practice Installation Easi-Load Load Radon Damp Proof Course

52 Best Practice Installation Seal Floor Areas with suitable membrane

53 Best Practice Installation Heavy-duty Reinforced membrane 6 layers with aluminium Foil Can handle heavy foot traffic and certain site machinery Suitable for use under ground- beams, around piles etc Very high resistance to radon, methane, CO 2 and moisture RAC

54 Best Practice Installation Reinforced membrane 6 layers with aluminium Foil Can handle moderate to heavy foot traffic Medium to large floor areas Very high resistance to radon, methane, CO 2 and moisture Reflex Super

55 Best Practice Installation Reinforced membrane incorporating 4 layers Outer layers of blown PE to give high abrasion resistance RMB 400 Medium to large floor areas Can handle moderate to heavy foot traffic

56 Best Practice Installation Reinforced membrane incorporating 4 layers Can handle moderate foot traffic Small to medium floor areas RMB 350 Protective layer required

57 Best Practice Installation Unreinforced membrane single layer Can handle light foot traffic (As required for installation) Necoseal Small floor areas Protective layer required

58 Best Practice Installation Monarflex Top-Hat Monarflex Flashing

59 Best Practice Installation multiple services irregular shapes steel/concrete columns Easi-Pour Liquid Radon Sealant

60 Conclusion.One size rarely fits all!