Glass partition system applications
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Our RIBA approved CPD is about glass partition system applications and performance criteria, covering fire and acoustic performance of glass, protection against falling and DDA regulations with interesting movie clips showing fire and impact tests being carried out. It covers 4 of the 10 RIBA core curriculum which are: * Being safe: Health and Safety - 54 * Internal Management: professionalism, practise, business + management - 18 * Designing and building it: design, construction, technology and engineering - 454 * Access for all: universal/inclusive design – 37 Our CPD has been very well received so far in line with the following comment. “I was impressed by the amount of effort that Genghis had put into his material. The presentation covers a wide spectrum of glazing within partitioning and will be advantageous to Architects in learning of the possibilities. It will make an interesting and good CPD” David Preston, RIBA CPD assessor
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Glass partition system applications
- 2. » Fully independent, UK based specialist manufacturer of glass partition and architectural glazing systems. » 7 Regional offices . UK contracting coverage » Showroom in London » Over 100 employees - Turnover - £25 million p.a » All fire and acoustic glass solutions extensively tested to EN standards giving a wide portfolio of performance options » Products underpinned by technical assistance, support and advice. » Full drawing and specification service. » NBS plus and BIM objects. 2
- 3. • Different environments that glass partitions are used in. • Advantages of using a proprietary system. • Fire Safety-Approved document B • Acoustic Performance –Approved Document E • Protection Against Falling, Collision and Impact –AD K • DDA Regulations –Approved Document M • Points that may be of interest 3
- 7. 7 Laboratory of Molecular Biology
- 9. 9 Ferrari & Maserati Showroom
- 11. 11
- 12. » New common test standard – Euro Norm Defines the classifications of Fire Glass » Integrity – » Integrity & Radiation heat control – » Integrity & Full Insulation – 12
- 13. 13 Aluminium, Steel or Timber frames. No thermal break Silicon joints or Mullions, Frameless Glass Doors in aluminium frames Framed glass door leaves FRAMEWORK
- 14. 14 Single layer 6mm Glass Embedded Wire Single layer Multiple glass layers Interlayer Glass Tempered glass
- 15. 15Fire Safety
- 16. 16
- 17. 17
- 18. 18 Glass Interlayer Special coated outer layer Glass Clear fire resisting gel Spacer Edge Seal
- 20. 20 Thermal Break required. Steel or Timber Frames Glass Doorleaves to have steel frames Fire Safety FRAMEWORK
- 21. 21 Method A Multiple glass and silicate layers Method B Gel filled unit Glass Silicate interlayers Clear fire resisting gel Glass Spacer Edge seal Fire Safety
- 22. 22
- 23. 23 Fire Safety
- 24. 24 EI integrity/insulation glass in steel frames with timber doorsets. 30/30 &60/60 Fire Safety
- 25. 25 EI integrity/insulation stainless steel glass doors. 30/30 &60/60 Fire Safety Stiles 20mm wide Rails 90mm high Max Height 3070mm
- 26. E 30 or 30/0 E 60 or 60/0 EW 30 EW 60 EW 90 EW 120 EI 30 or 30/30 EI 60 or 60/60 EI 90 or 90/90 EI 120 or 120/120 The most common way specifiers or architects word fire glass requirements is either; 30,60,90 minutes Or 30,60,90 minutes Fire Safety
- 27. 27 Fire Safety
- 28. » 60 minute with insulation (EI60) for Fire-fighting separation » 30 minute with insulation (EI30) is allowed in the following areas; » Between shaft and protected lobby/corridor » Enclosing special fire hazard » Between storeroom and sales area in shops » In care homes 28 Refer to Approved Document B Volume 2
- 29. 29 • BS EN ISO 140 Acoustics – measurement of sound insulation (means of measurement) • BS EN ISO 717 Acoustics – ratings of sound insulation (single figure classification) Sound Resistance Level Result 20Rw (dB) Normal speech readily audible 25Rw (dB) Loud speech readily audible 30Rw(dB) Loud speech audible, under normal conditions 35Rw(dB) Loud speech audible, but difficult to distinguish 40Rw(dB) loud speech difficult to distinguish 45Rw(dB) Shouting audible 50Rw(dB) Shouting barely audible
- 31. 31
- 32. 32
- 33. 33
- 34. 34
- 35. 35 Doors and side panels must be: Class 2 if the width is greater than 900mm Doors and side panels must be: Class 3 if width is more than 250mm less than 900mm
- 36. 3rd Digit The height at which the glass does not break. - For glasses A and B this will always be the same as the first number. - For toughened the glass is deemed to have passed the test having shattered into small particles. 36 1B1, 2B2 or 3B3 1st Digit (height at which the weight was dropped) 3 = 190mm, 2 = 450mm 1 = 1200mm 2nd Character A = as annealed glass, B = as laminated glass, C = as toughened glass ??
- 37. Position 1 = 1200mm Position 2 = 450mm Position 3 = 190mm Protection Against Falling, Collision and Impact
- 38. 38 Medium Duty (0.74kN/lm) – Not protecting drop Two Edge supported glass (Frameless) Glass Thickness Recommended Max. Height 10mm 2700m 12mm 3000m 15mm 3600m 19mm 4200m Protection Against Falling, Collision and Impact
- 39. 39
- 40. » Resist usage design load » Be within deflection limits (25mm @ 1100mm) » Containment requirements (toughened/laminated glass) to be considered. » Impact Performance to be met. » Glass must not break under specified impact test » Fire resistance. Choice of Glass » BS5234-2:1992, BS6180:2011, BS EN 12600(BS6206) 40
- 41. 41
- 42. 42 Spandrel Panel Options. Glass spandrel panels in the same plane as atrium glass.
- 43. 43 Spandrel Panel Options. Timber cladding on steel support frame on existing façade.
- 44. 44 Spandrel Panel Options. Plasterboard in the same plane as glass and curved corners
- 45. 45 Spandrel Panel Options. Steel spandrel panels.
- 46. 46 Manifestation on the glass At two levels, 850 to 1000mm and 1400 and 1600mm above the floor, contrasting visually with the background seen through the glass (both sides from inside and outside) in all lighting conditions. Logo or sign at least 150mm high (repeated on glazed screens) or a decorative feature such as broken lines or continuous bands, at least 50mm high
- 47. » Tax Relief for relocatable partitioning » Qualifies as Capital goods » Intention to move » 1958 shipping agent case is the example » 100 % as Annual Investment Allowance » £500,000 until December 2015 » £25,000 after 2015 » Remainder 18% per annum as Writing Down Allowance 47
- 48. 48
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- 51. 51
- 52. 52
- 53. 53 Genghis Akay Planet House Unit C3, York Road Burgess Hill, West Sussex RH15 9AD United Kingdom E: genghis.akay@planetpartitioning.co.uk M: +44 (0) 7966 399 629 T: +44 (0) 1444 247 933 W: http://www.planetpartitioning.co.uk
Editor's Notes
- Thank you for attending today. Here is a brief introduction to Planet Partitioning. We are a fully independent UK specialist manufacturer of Fire Resistant and acoustic Glass partition systems Our Head Office is in Burgess Hill, in West Sussex. We employ around 200 people in total, over 7 offices nationwide. Around ten percent of these people are in R&D who are there to provide on going developments in our product range. As a business we pride ourselves on providing technical assistance, support and advice on office Partition and atrium and fire rated Solutions to architects, specifiers and contractors
- Read through Agenda as listed
- Proprietary systems have acoustic and fire tests done extensively . Systems can be fixed underside the suspended ceiling with patresses above.. Last minute changes can be accommodated at no extra cost
- In 2001, the UK adopted the Euro Norm BS EN1363 Fire Testing Standards and all fire glass manufacturers should test their glass to these levels to comply with the imminent introduction of CE Marking. EN 13501-2 Defines the classifications of Fire Glass E, EW. Whereas some European countries see Radiant Heat Control Glass (EW) as a minimum standard for fire protection glass, the UK Building Regulations do not acknowledge EW glass. In some European countries the use of Integrity (E) only glasses is restricted. For the rest of this presentation you will see E, EW and EI referenced as it is in industry.
- Integrity Glass or E Classification - The first and most basic of the fire resistant glasses. When being exposed to a fire it has been designed and manufactured to perform; by preventing Flames from a Fire penetrating through onto the unexposed side, and also by preventing hot gases penetrating through to the unexposed side. It does not however prevent any heat penetrating through the glass and does not stop radiant heat.
- Integrity Glass has three alternative methods of manufacture and finish; Wired Glass is where float glass has wire embedded into it. The thickness is between 6-7mm. Modified Toughened Integrity Glass is where toughening (or tempering) process on a single pane of glass strengthens the glass. It still remains as one pane of glass though! The thickness is between 5-12mm Laminated Integrity Glass is where two or more layers of glass are bonded together to form a laminated integrity glass. The thickness is between 7-13mm
- Frameless glass leaf in fire rated glass set in aluminium doorframes.
- As integrity glass but stops radiant heat. 15kW/m2 at 1 metre distance. The glass surface is still hot on the non fire side.
- Radiant Heat Control Glass have three methods of manufacture; Coated Modified Toughened where a special coating is applied to the outer layer of the toughened glass to reflect some of the heat and in turn reduce the heat transferred through the glass. The glass is made to order as it cannot be cut once put through the process. Laminated is using two or more layers of glass with a resin or intumescent layer. The thickness of this type of glass can also vary dependant on manufacturer and is usually between 7 and 20mm. The glass is produced in sheet form, and is cut to size. Gel Filled is using two or more layers of glass with a fire resistant gel. The thickness of this type of glass can also vary dependant on manufacturer and is usually between 13 and 20mm. The glass is made to order as it cannot be cut once put through the process.
- The test shown here is of a EW30 minute Glass shown on the left and an E30 minute Glass shown on the right. The top left corner shows the time from the start of the furnace being ignited. In the top right corner the temperature of the furnace is shown. At the bottom of each area we measure the amount of radiant heat being recorded at an EN Standard distance of 1 metre way from the glass. Although we have used office furniture to depict a scenario the test is to EN Test Standards. As the time elapses you can see how the interlayer reacts to the heat and this forms a barrier reducing the amount of radiant heat penetrating through the glass. On the right side you can see how quickly the radiant heat can cause items to start smoking and then igniting. This has provided further time for people to escape safely and if necessary, for the fire brigade to get in to the area.
- Integrity & Full Insulated Glass or EI Classification – Is the “Rolls Royce” of the fire resistant glass classifications. When being exposed to a fire it has been designed and manufactured to perform; by preventing Flames from a Fire penetrating through onto the unexposed side, by preventing hot gases penetrating through to the unexposed side. And by restricting the temperature rise of the unexposed face to below 140°C. This is why it is used in certain areas of buildings according to the Approved Document B for Fire Safety in the Building Regulations.
- Integrity & Full Insulated Glass has two methods of manufacture. The first method (A) consists of a multiple number of glasses and silicate interlayers. The thickness can vary from between 15mm to 50mm dependant on manufacturer. This method has two versions of glass one for internal use and one for external use or use within a 2.5mtr distance of direct sunlight. This is due to the silicate layer being reactive to UV light and to overcome this a PVB layer (Polyvinyl Butyl), which prevents UV reaction, forms one of the interlayers within the external glass version. The glass is produced in sheet form and is cut to order. The second method (B) consists of two or more panes of either float/toughened glass and a clear fire resisting gel interlayer. A spacer is installed around the perimeter edge of the glass with an edge seal capping to prevent leakage of the gel. The thickness can vary from between 18mm to 55mm dependant on manufacturer. This version of glass is UV stable and does not have an internal/external type. The glass is made to order as it cannot be cut once put through the process. Generally the thicker the glass the longer the performance of the glass is i.e. 30/60/90 and so on.
- The test shown here is of a 30 minute Integrity & Insulated Glass. Similar to the other tests shown, the jacket has been placed 500mm away from the glass and is not touching it. You can see how the interlayers begin to react to the heat in the top corner. Eventually when each layer has reacted and the foam effect has stopped this forms a barrier restricting the temperature rise of the unexposed face to below 140°C. It is kept so low that even by the test lab turning the jacket to touch the glass you can see it doesn’t smoke or ignite. During testing if a glass passes any of the timed marks i.e. 30/60/90 the testing houses allow the test to continue until the glass fails, by this we mean fire, gases becoming exposed to the safe side. This is done to see if the glass can successfully reach the next mark i.e. 30 then onto 60. If then glass fails before the next marker it is given the last successful pass time, so a glass failing at 59 minutes 50 seconds will be rated at 30 minutes.
- two separate fire rated items can be used abutting to a common fire rated element (like a timber post). In this photo, the timber post is painted in our factory to match the colour of adjacent steel partition sections.
- Minimum framework for fire rated doorsets that is achievable with new building elements.
- Here we have some examples of how fire rated glass may be specified, including EI 60/30 where the glass has integrity for 60 minutes and insulation for 30 minutes The most common problems the industry faces is when specifications of fire resistant glasses are written incorrectly for example “30 minute fire resistant” this doesn’t tell us what level of fire resistance is required. An example of this can be a 30/0 product may be used in a screen where 30/30 glass is actually required. If the specification stated “a 30 minute fire resistant glass” and someone interpreted this as being an integrity requirement not insulated (Cost!). Another common problem is “FD30” stated for screens, the FD means Fire Door and the test is not related to screens.
- To assist specifiers, architects and building contractors in England and Wales we have the Approved Document B for Fire Safety, Volumes 1 & 2. This document is the building regulations for where and at which levels of fire resistance product should be used throughout a building be it for houses (v1) or commercial buildings (v2). I will be briefly going through this as a guide . The hand out at the end of the CPD covers which documents relate to which performance criteria.
- Read bullet points to ensure audience hear and see text
- The actual meaning of db ratings in terms that we can relate to. Provided that tested elements achieve the lab results on site.
- We perceive a 1000Hz tone louder than 100Hz tone , even when the volume is the same. This property of the human ear is taken into account in the shape of the reference curve. Reference curve specified in EN 717 section 4 is in red. This is how the human ear responds to sound. This reference curve is now moved downwards in whole db increments, until the sum of the deviation of the measured values from the shifted reference curve is maximised and less than 32 db. Only those measured values that are less than the reference values are taken into account. The Y value of this shifted reference curve (green curve) at a frequency of 500 Hz is the sought after Rw value. In this example 45dBRw.
- Range of acoustic performance that can be achieved by using single or double panes of glass
- Any framework is as good as the seals that stop sound leaks. Note how a good system has pressure seals on either side of the glass. Also , if the glass is prevented from touching the metal framework, the reverberation is prohibited. The glass is stopped from rattling when doors are slammed.
- A dropdown seal should also be used
- Approved Document K – for critical locations in internal and external walls is shown in this diagram Any pane of glass which has an overlap with the shaded area must be one of: Impact Glass A small pane Robust (commercial frontage)
- So, what does this standard format mean that we will see and write more often? The first digit (a number in this instance) is the height at which the weight was dropped at and the glass passed the impact test. The height is measured at three heights; 3 = 190mm, 2 = 450mm, 1 = 1200mm The second digit (letter in this instance) signifies how the glass breaks when it eventually breaks; A = as annealed glass, B = as laminated glass, C = as toughened glass The third and last digit (a number again) indicates the height at which the glass does not break. - For glasses A and B this will always be the same as the first number. - For toughened the glass is deemed to have passed the test having shattered into small particles.
- So, what does this standard format mean that we will see and write more often? The first digit (a number in this instance) is the height at which the weight was dropped at and the glass passed the impact test. The height is measured at three heights; 3 = 190mm, 2 = 450mm, 1 = 1200mm The second digit (letter in this instance) signifies how the glass breaks when it eventually breaks; A = as annealed glass, B = as laminated glass, C = as toughened glass The third and last digit (a number again) indicates the height at which the glass does not break. - For glasses A and B this will always be the same as the first number. - For toughened the glass is deemed to have passed the test having shattered into small particles.
- The line load that applies to atriums vary depending on the use of space. Generally Office, small meeting room=0.74kN/lm General Circulation, Shool=1.5 kN/lm Heavy circulation (cinemas , shopping centres)=3 kN/lm
- Usage design load is usually the line load . Deflection is the horizontal deflection at 1100mm. Toughened glass by itself should not be used at atriums ,drop protection. Each layer thickness should be taken into account when calculating the glass thickness.
- Extra space can be gained by extending the line of glazing beyond the slab edge but. The structure that the glass is fixed to should be considered carefully.
- The manifestation of glass is a legal requirement in areas where there is a risk of human impact (Workplace Health & Safety Welfare Approved code of practice L24 Regulation 14). The requirements are also incorporated in Building Regulations BS 6262 Part 4 Safety. The regulations relate to the glazing of internal and external walls, in public or non-domestic buildings known as critical locations. It is in such areas glass manifestation MUST BE APPLIED. It may take the form of broken or solid lines, patterns or company logos with a gap no wider than 400mm. On May 1st 2004 a new regulation Document M – Access to and Use of Buildings (2004 edition) was issued. This refers to critical locations in new buildings and refurbishments of existing buildings. From this date it is a duty of care that states the following: Glass entrance doors and glazed screens will satisfy Requirement M if: A) They are clearly defined with manifestation on the glass at two levels, 850 to 1000mm and 1400 and 1600mm above the floor, contrasting visually with the background seen through the glass (both sides from inside and outside) in all lighting conditions. B) Manifestation takes the form of a logo or sign at least 150mm high (repeated on glazed screens) or a decorative feature such as broken lines or continuous bands, at least 50mm high.
- The precedent is John Good and Sons, who in 1958 had a decision overturned at the court of appeal, where it was concluded that partitions which were intended to be movable (i.e.relocatable) to meet the different needs of the business were plant. The Annual investment allowance (AIA) introduced in the financial Act 2008 provides relief up to a value. And expenditure above this figure attracts a further % writing down allowance(WDA)
- This is polished and brushed anodized aluminium which looks like stainless-steel. This process helps with architectural glazing solutions where having special extruded aluminium sections give a sharper finis than trying to use stainless steel .
- Switchable glass panels can also be controlled with Room Booking systems or wi-fi tablets ,phones.