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October 2017

CPD Opportunity: Speciality Clad Structures Presentation
5 October 2017

CPD Opportunity: GreenED Workshop Module 1 – Online Webinars and Presentations
6 October 2017

Urban Thinkers Campus Workshop Invitation
9 October 2017

CPD On-Demand
10 October 2017

Entries Open For 2017/2018 AfriSam-SAIA Award for Sustainable Architecture + Innovation
16 October 2017

Urban Thinkers Campus Workshop Programme
17 October 2017

World Architecture Day, SAIA Gives Full Support

Obert Chakarisa (2)

Obert Chakarisa
Chief Executive Officer,
The South African Institute of Architects

 

Every first Monday of every October has been set aside as the World Architecture Day, wherein the International Union of Architects (UIA) calls for the world population to be reminded of its collective responsibility for the future of the human habitat. South African professional architects are represented on the UIA through the membership of the South African Institute of Architects, a body of architects whose membership exceeds 2,500.

 

This year’s World Architecture Day will be celebrated on Monday, 2nd October 2017 and the selected theme is “Climate Change Action!”. The tone of the theme itself demonstrates the urgency in which our collective efforts must be galvanized towards ensuring that responsible and sustainable design of all our habitat is cognisance of the negative impact such designs could have on the environment (climate).

 

The developments pertaining to the various initiatives that emanated following the 2015 Paris Climate Change Agreement to combat the impact of climate change on the environment and humanity need to be reflected upon on this important architectural day. The South African Institute of Architects (SAIA) fully supports all the efforts currently being mobilized globally in implementing the 2015 Paris Climate Change Agreement.

 

SAIA would like to take the opportunity to call upon general members of the public, all three levels of government and the built environment at large to insist on engaging professional architects for all building projects so that they can “tap” into the expertise of the crème of the architectural profession.

 

Over the years, SAIA has noted with regret the unfortunate tendency where the critical role professional architects play in the built environment is not understood and in fact undermined. As we celebrate the World Architecture Day on the 2nd October 2017, let’s take the time to look around our environment, marvel at the work of professional architects and contemplate on initiatives that will assist in being mindful of the climate change agenda.

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Architects and Climate Change Adaptation and Mitigation

Llewellyn van Wyk

Llewellyn van Wyk
Principal Researcher, CSIR
Thursday, 14 September 2017

Introduction and Background

Climate change is projected to impact drastically in southern African during the 21st century under low mitigation futures.1 African temperatures are projected to rise rapidly, at 1.5 to 2 times the global rate of temperature increase.2 Moreover, the southern African region is projected to become generally drier under enhanced anthropogenic forcing.3 These changes will have a range of potential impacts on the South African environment and economy, including impacts on energy demand (in terms of achieving human comfort within buildings and factories), water security (through reduced rainfall and enhanced evapotranspiration) and agriculture (in terms of changes in crop yield).4

Climate change impacts will however not only manifest through changes in average temperature and rainfall patterns, but also through changes in the attributes of extreme weather events. For the southern African region, generally drier conditions and the more frequent occurrence of dry spells are plausible over most of the interior.5 Tropical cyclone tracks are projected to shift northward, bringing more flood events to northern Mozambique and fewer to the Limpopo province in South Africa.6 Cut-off low related flood events are also projected to occur less frequently over South Africa in response to a poleward displacement of the westerly wind regime.7 Intense thunderstorms are plausible to occur more frequently over South Africa in a generally warmer climate.8

On the basis of the above projections, architects should take the following steps.

Land Use and Ecology

Site selection

Analyze the risks associated with the particular site and if at all possible, avoid development in the following areas:

  • Steep slopes may be subject to slip
  • Clay soils will be subject to extensive heave and shrinkage
  • Coastal properties will be subject to sea level rise and/or sea surge
  • Flood plains will change, i.e., 1:100-year occurrence could become a 1:50 occurrence, and 1:50 a 1:20, and so on. Floor heights above natural ground level should be adjusted accordingly.
  • Sites adjacent to open veld will be subject to more intense and frequent veld fires.
  • Wind speeds are likely to increase so additional precautions are required in areas with existing high wind speeds.

Ecological value of the site

Climate change influences local biodiversity: as climate changes plant species migrate in response. The anticipated pattern is for specie to generally migrate in a south easterly direction except for the eastern coast where the anticipated migration is in a south westerly direction. Look in these directions to establish what plant species to cultivate on the site.

Establish an ecological baseline of the site and use the development to enhance the value.

Avoid introducing species that are not indigenous to that area, even if they are indigenous to South Africa. Remove existing species that are not indigenous to the location.

Protect and retain all features of ecological value, particularly where these features are connected to a larger ecological system or designated system including forest, wetland, water courses, grassland, or any other habitats considered to have ecological value.

Minimise disruption to the site in all forms but specifically bulk excavations, cut-and-fill, and terracing. Restrict the construction area of the site to a minimum, and protect those areas that fall outside of the construction area.

Take steps to reduce the impact of future extreme events on the site particularly flooding, sea surge and fire. For example, avoid concentrated stormwater discharge points that typically results from downpipes and stormwater channels. A range of Sustainable Urban Drainage System (SuDS) components are available to deal with different conditions.

Plant as many trees on the site as is appropriate to the location: this will stabilize the soil, provide shade and shelter to the building, and reduce the heat island effect.

Use permeable pavement throughout to reduce runoff characteristics and to allow ground infiltration of rainwater.

Building Envelope

Building envelopes will need to be responsive to higher temperatures: these responses should be based on passive approaches rather than active (mechanically supported) approaches.

Roof insulation values should be appropriate to the future forecast temperatures of the location. Since the majority of radiation in South Africa is vertical, the roof design forms the most effective barrier to thermal gains. Avoid roof glazing: where this is not possible, roof glazing should be capable of being completely closed off from heat transfer.

Heat reflecting surfaces should be introduced on all horizontal surfaces to reduce heat transfer and the heat island effect.

Adjustable ventilated attics are an effective way of dealing with higher temperatures.

All external wall openings should be protected. Over and above shading, adjustable shutters that increase the thermal resistance of external wall openings should be used.

The thermal resistance of walls should be appropriate to the future forecast temperatures of the location.

Ventilation rates should be increased beyond the minimum requirements of the NBR. The appropriate level of ventilation will be determined by the future forecast temperatures for the location. Displacement ventilation should be used to increase air exchange rates. Take particular note of prevailing wind conditions to ‘drive’ displacement ventilation.

Services

Services should be positioned in accordance with risk analysis for the location. In areas of flooding, services should be elevated wherever possible. In areas of fire risk or high wind velocities services should be buried.

Target a zero dependent building, i.e., net zero water, energy, waste, sanitation, and ecological loss. For services this will require significant reductions in demand (improved efficiencies through higher performance specifications) in order to meet off-grid supply capabilities.

Water

Water resources are and will continue to become increasingly scarce. Use water efficient fittings throughout the development. Design to use renewable water (rainwater, stormwater, greywater, blackwater, and condensate water). Preferably design a twin-pipe system where rainwater, stormwater and greywater can be recycled. A number of SuDS components can be used to facilitate this on site. In addition, there are a number of technologies that support closed-loop water and sanitation systems: the use of these technologies is encouraged.

In line with the requirements listed in site ecology, planting that requires regular watering, such as lawns, should be avoided.

Materials

Materials will be exposed to harsher environmental conditions including solar radiation. Subject all material choices to a life cycle assessment relevant to the future climate projections for the location.

Appropriate material choices are required in areas of high fire risk, bearing in mind that veld fire events will be both more frequent and intense.

Architects have a significant role to play in adapting the built environment to climate change impacts. Lessons from Houston and Florida floods have confirmed that the built environment is more resilient where strategic interventions have been put in place.


1 Niang I, Ruppel OC, Abdrabo M, Essel A, Lennard C, Padgham J, Urquhart P, Adelekan I, Archibald S, Barkhordarian A, Battersby J, Balinga M, Bilir E, Burke M, Chahed M, Chatterjee M, Chidiezie CT, Descheemaeker K, Djoudi H, Ebi KL, Fall PD, Fuentes R, Garland R, Gaye F, Hilmi K, Gbobaniyi E, Gonzalez P, Harvey B, Hayden M, Hemp A, Jobbins G, Johnson J, Lobell D, Locatelli B, Ludi E, Otto Naess L, Ndebele-Murisa MR, Ndiaye A, Newsham A, Njai S, Nkem, Olwoch JM, Pauw P, Pramova E, Rakotondrafara M-L, Raleigh C, Roberts D, Roncoli C, Sarr AT, Schleyer MH, Schulte-Uebbing L, Schulze R, Seid H, Shackleton S, Shongwe M, Stone D, Thomas D, Ugochukwu O, Victor D, Vincent K, Warner K, Yaffa S (2014). IPCC WGII AR5. Chapter 22 pp 1-115 2014

2 James, R. and Washington, R. 2013. “Changes in African temperature and precipitation associated with degrees of global warming.” Climatic Change 117 859-872. DOI 10.1007/s10584-012-0581-7; Engelbrecht, F., Adegoke, J., Bopape, MM., Naidoo, M., Garland, R., Thatcher, M., McGregor, J., Katzfey, J., Werner, M., Ichoku, C. and Gatebe, C. 2015. “Projections of rapidly rising surface temperatures over Africa under low mitigation.” Environmental Research Letters.

3 Christensen, J., Hewitson, B., Busuioc, A., Chen, A., Gao, X., Held, I., Jones, R., Kolli, R., Kwon, W-T., Laprise, R., Magana Rueda, V., Mearns, L., Menendez, C., Raisanen J, Rinke A, Sarr A, Whetton P (2007). Regional climate projections. In: Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt, AB, Tignor M, Miller HL (eds). Climate change 2007: the physical science basis. Contribution of Working Group I to the Fourth Assessment Report of the Inter-governmental Panel on Climate Change. Cambridge: Cambridge University Press; Niang et al, 2014; James and Washington 2013; Engelbrecht et al, 2015)

4 Engelbrecht et al, 2015.

5 Christensen et al 2007; Engelbrecht, F., McGregor, J. and Engelbrecht, C. 2009. “Dynamics of the conformal-cubic atmospheric model projected climate-change signal over southern Africa.” Int J Climatol 29 1013-1033.

6 Malherbe, J., Engelbrecht, F. and Landman, W. 2013. “Projected changes in tropical cyclone climatology and landfall in the Southwest Indian Ocean region under enhanced anthropogenic forcing.” Clim Dyn 40 2867-2886.

7 Engelbrecht 2013

8 Ibid

 

September 2017

It’s Time to Saddle Up for an Unforgettable Mountain Biking Experience
5 September 2017

Third Award, Baku
6 September 2017

CPD Opportunity – Bamboo : Sustainable & Innovative
14 September 2017

Outcome of the Recent Elections for SAIA Officers 2018
22 September 2017

SACAP Call For Nominations Of 5th Term Council
27 September 2017

Professional Risk Mitigation

Retrenchment, Today’s Reality

August 2017

The 29th Sophia Gray Memorial Lecture Invitation
8 August 2017

PROCSA Agreements Webinars – CPD Opportunity
8 August 2017

Minutes from Engagement with Department of Public Works
14 August 2017

Scam Alert
14 August 2017

COROBRIK SAIA AWARDS : Nomination of Adjudicators
15 August 2017

Improper Conduct Letters from SACAP
17 August 2017

UIA Seoul 2017 – A Reminder to Enjoy the Soul of the City
17 August 2017

Women in Architecture – Further Contextualization
18 August 2017

Fifth Annual Going Green Conference
23 August 2017

CPD Opportunity – Don’t Miss Out
28 August 2017

NCS Colour Courses September and November
29 August 2017

An Opportunity for Young Entrepreneurial Architects
30 August 2017

Newsletter June 2017

Leadership@SAIA

BUSINESS@SAIA

Information@SAIA

July 2017

Reminder: Invitation for Submission to Architectural Digest Volume 22
4 July 2017

Individual Awards – Your Chance to Honour Fellow Architects and those Supportive of Architecture
11 July 2017

Universal Design – A CPD Opportunity
20 July 2017

Minister of Public Works Responds To SAIA’s Call For His Intervention In SACAP Challenges
21 July 2017

Finance@SAIA

Frequently Asked Questions about SAIA membership

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Despite having implemented the new constitution in 2015, some members have questions about SAIA membership. Here are some answers to those questions frequently asked by members.

1.   Why dual membership?

According to SAIA’s Constitution, which came into effect on 1 July 2015, membership is recognised in two main categories: – individuals and SAIA practices.

  • Individual membership of SAIA is voluntary and regionally based. Members of regional institutes, who are registered as Professional or Candidate Architects, are enrolled as SAIA members through their respective Regions. Individual subscriptions comprise a Regional component and a SAIA component. Regional Institutes issue tax invoices for individual membership subscriptions, which include the individual’s SAIA portion of the subscription.
  • A SAIA practice is one that consists of at least one principal who is a member of SAIA. Status as a SAIA Practice is mandatory if an architect is a member of SAIA in their individual capacity. Such members should submit an annual declaration stating the architectural staff complement of the practice as at the 1st July in order for SAIA to calculate the applicable practice levy for the year. SAIA issues the relevant tax invoice.

2.   What is my obligation towards SACAP if I have a practice?

  • A person, or persons who operate a practice in their own name or as a partnership, a close corporation, a company or similar, must submit details of the practice name and address to SACAP within 30 days of establishing the practice.
  • If, for business reasons, a person operates more than one firm or company from the same address, each practice must be recorded with SACAP.
  • If a firm or company has more than one office, each branch office must be recorded with SACAP.
  • Joint ventures set up by two or more practices for a specific venture do not necessarily constitute a practice, unless it is recorded with SACAP as a separate practice entity.
  • This listing of architectural practices is updated on a continual basis by SACAP in accordance with the regulations.

3.   What is a SAIA practice?

  • Every SACAP recorded practice, and where at least one principal is an Architect Member of SAIA, is deemed to be a SAIA practice.

4.   Who is an employee?

  • An employee is a person employed by the practice and includes persons on performance-based term contracts and part-time staff.
  • An employee is defined in the Income Tax Act (1962) and the Skills Development Levies Act in more detail but, simply put, it includes persons whose remuneration is subject to Unemployment Insurance Fund (UIF) contributions.

5.   What is the architectural staff complement?

  • The total number of architectural staff in a practice is determined by the number of principals and architectural (architects, technologist and draughts persons) employees.

6.   What are the annual subscriptions and levies for 2017/18?

6.1  The SAIA (SA Institute of Architects) component for individual membership is:(Regional Institutes issue tax invoices for individual membership subscriptions which include the individual’s SAIA portion of the subscription.)

Subs per year Subs per month
Category VAT Excl. VAT VAT Incl. VAT Excl. VAT VAT Incl.
Architect Member 876-00 122-64 998-64 73-00 10.22 83-22
Retired Member 378-00 52-92 430-92 31-50 4-41 35-91
Candidate Member 408-00 57-12 465-12 34-00 4-76 38-76

6.2   The SAIA practice levies for 2018 will be calculated on a sliding scale as per a practice levy calculator, starting at R1, 430-00 (Vat Excl.) per year for a single practitioner. (SAIA issues the relevant tax invoice.)

Subs per Arch Staff Subs per Practice
Category VAT Excl. VAT VAT Incl. VAT Excl. VAT VAT Incl.
1 1,430-00 200-20 1,630-20 1,430-00 200-20 1,630-20
2 1,430-00 200-20 1,630-20 2,860-00 400-40 3,260-40
3 1.430-00 200-20 1,630-20 4,290-00 600-60 4,890-60
4 1,430-00 200-20 1,630-20 5,720-00 800-80 6,520-80
5 1,430-00 200-20 1,630-20 7,150-00 1,001-00 8,151-00
6 1,375-00 192-50 1,567-50 8,250-00 1,155-00 9,405-00
7 1,342-00 187-88 1,529-88 9,394-00 1,315-16 10,709-16
8 1,320-00 184-80 1,504-80 10,560-00 1,478-40 12,038-40
9  1,298-00 181-72 1,479-72 11,682-00 1.635-48 13,317-48
10 1,276-00 178-64 1,454-64 12,760-00 1,786-40 14,546-40
11 1,254-00 175-56 1,429.56 13,794-00 1,931-16 15,725-16
12 1,243-00 174-02 1,417-02 14,916-00 2,088-24 17,004-24
13 1,232-00 172-48 1,404-48 16,016-00 2,242-24 18,258-24
14 1,221-00 170-94 1,391-94 17,094-00 2,393-16 19,487-16
15 1,210-00 169-40 1,379-40 18,150-00 2,541-00 20,691-00
16 1,199-00 167-86 1,366-86 19,184-00 2,685-76 21,869-76
17 1,193-50 167-09 1,360-59 20,289-50 2,840-53 23,130-03
18 1,188-00 166-32 1,354-32 21,384-00 2,993-76 24,377-76
19 1,182-50 165-55 1,348-05 22,467-50 3,145-45 25,612-95
20 1,177-00 164-78 1,341-78 23,540-00 3,295-60 26,835-60
21 1,171-50 164-01 1,335-51 24,601-50 3,444-21 28,045-71
22 1,166-00 163-24 1,329-24 25,652-00 3,591-28 29,243-28
23 1,160-50 162-47 1,322-97 26,691-50 3,736-81 30,428-31
24 1,158-00 162-12 1,320-12 27,792-00 3,890-88 31,682-88
25 1,155-00 161-70 1,316-70 28,875-00 4,042-50 32,917-50
26 1,153-00 161-42 1,314-42 29,978-00 4,196-92 34,174-92
27 1,150-00 161-00 1,311-00 31,050-00 4,347-00 35,397-00
28 1,146-00 160-44 1,306-44 32,088-00 4,492-32 36,580-32
29 1,144-00 160-16 1,304-16 33,176-00 4,644-64 37,820-64
30 1,141-00 159-74 1,300-74 34,230-00 4,792-20 39,022-20
31 1,138-50 159-39 1,297-89 35,293-50 4,941-09 40,234-59
32 1,135-00 158-90 1,293-90 36,320-00 5,084-80 41,404-80
33 1,133-00 158-62 1,291-62 37,389-00 5,234-46 42,623-46
34 1,130-00 158-20 1,288-20 38,420-00 5,378-80 43,798-80
35 1,129-00 158-06 1,287-06 39,515-00 5,532-10 45,047-10
36 1,127-50 157-85 1,285-35 40,590-00 5,682-60 46,272-60
37 1,125-00 157-50 1,282-50 41,625-00 5,827-50 47,452-50
38 1,124-00 157-36 1,281-36 42,712-00 5,979-68 48,691-68
39 1,123-00 157-22 1,280-22 43,797-00 6,131-58 49,928-58
40 1,122-00 157-08 1,279-08 44,880-00 6,283-20 51,163-20
41 1,120-00 156-80 1,276-80 45,920-00 6,428-80 52,348-80
42 1,119-00 156-66 1,275-66 46,998-00 6,579-72 53,577-72
43 1,118-00 156-52 1,274-52 48,074-00 6,730-36 54,804-36
44 1,116-50 156-31 1,272-81 49,126-00 6,877-64 56,003-64
45 1,115-00 156-10 1,271-10 50,175-00 7,024-50 57,199-50
46 1,114-00 155-96 1,269-96 51,244-00 7,174-16 58,418-16
47 1,113-00 155-82 1,268-82 52,311-00 7,323-54 59,634-54
48 1,112-00 155-68 1,267-68 53,376-00 7,472-64 60,848-64
49 1,111-00 155-54 1,266-54 54,439-00 7,621-46 62,060-46
50 1,110-00 155-40 1,265-40 55,500-00 7,770-00 63,270-00
51 1,110-50 155-47 1,265-97 56,635-50 7,928-97 64,564-47
52 1,109-00 155-26 1,264-26 57,668-00 8,073-52 65,741-52
53 1,108-00 155-12 1,263-12 58,724-00 8,221-36 66,945.36
54 1,107-00 154-98 1,261-98 59,778-00 8,368-92 68,146-92
55 1,106-50 154-91 1,261-41 60,857-50 8,520-05 69,377-55
56 1,106-00 154-84 1,260-84 61,936-00 8,671-04 70,607-04
57 1,105-50 154-77 1,260-27 60,013-50 8,821-89 71,835-39
58 1,105-00 154-70 1,259-70 64,090-00 8,972-60 73,062-60
59 1,104-00 154-56 1,258-56 65,136-00 9,119-04 74,255-04
60 1,103-00 154-42 1,257-42 66,180-00 9,265-20 75,445-20
61 1,102-50 154-35 1,256-85 67,252-50 9,415-35 76,667-85
62 1,102-00 154-28 1,256-28 68,324-00 9,565-36 77,889-36
63 1,101-50 154-21 1,255-71 69,394-50 9,715-23 79,109-73
64 1,101-00 154-14 1,255-14 70,464-00 9,864-96 80,328-96
65 1,100-50 154-07 1,254-57 71,532-50 10,014-55 81,547-05
> 65 1,100-00 154-00 1,254-00 72,600-00 10,164-00 82,764-00

7.How should one calculate the SAIA Practice Levy if one operates more than one practice?

  • It is recommended that the principal employer of the practice identifies each architectural staff member in its employ in order to calculate the size of a specific practice.
  • Principals should be included in the calculation of each practice, but it is unlikely that staff will be employed by two practices at the same time.
  • We rely on members to reflect the staff details in their annual declarations.

8.How should one calculate the subs of a practice which is formed during the year?

  • Practices which are formed during the financial year must submit the particulars of the practice within 30 days and the practice will only be responsible for a pro rata portion of the annual subscriptions.

9.If membership is voluntary, why can’t members choose whether to join either as an individual or as a SAIA Practice?

  • Individual membership of a regional institute and subsequently, that of SAIA is voluntary.
  • Status as a SAIA Practice is mandatory when at least one principal is a member of SAIA.
  • There is no provision in the Constitution for independent SAIA Practice Membership.

 

Esther van Tonder
Executive: Finance and Human Resources

PIA President’s Breakfasts, a Winning Formula

President of PIA, a region of SAIA, shares information about his breakfast forums which has become a best practice in SAIA. Gerd Bolt sheds light.

Early on every first Friday of a new month, I host a gathering of members invited to share an early coffee and scrumptious breakfast. If you arrive early at our current venue, your first cuppa can be enjoyed on the veranda overlooking the watery goings-on of a variety of bird life in the Austin Roberts Bird Sanctuary in the Walkerspruit Open Space System, Nieuw Muckleneuk. Having had your Zen moment for the day, a second cup of your favourite beverage can be enjoyed while greeting colleagues and having a chat about this or that.

In having had the privilege of ‘chairing’ a number of PIA Presidents’ Breakfast meetings it has become obvious that not only the format but also the ‘occasion’ (Afr: gedoente) is hugely successful. The breakfast presents an opportunity for our institute members to enjoy a casual moment in a usually hectic work-month. All PIA members are invited and are regularly asked to propose a particular subject for discussion. Bookings are on a first-come-first-served basis; guests are welcome to book and participate. The president acts as chair and after a short welcome, introduces the subject, adding some deliberate cues to stimulate inclusive participation by all. The meeting is not intended as a workshop or lecture but is intentionally aimed at participation by all present. As is to be expected, the discussion sometimes heats up, requiring intervention to ensure free-flow and democratic values. This is where the value of our “talking stick method” becomes apparent. Only with the “talking stick” in your hand are you allowed to voice your opinion; the stick’s distribution around the long table being managed by consensus. Our present “talking stick” is a replica assegai, borrowed from the Blue Crane’s décor and replaced carefully after each meeting.

The subject of discussion is varied and often covers a topic of relevance to recent occurrences. During the first few Breakfast Meetings, it became clear that the BIG ISSUES raised by participants were related to fees, clients and local authorities. The issues largely remain, but with having had an opportunity to vent frustrations, it became apparent that architects have lots of other things to talk about. The field has opened up to new and fresh topics concerning SACAP matters; SAIA in its role as national VA, the influence of recent advances in technology on practicing architecture, the expectations of practicing architects towards recently graduated youngsters, and the architect as ‘potential’ developer.

Measured by the speed of reaching “fully-booked” status the PIA Breakfast has been established as a valued social event where professionals can engage informally. It is also increasing the awareness of participants on a wide variety of topics. For the PIA leadership, it has proven to be a valuable resource in the identification of relevant issues, and an indication of the temperature of practicing professionals’ attitudes to a challenging and changing environment. The value of the breakfast forum event is in the deliberate simplicity of its platform for exchange (ruled only by “the stick”). Plates are limited to approximately 35 early birders. We start at 08h00 and usually wrap up at 09h45.


Yvonne Bruinette receives prize from PIA President, Gerd Bolt