Tarquin, 10 Hilltop Crescent, Fairlight. January Celebrating 10 years. SE elevation and low rises before works began

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1 Celebrating 10 years January 2016 Dear clients and friends: Welcome to our latest newsletter, providing information on some of our more interesting projects of Having celebrated 10 years in business, we then succeeded in delivering more projects and revenue last year than ever before. So we take this occasion to thank you, our clients, for providing these opportunities. This edition features the followup to some of the large projects identified in our previous newsletter, and some staffing news. Tarquin, high on top of the hill MCentral, beautifully refurbished Etage facelift and upgrade New project manager joins the team. As always, we hope you find the time to read this news update. Please read on... SE elevation and low rises before works began Tarquin, 10 Hilltop Crescent, Fairlight We have been working on this building for many years, firstly undertaking small slab repairs, and progressing to much larger concrete element repairs to the east and west elevations. Also, as apartments became free, magnesite repairs were undertaken internally. In we tendered and won a large facade contract to the tower and low-rise buildings. During the course of these works, we highlighted areas of concern for the owners and BAAM Consulting, dealing specifically with potential Tarquin s CD block before works began (left) and completed (right) First project planning and programming meeting, Jan 2014 large scale concrete deterioration to upturn beams and planter boxes, as well as corrosion to other facade elements. Once this contract was completed, the owners went into a planning phase, again engaging BAAM and BKA Architecture to design out the potential future corrosion issues, and including new balcony enclosures and balustrade systems. Another objective was to greatly improve the overall aesthetics of the building. After we were awarded the $4m contract, our initial planning with the owners and consultants saw the first of three stages (The Low Rise 4

2 Buildings) begin in April 2014 with completion scheduled for October. At the same time, we planned to commence stage two, the north elevation of the Tower Building, in July 2014, with completion by the December 2014 break. The final stage three works to the south elevation was brought forward to commence in January 2015 with completion by October The main work items were... Remove all existing balustrades and planter boxes Cut down the existing reinforced concrete balustrade upturns and repair as required Remove balcony enclosures and repair/make good as required Construct new drainage areas over old planters including stainless grates Membrane and tile balcony areas as required Undertake minor works, eg, concrete repairs, wall ties, repointing and re-sealing brickwork Make good render works and paint Install new balcony enclosures Install new stainless steel and glass balustrades. Due to the excellent site management planning and control measures put in place, as well as the support of our specialist subcontractors, the final stage three works to the south elevation was completed in July 2015, well ahead of the initial program. South elevation before Close-up of new balcony enclosure North elevation before (top), under way and completed (bottom) South elevation under way South elevation completed Close-up of new balustrade This project benefited from an excellent building project committee, who ensured the owners and residents were constantly informed of the works program (via a newsletter, briefing meetings, etc), and through the very regular site meetings with BAAM, BKA Architects and our site team. In keeping on top of all project issues, decisions were made in a timely manner, enabling the project to continue at pace. The building now looks modern and contemporary and well protected into the future..

3 Before: MC1 Harris St (above) & Allen St (below) Before: MC2 Fig St (above) & Harris St (below) MCentral 1 & 2, Harris St, Sydney This historic Victorian-era wool store was converted into two separate strata buildings some nine years ago. Over time, elements of the building that were not attended to by the developers had deteriorated. There were also general maintenance needs as well as safety concerns for pedestrians using the footpaths below. JTBD was requested to undertake a detailed survey and investigation of the building, and then take the project to tender stage with Crown Project Services (acting as the project managers) and Izzat Consulting Engineers. Our company succeeded in winning the $5m (approx.) contract and commenced Stage 1 works to MC2 in August Completion of MC2 was planned for December of 2015 with MC1 to start immediately after this with a completion date of late As with many old remedial building contracts, some items of work were minimised or deleted following more extensive investigation. However, additional works also emerged. These had the combined impact of extending the program for MC2 and thereby MC1. Currently we are 99 percent completed on MC2 and 80 percent on MC1. Final project completion is scheduled for February Broadly, MC2 involved... Install new metal weatherings to window sills Deconstruct brickwork and repair as required Install new metal cappings to the parapet brickwork Repair sandstone and repoint Replace rainwater goods Remove and replace drummy, Fig Street completed 4

4 MC2 Harris Street under way Lead paint being removed MC2 Harris St completed Peel Away system partly removed cracked render Undertake repairs to the precast ornamental panels at parapet level. Carry out repairs to all window sills, which included removal of rusting strengthening straps and then replacing the brick sill and render prior to fitting new colour bond cappings Breakout corroding lintels and repour in new high performance fluid micro-concrete, including new I-beams where existing are corroding Remove lead paint from all timber Steel lintel & flat bar corroding windows, walls and previously painted surfaces Undertake required repairs to the timber windows, including the removal of all window putty and replacing it with a silicone sealant Prepare and paint the timber windows, brick walls and other previously pained elements Ready for micro-concrete repair Lintel after concrete & render removed (above) & (below) nearing completion 4 MC1 sills and ledges ready for capping (above) and weather protected (right)

5 Undertake structural support works to the high parapet, including installation of a waterproof membrane to the inside courtyards and facade walls followed by making good to gardens. And the work on MC1 involved... Remove vegetation growth on the building facade Repair brick arches, where required, due to brick growth above the arches, including the removal of corroding flat bars used for strengthening the arches. These were replaced by installation of Helibars. Install new metal weatherings to window sills and brick ledges Deconstruct brickwork and repair as required Install new metal cappings to the parapet brickwork Replace and increase rainwater goods Re-point the brickwork to over 60 percent of the facade Carry out repairs to window sills, including replacing timber sills and removing old putty and replacing with new silicone sealant. Remove lead paint from all timber windows, and previously painted surfaces Undertake required repairs to the timber windows Prepare and paint the timber windows, and other previously painted elements. In brief, some of the major challenges in delivering the project have been: U n d e r t a k i n g the removal of a substantial Repointing under way MC1 near completion number of concrete lintels in a fully occupied building. Removing the lead based paint and capturing and disposing of the Peel Away system and the wash-down water Grinding out old mortar and repointing to a large area of the building and controlling the dust from the works Working in a congested environment with Completed detailing works MC1 multiple trades and a large work force on site. However, as we near completion, beautifully restored and protected, back to its former glory. the building is now looking.. MC2 brick sill repair under way (above) and (below) with corroding metal straps Brick sills repaired (above) and (below) weather protected Corroding flat bar above brick arch (above) and (below) repair done

6 Etage, 10 Pyrmont Bridge Rd, Camperdown The complex is some 13 years old: a multi-storey residential building with over a hundred apartments. It is a reinforced concrete-framed construction with a combination of infill-face cavity brick facades, weatherboard cladding and powdercoated aluminium-framed windows and doors. The residential units have balconies bounded by reinforced concrete balustrade upstands with powder-coated aluminium-framed handrails with infill glazing. The balconies feature suspended timber decking, and forty-seven of the balconies had four-panel powder-coated aluminium-framed sliding louvres with western red cedar louvre blades. RHM Consultants investigated the building and tendered the $2 South Pods 1 & 2 before South Pod 3 during South elevation completed North Pods 1 & 2 before North elevation nearly completed (left) and (right) completed million (approx.) project, with the following being a broad project outline of the works: Repair concrete Replace old timber louvres with new powder coated aluminium louvres Waterproof concrete awnings New project manager We are very pleased to have recruited Liam O Hehir, who has joined our operations team as a project manager. Liam has been in the remedial industry for many years, working with a number of large consultancy companies. He has significant experience in building diagnostics and remedial engineering and in particular in the condition appraisal of building facades and structures and their rehabilitation. Liam brings valuable experience to our management team. Liam has since been elected to the board of directors of ACRA. Contact Liam on or liam@prestech.com.au North Pod 3 during Replace high level soffit linings with new sheeting and Rondo fixing system Paint the full facade elements, including the steel columns, timber panelling and new soffit linings. Reaching the various building elements some of which were set back from the main pod facades as well as the high level awning soffits, involved various forms of access equipment such as designed scaffolding components in conjunction with the use of swing stages and boom lifts. The building was fully occupied during the works, so access to residents through the north and south elevation entrances had to be maintained and protected. The completed project is a fantastic result for the owners, with fully operable louvres now in place and the building protected into the future. As always should you want further information on a highlighted project, or have your own project to discuss, please contact John O Connell, m: , e: john@prestech.com.au. Until our next update..