Bosazza Roofing was contracted to install the roofs on the main house and Summer kitchen of this high profile project in the new Olivewood Private Estate & Golf Course, Chintsa; scope of works included installing the roofs, ceilings (including three exposed truss areas), eave ceilings, veranda’s, custom timber and steel balustrades and two pergola’s in the grounds of the property. The project duration was approximately 12 months and was completed in March 2018.
The Brief
To erect and install 1079m² of roofing on the main house and Summer Kitchen of this residential property including three feature areas with exposed trusses; installation of internal ceilings; veranda and eave ceilings; custom steel and timber balustrades and posts; construction of two pergolas.
The brief required marrying the three contrasting aesthetic elements of the home design – mortar, timber and steel – with a strong focus on elegancy, symmetry and fine quality finishes.
The drone image above gives a clear impression of the site with the main roof, veranda and entrance roofs as well as the Summer kitchen (the smaller building in the bottom right corner of this image).
Roofing of the Summer Kitchen
Roofing of the Summer Kitchen was the opening of the project; a 145m² semi-outdoor kitchen and entertainment space which provides a shelter and shade area, kitted out with modern cooking facilities including a braai and pizza oven.
Construction began off-site manufacturing custom stainless-steel brackets, timber posts, rafters and laminated beams.
The Summer Kitchen roof is constructed entirely of custom-made loose rafters. Special attention had to be paid to the behavior of the raw material during the construction process using temporary bracing to prevent warping of the wood due to exposure to the coastal environment.
Stainless-steel brackets were used in all exposed rafter areas throughout the roofs – brackets were installed at visible joins between the load-bearing timber lintels, ridge boards and main rafters as well as at the apex of the roofs.
Klip-Lok 406 concealed fix roof sheeting was chosen for the roof covering; installation involved fixing specified clips to purlins with stainless steel screws and applying the roof sheeting in sections, clipping each of the sheets together according to Klip-Lok specifications.
A challenge with the use of this product is that Klip-Lok in general is designed for use on large-scale roofs with simple designs; in contrast the roofs on this project were complex with lots of valleys and hips. To overcome this challenge, we worked very carefully with the Klip-Lok suppliers who inspected the roof installation to ensure that our methods were appropriate.
Main House Roof
Whilst the Summer Kitchen was being finished pre-fabricated roof trusses were being erected on the main house. Starting at the South elevation which would enclose living and dining areas on the ground floor and resident’s private suite on the first; working towards the centre of the building with its double story gallery and entrance; finishing with the north elevation ensconcing a wine cellar and guest suites. On the sea-facing side the roof is finished with low pitched verandas positioned under the lip of the main roof.
The Entrance & Gallery
The most breath-taking area of the house is the entrance and gallery where a double story covered entrance leads to the spacious reception room with spectacular high ceilings, exposed trusses, and chandeliers leads the eye to a wall of windows with unbeatable views of the Indian Ocean.
Features of the covered entrance include custom timber lintels and posts to hold the loose rafters and trusses. Nutec tongue and groove ceiling board (in a Scandinavian finish) was fixed to the outside of the rafters to form the ceiling as with all external ceilings.
Ceilings
Large expanses of open ceiling area were required to be totally smooth, with no joins visible between the sheets. The client specifically requested this finish on the eave ceilings and did not want the use of joining strips. The ceiling boards were fixed with concealed copper screws, where they met we took the time to hide the join – making it look like a continuation of the natural tongue and groove pattern. This detail required meticulous finishing and painting of the areas. Quality workmanship and attention to detail were vital to create a high-end product that the client was happy with.
Ceiling bulkheads with light troughs were fitted in various rooms on the ground floor to conceal the source of light which shines up onto the wall and ceiling providing a soft glow lighting effect.
Verandas
All first-floor bedrooms open onto covered verandas. The verandas combine timber, steel and mortar; 120x120mm hardwood timber roof posts hold laminated beam lintels which are fixed at all points with stainless steel shoes and brackets. Construction of the roofs was like that of the Summer Kitchen; erecting loose rafters, installing ceiling board, insulation & roof sheeting.
Pergolas
Two pergolas were constructed in the grounds of the house – one leading from the kitchen to the Summer Kitchen, the other on the North side of the house. The pergolas were constructed with custom timber posts made with an 80x80mm pine core, clad in 32mm grappa panels on all four sides. The posts were fixed to concrete foundations via chemical anchored stainless steel rods and stainless-steel base plates bolted to the concrete.
Custom timber and steel balustrades were also installed around the ground floor deck and pool area, the verandas and small Juliette balconies at the front of the house.
Award Winning Project
This project was entered into the annual ITC-SA Timber Engineered Awards 2018 and has been shortlisted for an award – we will be attending the awards presentation in Cape Town on Friday 27th July. Other key personnel on the project will also be recognized at the presentation including:
Lara Wilson McDade (LYT Architects)
Richard Bailey (Engineer)
Inyathi Truss (Fabricator)
UPDATE: 01-08-2018 Bosazza Roofing was awarded the Gold Award for Roofing at the 2018 Timber Engineered Product Awards for this project – click here to read our article about the awards presentation >
Media
The project was also featured in national roofing magazine SA Roofing – Issue #100 which you can view on line here.