Remodeling, Reviews & Construction : Home improvement

Building in a bush fire zone


In this issue of Hi – School we will outline the requirements of the NSW Rural Fire Service (RFS) for the types of timbers permitted for exposed supports, posts and beams for buildings located on bush fire prone land in NSW, and Bushfire Attack Level (BAL) 40 requirements for Fascia and Bargeboards.

In this issue of Hi – School we will outline the requirements of the NSW Rural Fire Service (RFS) for the types of timbers permitted for exposed supports, posts and beams for buildings located on bush fire prone land in NSW, and Bushfire Attack Level (BAL) 40 requirements for Fascia and Bargeboards.

Timber Supports, Post and Beams

Specifically:
1. timber posts supporting the roof load only and not supporting a deck;
2. exposed timber beams supporting the roof load only;
3. timber posts and exposed beams which are purely decorative and offer no structural support to the dwelling;
4. the use of glue laminated timber members constructed out of a bushfire resisting timber (such as Merbau) for BAL levels requiring bushfire resisting timber posts, joist, bearers, and similar elements.
AS3959 (2009) - Construction of buildings in bush fire prone areas does not specifically address the issue of exposed supports, posts and beams for such applications. As such, there is a need to adopt a practical approach to the matter and ensure that the intent of AS3959 (2009) and the NSW document Planning for Bush Fire Protection 2006 is applied.
Applications #1, #2, and #3
In determining the type of timber appropriate for the building components, the requirements of AS3959 (2009) and Addendum Appendix 3 of Planning for Bush Fire Protection 2006 for exposed supporting timber posts and beams for other components of a building have been considered. Therefore, the NSW RFS provides the following advice in regards to the applications described in #1, #2, and #3 above.;
BAL 12.5, BAL19, and BAL 29
a) Non combustible,
b) bush fire resisting timber,
c) combination of a) and b)
BAL 40 –
a) Non combustible,
b) comply with 1530.8.1,
c) combination of a) and b)
BAL FZ - Performance based - Generally, non combustible construction materials are permitted. Materials that comply with 1530.8.2 and do not support flaming are also considered appropriate.
Please note that the above requirements are deemed necessary regardless of whether the timber supports / posts / beams are load bearing or non-load bearing. These requirements attempt to mitigate the ignition of timbers and the spread of fire to other building components (e.g. windows, eaves, roof cavity etc) as well as addressing any issues associated with structural integrity of the building when exposed to bush fire.
In the opinion of the NSW RFS, the above measures will ensure that the requirements for exposed timbers as per AS3959 (2009) and Planning for Bush Fire Protection 2006 are applied consistently and that building occupants are provided with what is currently considered best practice bush fire protection.
Glue Laminated Members
The NSW RFS is unaware of any research on the bush fire performance of glue laminate timber members that consist of bush fire resisting timber. It is the opinion of the NSW RFS that this type of construction material is not currently recognised as a bush fire resisting timber due to the composite nature of the materials and possible break-down of the glue.
A performance based solution should therefore be undertaken in such situations. The performance based solution will need to demonstrate that the glue laminate timber can perform as well as one of the recognised bush fire resisting timber species. It is recommended that testing in accordance with Appendix F of AS3959 (2009) form part of any performance based solution.
BAL-40 Fascia and Bargeboards
The RFS has become aware that limited, if any, testing of products for suitability for fascia has occurred.
Following a review of AS3959-2009 and the provisions for BAL-40, it is the opinion of the RFS that, as an interim measure (until further testing in accordance with 1530.8.1 occurs), the requirements for external walls (section 8.4 of AS3959-2009) are considered appropriate for fascia and bargeboards.
For further information regarding bush fire protection measures, please contact Development Assessment and Planning on (02) 8741 5175.

Role of the architects sydney and their performance


An architect can be found in some constructional area or broadly in all construction industries where they will be performing, designing of all new buildings making extension or performing alterations to all the buildings which are existing.br

An architect can be found in some constructional area or broadly in all construction industries where they will be performing, designing of all new buildings making extension or performing alterations to all the buildings which are existing. Even the architects Sydney or around will be giving advice over the conservation as well as restoration of the age old properties.brbrOn individual building, an architect can be working or they are even allowed to make operations on large schemes of development and can make the surroundings all the more beautiful to live a peaceful life. Closely they work hand in hands with their users and clients and ensure that all the designs absolutely matches what they requires and are very much functional, economical as well as safe to continue. Usually they control some projects from its very beginning to completion and henceforth work with many constructional professionals who even include the engineers, surveyors, and craft a drawing with all specifications for the construction team to work with.brbrThe architect role can be magnified and they can range from working as a freelancer to some project work which is on small-scale for employing with multinational organizations which are performed with outstanding landmarks.brbrTypically what is the working activity of the architects Sydney?brbrAn architect will be involved in performing from the very early stage of some building constructions which can make the initiation of making an idea along with the client with establishing the budgets, making an assessment of all the needs and necessities of the same along with its users and its entire impact within the surrounding environment.brbrArchitects Sydney will be helping you in the selection of the contractors as well as working with them on the site making sure that the entire performance is carried out with the correct specification standards and above everything that the building is all functional, sustainable and pleasing aesthetically. Also, they are aware of the financial and commercial considerations.brbrTypically the responsibilities can be varied which even includes:brbr" Making a detailed discussion about the requirements, objectives as well as the project's budget.br" Doing a consultation with the professional present there discussing about the design.br" Presenting and preparing a feasible report with proposals of design to the customer.br" Providing an advice to his client on how the project is practical.br" Making use of the IT in making design as well as management of the project, especially making use of any design software which best be identified as 'computer-aided'.br" Remaining within the deadlines and financial budget.br" Making a detailed working along with specifications as well as drawings.br" Making a specification of the quality and nature of the required materials.br" Enhancing a detailed negotiation with the professionals and contractors.br" Resolving issues and problems which can be arising while in some constructions.br" Making sure that the impact over the environment will ably get managed.br" Regular visits to the site about checking the progress and making it sure that the whole project is running at the fixed time.brbrArticle Resources : this site