Timber cladding is not new, it has a long history of use. Timber cladding must be designed so that it can dry out after it gets wet a decorative finish will affect the cladding s appearance, but not necessarily its service life. Timber cladding excellent value timber cladding to buy. Uncoated external timber cladding will always weather and this should be expected. Dura cladding resist dura cladding resist is a low maintenance composite timber exterior cladding, fire rated to class b in accordance with european and british fire safety standards bs en 501.
The following sections will step through the ncc requirements for wall cladding and present compliant applications for timber cladding in closer detail. Sculptform cladding is a tongue and groove joined cladding with hidden screw fixings. Membranes use membranes on all rainscreen cladding. Minimum 70mm timber studs at maximum 600mm centres wall insulation. Vapour permeable sarking should always be used and installed according to the manufacturers recommendations. About timber cladding in general the term cladding refers to dressed or sawn boards that form part of the external wall covering, whose function includes keeping weather out of a structure. This section contains systems, installation instructions and construction details for. Cladding installation direct fixing to exterior masonryconcrete. There are two main things to remember about timber cladding. If the external timber cladding is to be left uncoated, it will weather naturally and turn silvergrey over time, due to exposure to moisture and sunlight. Brooks bros timber cladding is supplied to british product standards eg bs en 942, bs1186 3. Free standing timber screens create the look of bespoke timber joinery with our customisable system that uses minimalist fixings to create free standing timber screens. Wood cladding is generally easy to fix, but do consider final detailing, especially on corner joints and at ground level on external applications. Complete an area of timber cladding, including entire buildup as a benchmark for quality.
Species cypress hardwood grades grade 1 grade 2 select grade medium feature grade high feature grade table 1. Do make sure that you add about 510% to whatever quote is provided. Design pine cladding installation about timber cladding in general the term cladding refers to dressed or sawn boards that form part of the external wall covering, whose function includes keeping weather out of a structure. Brooks bros timber cladding is available in standard profile patterns and dimensions, is supplied unfinished for natural weathering or prefinished with a coating or finish to various specifications including nbs m60. Australian owned and manufactured, weathertexs external timber cladding is the ideal solution for any builder, architect or designer. Vertical cladding must be supported with 45 x 45mm treated. We have an awesome guide to timber cladding, definitely a. Weathertex is a strong and stable external cladding product with low environmental impact and crisp modern lines.
Jul 26, 2019 softwood continues to be the most popular external cladding for most buildings. Timber cladding installation instructions every project needs to be considered individually. Timber decking and cladding association 5 july 2017 page 1 of 4 key fact timber is approved as a suitable material for external cladding under uk building regulations and where these regulations call for enhanced fire performance, tried and tested flame retardant treatment processes are available to provide it. Timber cladding is significantly cheaper with the average cost coming in at around. Imported western red cedar very good for cladding, light, pliable. Vertical cladding when using timber for vertical cladding applications, place the heartwood on the weather side. The various types and species of timber cladding can give very different looks, from tongue and groove cladding giving clean, straight lines, or feather edge cladding giving a traditional, yet uniform style, to waney edge cladding giving a classic, rustic look. May 02, 2019 external timber cladding trada pdf may 2, 2019 admin softwood continues to be the most popular external cladding for most buildings. Discolouration during the weathering process, discolouration or differential weathering. Timber cladding should be suppliedused with a moisture content of 16% 4% unless using.
As a result of the growing popularity of timber cladding, it is important that builders have the necessary knowledge of the properties of some of the. Timber cladding can provide a cost effective and attractive external envelope to a building but the design and fixing detail needs to accommodate the fact that. Dec 19, 2020 external timber cladding written by hislop, patrick, stock code. External cladding solid timber profiles whole of house. It can be used as a weatherproof external facade cladding, a lining to exterior soffits or as a lining to interior walls and ceilings. The term cladding refers to dressed or sawn boards that form part of the external wall covering. Ensure there is an air space between the timber cladding and. Guidance to amended building regulations the outcome of the uk governments assessment of the use of different cladding materials in the wake of the grenfell tragedy confirmed that timber, where necessary enhanced with flame retardant depending. We stock a wide range of external cladding available for delivery throughout the uk to the trade and public.
External walls should either meet the guidance given in paragraphs 12. Timber cladding is popular with building owners and architects seeking to maximise timber s unique visual appeal and environmental credentials. The standards are being produced because timber has become a widely used external cladding material in the uk and this has highlighted that existing standards on the topic are inadequate. This enlarged and illustrated book is the definitive guide to the specification, design and installation of timber cladding in the uk.
The traditional cladding range is a selection of the most popular timber species currently used today in the uk market for exterior cladding. When using the cladding for external applications durability of the timber must be considered. Moisture conditions in external timber cladding edinburgh napier. Insulation sarking winter total wall rvalue summer total wall rvalue. Although american white oak is technically suitable for use as external cladding, most of the supplies available in the uk and ireland are dried to levels suitable. It is produced in a number of decorative profiles such as rusticated, shiplap, log cabin and splayed. All products offered above are available from timber focus and, for detailed timber cladding fitting instructions, copies of bm tradas external timber cladding installation manual are available to purchase from timber focus. Design and performance exposure trials on timber cladding are valuable sources. Having selected the timber species for use as an exterior cladding, it is necessary to ensure the right quality of material. Tyvek by dupont, powerlon by itp or similar fix carefully and neatly to provide a complete barrier to water, snow and wind blown dust.
Hardwood timber cladding provides an envelope that protects a building. It has a good and flexible selection of design options. The natural durability rating of a timber species is a rating of the timber s natural resistance to attack by wood destroying fungi and wood destroying insects. The cladding can be coated or left to weather naturally. Ideal for domestic properties, commercial buildings, offices and mixed use developments under 18 metres in height. Detail design timber cladding basic principles in principle, any timber cladding should be designed as a rainscreen. Through specification, planning, design and finishing processes, timber cladding not only creates a building of superior strength, acoustic and thermal performance but also creates a place of beauty, style and natural appeal. Due to the wet and windy climate that we experience in the uk, building. These support the cladding and may be vertical or horizontal, depending on the orientation of the cladding. Also consider the direction of growth rings and any fluff that may have developed on the surface by placing the boards with the growth rings and fluff pointing down.
Assuming that the cladding will always be subject to some penetration of moisture, a separate protective membrane will be necessary behind the cladding largely protected from wind, rain and daylight by the cladding itself. When tongue and groove profiled boards are stacked on site, take care that they are stacked. Today there are a number of accepted methods for cladding exterior building walls with natural stone. International timber external cladding timber cladding is becoming increasingly more popular as a facing material, replacing brick or rendered finishes. Although we can offer suggestions and guidelines here, for optimal results, it would be recommended that an expert should install the cladding to ensure it fits together perfectly. Oct 11, 2019 external timber cladding trada pdf october 11, 2019 softwood continues to be the most popular external cladding for most buildings. Timber cladding is an extremely popular way of changing the look of a building and protecting it from the elements. Ideal uses the offer rib cladding diamond cladding channel clad. It offers design freedom, ease of handling, a range of products and the natural beauty of australian timber species. Timber weatherboards, wall panels, external cladding. This complete timber cladding system helps you create beautiful longlasting linear textures on both the interior and exterior of your project. Timber weatherboards, wall panels, external cladding systems.
External timber cladding the definitive guide to the specification, design and installation of timber cladding in the uk. Apr 19, 2020 softwood continues to be the most popular external cladding for most buildings. Cemintel cladding sheet 1 layer cemintel external cladding sheet to the outside of wall framing. Knots, grain exist as part of the natural growth of a tree, and feature in the sertiwood viking, thermowood.
The study analyzes the traditional external timber cladding in the mediterranean climate, in order to better break down their behavior through time of some of them. Timber cladding information about timber cladding, what. External cladding solid timber profiles inspiring external cladding profiles western red cedar. You dont apply cladding directly to any solid wall. Dura cladding resist is a low maintenance composite timber exterior cladding, fire rated to class b in accordance with european and british fire safety standards bs en 501. External timber cladding trada timber research and.
Trada produces a comprehensive document on external cladding which provides excellent detail on design and fixing recommendations. External timber cladding installation instructions. Nafi timber manual datafile fp1 timber external cladding 4 nafi timber manual datafile fp1 timber external cladding 5 well chosen and properly installed cladding and it should never be regarded as the principal means of weatherproofing. Trada technologys external timber cladding 1 explains how cladding should be specified, fixed and finished. There are a range of appearance grading rules used for cladding, which deal with the number and size of knots present.
Movement can be further reduced by limiting the width of the boards, and if p ossible, the heartwood side of the board should be used as the external face of the cladding to make sure joints. The names of the various profiles often differ from. The term adaptable building is used to describe a structure that has the. External wood cladding pdf restoring discoloured uncoated timber cladding pdf timber cladding fact sheet pdf timber cladding for building refurbishment pdf solid grey jpg translucent grey jpg sikkens colours pdf solid colours pdf solid colours data sheet pdf. Find out more about our natural exterior cladding products and materials from our downloads library of pdfs, data sheets. Getting the detailing and fixing right are as important to the life of the cladding as choice of species. Timber cladding is increasingly popular with building owners and architects seeking to exploit timber s unique visual appeal and environmental credentials. Camila burgos leiva 1, jaume avellaneda diazgrande 2, vladimir rodriguez trujillo3. Boral australian timber cladding meets ncc deemedtosatisfy requirements for use as cladding or interior linings in many locations within multiresidential, commercial and public buildings. Mar 26, 2020 softwood continues to be the most popular external cladding for most buildings. Moisture will be trapped at the back of the timbers and they will rot.
Before installation, allow the cladding to acclimatise away from direct sunlight, moisture or rain. Species all the species are durable and suitable for external use for a minimum 25 years. Timber cladding installation guide norclad how to install. It can be used vertically, horizontally or diagonally and has been finely detailed to accommodate timber movement. The natural durability rating applies only to the heartwood of a timber species and the silvertop has a rating of class 2 with approx above ground durability of 25 year plus. The red document status indicator indicates that the document is an old version the document has likely been withdrawn by the publisher, also the meta data presented here may be out of date as it is no longer being maintained by the editorial teams at nbs. Table 1 boral timber cladding and exterior lining species that can be used in various. Only use timber species and fixing types suitable for exterior use. Development of performancebased standards for external. They can be used for both new build and refurbishing the exterior of an existing building. Jul 05, 2017 timber is approved as a suitable material for external cladding under uk building regulations and where these regulations call for enhanced fire performance, tried and tested flame retardant treatment processes are available to provide it. Sustainable timber timber is the most sustainable building product available. Western timber research and development association.
While the external face of the cladding should be able to deflect most winddriven rain, it must always be assumed that some water will. Handle prefinished timber carefully to avoid scratching the face. Advantages of timber cladding design principles cladding to improve weather resistance or appearance cladding to enclose external insulation timber cladding details key points as a lightweight system, timber over cladding imposes little increased loading. With timber facades being seen as a more sustainable option than their traditional brick counterparts, more and more housebuilders are opting to choose external timber cladding for their home. Timber can readily be placed over these walls to add a feature and reduce the heat buildup in concrete walls. The natural appeal, versatility and strength of timber makes it the superior choice for external cladding. Hardwood timber cladding is an increasingly popular choice for finishing the outside of commercial and domestic buildings. As1810 timber seasoned cypress milled products, standards australia. Insect mesh install insect mesh around all open cavities. External cladding timber cladding is becoming increasingly more popular as a facing material, replacing brick or rendered finishes. The installation process for timber cladding should be carried out by a professional. Timber cladding support battens all battens should be treated to uc3, with all cut ends treated on site. When choosing any form of board cladding, consider. Normal, bbaapproved breathable membranes should be used on closed rainscreen cladding.
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