72 timber & joinery; water & damp proofing Open panel


Timber frame open panel systems are structural engineered panels that form the inside load- bearing leaf of the external wall, comprising studs, rails, sheathing on one face, and a breather membrane. The open panel system is made from treated softwood timber framing, over which a structural sheet material of either Ply or OSB board is fixed.


Closed panel


Closed panel systems are made from studs, rails and insulation, with sheathings and/or linings on the faces of the panel. A vapour barrier is also provided on the warm side of the insulation and a breather membrane on the outer face of the panel. If desired, closed panels may also include fitted windows and internal service zone battens for ease of installation and construction. Timber frame is utilised by every sector of the


construction industry and is very popular with self-builders – over 75 per cent of self-builders use it as their primary build method – low to medium rise residential developers and student accommodation providers. It currently accounts for around a quarter of new homes in the UK. As with all forms of structural timber, timber frame has superb environment credentials, as well as being quick and easy to construct.


Restoring the CO2    Cross Laminated Timber (CLT)


CLT is a structural two-way spanning timber panel that can be used to form walls, roof and floor panels as well as shear walls. It is produced by stacking a number of layers of timber, known as lamellas, at 90º to the layer below and subsequently gluing them to create panels of up to 24 metres in length and 2,950 mm in width, which can encompass between three and seven layers. CLT is now extensively used across the


commercial, leisure and education construction sectors and the benefits have been widely acknowledged, but the technology has not been prolifically used in residential developments in the UK – until now. CLT structures effortlessly combine aesthetics, strength, thermal, acoustic and environmental benefits to create the optimum look, feel and function. It is in medium rise residential developments


where the advantages of CLT as a core structural solution truly come into play. CLT panels are available in a variety of sizes and are excellent for building entire structures, including walls and floors, very quickly. The key is in the strength to weight ratio of the engineered timber – it has proven multi-storey capability, with residential buildings up to 10 storeys already constructed in the UK and a structural capacity beyond this. The height can be easily extended by using cross


While wood is a renewable and versatile resource which, when used sensibly, is proven to reduce carbon in the atmosphere, the theory of reforestation restoring the CO2


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benefits are equal to those gained from more mature trees; something which takes several decades to achieve. Norbord believes that the way it and similar companies use wood is both sustainable and a way of keeping carbon locked up for longer.


is a fallacy, asserts Norbord, a leading manufacturer of engineered wood-based panels. Replanting trees only becomes effective when the carbon sequestration 


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Spitfire launches exclusive timber fusion 


cedar, the door’s elegant finish is complimented by modern stainless steel hardware and organic glass inlay options, as well as state-of-the-art security features including biometric and keyless entry.


Luxury residential entrance door supplier, Spitfire Doors, has launched a new timber fusion collection in response to growing market demand in the UK and Ireland for a high end alternative. The S-400 range will sit alongside Spitfire’s S-500 exclusive aluminium range to provide luxury quality, high specification entrance doors. Made from natural red 


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01625 412570 www.spitfiredoors.co.uk respond online at www.hbdonline.co.uk


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balance instantaneously 


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laminated timber as part of a hybrid structure, using for example, a glulam frame. The benefits during construction are numer-


ous – from reduced loading on foundations and infrastructure services to an impressive thermal, acoustic and airtightness performance over more traditional materials, but most importantly, a CLT construction solution provides cost and programme certainty. The lightweight nature of the material means foundations can be reduced delivering further costs savings; it is clean to use, with little onsite waste, and it is made from readily available, renewable softwood.


Structural Timber Association


According to the findings of a recent survey by the Structural Timber Association, 74 per cent of the UK’s contractors, developers, architects and registered providers revealed they plan to increase specifications of structural timber. As a robust yet lightweight solution, the use of structural timber reduces the loading on foundations and delivers multiple benefits including speed of build, enhanced quality, together with improved thermal, acoustic and performance benefits.


Nick Milestone is a board member of the Structural Timber Association and managing director of B & K Structures


Enq. 200 Catalogue highlights basement drainage


Transforming damp and dingy basements into comfortable living spaces is becoming more popular – thanks in no small part to the extensive range of products offered by Delta Membrane Systems. Over the years Delta has earned a reputation for being the ‘one stop shop’ for all things needed in basement refurbishment and new-build. This includes a wide range of sumps,


pumps and control technology – all of which is featured in the new brochure. This 36-page publication also features drainage channels and fittings, as well as giving a standard pump overview.


Enq. 201 01992 523523 www.deltamembranes.com Enq. 202 Felmoor Park receives premium protection


The Scandinavian log cabins and lodges at the picturesque Felmoor Park in Northumberland have been given a striking new finish thanks to Remmers wood coatings. Remmers HK Stain was selected to provide not only effective weather protection but protection against blue stain, rot and insects. HK Stain is a “2 in 1” product which eliminates the


need for an additional wood preservative primer and is perfect for both soft and hardwoods. The product penetrates into the wood whilst leaving it fully breathable and as it doesn’t flake or peel.


01293 594037 www.remmers.co.uk Enq. 204


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