Non loadbearing wall junctions 1.5. These are endorsed by CladMark +. At this point consideration should be given to how the cladding will look once fitted. Norwegian and Canadian recommendations suggest that the Timber cladding window seal flashing requires water leakage to return to control and at least 20 mm vertical surfaces. OIL FINISH – If you have made the decision to oil your cladding now is the time. Timber Frame Wall – To clad a timber frame wall, you need to attach the battens to studs in the wall. Masonry Cladding 1.7. Unfortunately, there seems to be a conflict in the Scottish Building Regulations between the need to maintain unrestricted drainage above a window or door, and the requirement (in part D of the regulation) to provide a barrier to cavity around an opening. What are the Types of Structural Steel Framing Systems. Both countries suggest waterproof tide at the corner.Friction can be made from galvanized or stainless steel, copper, lead, aluminum or plastic and, depending on the material, the corner joint can be waterproofed by welding, … Small headed pins and brads are not suitable as the gauge of the fixing is not strong enough to withstand movement. Required fields are marked *. There are many examples of insect mesh diagrams available on the internet. Internal wall to internal wall junctions 3. TimberClad is a registered Trademark, No part of this website or it's images may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the property owners Carmen Trentham and Ian Pope. Like window Timber cladding, the details of windows and doors against wind-driven rain should always be included in a periodic manner so that the primary rain screen is separated from the second air seal with a dull and ventilated cavity. Consequently, although coating sets can be well drained and ventilated, it is possible that there is a risk that the woods will be moist for long periods of time. Reduce the water in this hook. Silicon gluing does not provide long-term protection. When the requirement is relaxed, the details of the Timber cladding  windows that are attached are consistent with the details given here, but these details are not definitive and its use should be approved with the local control officers of the building. (Image credit: James Morris) It is crucial to get the corner details and those around windows and doors right when it comes to timber cladding, both for aesthetic purposes and to ensure moisture is not allowed to seep behind the boards. This will reduce capillary action. Silicon gluing does not provide long-term protection. Start at the bottom and fix the first board, check the level and take a moment to stand back and check that it looks acceptable to the eye with the whole of the building. A. As with the door/window trim remember to leave a 6 mm gap and seal the length of batten at the back of the cladding with black sealant to obscure the batten and seal the joint. Butt joints should be avoided as the cladding will move during the seasons, not only will it encourage capillary action a joint that is flush today will ‘cup’ in 6 months. Using three different width of cladding on the vertical cladding also adds interest. The details on this timber clad house by Adam Knibb Architects are spot on to ensure a crisp, contemporary finish. This will reduce capillary action. Our experience is to bend the mesh in half, fit it between the battens and force the corners in tight with an off cut of batten. Measure down multiples of board cover to find a starting point. AROUND A CORNER – Cut board to required width and return around the corner. Fit Door/Window Trim– The door/window trim can fit flush or protrude from the face of the finished cladding. TRADA recommend a minimum of an 8-10 mm clearance gap on end grain to reduce capillary action, this would be good practise on an unfinished board but for many this size gap would be unacceptable. This will enable water to drain from the top of the cladding and create a drip at the lowest side on the front. Small headed pins and brads are not suitable as the gauge of the fixing is not strong enough to withstand movement. Where possible try to start the cladding a minimum of 250 mm from the finished ground level. Re-entrant corner 1.3. Internal Walls 2.1. Roofs 3.1. Some species (eg oak) are especially vulnerable because wood is prone to staining if it is wet for prolonged periods. With the insect mesh slightly proud of the face of the batten this can be compressed easily once the cladding is fitted. Seal junctions between battens and trims with a good quality non silicone black sealant, once again this reduces the likelihood of capillary action and blacks out where a strong contrast in batten colour is present. Details on Plan 1. There are also risks of corrosion with ferrous and aluminum metals, as well as weather hazards due to molds and UV light. The T&G is the same size as the cladding so gluing is not strictly necessary but in some situations may prove beneficial for handling etc. At this point consideration should be given to how the cladding will look once fitted. Unless your architect, design professional or building Inspector has detailed otherwise and assuming that you have already chosen your timber cladding there are some basic design rules that need to be considered. Decide whether the centre of the focal point is best suited to the centre or edge of the board. Cavity Wall – To clad a cavity wall, … SCREWS – After many years of trialling various stainless steel pins, nails and screws we have found the Tongue Tite stainless steel cladding screw performs the best. B. Airflow between the structural part of the building and the reverse of the cladding is critical to prevent trapped moisture. Battens need to be made from durable timber e.g. Both countries suggest waterproof tide at the corner.Friction can be made from galvanized or stainless steel, copper, lead, aluminum or plastic and, depending on the material, the corner joint can be waterproofed by welding, gluing epoxy resin, bending without cutting or using of special final pieces. For vertical cladding you will need to counter batten, this is where you put a vertical batten to the building, with a minimum thickness of 15 mm and then fix a horizontal batten to take the vertical board. Fit Corner Posts – Once oiled, start by fitting the  corner posts. The area below this is considered a ‘Splash Zone’ where timber will weather quicker due to rain splashing back on to … In this case, the wooden window seals are not required to reach the outer surface of gladding up to 80 mm or more, and this requires separate seals – for the purpose of wood cloth – usually using metal flashing.On the upper end of the seal flashing (where they are stuck under the window frame), it is easy to obtain an air and waterproof seal on top, which is the air seal supplied air-siege membrane or little outside Flashing around openings should be projected by the wall of at least 50 mm. Your email address will not be published. Typical Section Showing Fitting Of Horizontal Cladding, Typical Section Showing Fitting Of Vertical Cladding, Timberclad Guide: The Various Types of Timber Cladding – Part One. The 150 mm brush is ideal for cladding faces as you are able to oil the entire face in one pass. FIT CLADDING – By following the above sequence you should now have everything prepared and fixed points to measure from. In addition, high rainfall and relatively mild climate in some parts that can lead to very high levels of relative humidity, especially in the winter months. Access hatch 3.2. However, it is still the process of organizing and advising Norwegian companies. TRADA recommend a minimum of an 8-10 mm clearance gap on end grain to reduce capillary action, this would be good practise on an unfinished board but for many this size gap would be unacceptable. Flashing around openly requires detailed care, and these details are mostly described in UK literature. Whilst, as a detail, these look great in practise, these sharp corners and straight lines are hard to achieve. The lower insect mesh should be fitted with the bend up and the upper insect mesh fitted with the bend facing down. BATTENS – Time and thought should be taken fitting battens to ensure they produce a level and flat surface for the cladding. Screws – After many years of trialling various stainless steel pins, nails and screws we have found the Tongue Tite stainless steel cladding screw performs the best. The frame between the frame and the. Cut vertical jamb lining to length utilising the same angle as the sill, there should be a gap of at least 6 mm between the end of the door/window trim and the sill. Imported wooden structures such as Canadian Western Red Cedar and Siberian Larch are preferred, and more modern, contemporary faces are preferred, which are specifically mentioned for climbing. Benchmark timber can mill planed square cedar up to 195mm wide for trim around windows and for soffits and other trim. The top of your doors and windows should be level, so use this as a datum to work from. If you continue to use this site we will assume that you are happy with it. Save my name, email, and website in this browser for the next time I comment. External Wall 1.1. window seal flashing requires water leakage to return to control and at least 20 mm vertical surfaces. We find an acceptable size is 6 mm. For simple rectangular elevations a vertical batten providing air flow will be sufficient but on triangular elevations counter battening may be necessary for fixing at the perimeter. The area below this is considered a ‘Splash Zone’ where timber will weather quicker due to rain splashing back on to the wall. If the board is oiled (with particular attention to sealing the end grain) this gap can be reduced. The lower insect mesh should be fitted with the bend up and the upper insect mesh fitted with the bend facing down. Seal junctions between battens and trims with a good quality non silicone black sealant, once again this reduces the likelihood of capillary action and blacks out where a strong contrast in batten colour is present. should be protected behind a cover board (‘release the check’) which overlaps by frame 10-20mm. We use cookies to ensure that we give you the best experience on our website. The Red Grandis Channel covers 100 mm with the Cedar covering 130 mm. This feature allows both sides of the corner to be full width. The area below this is considered a ‘Splash Zone’ where timber will weather quicker due to rain splashing back on to the wall. However, they must be stopped so that the staple is separated from the flicker by means of a gap of at least 6 mm in order to avoid the absorption of glucose in moisture. Here Andrew has fitted some of the narrow boards horizontally. The 150 mm brush is ideal for cladding faces as you are able to oil the entire face in one pass. These details describe the best practices from a retail point of view for durability. The top of your doors and windows should be level, so use this as a datum to work from. Class D4 Polyurethane adhesive should be used and cleaned off when set. Tile hanging off timber frame 1.8. Time and thought should be given to how the cladding and create a drip at the main point. Requires detailed care, and the reverse of the connections can be reduced level, so this... This is by using an off cut of the fixing is not strong enough to movement. The details of the tongue as a spacer and aluminum metals, a! For larger surfaces trim – the door/window trim – the door/window trim can fit flush or protrude from finished... Be taken fitting battens to ensure there is a vertical cladding also adds.. ( with particular attention to the tongues and grooves and back as once fitted will... Flashing around openly requires detailed care, and website in this browser for the next time I.. 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