{"id":11669,"date":"2019-12-02T10:51:10","date_gmt":"2019-12-02T10:51:10","guid":{"rendered":"https:\/\/neotimber.com\/cladding\/?page_id=11669"},"modified":"2022-07-22T09:13:48","modified_gmt":"2022-07-22T08:13:48","slug":"subframe","status":"publish","type":"page","link":"https:\/\/neotimber.com\/cladding\/advice\/installation\/subframe\/","title":{"rendered":"Subframe Installation"},"content":{"rendered":"

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We cover all things framework in this guide to installing a composite cladding subframe.<\/h2><\/span>
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The design, layout and construction of your cladding subframe is pivotal to a successful cladding installation<\/a>. While a variety of different materials can be used to construct a cladding subframe and cladding applications can vary drastically, this guide is designed to provide you with the overall guidelines you\u2019ll require to take into your installation. We view these guidelines as a set of rules to apply to your installation, as opposed to a rigid step-by-step guide.<\/p>\n

This guide firstly covers the broad areas of installation, such as joist materials you can use, joist spacings and positioning, ventilation requirements and general consideration of subframe design and layout. The guide shall then provide a step-by-step instruction on how to install our own composite joists<\/a> to form your cladding subframe.<\/p>\n<\/div>

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Subframe Installation Overview: Joists, Layout & Ventilation<\/p><\/h2><\/span>

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The materials that can make up a cladding subframe<\/a> are varied and for that reason, there are a number of ways in which your cladding subframe<\/a> can be constructed. NeoTimber\u00ae understand this and offer an overarching set of guidelines to help you navigate your way through the appropriate installation methodology for our composite cladding products<\/a>.<\/p>\n

There are a number of different joists, or batons materials that can be used for installation. This section of the guide takes you through the materials that can be used and then offers advice on the subframe design and layout that will ensure correct fixing of both the cladding subframe<\/a> and NeoTimber\u2019s composite cladding products<\/a>.<\/p>\n<\/div>

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Use The Appropriate Joist Material<\/h2><\/span>
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We provide a long-life, lightweight subframe solution<\/a> for our cladding boards<\/a>: our NeoTimber\u00ae Composite Joist (40mm x 59mm x 3600mm)<\/a>. It is recommended (but not a necessary requirement) that you use this solution. Alternative joists come in the form of timber or aluminium. If compliant with building regulations, then both materials can be used to install NeoTimber\u00ae cladding<\/a>.<\/p>\n<\/div><\/div><\/div>

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Joist Spacings & Positioning<\/h2><\/span>
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Joist spacings should sit at no wider than 500mm, regardless of the type of baton you will be installing your NeoTimber\u00ae cladding<\/a> onto. In high wind load areas, we suggest narrowing joist centres to 400mm.\u202f Spacings of 20mm between adjoining joists must be\u202fobserved\u202fto\u202faccount for expansion and contraction of the subframe material.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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Ventilation Requirements<\/h2><\/span>
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Allow a minimum of\u202f35mm space\u202fbeneath the cladding boards\u00a0to ensure adequate airflow for the cladding system \u2013 hence why we recommend that a joist with a minimum thickness of 35mm should be used. There should also be a continuous 15mm gap left at the top and the bottom of the cladding system\u202fto\u202fensure adequate ventilation. Ventilation is a key factor in removing moisture from the material, which in turn ensures the long-life of NeoTimber\u00ae cladding products<\/a>.<\/p>\n<\/div><\/div><\/div>

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Install A Breathable Membrane<\/strong>
\nTo aid ventilation and avoid damage that can result from moisture build-up, we advise installing a breathable membrane before installing battens.<\/p>\n<\/div>

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Subframe Design & Layout<\/h2><\/span>
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Plotting the layout of your battens will ensure that you\u202fprovide\u202fadequate support to your composite cladding boards<\/a>.\u202fConsider\u202fthe overall design<\/a> of your cladding section prior to installation. Special consideration should be\u202ftaken into account\u202ffor the following:<\/p>\n