Question: Why are roofing battens different Colours?

The original idea behind putting a dye into the battens’ preservative treatment was to make “graded” battens stand out from the usual, “ungraded” ones (which usually look a bit green in colour, on account of the type of preservative used) and for that reason, the colouring process was originally very successful – with …

Why are roofing battens red?

JB Red is the branding given to our BS 5534 graded roofing battens, which are coloured red to help identify the batten as graded on site. … This gives a straight distortion free batten that is light to handle and meets the required moisture content in BS 5534.

Why are battens blue?

The battens are blue in colour indicating that each individual batten has been assessed, graded and complies with the strength requirements of BS 5534 : 2003 + A1 : 2010.

What are blue roof battens treated with?

Treatment – Roofing battens should be preservative treated to Use Class 2 in accordance with BS 8417.

Should roof battens get wet?

4 – Drying process – Timber which is too wet is prone to mould growth and potentially rotting. However, it must be dried in a controlled way to prevent defects such as warping and splitting. Check that battens you buy are kiln dried as this helps to stabilise the timber.

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What length are roofing battens?

They are supplied in 25x38mm and 25x50mm sizes and can be provided in lengths of at least 3m, although lengths of 3.6m or more are typically supplied.

How many roof battens do I need?

To ensure this, the battens should be at least 1.2m long. Not more than one in four course of battens should be joined over one truss for gauges over 200mm. Below a 200mm gauge, there can be 3 consecutive joints in any twelve courses.

What are roof battens used for?

Roof battens are not just to provide footholds for roofers, but are an important part of the roof structure itself. They take the loads imposed by slates or tiles as well as loads from snow and wind. Quality battens are increasingly seen as an important part of forming a secure roof.

What is the blue coating on timber?

Blue pine has been treated with synthetic pyrethroids to resist borers and termites. The treatment is usually water-based, and better for the environment than many other treatments.

Is felt and batten waterproof?

IS FELT WATERPROOF? The answer is Yes felt is waterproof, the sarking felt which is laid over support rafters or counter battens, beneath the tile or slate battens provides waterproofing.

What is a roof lath?

Roofing battens or battening, also called roofing lath, are used to provide the fixing point for roofing materials such as shingles or tiles. The spacing of the battens depend on the type of roofing material and are applied horizontally.

What size Batten do I need for a trellis?

Battens between 30mm and 60mm will give you ample depth and good rigidity. Make sure they’re also treated for outdoor use before fixing, then screw these to the fence or wall where the top and bottom of the trellis will sit (with an optional batten in the middle if you have a large structure to attach).

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Can rain get under roof tiles?

Whilst roof tiles and slates are designed to keep out any rain, there is always the chance that strong winds can lead to rain forcing its way through any gaps or underneath the tiles.

Will roof battens rot?

You can get some rot in roof battens, but, generally, it’s at the roof’s edges, such as at chimneys or in verges – the edge of a roof that has a gable. Battens in the main body of the roof do not rot, unless there are some major long-term defects, or the tiles have become porous.

Are old roof battens treated?

If they are tile battens then from an old roof then that makes it more likely that they aren’t treated . The batterns are one off the first things to be replaced on any roof work and are far less likely to be retained and retro sprayed.

Roofs and roofing