Spotlight on Roofing Battens

by scott douglas

Roof Battens are rarely seen due to the Speed and efficiency of Professional Tradesman, quickly Installing Roofing Tiles.

If you are Building a New House or Going through a Refurbishment, Roof Battens are integral to the Project.

WADE BUILDING SUPPLIES | IMAGE OF ROOF BATTENS IN SITU READY FOR ROOF TILES TO BE APPLIED

Your Roofing Battens provide essential functions, including

  • Fixing point for Roof Tiles
  • Carrying the Weight of Roof Tiles
  • Roofing Battens Help Ventilation
  • Support Weather-Related Loads such as Snow Ice and Wind
  • Meet BS 5534 Requirement for Roof Installation

Roofing Batten Quality

Whist, your Roofing Batten must meet the BS5534 Roofing Requirements. 

It's important to note this is a Minimum Requirement.

We recommended checking your Roof Battens before installation. 

Check your Roof Battens have not been damaged in transit or the rare occurrence of a defect getting past the Quality Control Process.

When checking your Roofing Batten, always check

  • Defects - Should be cut out of Roof Battens less than 1.2 Metres Long
  • Distortion - Timber Should be Straight with a maximum 5mm Tolerance over 1.2 Metres
  • End Splits - Should be Trimmed from your Roof Battens Before Use
  • Fissures - Must not exceed half the Roofing Batten Thickness or 300mm
  • Graded - All Roof Battens must be Graded
  • Knots - Are allowed Dependent on Position and Size
  • Growth Rate - Your Roof Batten should show at least Four Annual Growth Rings

There are Tolerances for your Roof Batten including a Dimension Tolerance of

  • Width +/-3mm
  • Thickness +3mm/-0mm
  • 20% Moisture Content

There should be no decay or Insect Attack Damage to your Roofing Material.

Sap Stain is permitted along with Resin Pockets as long as they do not exceed 70mm in length and 6mm in Width.

The Good news is Reputable Suppliers and Manufacturers who Sell a Roof Batten Range will have an Inspection Process in Place.

WADE BUILDING SUPPLIES | QUALITY CONTROL TIMBER ROOFING BATTENS

Installing Roof Battens

First, work out how many Roofing Battens you will need for your Project.

Assuming a Pitched Roof, this process is Fairly Simple

  1. Note down the Measurement for the Eaves Sections
  2. Times the Number of Tile Rows by the Length of the Eaves for that Section
  3. This result is the total length of Roof Battens for each Side
  4. Add the Two Sides together to give you the full Length in Roofing Battens
  5. Order a Little Extra to cover Mistakes, Damage and Defects.

Now, Check you have planned and have the correct Spacing.

Roofing Materials: Tiles should be evenly spaced to enhance the property's look and ensure the Roof is Watertight.

Typically your Roof Batten would be at least 1.2m long, and this would allow the Batten to span at least three rafters at six hundred millimetres apart.

Ensure you spread the lengths so joints can be staggered

Roofing Batten Spacing

  • Fix at the Centre of Rafters no more than 600mm apart
  • You should join no more than One in Four Timber Battens over One Truss (Over 200mm)
  • Span at Least Three Rafters - 1.2m Minimum Batten Length
  • No More than Three Consecutive Joins in Twelve Batten Coursing (Under 200mm)

Remember, this information is based on a Standard Tile Roof. 

Your measurements will need to be adjusted for other Roofing Material such as Slates or Shingles.

WADE BUILDING SUPPLIES | ROOFERS RESTORING SLATE ROOF IN WALES

Fixing your Roofing Battens

Ensure you have all the correct Building Materials to hand, including suitable Nails, included in the BS 5534 Requirement.

The Nail Length should be at least Sixty-Five millimetres, providing at least forty-millimetre penetration into the Timber Rafter.

Your Nail should have a Diameter of at Least 3.35mm.

At the Lower Edge of the Roof, Nail your Roofing Batten at the Centre of the Rafter.

The Joint should be Directly over Rafters, and your Roofing Battens should be Tightly Butted, Square Cut and Skewed Nails.

If Roof Battens are set in Mortar, it is essential to ensure adequate treatment added to the Set Area.

You are now on your way to a Secure Roof for your House.

Brand New or Refurbished, your Roof Battens Hidden away will keep you Secure for Years to come.

Whilst we ensure our Guides are Accurate, they are General guidelines, and we understand all Projects Differ.

Always ensure you carry out your own Research for your Specific Construction Project.

If you have any questions about Suitable Roof Timber, Please do not hesitate to contact us.

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