Tile Fixings

Overview

The new Code of Practice has increased the minimum tile fixing specification to meet EU standards and take account of future extreme weather. Roof tile manufacturers will have to update their fixing recommendations to account fo these changes.

Contractors will need to obtain and implement updated, site-specific fixing specifications from the manufacturers of the roof tiles being used.

Beware, as tile fixings (particularly clips) are designed for specific roof tiles. Not all tile fixings are equivalent as they can vary in their key mechanical properties and therefore performance.

For more details see the sections below.

Why the change?

When the wind blows over a roof, uplift forces act on both the underlay and the tiles. The roof system has to be designed to withstand these forces for the design life of the building, typically 50 years.

Current design wind loads are based upon old national wind load standards. The new Code of Practice introduces load calculations based upon the new Eurocodes, resulting in greatly increased design wind loads on traditional slated and tiled roofs.

The new Code of Practice introduces load calculations based upon the new Eurocodes, resulting in greatly increased design wind loads on traditional slated and tiled roofs. 

The new code also significantly increases the minimum fixing requirements for roof tiles. For example:

  • All single lapped tiles on a roof now need to be mechanically fixed
  • Tiles at the perimeter must now have a minimum of two fixings.

Overall the impact of the new standard for traditional slated and tiled roofs is significantly more onerous fixing specifications.

Since fixing specifications vary greatly and are based on many factors – including location and type of building – it is even more important that every roof is fixed in accordance with manufacturers recommendations, ideally with a site-specific fixing specification.

On a cautionary note contractors should not rely on historic experience and make sure they obtain an updated recommendation.

As part of our commitment to BS 5534, Redland will be updating all fixing recommendations to the new standard.

Be Warned:

Enforcement to ensure the correct fixing of roofing systems is increasing. Failure to follow this guidance may result in the roof being stripped and re-tiled.

What to do

Redland supply a comprehensive range of fixings for our range of tiles including nails, screws and clips. These fixings are designed specifically for Redland tiles and are manufactured from quality materials to comply with the new Code of Practice.

Redland’s new online fixings calculator tool – FixMaster Online – is accessible from the Redland website or via mobile devices. It gives an instant and simple fixing specification for a site wherever you are.

The online tool can calculate a fixing specification based on both the old and new versions of BS 5534, and for any Redland tile.

For a more detailed specification, Redland’s Technical Solutions team provide thousands of fixing specifications every year for contractors across the UK. Contact the Redland Technical Solutions Hotline on 08708 702595.

The service has been updated to the new standard providing the most economic fixing specifications available for Redland roof tiles.

FixMaster Online will provide a fixing specification to ensure your roofs are securely installed to the latest standards.

All Redland tiles have specifically designed fixings that give maximum results in our stringent testing facilities. It’s therefore very important that you use the correct fixings for your project to ensure the lifetime of the roof.

Videos

Kro-Clip Installation

Visit the Monier Redland YouTube channel by clicking here.