A landmark 25-year field study by the BRE (Building Research Establishment), Europe’s leading independent timber testing authority, has demonstrated the effectiveness of Postsaver total barrier sleeves in preventing decay.
Following the EN252:2014 standard - the European benchmark for testing wood preservatives in ground contact - the BRE exposed timber stakes to real-world, long-term conditions for nearly 25 years.
The Goal: To see how various treatments held up against decay, moisture, and microbial attack at ground level.
The Findings:
The secret lies in Postsaver’s dual-layer barrier sleeve technology - a combination of a tough, heat-shrinkable outer layer and a meltable inner seal which locks in preservatives and seals out decay threats at the most vulnerable section of the post: the ground line.
This synergistic approach means better protection with less chemical waste, and ultimately, a longer lifespan for timber installations.
As timber fencing continues to face growing competition from alternative materials such as concrete, steel, and plastic, durability is more important than ever. Postsaver is ensuring that, in conjunction with preservatives, timber used in ground contact is seen as a reliable, sustainable choice - without compromise keeping wood as the material of choice for use in ground applications.
Beyond the BRE study, Postsaver continues to lead the way in post rot protection.
The Pro-Wrap and Pro-Sleeve products come with a 20-year post replacement guarantee, while Pro-Wrap +PLUS offers 40 year post replacement guarantee when used with UC4 preservative protection. With many millions of sleeves in use in over 35 countries, this is a solution the world is getting behind.
The company's heavy duty Polesaver sleeves are used in over 35 countries to provide protection to utility poles used in critical power distribution and telecom networks.
Whether you work in fencing, agriculture, landscaping, or construction, Postsaver is ready to help support your projects. Get in touch for more information about the most suitable Postsaver products to use to guarantee your work lasts, and to add those final touches.
Read about our Postsaver guarantee and test data here, or to discuss the BRE results in greater detail, please get in touch with the Postsaver Team.
*When applied to posts that meet the requirements of BS8417:2012 - UC4 (Use Class 4) or UC3 (Use Class 3). See warranty for details
**Based on not having to replace your fence in 10 years time due to post failure.
Postsaver uses long term independent test data on the effectiveness of barrier sleeves and wraps to reach all the conclusions given on this website (test data available on request). Based on this data, Postsaver believes longer life, maintenance of strength over time, improved safety and reliability, extended inspection periods and reduced maintenance requirements are reasonable claims. This is subject to Postsaver products being correctly applied as per our instructions and used on correctly preservative-treated (use class 3 or higher – use class 4 recommended) wooden fence posts that are free of decay at the time of rot protection application. The claims made, real or implied are not warranties. It is the responsibility of the user to evaluate and satisfy themselves that the performance of the product meets their specific safety, reliability, extended inspection, repair and any other performance or cost-benefit criteria before using Postsaver rot protectors.
