17/12/2024
WHAT'S BETTER FOR A FLAT ROOF, FIBREGLASS OR EPDM? Part 2 -
Suitable for foot traffic and equipment placement.
EPDM is not compatible with foot traffic and equipment placement (e.g. ladders). It is notoriously susceptible to punctures, and in most cases, the punctures are subtle and hard to detect. On the other hand, fibreglass can withstand foot traffic and heavy loads. Fibreglass is therefore favoured over EPDM when the flat roof doubles as an area that will be accessed or experience foot traffic, such as a balcony or room with outdoor seating.
Puncture resistance
A common complaint about EPDM is that it's highly susceptible to punctures caused by sharp objects such as gravel (which often gets trapped in shoes), falling debris and equipment like ladders. In addition, EPDM membrane leaks can be notoriously difficult to detect and cost thousands of pounds to fix. By contrast, fibreglass GRP is highly resistant to sharp objects and can be reinforced if necessary.
Longevity
With both types of roofing, you can expect long-term durability, and you will usually receive more extended guarantees than traditional felt flat roofs. The GRP fibreglass roof is still one of the most robust systems available, thanks to the fibreglass resin matting and the top layer coating. Together, they form an incredibly tough laminate. When installed properly, fibreglass has consistently been shown to have the longest lifespan of any roofing material. The quality of the EPDM selected plays a significant role in its long-term durability. While both systems are commonly used in the UK for flat roofing, it is essential to understand that the quality of the ingredients, the quality of installation, and the level of care and maintenance provided to the roof ultimately determine its lifespan.
