Felt roofing is still common across Fishponds, particularly on older extensions, garages and outbuildings, but as these roofs reach the end of their useful life, many homeowners are turning to EPDM rubber membrane as a replacement rather than simply re-felting like for like. It is a sensible question to ask whether this switch is genuinely worthwhile, and in most cases the answer is a fairly clear yes, for several practical reasons.
The core issue with felt roofing is that it is built up in overlapping layers, with joints running across the roof wherever sections meet. These joints are the most common point of failure as felt ages, becomes more brittle, and is exposed to years of rain, sun and temperature fluctuation, which is a familiar pattern across Fishponds's older housing stock with felt roofs original to extensions built some years ago.
EPDM addresses this weak point directly by being manufactured and typically installed as a single, continuous sheet, which on many domestic roofs can be fitted with minimal or even no seams at all. Removing the seams removes the most common cause of felt roof leaks, and the rubber material itself remains flexible across a far wider temperature range than aged felt, which tends to stiffen and become prone to cracking over time.
Longevity is one of the clearest advantages when comparing the two directly. Felt roofing often needs replacement or significant repair within roughly 10 to 15 years of installation, while EPDM is commonly guaranteed for 20 years or more when installed correctly. For a Fishponds homeowner weighing up the cost of replacement, that extended lifespan often makes EPDM the more economical choice over the full life of the roof, even if the initial outlay is broadly similar or slightly higher.
Replacing felt with EPDM does not typically require any change to the roof's underlying structure, since the new membrane is installed onto the same timber deck that supported the felt, provided that deck is confirmed to be in sound condition once the old covering is removed. This is an important caveat, since felt roofs that have been quietly leaking for some time can allow water into the decking beneath, and any affected boards do need repairing before the new EPDM goes down.
The switch also presents a useful opportunity to review other aspects of the roof at the same time, such as correcting inadequate falls that may have caused standing water under the old felt covering, or adding insulation if the room below has previously suffered from heat loss or condensation issues.
Appearance is a modest but real bonus for many Fishponds homeowners too. Where felt often shows visible overlaps, chippings, or a slightly uneven surface as it ages, a properly installed EPDM roof tends to present a smoother, more consistent finish, which can be worth having in mind for a roof section visible from upstairs windows or a neighbouring property.
For the great majority of Fishponds properties currently covered in ageing felt, replacing it with EPDM tends to be a sound long-term decision, offering fewer seams, better flexibility, and a considerably longer typical service life. Brunel Roofing Bristol can assess your existing felt roof, check the condition of the deck beneath, and advise on replacing it with EPDM as part of a properly specified, roof-specific project.
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