Standing seam roofing represented a design revolution when it was first manufactured over 30 years ago, overcoming many of the pitfalls associated with composite shingle and affording far superior durability and versatility.
A range of fade resistant colours and a lifespan of upwards of five decades mean this incredibly low-maintenance, weather resistant roofing material is highly sought after by home and business owners for both new builds and refurbishments.
Most often manufactured from Galvalume steel or aluminium, standing seam roof systems incorporate 18 – 24” wide sheets of metal that are clipped together by rolled side laps that form locks. A special seaming tool is used to seal the joints and attach them to a supporting halter, preventing water intrusion while allowing for the slight amount of movement that comes from thermal expansion. An underlayment is still used but the sheets are fastened with concealed fixed copper cleats, meaning that the risk of water intrusion is further reduced through the absence of penetrating fasteners.
The Advantages
- Raised seams further minimise points of entry for moisture, and there is only one vertical seam per sheet (no horizontal seams to fasten) and the added advantage of no end-laps
- Highly durable metal means an impressive lifespan and minimises potential damage caused by weathering and severe weather damage like falling tree limbs
- A fade-resistant coating means that you have a choice of colours, and standing seam roofing has a reputation for low-maintenance, rarely needing to be cleaned. It’s also streak and stain resistant
- A range of colours – including blues, greens, browns and greys – means that you can match the aesthetic of a range of properties
- A range of complex shapes can be formed through curves and tapering, and features such as hatches, vents and roof lights can be incorporated without compromising structural integrity
The Disadvantages
- It can be harder to find a trained standing seam roofer
- Not suitable for flat roofs
- A higher cost than traditional roofs due to the need for surveying, specialist labour and materials
A long lifespan can mitigate the disadvantages of higher costs, and because of its versatility and weather resistance, standing seam roofing is used on a wide variety of projects. The ability to shape and taper the sheets means that it’s ideal for many modern builds with demanding or custom aesthetics and roof geometries, as well as for refurbishments.
Coupled with competitive sound reduction qualities and lighter coloured coatings that reduce solar heat gain, it’s also an environmentally sound roofing option that takes advantage of state-of-the-art manufacturing processes.
Written by Morgan Asphalte, the leading provider of roofing services to customers throughout Wimbledon and the wider London area for over 45 years.