Types of Metal Roofing
Metal roofing is an ideal choice for structures where durability, fire resistance and speed of installation are primary considerations. In this guide, we explore the different types of metal roofing to help you choose the right option for your premises.
Why Your Choice of Roofing Material Matters
When choosing roofing, there are multiple factors you’ll want to consider. Material is particularly important when selecting the right roof, affecting anything from the roof’s durability to ongoing maintenance requirements. Cost is also a key factor when selecting the most suitable metal roofing material – encompassing not only the upfront cost of installation but also longer-term energy bills, which vary depending on the thermal efficiency of the material chosen.
Different Types of Metal Roofing Materials
Metal roofs can be a low-maintenance, versatile and attractive solution for your premises. There is more than one type of metal roof available on the market, each of which has its own benefits and challenges. We cover some of the most popular types of commercial metal roofing below:
Steel
Steel is one of the most popular materials for metal roofing. This high-strength alloy can easily be fabricated into a range of widths, lengths and profiles to suit the requirements of your property. Galvanised steel is the most common of the steel roof materials, where zinc is layered over the steel to prevent corrosion. Galvalume steel, which uses a combination of zinc and aluminium, is also popular.
Benefits and Challenges of Steel
Steel is cost-effective, easy to install and resistant to corrosion and rust. Steel is available in a range of colours and profiles and can be recycled when it reaches the end of its lifespan. However, you will need to regularly clean debris and materials off the roofing to prevent damage. Proper installation is also essential to maximise the lifespan of the installation.
Aluminium
Aluminium is a lightweight, cost-effective solution for metal roofing. It is available in a range of thicknesses and styles to suit the individual requirements of your installation, making it a versatile solution. Aluminium is often utilised, as it is abundantly available as a metal, including as recycled material from existing constructions and household items.
Benefits and Challenges of Aluminium
One of the key benefits of aluminium is its easy malleability – it can be shaped effortlessly into tiles, shingles, corrugated panels and more. Aluminium is also extremely energy efficient, with the ability to absorb and retain heat in the colder months. However, aluminium’s primary limitation is its relative softness, which can make it susceptible to denting and surface damage.
Zinc
Zinc is an attractive and versatile material that is most commonly used to create striking, corrugated roofing on a range of structures. This material is long-lasting and reacts naturally with carbon dioxide and moisture in the air, forming a layer of zinc carbonate that appears charcoal in colour and protects the roof from corrosion. This is particularly valuable in coastal areas where salt and moisture can reduce the longevity of roofing.
Benefits and Challenges of Zinc
Zinc has excellent longevity when properly installed. Over the years, the cost savings on energy bills can offset the higher initial cost of a zinc roof, as the roofing sheets absorb heat to help you to save on heating prices. Zinc does require ongoing maintenance and is also prone to chalking in areas of water runoff, which can result in visible streaking over time.
Copper
Copper is one of the most visually appealing roofing materials and is used for roofing in anything from residential to commercial and industrial properties. The unique appearance of copper changes over time, like zinc, but with a much more dramatic end result, oxidising from a deep orange to a distinctive blue-green patina, a result of copper carbonate formation that protects the metal from further corrosion.
Benefits and Challenges of Copper
Copper is long-lasting and beautiful to look at. Unlike other metals, these roof sheets can be soldered to create a strong, watertight seal, further protecting against leaks and water ingress. Copper can also be installed as shingles for a distinctive look. However, it is worth noting that copper may not oxidise evenly, creating a mottled look over the years. This expensive material can also cause run-off staining on cladding or walls if drainage is not correctly installed.
Common Metal Sheet Profiles for Commercial Buildings
Standing Seam
Standing seam roofing is a premium finish where metal panels are fitted together with interlocking seams. This type of roofing uses specific joining methods instead of requiring screws that pierce the surface of the metal, improving longevity and preventing potential leaks.
Corrugated
Corrugated roofing is one of the most popular profiles, where sheets of metal are installed with an overlap and secured in place with roof screws. These metal sheets have a crimped, rippled or wavy repeating pattern that allows water to run off easily and provide structural strength.
Shingle
Metal shingles use a series of overlapping, individual pieces of metal that resemble the traditional clay or slate shingles used on properties across the UK. These stamped or pressed shingles are hard-wearing and durable, with a lighter weight than typical concrete or clay shingles.
Tile
Metal tile roofing is similar in functionality to shingle roofing, offering a durable and lightweight system, replicating the appearance of slate, clay or concrete tile roofs. These tiles can be installed at low pitches and can have a tile-effect, slate-effect or smooth, modern gloss finish.
Metal Roofing at Central Group
Central Group is a highly experienced roofing contractor with more than 40 years of experience in providing long-lasting roofs, available in a range of styles, from pitched to flat roofing. Our specialist roofing experts can install various types of metal roofing that suit your goals and style, from striking copper to cost-effective steel roofs.
Call our team on 01432 354 000 or fill out our contact form to enquire about our metal roofing services.