Timber is mostly used as the substrate for ventilated roofs.
This is usually presented in the form of soft-wood boarding, WBP exterior grade plywood sheathing or Class 3 OSB sheathing.
The minimum thickness used for the substrate is around 22mm for the s/w boarding and 18mm for the plywood.
When used on a cold roof or a façade the roof will need to be ventilated.
VMZ Zinc plus should be used when installing over plywood or during a warm roof application.
Installing a zinc roof has various different methods depending on your design and type of roof.
Basically, roof fixings are used to attach the zinc to the roof.
The standing seam zinc roofing used hidden clips that are hooked into the seam, or screwed/nailed into the substrate below.
For any roof installation, especially a zinc roof installation you should always involve a roofing professional
Read more here.
Around 0.7mm thick; it’s the standard roofing thickness.
Although, long panels or exposed sites, zinc that is 0.8mm thick should be considered instead.
When it comes to standing seam panels for wall cladding, they should be no larger than 430mm or 0.8mm thick.
One of zinc’s benefits is the fact it can last over 100 years in unpolluted environments.
In the urban environment, zinc can last anywhere from 60 to 80 years. See more benefits.
Copper is the most expensive, with zinc coming in second place.
Tiles and asphalt can be unreliable roof materials as we know due to the consistent need to repair and replace, this is often a cost avoided with zinc roofs.
Just that it is more costly than other roofing materials. There are no other negatives when it comes to zinc being used as a roofing material.
It is strong, durable and malleable. It adds significant value to the property and provides a great return on investment for homeowners.
This is just a common metal roof myth – in fact, metal roofs will be just as noisy as your standard asphalt roof. So you won’t notice a difference there!
The protective patina will protect your zinc roof from rust and corrosion. It is also moisture resistant!
This makes zinc one of the most reliable and longest-lasting metal roof solutions on the market today.
Is zinc a good building material?
As a general rule, try to avoid walking on the roof after installation, even if the zinc is protected by film.
However, when necessary, special ladders which are designed for this purpose can be used, as well as security footwear that’s suitable for slippery surfaces.
0.7mm is 5kg and 0.8mm is 5.8kg.
It will get hot as it is subjected to the sun.
Warning from VMZinc:
Zinc will get hot as it is subjected to the sun. The maximum surface temperature of QUARTZ ZINC is 176°F and the maximum surface temperature of ANTHRA ZINC is 190°F. Caution should be used when handling the zinc. Even if the ambient temperature is, for example, 70°F, the zinc can still reach its maximum surface temperature.
Metal works fantastically on flat roofs which have a low pitch. Metal roofs are a greener solution that can last several years and require little to no maintenance.
We have offices and roofers based across the UK, that’s what makes us one of the largest, leading roofing companies in the south-east.
If you are considering using VM Zinc give us a call on 01787 278103, or pop into our office to see our showroom with samples of VM Zinc in different colours.
Our address: Unit 7 Woodhall Business Park, Drury Drive, Sudbury, Suffolk, CO10 1WH. Get directions.
We also offer a range of rainwater systems. Including half-round, box gutters and downpipes.
Below are the range of colour swatches available in the VM Zinc range: