How is Perforated Sheet Metal Affected by the Weather?

Different grades of perforated metal can perform differently under different weather conditions. We go over some of the key information you need to know below.

What Is Perforated Metal?

‘Perforation’ is another word for ‘hole,’ so perforated metal is simple sheet metal with holes punched into it. These holes can be of various shapes and sizes, and can perform various functions and effects. Perforated metal is also called perforated sheet and perforated screen, and can be made from a variety of metals, including stainless steel, cold rolled steel, aluminium or other metals.

The mining industry first used perforated metal about 150 years ago. It used it to filter coal. Early efforts at making perforated metal sheets were inefficient. Labourers punched holes in sheets of metal by hand. Mechanised methods of punching holes have greatly increased efficiency and accuracy in this process.

How Is Perforated Metal Manufactured?

The process of manufacturing perforated metal begins with a metal sheet. Like the name suggests, the metal is thin and flat, much like a bed sheet in shape. It can be cut to any desired shape prior to, or after, perforation. The thickness of the metal is measured in mm in most of the world, but the United States uses ‘gauges.’ The larger the gauge, the thinner the metal.

Most metal perforation is done using a rotary pinned perforation roller. This device is comprised of a large cylinder with strong, pointed needles on the outside of it. As the sheet is passed under the rolling cylinder, the needles punch holes in it. In some processes, the needles are heated, and the sheet is paused under the roller just long enough to partially melt the edges of the new hole, decreasing sharpness.

The size and configuration of the hole patterns are determined by the roller chosen.

Die and punch perforating is another common method. Rather than using a continuous roller, die and punch uses a plate with needles on it, which is pressed down upon a sheet of metal, thereby punching holes in it. The surface is cleaned and smoothed afterwards by a sheer. This process is efficient and can quickly punch holes in large sheets.

The most advanced method of perforating metal is laser perforation. As you might assume, laser perforation requires a very expensive system. The benefits of it include extremely precise perforations which are heated during the process, similar to heated rotary needles. Consistency is very high.

How is Perforated Sheet Metal Used?

Modern architecture uses perforated metals often, and for a variety of purposes.

These sheets are excellent for sun protection, as they let limited light through small holes but don’t block it out completely like a solid sheet would. The perforations also allow ventilation, either natural or mechanically-driven, which further assists in climate control. Since the perforations can be punched in a variety of patterns and shapes, the purpose of these design elements is often mistaken for something purely decorative, whereas they function beyond that as well. Savings in heating, cooling, and other environmental controls are all gained by using this kind of simple design element.

Perforated sheets can function in much the same way, but for filtering out sound. The solid parts of the sheet block or deflect sound, while the holes allow some of it through.

Perforated sheets are also excellent for use as balustrades. They function almost as a solid barrier, but are lighter and still allow air flow and beautification through hole patterns and shapes.

Many industries use perforated metals. The food and beverage industries use them in wine vats, fish farms, sorting machines, fruit and veg presses, grain dryers, and even baking trays. The energy and chemical sectors use them for filters, mine cages, elevators, filters, coal washers, battery separator plates, centrifuges, and more. They are used in the automotive industry for oil filters, radiator grilles, engine ventilation, motorcycle silencers, and purifiers. Material development uses them for blast furnaces, cement slurry screens, safety cages, blast furnace screens, textile printers and felt mills, and more.

Clear Weather Questions

As a result of these processes, there are clear differences in how we should view metal for outdoor and indoor use. We also need to consider things like vibrations, and climate factors (such as average rain acidity). This will all determine the final choice for your steel or other metal perforated panels, and you should always consult with a fabrication specialist before implementing anything.


How does bad weather impact UK public serotonin levels?

We all know the weather in the UK is a big topic of conversation at all times of the year, and it’s often what we are known for in the broader international community (everyone associates the UK with rain!) but how could the general weather pattern impact the public’s mental health, and general attitudes towards each other and life in general?

Let’s find out below.

Mood, The Weather and Serotonin

Bad weather is no joke when it comes to mood, and is proven to actually make people feel depressed! There is even an official medical condition known as “winter depression” which describes how people’s mood can be worse in the winter time.

However the effects of this alter greatly between each person, which is why there isn’t a countrywide diagnosis of this condition.

The science behind this is to do with your central nervous system, and more specifically the neurotransmitter called “serotonin”. This is known to be a mood regulator, and people with low serotonin levels often find it trouble sleeping, and are more likely to suffer from depression.

How to combat this? Take Supplements or Change Diet

The best way to tackle this issue proactively is to up your serononin production. Now technically you aren’t going to be upping the level by ingesting it, moreover you will be taking the vitamins and nutrients that promote the optimum level of serotonin from your body. This allows your system to self-regulate the amount it needs, and prevents deficiencies. You can ingest foods that contain 5-HTP which converts into serotonin, or you could take serotonin specific tablets. If you prefer chewable serotonin supplements, then you can find gummies online in many places.

Remember to monitor your mood throughout the winter, and make the dietary changes first when you feel down.

You can also boost your serotonin levels through a good diet, exercise, and positive thinking.

Follow EWI for more weather related blog posts like this.

Extreme Weather is No Match for Weatherproof Rattan Garden Furniture

One of the Coldest Springs on Record

You may remember that in the Northern counties of England, and even in some southern counties, in spring of 2018 there was extreme snow in many areas far later than seen in previous years.

This snow was apparent in some places as late as May, you can see various reports on this here, and here.

The Beast From The East

And you may have been effected by the devastation that the “beast from the east” brought to the country, with many losing power, and having furniture damaged by the extremely cold temperatures.

However some of you may have noticed that your outdoor furniture wasn’t affected by the cold, and interestingly enough this is because it is classed as all weather furniture.

Weatherproof Rattan Garden Furniture

One of the most popular types of all weather furniture is synthetic rattan, and I’ll explain how it is weatherproof below.

Weatherproof rattan garden furniture

What makes rattan weatherproof?

Aluminium – the rust buster. So if you remember your chemistry class as a child, you’ll recall that there are certain metals that go rusty, and certain metals that don’t. Well aluminium is one of those metals that doesn’t rust, and so it makes it really good to form into furniture frames to be left outside.

UV stabilization of plastics – no more sun damage. We all know about UV light, we hear it all the time about wearing sun scream, but what if your furniture could have sun cream of its own? Well that’s what these synthetic rattan strands effectively have done to them, a permanent sun cream layer applied, known as UV stabilizer, which prevents the sun from degrading the material, and provides you with something that doesn’t rot or fade.

You can browse a UK provider of rattan garden furniture here.

You can also leave comments with any questions about weatherproof rattan furniture, or any of the extreme weather we had this year.

And remember, continue to support Extreme Weather Impacts and we’ll bring you more content like this.

Welcome Update

Welcome to the new website of Extreme Weather Impacts.

Some of the historical articles that were previously used have been restored for educational purposes as I think they’re really good.

No copyright infringement intended, and if you want them to be removed (a shame, but I understand) then simply email me and I’ll try and replace them with my own work in due course.

It’s important that in periods of political unrest we don’t forget about long term causes such as the environment, as in the end all we can hope to achieve is leaving a fit world for the next generations.

All the best.