Insulated roofing sheets

Details to remember when insulating roofs at rafter level

Peter Wragge Supplies has years of experience and always helps clients to choose the right goods. The speciality here is sheeting, whether it is for roofs or walls. Our collection includes insulated roofing sheets as well as many other styles. Everything here is of the highest quality and can be yours for some of the most reasonable prices on the market.

Re-covering roofs

In many scenarios, property owners need to re-cover over half of the surface of their current roof. It is here where you must make a Building Regulations application. Not to mention, the Regulations demand that you insulate your roof as part of the efforts.

When there is a room within the roof, insulating at the rafter level can prove to be very tough. The danger here is the chance of you creating condensation. This results in mould and will harm the structure’s fabric soon enough.

Positioning the insulation

Something that is equally as vital is where you place your insulation. While at the rafter level, you may need to raise your roof line. You need to do so by using counter battens and insulating sarking boards.

One thing to note here however is raising the roof causes technical and visual issues. These are not restricted to listed and historic constructs either. If your project is focusing on semi-detached or social housing, it might not be possible for you to raise the roofline.

There is a detail you may not be aware of though. It is that particular insulating breather membranes permit you to improve the insulation. In addition, you can manage the condensation. This is all without a change to the roofline. Better still, you can realise this without ruining the interior. Contact us if you require insulated roofing sheets for your project.

Considerations to make

You will want to consider several points for situations like these as well. For one thing, rafter depth could restrict the amount of insulation you can install. Moreover, it might not be possible or practical to place extra insulation on the underside.

In scenarios where the rafters are shallow, you can accommodate a limited degree of insulation. By shallow, we mean less than 75mm.

If you have a plaster and lath ceiling, forcing your insulation into the rafter space could disfigure it.

Vapour resistance

Another fact is that the capacity of the breather membranes to separate moisture from your roof depends on the ceiling’s vapour resistance. The majority of present day ceilings don’t have a layer specifically for vapour control. As a result, you should check to see whether you need a ventilated void.

A great source of insulated roofing sheets

At Peter Wragge Supplies, we are always looking to help those in need of products like our insulated roofing sheets. Our range of options is comprehensive. If that wasn’t enough, we also go to great lengths to ensure they meet today’s building regulations.

If there is anything we can do for you, please let us know.

The many ways you can use aluminium sheets

Metal sheets

We are a business that strives to offer customers a wide array of high quality building products. This includes useful metal sheets that are great for many applications, including roofing, cladding and more. In addition, you can use them in the domestic, agricultural, and industrial sectors.

One of the metal sheets you can find is the aluminium variant. It is very popular because of the number of benefits it offers. In most cases the sheeting is light and very thin. At the same time, each sheet is robust, strong and durable. In addition the metal has very high corrosion resistance so it is a great alternative to steel. If that wasn’t enough, aluminium sheets are easy to install and maintain.


The uses for aluminium sheets are very broad. There are so many in fact that it is hard to produce a comprehensive list of them. However, we intend to go over some of the most common ones here. Read on to find out more.


We will begin with the most obvious one, which is roofing. Aluminium roof sheets are very popular. This is due to the sturdy and lightweight elements as well as the anti-corrosion ones. Artistic ceilings also make the list. Composite or dibond sheets typically find use as large tiles or interior ceiling panels.


Up next, we have balconies. We see aluminium balcony balustrades and railings all the time. Again, we have the lightweight and strong properties to thank for this. The waterproof attributes also aid a great deal.

Food containers

There are lots of uses for aluminium sheets in the food industry. In addition to sealed food containers like cans, you can find beer kegs made from the sheeting. Users prize the material for the impermeable, non-tainting, and non-reactive qualities. The containers are also reusable.

Cable sheathings

Another use for the metal sheets is cable sheathing. Metal sheaths for cabling is something you form using extremely thin aluminium sheets and foils. People do this because of the corrosion resistance. Not to mention, there are the good electrical and mechanical characteristics.

Cladding and fascia panels

The final uses we will talk about are cladding and fascia panels. Aluminium composite sheeting is the preferential choice for insulation and cladding. This is the case for domestic, industrial, and commercial buildings. It is not surprising when you think about all of its great characteristics.

Purchase metal sheets today

At Peter Wragge Supplies, we have a huge collection of aluminium and steel sheets in stock. They come in roughly 20 colours. In addition, there are a number of coatings to choose from. This includes plastic and plain galvanised.

If you would like more info about our metal sheets, you are welcome to contact us. We can cater for large and small orders, offering fast delivery and lots of useful tips.

Waterside Apartments

Peter Wragge Supplies are delighted to be involved in the supply of 147mm Kingzip Standing Seam with Aluminium Stucco Embossed external weather sheet for this superb development built by Building Refurbishments and Civils. Powder coated aluminium flashings complete the look.

The positives of using structural insulated panels

Insulated panels

You may have been having trouble keeping the temperature up or down in a building. If this is the case, chances are it has something to do with your insulation. We can help you rectify this by offering you the highest quality insulated panels in the country. Our business has a comprehensive range of systems so we can cater for any structure.

Where you use the structural insulated design

This type of panel is very common in domestic projects. However, their involvement with exterior cladding set ups isn’t understood that well. When you use them in these arrangements, you are free to use the SIPs in a building’s structural frame. You can fix them to the outside of one too. They supply users with decent thermal capabilities. This is essential to following Part L of the Building Regulations in Wales and England. It is the same for Section 6 in Scotland. There are also many other advantages to speak of here.

Insulation core

SIPs normally include a rigid high calibre insulation core. This is between a couple of layers. The core might include several materials like expanded polystyrene foam or urethane. Another option is extruded polystyrene foam. Usually, the outer layers are oriented stranded board. However, they can be cement, metal, or plywood as well.

In certain cases, the panels could be autohesively bonded. What this means is that the insulation foam is in the middle of the layers. Another option is to create the layers separately and then bond them.

Energy efficiency

Something else you need to know about SIPs is they can help create high energy-efficient buildings. It is possible for them to obtain whole wall U-values reaching 0.20W/m2K. Some values end up being higher. This is because they are typically connected using factory-engineered joining apparatus. This guarantees high airtight levels. They can also reach leakage levels far lower than the limit in the Building Regulations. If you need insulated panels that are highly energy efficient, give us a call.

Structural composites

Moreover, SIPs are structural composites. They offer you predictable responses to applied loads. Other provisions include strength and stiffness. We assemble the panels and cut them to size before delivery. This reduces on-site defects and waste. Users need fewer materials to meet the energy performance standards too. There shall also be fewer deliveries to the site, resulting in lower transport pollution and noise.

Weight saving

Finally, the panels are lightweight in nature. You also have the option of using mast climbers to install them. In the majority of cases, this means there is no need for scaffolding. Using SIPs can also reduce the involvement of wet trades like bricklaying. There is less of a requirement for complex rainscreen rail-fixing systems as well.

Get in touch with us to talk about insulated panels

At Peter Wragge Supplies, we are proud to be able to supply first rate insulated panels. There is more to our company than just this though. We teach clients how to use their new purchases too.

If you would like to find out more, feel free to contact us.

Things to remember when installing corrugated roofing

Corrugated roofing

We are a business that has been very successful in the last three decades. Our job has been to provide top quality roofing and cladding products to clients. Because of recommendations and our excellent customer service, people keep coming back. They may want our corrugated roofing merchandise or something else. Whatever their needs are, we are able to meet them.

A common sight

Corrugated roofs are very common because they can suit various needs. For example they are great for the likes of lean-to extensions, porches, carports, garages, and sheds. Countless individuals also employ them as cost effective substitutes to uPVC cladding. What we will be doing here is discussing the installation process and what you must remember.

Installation must be done correctly

Proper installation is essential for the right function of your corrugated metal roofing. It is also important for its visual appearance.

In recent years, this type of roofing has grown in popularity. This is for residential, commercial, and industrial uses. That being said, installation isn’t a walk in the park. Anyone who struggles can use the following tips to help them. Those who still need corrugated roofing can contact us.

Preparation is key

Firstly, we will discuss how you prepare the roof. You install the panels straight onto your roof’s plywood sheathing. It is critical for you to cover this sheathing using regular roofing felt paper. Do this prior to positioning the panels. This shall assist you in weatherproofing your roof. Extend your roofing felt paper by around 2 or 3 inches too. Do this all over the roof’s perimeter. To secure the paper onto your sheathing, use galvanised staples.

Positioning your panels

Another detail that is crucial is the position of your corrugated roofing panels. It will help if you draw chalk lines over the roof where you are going to install them. This shall act as a guide to guarantee that you place them straight.

Start the panel installation at the bottom of your roof. Install the initial row so it lets them overhang the roof by about 2 or 4 inches. What this does is divert water run-off and send it away from your roof boards.

Work your way towards the roof ridge steadily. As you position the upper panel over the one that lies below, overlap by an inch. Additionally, you’ll have to overlap every adjacent panel by the first entire ridge.


The next thing we want to talk about is nailing. Ensure that you use nails of a material that matches your panels. If you have metals with separate attributes close to each other, there can be nasty reactions. For example it may cause the panels to corrode faster. This will harm the look of the roof and also means additional maintenance work for you.

It is preferable to use 3 inch galvanised nails that come with washers. This aids users in stopping water from accumulating on the roof. Place your nails along the hump of every panel layer.

Purchase our corrugated roofing sheets

At Peter Wragge Supplies, we make sure our products are always suitable for the job. To accomplish this, we ask the customer what it is they need from their goods. We then suggest the right products, including fixings.

If you require our corrugated roofing solutions or something else, please get in touch with us. We can discuss any project with you.

Industrial Warehouse

Peter Wragge Supplies Ltd are pleased to be involved in the cladding of the first of two buildings to be constructed as part of a new industrial estate in Essex.

Supplying Trisomet 120mm panels for the roof in HPS200 Ultra Merlin Grey

and Trisomet 80mm insulated panels for the walls HPS200 Ultra in Albatross.

With the look drawn together and finished with Merlin Grey Trimline Gutters and flashings and incorporating 90mm Trimapanel in Merlin Grey HPS200 coating.

Why are corrugated roofs so popular?

corrugated sheets

Peter Wragge Supplies is a successful business that aims to satisfy customers by offering an assortment of quality roofing products. The collection we have includes fibre cement, aluminium, and steel corrugated sheets, and more. Every type of sheeting we offer is durable so you can expect a long life. You can also rely on us to deliver them to nearly every location in the country.

For various homeowners, corrugated steel roofing sheets are a popular choice. A number of people choose to switch to them because of the advantages they provide. Once you read a bit more about them, you might discover that they are better for you too.

A quiet sheet that removes water build-up

To begin with, the sheets are quiet and can remove water build-up. It is always preferable to build this form of roofing on a slope so that water can run downwards. This will lead it safely away from your home.

Certain homeowners may hesitate to install the sheets. This is because they believe it shall boost the sound created by the rain. This isn’t the case however. There is zero sound difference between contemporary metal roofing sheets and standard clay tile or shingle roofs.

Long lasting

Because they are metal, it is no surprise that these sheets last. A roof of corrugated aluminium or steel sheeting will last for years. In many instances, they can serve their owners for over a hundred years. More importantly, over time you won’t have to do much maintenance either. It is very minimal if you think about it. You might need to give it a coat of paint but that won’t take a lot of time or effort.

Lightweight and tough

Another positive of these sheets is they are tough and lightweight at the same time. Corrugated roofs are incredibly light, durable, and flexible. This is why countless property owners prefer to use them. Due to their low weight, the sheeting is relatively easy to install and handle. This also means it doesn’t place any unnecessary pressure on the structure of your building.

Corrugated sheets can handle the weather

The sheets are capable of enduring unfavourable weather conditions as well. In fact, they can survive in all conditions. Expect them to cope well with torrential rain, hailstorms, thunderstorms, and frost. When you install them correctly, they shall offer you shelter and a protective barrier. There is another added benefit of it not rusting too.

Rot proofing

Last but not least, corrugated metal roofs don’t rot. It is a different story for other roofing materials. After you install the sheeting, it will look just like new for years to come. The majority of these metals have a protective chemical coating that prevents algae from forming.

Get in touch with us

At Peter Wragge Supplies, you can count on us to supply any quantity of corrugated sheets. In addition, we have a complete collection of mastics, fillers, and fixings for all your applications.

If you want to learn more about our products, feel free to contact us. You can also browse our website for lots of info.

If you need a roof replacement use box profile sheets

box profile sheets

We are a company that has built a name for itself by supplying a wide array of high quality building products. This includes steel box profile sheets, as well as other designs. In addition, we sell accessories that go together with our merchandise. Regardless of your reasons for needing them, you will find that our goods serve you well.

An alternative option

Box profile roof sheets give you an alternative to the standard corrugated steel roofing options. They are very lightweight and economical. However, even though they are low cost, the sheeting is durable and will last. Moreover, it is easy to install them. As a result, the job will only take a short amount of time.

Better drainage

Box profile sheeting is one of the most effective options in terms of drainage. The shape can allow water to drain away effectively, making them much better for wet areas. It is also more beneficial to install a roof that comes with concealed gutters. This is because it shall provide you with a superior drainage set up and a neater presentation.

The ideal investment

When you replace a roof you want your investment to last. One thing you don’t want is to find that the new materials will need replacing within a few years. Steel sheeting is perfect here. If you have concerns about corrosion you can choose sheets that have a protective coating. It is easy to find products that have been galvanised with zinc. You can also find options that have been painted to protect them.

When it comes to upfront, installation, maintenance, and replacement costs, box profile sheeting is the perfect choice. It is superior to many other options and also looks great.

The easy way to order box profile sheets

At Peter Wragge Supplies, we have our steel and aluminium sheeting available in around 20 colours. You can also choose from a myriad of coatings, including plastic and plain galvanised options. In addition, we can offer advice if you need to replace a roof.

If you would like to discover more about our box profile sheets, feel free to contact us. In addition, you can browse our website and find lots of useful info.