Get A Quote
+1 904 512-3122
Get A Quote
Sandwich Panel Three FretsOverlap Sandwich Panel Three FretsUnion detail Sandwich Panel Three FretsSandwich Panel Three Frets assembly

Sandwich Panel Three Frets

Is use on roofing areas for industrial and residencial sites. While maitaining a great resistance supplied by it´s 3 frets, this panel also provide a modern and elgant look on any type of roof.  

Type of PanelSandwich Panel 3 Frets
UsageOn roof for industrial, and residential áreas, and others.
Width1000 mm
Foam typePolyurethane (PUR) / Poly-isocyanurate (PIR)
Foam Thickness30,40,50,60,80 and 100 mm
Manufacturing periodEvery Week
StockPer request
Deliveryif in stock, immidiately
ColorsWhite and red (other colors on request)
Interior sheet colorWhite
Visible screwVisible screw
Industrial useIndustrial use
Residential useResidential use


Our roof sandwich three fret panel, is one of our lowest price panel that you could find in our catalog. It´s easy process of installation and it´s competative price, makes it a great selection when optimizing time and budget on any development proyect, wheather are industrial or residential.

In Panel Sandwich Group, we have provide our client our 3 frets panels, for more than a decade. In reference to it´s characteristics of having two metal sheets, made out of galvanize lead, and paint coated  (pre-lequered),one of it´s predominant characteristic, it is, it´s insulation foam, that is made from poly-urethane material, that has a thickness of 40kg/m3. In accordance with your development proyect, you could select from a variarity of finishes and designs from our catolog. 

The 3 ribs sandwich panel, it was mostly used on industials development, but now a days this insulated ribbed panel has extand it´s usage to residential areas such as: garden, garage, residential roofing, etc. Furthermore, our variarity of insulation thickness that comes with ranges from 30 to 100 mm, has make it ideal for residential developments. You could contact one of our sales executives in United States, they could advise you which foam thickness is ideal for your proyect.

It´s simpicity of installation has made our 3 frets sandwich panel one of the most popular and bought panel on the U.S. market. The last fret of the 3 frets panel is empty, this allows a perfect match with the geometry of the next panel creating an overlap guidence system, makes it easy and fast to install. Once it´s screwed and in place, it´s overlap system helps to protect the insulation foam, from any bad climate conditions. It´s installation could be done on any type of surface, since it comes with screws and guidence screw holes, that makes it easy to install on surfaces such as wood, concrete and metalic frames. 

  • It´s exceptional installation system and it´s low price help to reduce by half on big proyect developments, time and cost.
  • It´s most popular colors that are chosen by our clients on our 3 fret panel sindwich are:  White Pirineo (Snow White) RAL 1006, Red Tile RAL 7001 and Green Navarra (Army Green),Azul Lago (Blue dark) RAL 4000, Silver Metallic RAL 9006, Crema Bidasoa (cream) RAL 2002 and much more.

Technical Information

Main characteristics of Sandwich Panel Three Frets

Metal Sheet Thickness30,40,50 and 60 mm ( 2 mm)
Foam density ratio40 kg/m3 (2 kg/m3)
Useful width1000 mm (2 mm)
Cut-angle0 mm (0.006*w nominal width)
Straightness0 mm (1 mm/m max 5 mm)
Shrinkage or downturn0 mm (2 mm/m max 10 mm)
Standar bundle of panels comes in10 / 9 / 8 units
Min length1000 mm ( 5 mm)
Max length16 000 mm (19 mm) truck delivery comfirmation
Fireproof PUR-UNE 13501-1B-S3-D0 (30 mm) / C-S3-D0 (>30 mm)
Fireproof PIR-UNE 13501-1B-S2-D0

*The values shown are approximate. For more information, please contact our sales representatives.

The values on our data sheet are obtain in differents test on the 3 frets sandwich panel. It depends on the type of thickness of the foam, and steel sheet, some changes could be expected.

Thermal Insulation and weight

Panel Thickness
Thermal transmission
(coeficient on K over W/m2k)
30 0.689.88 
40 0.539.88 
50 0.439.88 
60 0.369.88 

*The values shown are approximate. For more information, please contact our sales representatives.

The panel´s weight is according to the steel sheet plate 0,5/0,5 mm. On our 3 frets sandwich panel are manufacture on 4 different thinckness of foam. Base on the poly-urethane material it´s capacity of thermal insulation is outstanding. It´s coefecient on the insulation values are equal or greater on the above result shown here on the data sheet.

Panel´s weight resistance according to distance


*The values shown are approximate. For more information, please contact our sales representatives.

The above table was base on a 3 frets sandwich panel, that had a characteristc of steel sheet thickness 0,5/0,5, foam thickness 50 mm and two support points. The values are the mínimum standadrs with accordance to a specific mount point. This mount points are the common standards base on installation, and movement when manipulating the product for instalment. For more information over it´s resistance and basic information on how to install the panel, please request it from one of our sales executives.


The 3 Frets Panel Sandwich for roofing is the most inexpensive panel. This is manufacture by two sheet metal laquered on galvanized lead that protects the insulated foam that is in between. The foam is made of poly-urethane material, which is injected on a 40 kg per m3. Due to it´s valuable properties the two sheets metal , and thermatic insulation foam, it gives a very well protections to any roof, from water filtration and climate changes. The 3 fret sandwich panel, is easy to repair and has low cost maintance for a last long durability.

At Panel Sandwich Group, we manufacture steel sheet metals of different thickness (contact one of our american sales executives),accoding to the need and uniqueness of our client´s proyect. Our 3 Ribs Sandwich Panel comes on different thickness, these are:  30, 40, 50, and 60 mm., that have a very long durability, incase your proyect requieres a thicker sheet, we could manufacture up to 100 mm, but  this needs to be consulted base on proyect especifications.

The installation of our 3 Frets Sandwich Panel is very simple. It´s pre define hole screws, screws, washers and neoprene, that stops any water filtration. This panel provides a better insulation foam than other materials. For example, a 3 Rib Sandwich Panel with a foam core of 30 mm has a similar insulation than a 60 cm concrete frame.

The 3 Fret Sandwich Panel, due to it´s strong outline and frets, can support structures with any danger of damage to it´s surface, this depends on the type of frame that the panel it´s being set on. Support depend according to the distance of the frames and the type of frames.  The frets on our 3 fret panels offer great protection on drastic climate such as havy snowing, strong winds and havy rain.

The 3 Frets Sandwich Panel, that is manufacture by Panel Sandwich Group, has a fireproof value, categorized as C S3 D0 / B S2 D0, with an insulated foam made of poly-urathane.  Our panels are certify and comply with the anti-fire regulations policies updated, and stablish by Spain, and the European goverment.

Datasheets Sandwich Panel Three Frets




Sandwich Panel Three Frets excellent resistanceSandwich Panel Three Frets exterior installationSandwich Panel Three Frets with an aesthetic finishSandwich Panel Three Frets for residential useSandwich Panel Three Frets with matching finishingsSandwich Panel Three Frets with a wide variety colorsSandwich Panel Three Frets with great isolationSandwich Panel Three Frets with an excellent performance over time

More About Sandwich Panel Three Frets

How to choose the thickness of your Sandwich Panel?

The magnificent performance of the Sandwich Panel has been a revolution in the construction sector. Among them, its insulation capacity stands out. Discover in this post which are the types of insulating materials we work with, in which panels they are found and much more.