Sandrinimetalli Sand20 Corrugated Metal Sheet

Mon Jan 01, 2024Waterproofing MaterialsConstructionSteel

Sand20 Corrugated Metal Sheet

SAND20 CORRUGATED METAL SHEET

Walkable, resistant, and elegant.

SAND 20 is one of the most versatile corrugated sheets of the whole range. The multi-corrugated section with a narrow interaxis makes this profile walkable and particularly resistant, as well as self-centering* in the case of half-round roofing.

The reduced height of the corrugated profile makes this product ideal for the realisation of over-coverings where it is important to limit the height of the covering package.When used in the wall, for the realisation of a ventilated facade, the particular shape of the trapezoidal fret gives a marked and at the same time elegant aspect.

Our production facilities allow us to produce SAND 20 in three different useful widths: 750 mm, 900 mm or 975 mm in the case of installation with wall overlap (minimising the incidence of overlap) and 1125 mm (L1, L2, L3). Metal sheets are produced in precision lengths, according to specific customer requirements.

Thanks to the possibility of producing SAND 20 with a useful width of 1125 mm (L3), the incidence of overlap is reduced to 7.73%, thus allowing a considerable economic saving for the installer.

The possible bending processes are: fixed radius bending, variable radius bending, shed bending.The following applications are available on the internal side: non-woven fabric SANDnodrip with anti-condensation function, or non-woven fabric SANDcontrol with anti-noise and anti-condensation function.

INFORMATION

BRAND

Sandrinimetalli

COLLECTION

Sand28

USE

Roofing

PRODUCT TYPE

Metal

SANDNODRIP - ANTI-CONDENSATION CLOTH

-SANDnodrip is a special non-woven fabric cloth chemically bonding specific elements that create a highly porous surface with excellent moisture absorption properties. -These characteristics prevent the roof from dripping, thanks to polyester fibres and microbeads in the felt that absorb and collect the forming condensation. -SANDnodrip corrugated metal sheets are characterised by a fire resistance class A2-s1, d0.

TECHNICAL INFORMATION ABOUT SANDNODRIP:

- Material = TNT 100% polyester fibre
- Nominal thickness = < 1 mm
- Colour = grey
- Fire resistance class = A2 - s1, d0

The TESTS performed on the products are:

↓ Fire resistance test
↓ Rain-induced noise test

SANDCONTROL - ANTI-NOISE AND ANTI-CONDENSATION CLOTH

-SANDcontrol is a special non-woven cloth with inc
ly designed to offer excellent performance in absorbing any condensation that may form. -The reduced thickness allows you to carry out interventions, even in case of recovery or renovation, without raising the roof package. -The corrugated sheets with SANDcontrol application are characterised by fire resistance class C-s1, d0.

TECHNICAL INFORMATION OF SANDCONTROL:

- Material: TNT 100% polyester fiber
- Nominal thickness = 2-3mm
- Nominal thickness= 200 g/m²
- Color = Grey
- Fire resistance class = C - s1, d0

The TESTS performed on the products are:

↓ Fire resistance test
↓ Rain-induced noise test

TECHNICAL DRAWING

PROCESSING

MAXIFOLD

For a shed-type structure

This process, performed on a bending machine with a special shaped die, produces a single transversal fold on the trapezoidal sheet with an angle greater than or equal to 87°.

All the deformations generated are contained and controlled by the special conformation of the mold, so as to make the finished products perfectly suitable, equal and coupled together in the various lateral and longitudinal overlaps. A special notching of the material in correspondence of the lateral overlap of the bent area makes the overlap itself easy, avoiding passages and infiltrations of meteoric water.

The corrugated sheets obtained this way are mainly used in the realisation of shed or mini-shed roofing where the angular conformation obtained eliminates the application of the connection sheet metal to the ridge.

Processing available on the following profiles:
- SAND 20
- SAND 28

TECHNICAL SPECIFICATIONS

-Minimum achievable angle = 87°
-Side length H = min. 200 mm
-Side length L = variable, standard max 4000 mm

NOTCHING

For variable bendings

Bending takes place by means of a series of transversal impressions to the trapezoidal sheet (notches) that produce a series of bends with constant/variable pitch.

-The notches are designed and executed to allow a correct absorption of the material stresses due to deformation, without loss of rigidity of the trapezoidal element. The succession, the angular incidence and the pitch of the notches determine the value of the bending radius, which can be constant for the entire length of the sheet or with a variable value in the various sections of the same length. -Notching can be concentrated on one or more parts of the length, giving rise to particular shapes mixed curved/straight or with irregular bending. -The curved slabs obtained in this way are mainly used in the creation of roofs with regular or irregular curved section, cusp section, with "Y beams", etc.

Processing available on the following profiles:

- SAND 20
- SAND 28
- SAND 35
- SAND38
- SAND 40/200
- SAND 40/250
- SAND A55 P600

Constant/variable radius:

-On request from mm 300 on sand 20 and sand 28 profiles -On request from mm 400 on sand 35, sand38, sand 40/200 - sand 40/250 profiles

TECHNICAL SPECIFICATIONS

- Footprint pitch = variable
- Length = min. 300 mm
- Bending radius = min. 500 mm

CALENDERING

For fixed radius bending

Micro impression calendering is a bending process that allows a controlled deformation of trapezoidal sheet metal until the desired radius of bending is obtained. Constant radius curved sheets are mainly used in the creation of curved roofing (on metal structures, prefabricated Y-shaped tiles, etc.).