Coperall TNT 21 profiled metal sheets are lined on the lower face with a nonwoven mat and are designed for roofing and cladding applications in destinations of use where condensation control is required.
Coperall TNT 21 are highly versatile metal sheets with a symmetrical profile, designed for use in pitched, curved or vaulted roofing applications as well as for wall cladding.
On curved roofs with a radius = > 20m.
Coperall TNT 21 sheets will self-centre. Overlaps of just 1 and 1/2 profile will ensure fast and cost effective installation works and will provide an excellent waterflow.
Coperall TNT 21 profiled metal sheets are designed for roofing and cladding applications, mainly for industrial destinations of use.
7% minimum gradient subject to local building regulations


| Paramètres | Dimensions | Tolérances dimensionnelles |
| Total width | 982 mm | ± 5mm |
| Cover width | 900 mm | ± 5mm |
| Length | from 200 to 14000 mm | L ≤ 3000mm ± 5mm L > 3000mm ± 10mm |
| Profile height | 21 mm | ± 2 mm |
| Span | 75 mm | ± 5mm |
| Deviation of perpendicularity | - | 0,60% |
| Test | Valeur | Norme de référence |
| Reaction to Fire | A2-s1, d0 | UNI EN 13501-1 |
| Resistance to external fire | Bʀᴏᴏғ(t3) * | UNI EN 13501-5 |
| Water vapor absorption | 578 g/m² ** (460 g/m²) *** |
- NF P 15-203-1 |
* Test performed on Coperall-TNT 40
** Value calculated per m² of profiled sheeting
*** Test value measured on flat sheeting
| Matériau | Caractéristiques géométriques de la section | Capacités de charge à charge uniforme kg/m² (compris le poids propre)* | |||||||||
| Épaisseur (mm) | Poids (kg/m²) | Jxx (cm⁴/m) | Wxx (cm³/m) | Entraxe (m) | |||||||
| 1,00 | 1,20 | 1,40 | 1,60 | 1,80 | 2,00 | 2,20 | |||||
| Aluminum | 0,6 | 2,10 | 5,04 | 4,50 | 226 | 131 | 82 | 55 | 39 | 28 | 21 |
| Aluminum | 0,7 | 2,45 | 6,05 | 5,49 | 271 | 157 | 99 | 66 | 47 | 34 | 25 |
| Aluminum | 0,8 | 2,81 | 7,05 | 6,47 | 316 | 183 | 115 | 77 | 54 | 40 | 30 |
| Aluminum | 1,0 | 3,51 | 8,72 | 7,93 | 391 | 226 | 142 | 95 | 67 | 49 | 37 |
| Entraxe (m) | |||||||||||
| 1,20 | 1,25 | 1,50 | 1,75 | 2,00 | 2,25 | 2,50 | |||||
| Coated steel Aluzinc Stainless steel |
0,5 | 5,08 | 4,49 | 4,17 | 603 | 309 | 179 | 113 | 75 | 53 | 39 |
| Coated steel Aluzinc Stainless steel |
0,6 | 6,09 | 5,35 | 4,96 | 720 | 368 | 213 | 134 | 90 | 63 | 46 |
| Coated steel Aluzinc Stainless steel |
0,7 | 7,11 | 6,21 | 5,72 | 835 | 427 | 247 | 156 | 104 | 73 | 53 |
| Coated steel Aluzinc Stainless steel |
0,8 | 8,13 | 7,05 | 6,47 | 949 | 486 | 281 | 177 | 119 | 83 | 61 |
| Coated steel Aluzinc Stainless steel |
1,0 | 9,99 | 8,93 | 8,36 | 1128 | 570 | 332 | 215 | 148 | 96 | 70 |
| Copper | 0,6 | 6,91 | 5,35 | 4,96 | 426 | 218 | 126 | 79 | 53 | 37 | 27 |
| Copper | 0,8 | 9,21 | 7,05 | 6,47 | 561 | 287 | 166 | 105 | 70 | 49 | 36 |
N.B. Listed values are indicative and as tested in our laboratory. Static calculations are the responsibility of the Designer / Main Contractor.
* Calculated with a deflection value ≤ 1/200 L
