Coating the inside of exterior walls is one of the most practical and efficient ways to recover existing buildings, or as a root solution for new projects. Which system to recommend depends on the conditions of the wall and on the intended insulation.
Gyptec boards (simple or insulated) can be directly glued with GA adhesive glue, or applied with a metal support structure.
Application with profiles:
An auxiliary wall-mounted or freestanding structure can be used. Cover the ‘U’ Studs with acoustic tape and secure them to the floor and ceiling. Make sure they are aligned. Do likewise with the side ‘C’ Studs. Fit the intermediate ‘C’ Studs with the recommended spacing (400 or 600 mm). Attach the boards to the profiles.
Direct application with GA glue:
Apply the glue points 40 cm away from each other, while reinforcing the perimeter of each board. The glue can be applied directly onto the board or to the wall.
Attach the board to the wall, keeping it 1 cm away from the floor with the use of shims, to ensure that there is no contact with moisture. After placing them on the wall, press the panels to ensure good adhesion to the substrate, making sure the surface is flat and straight with a ruler. Remove the shims after drying.
Examples of systems:
GREV 73/600 [2x13A+48] MW
Solution for interior wall lining, comprising a self-supporting structure with ‘U’ Stud 48 metal profiles and ‘C’ Stud 48 metal profiles, spaced every 600 mm, to which 2 layers of Gyptec BA13A (STANDARD) plasterboards are fixed. Volcalis mineral wool in the air cavity. Fillers, joint taping and fixing accessories. Surfaces ready for final painted or decorative finish.
| Thickness | 73 mm |
| Maximum height * | 2,50 meters |
| Weight per m² | 18,50 kg/m² |
* distance between reinforcements or connections
| Acoustic Insulation | Fire Resistance |
Δ Rw = 20 dB Itecons reference test ACU 303/12 | EI 30 TECNALIA reference test 089777-003 |
GREV 83 [13A+40 ICB+Omega]
Solution for interior wall lining comprising OMEGA 33 metal profiles fixed directly to the wall, spaced every 600 mm, to which 1 layer of ICB 13-40 Composite plasterboards (GYPCORK) is fixed. Fillers, joint taping and fixing accessories. Surfaces ready for final painted or decorative finish.
| Thickness | 83 mm |
| Maximum height * | 9,00 meters |
| Weight per m² | 13,50 kg/m² |
* distance between reinforcements or connections
| Acoustic Insulation | Fire Resistance |
Δ Rw = 9 dB Itecons reference test ACU 300/12 | EI N/A |
GREV 25 [15H+GA]
Solution for interior wall lining consisting of 1 layer of Gyptec BA15H (Hydrophobic) plasterboards glued directly to the face of the wall. Fillers, joint taping and fixing accessories. Surfaces ready for final painted or decorative finish.
| Thickness | 25 mm |
| Maximum height * | 5,00 meters |
| Weight per m² | 15,00 kg/m² |
* distance between reinforcements or connections
| Acoustic Insulation | Fire Resistance |
Δ Rw = N/A dB | EI N/A |
GREV 63/600 [15H+48] MW
Solution for interior wall lining comprising a self-supporting structure with ‘U’ Stud 48 metal profiles and ‘C’ Stud 48 metal profiles, spaced every 600 mm, to which 1 layer of Gyptec BA15H (Hydrophobic) plasterboards is fixed. Mineral Wool in the air cavity. Fillers, joint taping and fixing accessories. Surfaces ready for final painted or decorative finish.
| Thickness | 63 mm |
| Maximum height * | 2,10 meters |
| Weight per m² | 13,60 kg/m² |
* distance between reinforcements or connections
| Acoustic Insulation | Fire Resistance |
Δ Rw = 18 dB Itecons reference test ACU 319/12 | EI N/A |
GREV 100/600 [2x15F+70] MW
Solution for interior wall lining comprising a self-supporting structure with ‘U’ Stud 70 metal profiles and ‘C’ Stud 70 metal profiles, spaced every 600 mm, to which two layers of Gyptec BA15F (FIRE-RESISTANT) plasterboards are fixed. Mineral wool in the air cavity. Fillers, joint taping and fixing accessories. Surfaces ready for final painted or decorative finish.
| Thickness | 100 mm |
| Maximum height * | 3,20 meters |
| Weight per m² | 27,50 kg/m² |
* distance between reinforcements or connections
| Acoustic Insulation | Fire Resistance |
Δ Rw = 21 dB Itecons reference test ACU 320/12 | EI 60 TECNALIA reference test 077279-002 |
GREV 78/400 [2x15Gold+48] MW45
Solution for interior wall lining comprising a self-supporting structure with ‘U’ Stud 48 metal profiles and ‘C’ Stud 48 metal profiles, spaced every 400 mm, to which two layers of Gyptec BA15Gold (Gold) plasterboards are fixed. Volcalis mineral wool in the air cavity. Fillers, joint taping and fixing accessories. Surfaces ready for final painted or decorative finish.
| Thickness | 78 mm |
| Maximum height * | 2,75 meters |
| Weight per m² | 30,18 kg/m² |
* distance between reinforcements or connections
| Acoustic Insulation | Fire Resistance |
Δ Rw = 21 dB Itecons Value by approximation ACU 320/12 | EI 60 TECNALIA Validation by extension 110298-003 |