Exterior blinds
Underplaster purenit box
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Thermo isolation box for external venetian blinds is well designed construction part which brings lots of useful features. These come especially from the PURENIT material characteristics which the boxes are produced from.
Advantages
Benefits & advantages
- high thermal insulation
Purenit has a very low thermal conductivity, which significantly reduces thermal bridges in the area of the window lintel or installation area. - resistance to moisture and putrefaction
The material is stable even in a humid environment - non-absorbent, not attacked by mould, which extends its lifetime. - high strength and stability
Purenit boxes are strong enough to attach blind and roller shutter systems and other components, while maintaining dimensional stability. - easy to work with
The material can be easily cut, milled or drilled, which facilitates installation on site and adjustments as needed. - flame resistance (B2 - according to DIN 4102)
Purenit is classified as a self-extinguishing material, which increases fire safety of the structure.
Limit box dimensions
minimum box lenght D: 500 mm
maximum box width D: 6000 mm
maximum dimension A: 600 mm
maximum dimension B: 300 mm
maximum box depth C: 600 mm
Purenit boxes variations
| ISOTRA PB | ISOTRA PB-IS | ISOTRA PB-L |
|---|---|---|
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Purenit boxes variations
- If the box is longer than 3500 mm (board size) it is supplied in more pieces which need to be connected later together see boxes connection straight and angled
Variants of boxes
- Purenit insulation reveal PIO
- Polystyrene reveal SIO
- Purenit reveal PUR
Reveal limit dimensions
| Dimension A | Dimension B | Dimension C | |||
|---|---|---|---|---|---|
| Min. | Max. | Min. | Max. | Min. | Max. |
| 120 mm | 3200 mm | 150 mm | 300 mm | 60 mm | 200 mm |
THICKNESS PIR* insulation (for ISOTRA PB-IS type)
| Thickness mm | 20 | 30 | 40 | 50 | 60 |
|---|---|---|---|---|---|
| Heat resistance RD [(m2.K)/W] | 0,20 | 0,35 | 0,45 | 0,55 | 0,70 |
| Heat transmission coefficient RD [(m2.K)/W] | 2,94 | 2,04 | 1,69 | 1,45 | 1,19 |
| Diffusion resistance Sd [m] | 0,16 | 0,24 | 0,32 | 0,40 | 0,48 |
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