ISVHB Inline Slate vent
Uses
- For slate roof ventilation, soil vent pipes or mechanical extract ventilation (with pipe adaptor)
- For new or existing roofs.
- Suitable for roof pitches between 20° and 60°
- For use at high level or low level where the roof construction does not allow eaves or ridge vents
- Suitable for all natural and man made slate
Features & Benefits
- Can be installed as required during slating process
- Efficient, unobtrusive and easy to install
- Driving rain and deluge rain resistance
- AA fire rating to BS476:Part3:2004
- Integral 4mm insect screen
- Colour blending available if required
- Complies with current Building Regulations; BS5250 & BS5534, ICP2
Installation
- Cut batten as shown (280mm) between rafters
- Cut the two slates directly below the ventilator. 250mm slates—2x125 wide cut outs, 300mm slates—2x135 wide cut outs. Also provide additional fixing holes in each cut slate
- Cut the underlay to receive the throat of the vent. Cut as diagram folding back the underlay as shown.
- Fix extra batten above the cut batten as shown
- Cut a 340mm long slot in the underlay to accept the underlay protector which should pass under the extra batten and into the slot
- Neatly trim the slate above the ventilator to clear the grille.
- Continue slating as normal.
Specifications
| Free Area | 10,000mm² per vent |
| Size | 600x300mm |
| Material | Manufactured from ABS & VO fire retardant material |
| Colour | Blue/Black. Colour blending available if required |
| Code | ISVHB |
| Suggested spacing | 5000mm²/m = 2.0m, 10 000mm²/m = 1.0m, 25 000mm²/m = 0.4m |
| Airflow resistance when used as SVP | 54m³/hr (15 lt/sec) 10Pa, 108m³/hr (30lt/sec) 42Pa, 216m³/hr (60lt/sec) 162Pa |
