Efficient and durable primary roof ventilator supplied in convenient 1m lengths.
An over fascia vent is used when the fascia board is fitted in the ends of the rafters, creating a situation where ventilation can only be positioned over the top of the board.
OF1 provides ventilation equivalent to a continuous 10mm opening (10,000mm²) and is used to ventilate pitched roofs of >15° and the roof void is uninhabited loft or attic space.
OF2 provides ventilation equivalent to a continuous 25mm opening (25,000mm²) and is used to ventilate pitched roofs of
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Timloc Building Products is consulted before specifying.
|
|
||
| Product ID Number (?) | OF1BL | |
| Quantity Per Pack (?) | 25 | |
|
|
||
| Features (?) | 3.5-4mm wide ventilation slots comply with BS 5250:2011 , Durable , Easy to fit , Efficient , Resistant to decay , Supplied in convenient 1m lengths , UV stabilised and colourfast | |
| Free Airflow (?) | 10000 mm2/m | |
|
|
||
| Uniclass (?) | Pr_35_90_28 External trims and sills | |
by Timloc Buildin... 12-04-2023