Brass Mesh Vents

Sub-floor ventilation plays a key role in keeping mould and mildew out of your home.

Why we choose Brash Mesh Vents...

Many more times the ventilation than standard terracotta brick vents
Due to high flow rates less can be used to achieve better results
11 standard colours to allow a better match to existing brick or block walls
Enhances the overall design and appearance of the building
5 different sizes to allow ventilation in most applications
Brass mesh used which is corrosion resistant
No maintenance costs once installed
Save on costly repair bills in the future
No power costs
No noisy fans

Prevention, Cure or Reduction of...

The growth of fungi and mould
Timber decay and musty smells
Cupping of floor boards
Lifting of lino and lino tiles
An accumulation of dampness
The risk of termite attack, as they are most active in moist environments
Pest infestations such as spiders and other nasties

Colours


Salmon	Apricot	Brown	Light Brown	Sandstone	Cream


White	Grey	Black	Terracotta	Red

Vent Sizes
	1 brick in size 9 x 3 [ 230 x 75mm ]
	2 bricks high 9 x 6 [ 230 x 160mm ]
	2 bricks long 18 x 3 [ 455 x 75mm ]
	2 x 2 bricks high long 18 x 6 [ 455 x 160mm ]
	1 x concrete block in size 15½ x 7½ [ 390 x 190mm ]
Available for self install or installation by our qualified tradesmen.

Vent Spacing Requirements

The table below states the facts about sub-floor ventilation in accordance with the Australian Building Code Part 3.4.1 which sets out recommendations for sub-floor ventilation in three climate zones with each zone being graded according to the relative humidity (RH) likely to be encountered in each location. Please note that in problem areas, where the ground or sub-floor space is excessively damp the Code recommends ventilation must be increased by 50%.

Zone 3: 9am RH > 70% and 3pm RH > 40%
Zone 2: 9am RH > 60% and 3pm RH > 40%
Zone 1: 9am RH < 60%

Vent Size	Ventilated Area (sq mm)	Zone 1 Central Australia (2,000 sqmm/mtr)	Zone 2 Inland of Coastal Ranges (4,000 sqmm/mtr)	Zone 3 Coastal Areas (6,000 sqmm/mtr)
18x6 (455x160mm)	23,800	11.9m	6m	4m
9x6 (230x160mm)	13,400	6.7m	3.4m	2.2m
9x3 (230x75mm)	5,100	2.6m	1.3m	0.85m
18x3 (455x75mm)	11,300	5.7m	2.8m	1.9m
15x7 (390x190mm)	23,700	11.9m	5.9m	4.0m
12.8 (300x200mm)	18,500	9.3m	4.6m	3.1m
Comparison Only Terracotta Brick Vent (230x150)	3,375	1/7m	0.8m	0.6m

Spark Arresting Vent

A new mesh vent is available to meet the requirements of some councils in areas prone to bush fires.

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