Roof Vent VMAX-201-MB for ventilation area 151 to 450 ft2
Roof Vent VMAX-201-MB for ventilation area 151 to 450 ft2
Roof Vent VMAX-201-MB for ventilation area 151 to 450 ft2
Roof Vent VMAX-201-MB for ventilation area 151 to 450 ft2

Available Colours

Regent Grey
QC-8730
VW-6082

Black
QC-8262
VW-6068

Metro Brown
QC-8228
VW-6154

White
Maximum

For Additional Colours

Roof Vent
VMAX-201-MB

Ventilation area 151 to 450 ft2

Unlike the gooseneck, the Maximum Ventilators are CSA approved. Its unique storm proof system prevents infiltrations while at the same time capturing the wind flow from all directions and at wind velocities as low as 6 km./hr. (4 mi./hr.). With this combination of technology, wind and pressure differentials, a “chimney or, vacuum effect” results in drawing the stale air and moisture out, thus preventing moisture & heat build-up within the attic space.
All in one, no need of a wood curb, this model has been designed to allow you to install the roofing membrane onto the base flashing the same way you would a wood curb. We have made an allowance for the membrane so that the neck of the ventilator will go over both the flashing and the membrane.

Ventilation Chart For Model VMAX-201

Net Ventilation Area Between Roof Deck & Insulation Roof Area That One Ventilation 201 (12" x 12") Can Ventilate
1 in. to 6inc. 201 is Not Recommended, Use Model 102
7 in. to 12 in. 151-250 ft.2
13 in. to 24 in. 251-350 ft.2
25 in. and more 351-450 ft.2

Specifications

  • Deflectors: 4
  • Net Free Evacuation: 121 in2
  • Tested Extraction Rate: 351 CFM
  • Suggested Ventilation Area: 151 to 450 ft2 (Refer to chart above)
  • Base Flashing: Flat base with insulated interior
  • Storm Proof: Unique precision engineered deflector system
  • Solid: Built of galvanized steel
  • Standard Gauge: 24 & 26
  • Rodent Proof: Built-in galvanized wire mesh screen
  • Finish: Interior and exterior powder coated polyester baked paint with UV protection
  • Compliances: CSA, CAN-3-A930M82, ASTM-527
  • Warranty: Limited Lifetime Warranty on all manufacturing defects, 5 years on paint & corrosion
  • Available Colours: Black, Brown, Grey and White

A limited selection of special colours is available at a slight premium.

Accessories

RETENTION PAN PLASTIC

Used in conjunction with the media filter. The polypropylene retention pan must be placed over the insulation to act as a second line of defense against infiltration.

EXTENSIONS

If your roof ventilator is not high enough. We have an extension from 12″ to 72″. Available Colours: Black, Brown, and Grey.

  • Special orders only. Manufacturing delays may vary depending on season.
  • Available Colours: Black, brown and grey.
  • Please note that we can manufacture in other sizes, metals or gauges.
  • Support Brackets are available for extensions three (3) feet and higher at a small premium.

A limited selection of special colours is available at a slight premium.

MEDIA FILTER

If snow infiltration is a problem. The Media Filter can be used in residential, commercial and industrial applications. A loss of ventilator efficiency of approximately 20% should be considered.

Documentation