Dayus Exterior 1 and 2 inch Louvers

· Extruded aluminum blades designed for high efficiency
· Aluminum extruded supports hidden behind for a continuous clean appearance. 
· Aluminum extruded frame with mechanically locked corners
· Available on 1" increments as standard
· Custom sizes available but extra charge may apply
· Bird screen included as standard. Insect screen optional.
· Available in Mill as standard. Durable powdercoat painted White, Silver or Brown finishes are also available.

Any available size in 3 days! Call us at 877-711-4822 if you do not see the size you need listed.

Dayus Grilles
(click on picture for a larger view or specs)

Click here to download the grille cut-sheet (info sheet).
LIST* Width:
LIST* Height: Please select WIDTH above first

*NOTE: The LIST width and height are the size of the OPENING.
Finish:      Dayus Color Chart

**MILL Finish is raw unfinished aluminum and will have scratches/scuffs/imperfections from the manufacturing process.
Production: Standard Production (3-4 Weeks - Least Expensive)
Friday Next Production (Not this Friday, but next Friday. Order must be placed before 1 pm PST Thursday)
3-Day Express Production - NOT available for BLACK or BROWN finish

Bug Screen: Standard Bird Screen Only
Optional Bug Screen

Model Number:
Total Price (each): $ 0.00
Note: Dayus products are made-to-order. They are NON-RETURNABLE
         and the order cannot be cancelled once in production. The minimum
         order amount is $45 (will be reflected in the basket).

dayus louvers 
DALTL-45: 1”  depth. Horizontal blades fixed on 45 deg deflection and 3/4” spacing.


dayus louvers 
DALTL-30: 1”  depth. Horizontal blades fixed on 30 deg deflection and 3/4” spacing.


dayus louvers 
DAL2-DF:  2”  depth. Horizontal stormproof blades on 2” spacing.  Duct frame mount.


dayus louvers 
DAL2-FF:  2”  depth. Horizontal stormproof blades on 2” spacing.  Flange frame mount.


Finish Colors:

   White    Silver    Mill    Brown Black (Flat Black)

Do you have questions about the products on this page?

Click on the ? image on the left or this link to ask us your questions!
#1 Q:   Is the dayus exterior Louvers for an HRV or is it used to let fresh air in the home without having to open your windows
A:   These are general purpose louvers. They can be used for exhaust or intake air applications.

       Asked on 2019-08-11 by tt
#2 Q:   To install between 16OC studs, do I order 14 width? Is it somehow possible to install these in a larger size that would span two studs?
A:   You would indeed order 14 inch list size louvers. Most 16 inch OC bays are 14.5 inches. Due to depth of over 1 inch, it would difficult to span a stud.

       Asked on 2017-07-06 by Brian
#3 Q:   Which style has minimal obstruction against airflow (greatest open area %) for facilitating high CFM intake ?
A:   The 1 inch DALTL will have a higher % free area than the 2 inch but it will not be as effective at preventing rain from getting in. Here is the Dayus free area calculator if you want to check your size:

       Asked on 2017-04-17 by Andrew
A:   The 1 inch louver could be done this way, but there may be an uneven gap if it is not done on whole inch increments.

       Asked on 2013-10-22 by KELLYJO

why buy from us?

We're engineers passionate about home ventilation and serious about customer service – so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.

Your call is answered by qualified people who will gladly discuss your project in detail, advise you professionally and never sell you inappropriate products.