Louvers

Operable Louvers

Aluminum Operable Louvers

Features

Overview

Operable Louvers put the control in the user's hands. Each blade adjusts to manage light, airflow and privacy as conditions change through the day, opening up a space when the weather is kind and closing it down when the sun, wind or rain need to be kept at bay. It's a system for projects where flexibility matters as much as the shading itself.

Where It Fits

Built to Perform

Sizes & Options

Take a Closer Look

Operable Install

The frame builds from the bottom, side and top rail sections, with the mid rail fixed in at the required position once the outer frame is square. The completed frame fixes into the prepared structural opening, then each blade takes a pivot cap at both ends before installing into the frame from top to bottom, confirming free rotation as each one goes in.

Complete System

Profiles

Suite

Shutter - Blade
3 1/2"

KELB

Shutter
Operable Control Bar

KELOC

Shutter
Operable H Section

KELOH

Shutter - Operable Rail
Adjustable

KELORAM

Shutter - Operable Rail
Mid

KELORM

Shutter - Operable Rail
Side

KELOS

Shutter - Operable Rail
Top

KELOR

Shutter - Operable Rail (LRG)
Bottom

KELORAFL

Shutter - Operable Rail (SML)
Bottom

KELORAFS

Shutter - Operable Track
Bottom

KELOTB

Shutter - Operable Track
Top

KELOTT

Shutter - Operable Rail
Side (Non Drilled)

KELOSN

Shutter - Blade - 3 1/2"

KELB

Add Sample

PDF

Customization

Downloads

Specification

Product Details

Material

Tempered Extruded Aluminum Alloy.
*See individual profile specification sheets for exact alloy and temper.

Country of Origin

United States of America. Sourced and produced through U.S. supply chains, which shortens lead times and reduces exposure to shipping delays.

Length

18.6'

Finish

Traditional solid powder coated colors or a sublimated wood grain surface.

Availability

Typically 2 to 4 weeks from order to dispatch.

Warranty Life

Backed by a standard 15 year warranty and up to 25 years on selected finishes.
See our warranty page for the terms.

Maintenance

Periodic washing with a soft broom and water, using a pH-neutral detergent.

Sustainability

Recyclable Aluminum
Non-Chromate Pre-Treatment
VOC free Powder Coat

Performance Requirements

Fire Standards

ASTM E136.

ASTM E84 Class A.

CAN/ULC-S114.

Performance Standards

ASTM B221 Aluminum Alloy Extrusions.

AAMA 2604 Metal Finishing Surface Coating.

FAQs

What are Operable Louvers?

Operable Louvers are a blade-based shading and screening system where the blades can be adjusted to control light, airflow, and privacy. Also called adjustable aluminum louvers, the blades rotate to open or close depending on conditions, allowing a facade, pergola, or screen to respond to changing sun angles, wind, and privacy needs throughout the day. Knotwood’s Operable Louvers are available in architectural-grade finishes for residential and commercial applications.

What is the difference between Operable Louvers and Fixed Louvers?

Operable Louvers have adjustable blades that rotate to change the angle of shading, airflow, and privacy. Fixed Louvers are set permanently at one angle during installation and do not move. Operable Louvers are the right choice when flexibility is needed through the day or across seasons. Fixed Louvers are the lower-maintenance option for applications where a single, consistent blade position covers the project requirement year-round.

What are Operable Louvers used for?

Operable Louvers are used across facades, pergolas, outdoor living structures, privacy screens and architectural partitions. They suit any application where the shading requirement changes through the day or the season rather than staying constant, which is the practical difference between this system and Fixed Louvers.

How do adjustable aluminum louvers work?

Each blade is mounted on a pivot cap at both ends, so it rotates within the frame rather than sliding or folding. A Control Bar fixes into every blade end and links the full run, so moving the bar rotates every blade at the same angle simultaneously. Opening the blades lets light and air through, closing them down blocks direct sun and sightlines, and the positions in between let you tune the balance through the day.

Are Operable Louvers suitable for pergolas?

Yes. Operable Louvers are well-suited to pergola and outdoor living structures where adjustable shade is the goal. The ability to open the blades for maximum airflow on cooler days and close them for shade in direct sun extends how long an outdoor space can be used comfortably through the day and across the year. Knotwood’s Operable Louvers are available in the same finishes as the broader Knotwood range, so they integrate with other Knotwood products on the same project.

What maintenance do Operable Louvers require?

Operable Louvers are available in the same architectural-grade finishes as the rest of the Knotwood louver range, including sublimated wood grain and solid powder coated options. See our finishes page for the current range.

Can Operable Louvers be motorized?

Knotwood’s Operable Louvers are operated by a manual Control Bar that links every blade in the run, so a single adjustment rotates the whole panel together. If your project needs automated or switch-operated control, contact our team with the requirement and we will confirm what can be supplied for the application.

What finishes are available on Knotwood Operable Louvers?

Knotwood’s Operable Louvers are available in the same architectural-grade finishes as the rest of the Knotwood louvre range, including timber look wood grain options. [NEEDS INPUT: confirm the full finish and colour range available specifically for Operable Louvers.]

Do the blades close fully to keep rain out?

The blades close down to block direct sun and sightlines, but this is a shading and screening system rather than a sealed roof. Closed blades will shed most light rain and give useful cover in a shower, and they are not a waterproof enclosure. If a project needs a genuinely weathertight cover over an outdoor area, that is a different build and worth talking through with our team before the design is locked in.

Can the system be installed overhead on a pergola?

Yes, this is one of the most common uses. Blades run horizontally across the structure and the Control Bar rotates them together, so the space can be opened up on a mild day and closed down when the sun is high. Overhead installations carry different loading to a vertical screen, so the supporting structure and the fixing method need to be designed for the span. Send us the pergola dimensions and we will confirm what is required.

How wide can a single panel be?

Panel width depends on the blade length, the frame and the loading at the site rather than a single published figure. An H Section is available for larger openings, which lets a run scale up without changing how it operates or how it is adjusted. Engineering specifications are prepared for the specific extrusion, so contact our team with the opening dimensions and we will confirm what can be spanned in one panel and where a division is needed.

Does the system need a building permit?

It depends on what it is attached to and where. A screen or partition often does not, while an overhead structure or a facade element on a commercial building usually does. The governing requirements come from the adopted building code in your jurisdiction, published by the International Code Council. Contact our team with the project details and we will provide the documentation your application needs.

How do the blades perform in wind?

Blades can be closed down or opened up depending on conditions, and the right position in strong wind depends on the installation. On an exposed facade or an overhead structure, wind loading is the main factor in how the frame is built and fixed, not the blade itself. Engineering specifications are prepared for the site conditions, so send us the location and exposure and we will confirm the frame and fixing requirements.

Can an individual blade be replaced?

Yes. Each blade sits on pivot caps at both ends and links to the Control Bar at its end, so a single blade can be released and replaced without dismantling the frame or disturbing the blades around it. It is worth keeping a spare or two from the original order, since finishes can vary slightly between production batches.

How much light do the blades let through when open?

Fully open, the blades sit close to edge-on, so most of the light and view comes through and the screen reads as a light frame rather than a solid element. Rotating them progressively cuts the direct sun while keeping diffused light, and fully closed gives near-total shade with the sightline blocked. That range is the reason to choose an adjustable system over a fixed one: a north-facing room can be opened up in winter and closed down through summer without changing anything about the installation.

Why Knotwood?

Locally Made,
Reliable Service

Free Estimations
& Support

Extensive Range of
Wood Grain Finishes

Lunch & Learns
& Educational Support

Need More Help?

Want some
samples?

Add samples to your cart to see, touch, and compare Knotwood finishes. Complimentary for industry professionals, our samples make specifying products simple.

Order Samples

Speak with a
Knotwood Expert

Connect with Knotwood professionals for system selection, technical support, and the resources needed to complete your project with confidence.

Contact

Need more
technical info?

Access technical guides, installation instructions, and product data to streamline your project planning and ensure accurate installation.

View Resources

Samples

Color Samples

Profile Samples

Popular searches

Categories

Solutions

Colours

Popular projects

Louvers

Operable Louvers

Aluminum Operable Louvers

Features

Take a Closer Look

Profiles

Customization

Operable

Orientation

Downloads

Specification

Product Details

Performance Requirements

FAQs

What are Operable Louvers?

What is the difference between Operable Louvers and Fixed Louvers?

What are Operable Louvers used for?

How do adjustable aluminum louvers work?

Are Operable Louvers suitable for pergolas?

What maintenance do Operable Louvers require?

Can Operable Louvers be motorized?

What finishes are available on Knotwood Operable Louvers?

Do the blades close fully to keep rain out?

Can the system be installed overhead on a pergola?

How wide can a single panel be?

Does the system need a building permit?

How do the blades perform in wind?

Can an individual blade be replaced?

How much light do the blades let through when open?

Why Knotwood?

Locally Made, Reliable Service

Free Estimations & Support

Extensive Range of Wood Grain Finishes

Lunch & Learns & Educational Support

More on Louvers

Architect-Ready Aluminum Systems with Certified Performance

Is All Powder Coating Equal?

The Foundation of a Great Build

Need More Help?

Want some samples?

Speak with a Knotwood Expert

Need more technical info?

Fixed Louvers