Accessories & Ventilation Services

Sized to the attic, not sold by the box

An Attic That Can’t Breathe Stays Hot All Night.

Heat has to get out of the attic as well as be kept out of the house, and bath, kitchen and dryer exhaust has to end up outside. Insulation decides how fast heat gets in. Ventilation decides how long it stays.

Cool air in low at the soffits, hot air out high at the ridge
Baffles keep the new insulation off the vents it depends on
A fan over the garage where that attic traps heat, never as a substitute for the envelope
Bath, kitchen and dryer exhaust routed and terminated outside, not into the attic

(602) 675-6827

Free Duct & Attic Assessment, about 2 hours, with you present. We do not sell or service HVAC equipment.

A galvanized garage and attic exhaust fan on its roof curb — Garage and attic exhaust fan

Attic Ventilation and Radiant Heat

Both Peak Mid-Afternoon. The Difference Is the Evening.

Attic temperature over 24 hours, blocked against balanced ventilation, illustrative. Switch the attic to see why.

Stored heat is the evening problem. A blocked attic keeps pouring heat into the bedrooms until midnight; a ventilated one cools down with the sun.

Blocked. Soffit vents buried in insulation, no exhaust path, a dark roof. Stored heat keeps pouring into the house after dark.

What We Often Find

Does Your Home Show the Signs?

Blown-in insulation installed without baffles slides into the eaves and blocks the intake. Roof replacements lose vents. Exhaust ducts get dropped in the attic and forgotten.

Check the ones that sound like your home

Takes about 15 seconds. Nothing is submitted.

Evenings don’t cool down; the system runs into the night
The attic is still hot at bedtime
The attic fan over the garage is dead, or runs and changes nothing
The bathroom mirror stays fogged after the fan has run
The dryer takes two cycles, or the laundry room heats up
Garage or attic odors indoors
One floor or wing runs several degrees off the thermostat

A clogged dryer vent: lint packed solid in the wall opening behind the dryer — A clogged dryer vent.

The Accessories

None of these is sold by the box. Each goes in when the inspection shows the need, and alongside the sealing and insulation it depends on.

Cardboard baffles stapled between the rafters at the eaves, holding the new blown-in insulation off the soffit vents

Let the attic breathe

Baffles, Ridge and Roof Vents

Baffles at the eaves keep the new insulation off the soffit vents; exhaust area is corrected high on the roof with ridge and roof vents.

Recommended whenSoffits are buried or painted shut, exhaust area is short, or the attic is still above 110° at bedtime.

Push the hottest air out

Garage and Attic Exhaust Fan

Pushes the trapped heat out of the attic over the garage before it reaches the house, so the insulation has less to hold back. Never a substitute for the envelope.

Recommended whenThe inspection shows trapped heat above or inside the garage.

Garage Temperature Control

A new, quiet bathroom exhaust fan grille in a ceiling

Moisture out, quietly

Upgraded Bath Fans

Quieter, stronger fans that actually clear the moisture and odors after a shower, ducted and terminated outside.

Recommended whenThe mirror stays fogged, the old fan is loud and weak, or its duct ends in the attic.

A recessed dryer vent box set into a laundry room wall

A straight path for lint

Inset Dryer Vent Box

A recessed box lets the transition duct sit cleanly behind the dryer, so it stops getting crushed and the exhaust actually reaches outside.

Recommended whenThe duct behind the dryer is kinked or flattened, drying takes two cycles, or the line has needed clearing before.

Dryer vent cleaning

An energy recovery ventilator installed in a closet with its ducts connected

Fresh air on purpose

Fresh Air Ventilation

A fresh air vent or an energy recovery ventilator brings a controlled amount of outdoor air in and stale air out, through a filtered path instead of gaps in the attic.

Recommended whenThe readings after source control say the house itself is the remaining source: rooms never feel fresh.

Indoor Air Quality Services

A motorized zone damper mounted on an insulated attic duct run above the air handler

Two climates, one system

Zoning

Dampers that let an upstairs or a far wing be controlled separately. Balance comes first: the system is set to each room’s measured load and the load is cut before zoning is added.

Recommended whenThe numbers still call for it after balancing, right-sized runs and a return for every floor.

Regional Temperature Control

As found. Bath and kitchen exhaust dumped into the attic, where the moisture lands on insulation and framing; the dryer duct crushed behind the dryer and packed with lint.

Safety and Moisture

Exhaust Has to End Up Outside.

During the assessment we find where bath, kitchen and dryer exhaust actually terminate. Then it is routed and terminated outside, with the dryer line cleared and the shared garage walls and ceiling sealed so fumes stay out.

Bath and kitchen exhaust ducted to a roof or wall cap, not the attic
Dryer line straightened, cleared and boxed so it stops crushing
Cold ducts, boots and registers insulated so they stop sweating
Garage-to-house separation sealed; scoped from the assessment

Safety + Moisture Management

A clean dryer vent opening in a laundry room wall after the line was cleared — The same kind of vent, cleared and straight to the outside.

A Note on Honesty

Ventilation Alone Will Not Make a 140° Attic Cool.

What it does

It lowers the peak somewhat and shortens the evening a lot. The big wins are still sealing, protected ducts and deep, even insulation. Ventilation is what lets those corrections rest at night.

Where it fits

Intake baffles and ventilation corrections are handled alongside the blown-in insulation in an attic plan, so the new insulation never blocks the vents it depends on. A radiant barrier is recommended only where the attic layout, ventilation and duct location make it worth it, and we say which.

Insulation Services Air Seal Services

Which Concern Is This For

What Ventilation and Exhaust Work Solves

Scoped from the assessment, sized to the targets you choose.

Concern 7Safety + Moisture ManagementExhaust terminated outside, cold surfaces insulated, attic ventilation corrected.See the concern Concern 4Garage Temperature ControlAn attic fan over the garage where that attic traps heat.See the concern Concern 5Home + HVAC System PerformanceEvenings that cool down, so the system can rest at night.See the concern Concern 6Indoor Air QualityFresh air brought in on purpose, after the loop is closed.See the concern

Backed By

Guaranteed to Targets You Choose

Attic work that includes ventilation can carry the Set-Point Holdfast and Energy Savings guarantees, chosen one by one with a target you set, plus the 20-year labor workmanship warranty on every job.

Set-Point Holdfast Guarantee

You pick the outdoor temperature

“Your home holds its thermostat set point when the outdoor temperature reaches the level you choose.”
Energy Savings Guarantee

You pick the savings

“Your system uses less energy after our improvements, by the amount you choose.”
Also on every job

20-year labor workmanship warranty

Separate from the guarantees, which are about the result.

How each guarantee is backed How your package is built

Questions

Ventilation and Accessories, Answered

Will an attic fan cool my attic?

It pushes the hottest air out so the insulation has less to hold back, and it shortens the evening. It will not make a 140° attic cool on its own, and it is never a substitute for sealing and insulating. We recommend one where the inspection shows trapped heat, usually over the garage.

Do I need a ridge vent?

Only if the exhaust area high on the roof is short for the attic. Ventilation works low in, high out; the assessment compares intake and exhaust area against the attic floor and sizes the correction to the attic, not by the box.

What about a radiant barrier?

A barrier under the roof deck can reduce the heat radiating down onto the insulation and ducts. It is evaluated case by case after sealing, protected ducts and insulation; the attic layout, ventilation and duct location decide whether it earns its cost, and we say which.

Why does my bath fan do nothing?

Often because it is weak, loud and ducted into the attic rather than outside. An upgraded fan with a duct to a roof or wall cap clears the moisture and keeps it out of the attic.

Where should the dryer vent end?

Outside, through the shortest, straightest line possible. A crushed transition duct or a line ending in the attic slows drying, wastes energy and builds up lint; an inset box and a cleared line fix both.

Is zoning right for my home?

Balance comes first: dampers set from each room’s measured load, right-sized runs and a return for every floor, plus attic insulation and duct protection over the warm zone. Zoning or a mini-split is added when the numbers still call for it.

Google Reviews

What Valley Homeowners Say About Knights of the Attic

    
 
 
       Posted on Google  
   
   Chuck D 
 
 
 
 Trustindex verifies that the original source of the review is Google. Damien Mendez at Knights of the Attic did an awesome job balancing our cooling system after the attic portion of the work was complete. Listened to us and made adjustments based on our issues/ needs. Thank you!
  
 
      Posted on Google  
   
   Laura H 
 
 
 
 Trustindex verifies that the original source of the review is Google. Every single one of their employees was personable, polite, punctual, and tidy. We had experience with Nick, Antonio, Jovan, Miguel, and Noah.
Our house is significantly more comfortable. Our master suite is at the far end of the house and used to be 10 to 15° warmer than the rest of the home. We are sleeping so much better, thanks to Knights of the Attic! Highly recommend!
  
 
      Posted on Google  
   
   Johnny G 
 
 
 
 Trustindex verifies that the original source of the review is Google. We have had a hot room upstairs since we moved in over a decade ago.  Numerous AC companies told us different things, no solutions.  These guys came out and fixed the airflow, sealed it up and everything is great now.  I wish I called sooner honestly.
  
 
      Posted on Google  
   
   Brian D 
 
 
 
 Trustindex verifies that the original source of the review is Google. Knights of the Attic technician, Shane Ratliff did an outstanding analysis of our ductwork system and made recommendations for us. Shane was very knowledgeable, professional and personable!
  
 
      Posted on Google  
   
   Lauren P 
 
 
 
 Trustindex verifies that the original source of the review is Google. One amazing company amazing owner
  
 
      Posted on Google  
   
   Rhonda B 
 
 
 
 Trustindex verifies that the original source of the review is Google. Shane was awesome explaining everything that was wrong & showing us everything that needs to be done! I highly recommend Shane & Knights of the Attic for the job!!!
  
 
      Posted on Google  
   
   Loren O 
 
 
 
 Trustindex verifies that the original source of the review is Google. Shane did a great job explaining the process of insulating the house and garage attic to me. I have a better understanding of the process and goals set.
  
 
  
  
 
 
      Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Ventilation and Accessories Across the Phoenix Metro

From Buckeye to Maricopa, and the communities below.

Scottsdale
Phoenix
Mesa
Tempe
Gilbert
Peoria
Chandler
Apache Junction
Avondale
Buckeye
Carefree
Cave Creek
El Mirage
Fountain Hills
Gila Bend
Glendale
Goodyear
Guadalupe
Litchfield Park
Maricopa
Paradise Valley
Queen Creek
Surprise
Tolleson
Youngtown

Not sure whether we serve your home? Call (602) 675-6827 and we’ll be happy to assist.

Map of the Knights of the Attic service area across the Phoenix metro

Free Duct & Attic Assessment

Find Out Whether Your Attic Can Breathe

About 2 hours, with you present. Attic temperature taken, intake and exhaust checked from inside, fans tested, the roof deck imaged, and every exhaust traced to where it ends. If it all checks out, we say so.