We'll follow up within one business day. No pressure, no upsells.
Ember resistant vent installation is the one home hardening fix that decides whether your attic catches fire from the inside, because a wind-blown ember does not have to touch your house to burn it down. It just has to get in. Every attic, soffit, and foundation vent is an open mouth pointed at the fire, and on the pre-WUI-code homes that fill the Jefferson County foothills, those openings are almost always covered with coarse 1/4-inch hardware cloth or bare plastic louvers that let embers pour straight into the attic. When Joe Slota walks a property around Evergreen or Conifer, the vents are one of the first things he reads, because sealing them is the highest ignition-risk reduction per dollar on the whole structure. Complete Estate Care assesses every vent on the building, then retrofits or replaces the failing ones with corrosion-resistant metal mesh or listed baffled ember-resistant vents as part of a documented home hardening scope. Call Joe directly at (303) 304-9997 to schedule a free wildfire risk assessment before fire season fills the calendar.
The scope of a vent retrofit depends on what is already on the openings: the mesh size and material currently in place, whether the vents are metal or plastic, how the eaves are built, and how many separate openings the structure carries between the attic, the crawlspace, the foundation, the gables, and any dryer or bath exhausts. Older homes across the Front Range foothills, especially the 1970s and 1980s subdivisions common along the Highway 285 corridor, were built before wildland-urban interface (WUI) vent standards existed, so they nearly universally carry non-compliant openings. Newer construction built to current code is usually in better shape but still worth checking, because plastic soffit vents and torn screens fail long before the rest of the house does. Every opening is different, so contact Complete Estate Care for an accurate estimate rather than a phone quote.
Ember-resistant attic vent screened in corrosion-resistant metal mesh on a Colorado foothills home
An ember-resistant vent is one built and screened to keep wind-blown embers and flame out of the attic or crawlspace while still letting the structure breathe, and it comes in two forms that do the job differently. The first is a standard vent retrofitted with corrosion-resistant metal mesh: the National Fire Protection Association (NFPA) and the Insurance Institute for Business and Home Safety (IBHS) both recommend 1/16-inch metal mesh as the standard, because that opening is fine enough to stop the small embers that do most of the igniting. Wildland-urban interface building codes set 1/8-inch as the maximum allowable opening, so anything coarser than that, and certainly the 1/4-inch hardware cloth on most older homes, fails outright. The second form is a listed baffled ember-resistant vent, an engineered unit with an internal baffle or intumescent coating that closes off airflow under fire exposure. Both stop embers. Which one belongs on a given opening depends on the vent location, the airflow the attic needs, and the exposure that side of the house faces. Joe reads each vent as part of the whole home hardening system, the same way he reads the roof, the siding, and the glass openings that fail under radiant heat long before a flame ever touches them.
The mesh gets the attention, but the material matters as much as the size. Plastic and fiberglass screens melt or burn away before they can block a single ember, which is why a plastic soffit vent is functionally an open hole the moment radiant heat arrives. Only corrosion-resistant metal, steel or aluminum, holds up long enough to matter.
Enclosed soffit eave detailing on a Front Range wildland-urban interface property
Why plastic soffit vents fail is worth being blunt about, because they are the single most common non-compliant opening we find on Front Range homes. Plastic and vinyl soffit vents were never designed for fire. Under the radiant heat that arrives well ahead of the flame front, the plastic softens, warps, and drops out of the soffit entirely, leaving a clear opening directly into the eave and the attic above it. At that point the vent is not screening anything. It is a chute. Fiberglass insect screen behind a metal louver has the same problem: it melts at a fraction of the temperature a wildfire generates, so a metal vent with a fiberglass screen is only as fire-resistant as the screen, which is to say not at all.
"People assume a vent with a screen is a protected vent. On the older homes up the 285 corridor, that screen is usually plastic or fiberglass, and it is gone the moment the heat hits it. The opening it was covering is now wide open to embers."
The fix is to replace the plastic unit with a metal vent screened in 1/16-inch corrosion-resistant metal mesh, or to install a listed baffled ember-resistant vent in the same opening. On a soffit specifically, the eave detailing matters as much as the vent itself, which is the next thing Joe checks. Get a free wildfire risk assessment to have every opening on the house read.
Foundation and crawlspace vent retrofit in the ground-level ember zone of a Colorado home
Enclosed eaves are one of the most effective and most overlooked wildfire details on a foothills home, and they change the vent conversation entirely. An open eave, the kind where you can look up under the roof overhang and see the exposed rafter tails and the underside of the roof deck, is a heat trap. Embers and hot gases rise, collect in the open eave, and pile against the vents and the roof sheathing, which is exactly where a house ignites from above. An enclosed eave, sometimes called a boxed or soffited eave, closes that cavity off with a non-combustible or ignition-resistant soffit board, so there is no open pocket for embers to collect in and the only path into the attic runs through a properly screened vent. IBHS research on eave design is direct: enclosed, soffited eaves survive ember exposure at higher rates than open eaves, because they remove the collection point. On the pre-WUI-code homes across the Jefferson County foothills, open eaves with exposed rafter tails are the norm, and boxing them in with a fiber-cement or metal soffit, then venting that soffit with metal mesh or a baffled vent, is one of the higher-value structural upgrades available. It is detailed work, and it ties directly into the roofline and the defensible space in front of the house, which is why it belongs in a whole-property assessment rather than a one-off product install.
Enclosed soffit eave detailing on a Front Range wildland-urban interface property
Retrofitting an existing vent to be ember-resistant means adding a fine metal screen behind the vent you already have, so no ember can pass through, without tearing the vent out of the wall. On a sound metal attic, gable, or foundation vent, the retrofit is straightforward: Joe fits corrosion-resistant 1/16-inch metal mesh behind the existing louvers, fastened so it sits flush and cannot be pushed aside by wind. That 1/16-inch opening is the standard the National Fire Protection Association (NFPA) and the Insurance Institute for Business and Home Safety (IBHS) both recommend, and it is fine enough to stop the small wind-blown embers that do most of the igniting. The coarse 1/4-inch hardware cloth on most older foothills homes is four times too wide, so the retrofit replaces that screen with mesh that actually blocks embers.
Here is how the retrofit runs on a typical opening:
1. Read the existing vent. Joe confirms the vent body is metal and structurally sound, checks the current mesh size and material, and notes the exposure that side of the house faces. A plastic or warped vent gets replaced instead, because you cannot retrofit a unit that melts. 2. Fit 1/16-inch metal mesh behind the louvers. Corrosion-resistant steel or aluminum mesh, cut to the opening and fastened so it stays put under wind load. No fiberglass, no plastic, because those burn away before they can stop an ember. 3. Seal the edges. The mesh is secured at every edge so there is no gap an ember can ride around. A screen with a loose corner is an open corner. 4. Document the opening. The finished retrofit is photographed and logged with the rest of the home hardening scope for your insurer.
Not every opening is a retrofit candidate. Plastic soffit vents, torn fiberglass screens, and high gables facing the worst wind exposure often earn a full replacement with a listed baffled ember-resistant vent instead. The next section is the honest line on which is which. Call (303) 304-9997 to have every opening read before fire season fills the calendar.
Foundation and crawlspace vent retrofit in the ground-level ember zone of a Colorado home
Here is the honest part most contractors will not lead with: not every vent on your house needs to be torn out and replaced. On a lot of homes the highest-value work is retrofitting the existing metal vents with 1/16-inch metal mesh behind the louvers, not swapping the whole unit. A sound metal gable vent with a coarse or fiberglass screen becomes compliant with a proper metal mesh retrofit for a fraction of a full vent replacement. Full replacement with a listed baffled ember-resistant vent earns its cost on the openings that face the worst exposure, on high gables in the wind path, and where a plastic unit has to come out anyway. Joe will tell you which vents need replacement and which just need a screen retrofit, because a company that quotes new baffled vents on every opening sight-unseen is reading its price sheet, not your house.
That honesty is the point of an assessment. Vents are one opening type in a whole-property picture, and they compete for your mitigation budget against the roof, the siding, and the Zone 0 ground cover around the foundation. Joe sequences the vent work against everything else so you spend where the ignition risk actually is.
Enclosed soffit eave detailing on a Front Range wildland-urban interface property
The vents do not stand alone. They are openings in the Home Ignition Zone, the concept CSFS and IBHS use to treat the structure and the vegetation within roughly 100 feet as a single ignition-risk system. Screening the attic vents perfectly while combustible mulch sits within five feet of a foundation vent, or while a wood fence runs into the wall below a soffit, only closes half the path. Wind-blown embers travel more than a mile ahead of a fire front and pile up on the windward side of the house, which is exactly where the low soffit and foundation vents collect them. Post-fire investigations from events like the 2021 Marshall Fire in Boulder County repeatedly found the same pattern: homes with sealed, metal-screened vents survived on blocks where neighboring houses with open or plastic vents did not, even under similar fire intensity. That is why Joe reads the vents together with the defensible space around them and the rest of the home hardening scope on the structure. Vent installation is a stage inside the larger fire mitigation sequence that runs from assessment through structural hardening and insurance documentation, not a standalone product you bolt on and forget.
Unscreened and plastic vents are one of the most consistently documented ways a wildfire gets inside a Colorado home, and they are one of the cheapest to fix. Joe Slota counts every opening on your house, tells you honestly which vents need replacing and which just need a metal mesh retrofit, and documents the work for your insurer. Call (303) 304-9997 to schedule your free wildfire risk assessment, or request a free estimate online.
Or send us your info
