Retrofits
Every existing vent can be upgraded — not just replaced.
A V2 Vents retrofit kit adds ember-catching mesh and intumescent-coated V2 Matrix protection to a vent opening that’s already in place, without requiring a full vent swap.
Retrofit Kits
Upgrading What’s Already There
Retrofit kits come in a range of dimensions, with custom sizing available. The current lineup covers:
- Retrofit Louvered Vent/Eave Vent: Exterior
- Retrofit Half Round Dormers
- Retrofit Louvered Vent: Interior
- Continuous Vent Retrofits
- Soffit Vent/Ridge Vent Retrofits
- Retrofit Half Round Dormers
- Eave
- Sub Flashing *
* The Sub Flashing can be used in conjunction with any other manufacturers’ dormer or roof vent and turn it into an ember and fire-safe vent
QuickReducing Exposure
Why Retrofit at All
Every vent on a home — from the roofline down to the crawlspace — has to keep air moving and keep embers out at the same time. V2 Vents retrofit kits let an existing opening do both, without a full vent replacement.
Bring an Existing Vent Up to Code
Have a question about V2 Vents, wildfire-resistant construction, retrofit work, custom sizes, or a code-aware project? Get in touch and take the next step towards wildfire safety today.
Improved Ventilation
No Baffles, More Airflow Per Square Inch
Ember- and fire-resistant vents are required under California’s Chapter 7A / CWUIC Chapter 5 Wildland-Urban Interface (WUI) code in high-risk fire zones — retrofit kits bring existing openings up to that same standard.
Critical Step
Sealing the Install with EverKem
- Use EverKem 814+ intumescent fire caulking on every V2 Vents installation. Round eave vents use EverKem 136 mortar-based caulking instead, where mounting hardware isn’t practical and flanges run minimal.
- Installation: Run a bead of EverKem behind the nailing flange before setting the vent — this keeps the seam between vent and building material airtight, closing off any gap embers could use to get in.
Quality Manufacturing
What’s Built Into Every V2 Vent
V2 Matrix Intumescent Technology
Reacts at critical temperatures to defense against heat and flames
Exceptional Airflow
Our Net-Free-Vent-Area (NFVA) specifications are verified by accredited 3rd parties for airflow performance you can trust!
Code-Aware Design
Built to align with Wildland Urban Interface code in California’s Chapter 5 (Chapter 7A) -> CWUI and beyond -> IWUI etc.
Independently Tested
Evaluated to ASTM E2886 and ASTM2912 for resistance to ember entry and direct flame impingement in both, horizontal and vertical directions.
Retrofit V2 Vents Spec Table
Protect the Part of the Home You Don’t See
* Within 5 miles of the coast, copper, stainless steel, or a powder-coated finish holds up better than standard galvanized against salt air. *
Product Specifications
| MFG. PART # | DESCRIPTION | Vent Type | NFVA (sq. in.) | Cut Out (in.) | SPEC SHEET |
|---|---|---|---|---|---|
| FSVSC2120R | 2" x 120" SINGLE NAILING FLANGE | Continuous V2 Vent | 96 | N/A |
 |
| FSVSC25120R | 2.5" x 120" SINGLE NAILING FLANGE | Continuous V2 Vent | 120 | N/A |
|
| FSVSC3120R | 3" x 120" SINGLE NAILING FLANGE | Continuous V2 Vent | 144 | N/A |
|
| FSVSC35120R | 3.5" x 120" SINGLE NAILING FLANGE | Continuous V2 Vent | 168 | N/A |
|
| FSVSC4120R | 4" x 120" SINGLE NAILING FLANGE | Continuous V2 Vent | 192 | N/A |
|
| FSVSC5120R | 5" x 120" SINGLE NAILING FLANGE | Continuous V2 Vent | 240 | N/A |
|
| FSVSC6120R | 6" x 120" NO FLANGE CONTINUOUS RETROFIT | Continuous V2 Vent | 288 | N/A |
|
| FSVDHR1224R | 12" x 24" RETROFIT HALF ROUND DORMER VENT W/ SOFT ZINC HOOD | Dormer V2 Vent | 90 | N/A |
|
| FSVDHR918R | 9" x 18" RETROFIT HALF ROUND DORMER VENT W/ SOFT ZINC HOOD | Dormer V2 Vent | 51 | N/A |
|
| FSVG148FB | 14" x 8" FOAM BACK FLANGE recessed 1-1/2" | Louvered V2 Vent | Dependant | N/A |
|
| FSVG148FC | 14" x 8" FIBER CEMENT FLANGE recessed 3/8" | Louvered V2 Vent | Dependant | N/A |
|
| FSVG148FF | 14" x 8" FLANGE FRONT | Louvered V2 Vent | Dependant | N/A |
|
| FSVG1412FB | 14" x 12" FOAM BACK FLANGE recessed 1-1/2" | Louvered V2 Vent | 58 | 14 X 12 |
|
| FSVG1418FB | 14" x 18" FOAM BACK FLANGE recessed 1-1/2" | Louvered V2 Vent | 86 | 14 X 17.5 |
|
| FSVG1418R | 14" x 18" RETROFIT FLANGE recessed 2-5/8" | Louvered V2 Vent | 115 | 14 X 23.5 |
|
| FSVG1424FM | 14" x 24" FLANGE MIDDLE recessed 1-5/16" | Louvered V2 Vent | 29 | 14 X 7.5 |
|
Let’s Build a Safer Future!
Give us a call or submit your information via the form and a team member will get back to you.
Phone
(916) 652-7424
Hours
Mon. – Fri. 8AM – 4PM Pacific Time
