Save 20% On Fire Retardant Sprays through March.
Fire Retardant Sprays for Homes in the WUI
Wildfire protection isn’t just about cutting trees—most homes in the WUI ignite from wind-driven embers landing on vulnerable surfaces like decks, fences, siding, mulch beds, and debris. Foothills Fire Block provides professional fire-retardant spray treatments to help reduce ignition potential on exposed exterior materials—especially when full replacement or renovation isn’t practical.
If you’re a homeowner, HOA, or property manager in Colorado, our spray options offer a smart secondary layer of protection that pairs with defensible space and home hardening.
Best for: decks • fences • siding • fabrics • timber features • mulch beds • landscaped areas
What Are Fire Retardant Sprays?
Fire retardant sprays are applied to exterior surfaces to help reduce ignition risk during ember exposure and slow the rate of spread. Think of them as a protective layer for vulnerable materials—particularly combustible wood and landscaping fuels that can ignite and spread fire toward the home.
These treatments are most effective when installed as part of a broader plan
Our Fire Retardant Spray Options
GOOD: Landscape/Mulch/Brush Treatment
BEST: Wood Protection System (Penetrant + Protective Seal)
BETTER: Two-Coat Penetrating Wood Treatment
A protective coating approach for landscaped areas exposed to embers.
Ideal for: mulch beds • garden zones • decorative brush • ember-exposed landscaping
Purpose: reduce surface ignition potential in managed areas
We use USFS-approved, long-term fire retardants to interrupt fuel continuity and reduce ignition risk. Non-toxic | Clear
BETTER: Two-Coat Penetrating Wood Treatment
BEST: Wood Protection System (Penetrant + Protective Seal)
BETTER: Two-Coat Penetrating Wood Treatment
A professional penetrating treatment designed for untreated exterior wood.
Ideal for: decks • fences • siding • trim
Purpose: penetration into wood fibers to help slow ignition and flame spread
ASTM 84 Class A: FSI 0–25
Non - Toxic | Clear
BEST: Wood Protection System (Penetrant + Protective Seal)
BEST: Wood Protection System (Penetrant + Protective Seal)
BEST: Wood Protection System (Penetrant + Protective Seal)
Our most comprehensive approach for untreated wood surfaces when replacement isn’t feasible: a penetrating treatment followed by a protective sealing layer.
Ideal for: high-value homes • large decks • timber features • exterior wood elements
Purpose: layered ignition resistance + added exterior durability.
We use USFS-approved, long-term fire retardants to interrupt fuel continuity and reduce ignition risk. Non-toxic | Clear
When Should Fire Retardant Sprays Be Used?
When Fire Retardant Sprays Should Be Used
When Fire Retardant Sprays Are NOT the Right Solution
When Fire Retardant Sprays Are NOT the Right Solution
1) You Can’t Replace Your Deck, Fence, or Siding (Yet)
If a full renovation isn’t in the budget—or you’re waiting on a remodel timeline—sprays offer a practical way to reduce ignition potential on existing wood surfaces.
2) Your Property Has High Ember Exposure
Homes in the WUI are exposed to embers that can travel ahead of a wildfire and l
1) You Can’t Replace Your Deck, Fence, or Siding (Yet)
If a full renovation isn’t in the budget—or you’re waiting on a remodel timeline—sprays offer a practical way to reduce ignition potential on existing wood surfaces.
2) Your Property Has High Ember Exposure
Homes in the WUI are exposed to embers that can travel ahead of a wildfire and land on:
- Deck surfaces and gaps
- Fence lines and gates
- Siding details and trim edges
- Under-deck areas
- Mulch and plantings near the structure
3) You Need an Added Layer of Protection for High-Value Properties
For larger homes and managed estates, sprays can be part of a layered wildfire resilience strategy, especially around outdoor living areas and architectural wood features.
4) You Want Seasonal Preparation Before Peak Wildfire Season
Sprays are often applied as part of a seasonal prep plan—alongside defensible space refresh and ember-intrusion checks
When Fire Retardant Sprays Are NOT the Right Solution
When Fire Retardant Sprays Are NOT the Right Solution
When Fire Retardant Sprays Are NOT the Right Solution
We’re direct about this: sprays are not “fireproofing,” and they do not replace the fundamentals.
Fire retardant sprays are not a substitute for:
- clearing Zone 0 (0–5 feet)
- installing ember-resistant vents
- removing debris and ladder fuels
- correcting combustible landscaping next to the home
If those basics are ignored, spray treatments alone won’t protect a structure