FEATURED BOARD DEFENSE PROJECT
Board Defense Residential Project
This Board Defense project documents a residential home addition where new structural framing was treated before roof sheathing, siding, and exterior finishes enclosed the wood.
PROJECT OVERVIEW
Board Defense Project Overview
This residential remodeling project included a major home addition where new structural framing would soon be enclosed by roof sheathing, siding, and exterior finishes.
Before the wood was covered, the entire exposed framing system was treated with WRP Board Defense.
Using a professional sprayer and a temporary color tint, the applicator achieved complete coverage across framing, roof members, joists, stairs, and other exposed wood surfaces. The tint made it easy to verify every area had been treated during application and naturally faded as the wood dried.
Applying Board Defense before the framing is enclosed helps protect structural wood against decay fungi, termites, carpenter ants, wood-boring beetles, and moisture-related deterioration.
Helps Protect Wood
Helps protect exposed bare wood from decay fungi and long-term deterioration.
Insect Protection
Helps protect treated wood against termites, carpenter ants, and wood-boring beetles.
Applied Before Enclosure
Framing was treated before sheathing, siding, insulation, and finishes permanently covered the wood.
Tinted Coverage
A temporary color tint made it easier to confirm coverage across exposed surfaces during application.
APPLICATION VIDEO
Watch Board Defense in Action
Follow the complete Board Defense application process on a real residential remodeling project. See how the wood preservative is applied before the framing is enclosed, allowing complete coverage of exposed structural wood before construction continues.
APPLICATION GALLERY
Board Defense Application Process
These photos document where WRP Board Defense was applied across the roof deck, exterior walls, stairs, floors, and other exposed framing before the addition was enclosed.
Coverage Tint on Roof Decking
The temporary tint makes treated and untreated roof areas easy to distinguish while Board Defense is being applied.
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Spraying the Roof Deck
Board Defense is sprayed evenly across the exposed roof deck before the area is enclosed by the next phase of construction.
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Exterior Wall Coverage
Tinted treatment provides a clear visual check that the exterior wall sheathing and surrounding framing received coverage.
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Stairs and Floor Framing
Stair components, floor areas, and nearby framing were treated before they became harder to access.
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Treated Roof Area
The treated roof area shows broad visible coverage while the temporary tint begins to lighten as the wood dries.
View Full-Size PhotoPROJECT GALLERY
From Bare Framing to Protected Structure
The project photos show the framing before treatment and after the tinted Board Defense application, including the roof deck, structural members, stairs, and interior framing.
Interior Framing Before Treatment
This interior view documents the exposed framing before the tinted Board Defense application was completed.
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Stair Framing Before Treatment
The curved stair framing was documented before treatment so the project could show the change after application.
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Completed Roof Coverage
The roof deck shows consistent tinted coverage after the Board Defense application was completed.
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Treated Structural Framing
This close-up shows treated joists and structural members before they were covered by later construction work.
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Interior Treatment Complete
The interior framing and floor areas show visible treatment coverage before the addition moved to the next phase.
View Full-Size PhotoWHY BOARD DEFENSE
Long-Term Protection for Exposed Structural Wood
WRP Board Defense is a borate-based wood preservative designed for application to bare, accessible wood before framing is enclosed. It helps protect exposed lumber from decay fungi, termites, carpenter ants, wood-boring beetles, and other wood-destroying organisms. Learn more about protecting exposed wood with Board Defense or view the Board Defense product .
Helps Protect Against Decay
Borate treatment helps protect bare wood from decay fungi that can contribute to rot and long-term deterioration.
Helps Protect Against Insects
Helps protect treated wood from termites, carpenter ants, wood-boring beetles, and other wood-ingesting insects.
Designed for Bare Wood
Board Defense is applied to clean, unfinished wood so the water-based borate solution can penetrate the surface.
Ideal Before Enclosure
Treat framing before sheathing, siding, insulation, drywall, and finishes make the wood difficult to access.
Efficient Spray Application
Professional spray equipment helps applicators treat broad areas of exposed framing efficiently and consistently.
Documented Project Coverage
A temporary tint helped the project team visually confirm where treatment had been applied before construction continued.
ASTM E84 TESTING
Documented Surface-Burning Test Results
Intertek tested plywood treated with two coats of a 10% Board Defense solution under ASTM E84-09. The treated plywood recorded lower flame-spread and smoke-developed indexes than the untreated plywood control tested under the same standard.
Board Defense-Treated Plywood
Two coats of a 10% Board Defense solution were applied to the plywood specimen tested by Intertek.
Flame Spread Index: 45
Smoke Developed Index: 110
Untreated Plywood Control
A separate untreated plywood specimen was tested as the comparison control under ASTM E84-09.
Flame Spread Index: 110
Smoke Developed Index: 170
IMPORTANT TEST CONTEXT
Results Apply to the Specimens and Conditions Tested
ASTM E84 measures comparative surface-burning behavior under controlled laboratory conditions. The published results apply specifically to the plywood specimens and Board Defense treatment described in the Intertek reports. They should not be presented as a guarantee of fire performance for every wood species, assembly, application rate, or construction condition.
Product selection and code compliance should be confirmed with the applicable project documents, building official, architect, engineer, or other qualified professional.
PRODUCT USED
WRP Board Defense Wood Preservative
This project used WRP Board Defense to treat exposed structural wood before roof sheathing, siding, and other construction materials permanently covered the framing.
Protect Bare Wood Before It Is Enclosed
Board Defense is a water-mixed borate wood preservative designed for above-ground bare wood, including framing, dimensional lumber, timbers, siding, and other exposed wood surfaces.
- Helps protect wood from fungal decay
- Helps protect against wood-destroying insects
- Suitable for spraying or brushing onto bare wood
- Temporary tint can help confirm application coverage
- ASTM E84 surface-burning test documentation available
FREQUENTLY ASKED QUESTIONS
Board Defense Application Questions
Learn when Board Defense should be applied, what surfaces it can protect, and what to expect after treatment.
When should Board Defense be applied during construction?
Board Defense should be applied while the wood is still bare and accessible. On this project, the framing was treated before roof sheathing, siding, insulation, and finishes permanently covered the wood.
Why was a temporary color tint added?
The temporary tint helped the applicator see which areas had already been treated and identify any missed spots. The visible color naturally became lighter as the wood absorbed the solution and dried.
What types of wood can be treated with Board Defense?
Board Defense is intended for above-ground bare wood, including structural framing, dimensional lumber, timbers, siding, logs, joists, decking components, and other accessible wood surfaces.
Does Board Defense help protect against insects and rot?
Board Defense is a borate-based wood preservative that helps protect treated wood against decay fungi, termites, carpenter ants, and wood-boring beetles when prepared and applied according to the product instructions.
How many coats of Board Defense should be applied?
The technical instructions recommend applying the mixed solution thoroughly and applying a second coat 4 to 24 hours after the first coat. Cut ends, checks, cracks, and other vulnerable areas should be thoroughly treated.
Can treated wood be covered or finished immediately?
The treatment should be allowed to absorb and dry before the wood is enclosed or coated. When an exterior water-repellent finish will be applied, follow the product instructions for drying time and verify that the wood is sufficiently dry before finishing.
Is Board Defense fire rated?
Plywood treated with two coats of a 10% Board Defense solution was independently tested under ASTM E84 for surface-burning characteristics. The tested specimen produced a Flame Spread Index of 45 and a Smoke Developed Index of 110.
These values apply to the specific material and application tested. Consult the complete test report and applicable building requirements before specifying the product for a fire-performance application.
READY TO PROTECT YOUR PROJECT?
Protect Exposed Structural Wood Before It's Covered
Whether you're building a new home, completing a remodel, or restoring an existing structure, WRP Board Defense helps protect exposed wood from rot, termites, carpenter ants, wood-boring beetles, and moisture-related deterioration before construction moves forward.