How to Apply Fire Retardant Varnish to Your Log Home

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If you’re planning to apply fire retardant varnish to your log home, it’s important to prepare carefully and follow the necessary steps. These general guidelines will help you achieve the best possible outcome and ensure that your home is adequately protected.

Choose the right fire retardant

Like this picture, fire commonly follows up to the attic and spreads across the upper roof. Fire retardant on the interior of your attic could help slow the spread.

Some stains may have fire retardant additives already included. Consult with the manufacturer or a professional contractor to help you choose the appropriate type of fire retardant varnish for your log home based on its:

  • location,
  • condition,
  • and desired appearance.

Prep the log surface

It would be best if you prepared your log home for varnishing and thoroughly clean the surface using either TSP, Borax, or OxiClean and water. Dish soap may leave a film after rinsing. You can use a soft bristle mop brush to remove any dirt, dust, bird droppings, grease, mold, or stains that could affect the adhesion and performance of the varnish. Allow the surface to dry completely before applying the varnish.

Follow the instructions

Apply the fire retardant varnish according to the manufacturer’s instructions and recommendations. Use a brush or spray gun to apply an even and smooth coat of varnish over the entire surface. You may want two people so one person can spray while the other back brushes. Back brushing (brushing the coating into the surface after spraying it onto the logs) helps prevent overlapping or leaving gaps or bubbles in the coating.

Pay Attention to Dry Time

Follow the recommended drying time between coats using a two-coat system on your log home’s surface after applying the varnish. Check for any defects or inconsistencies in the coating and fix them if necessary. Apply another coat of varnish if needed to achieve the desired coverage and protection.

Regular Maintenance

Maintain your log home’s surface regularly with the clean instructions above. Avoid using harsh chemicals or abrasives that can damage the varnish. You should also avoid using a pressure washer for cleaning as you could damage the stain surface. Reapply the varnish as needed to keep your log home’s fire resistance up to date. Let us know if we can help with your log home maintenance needs.

Speak to a Professional

We tell all our clients always to do their research. Not all log home companies are in the habit of using fire retardants as this is often something the homeowner can apply themselves. As mentioned above, many stains are made to consider fire hazards, but not all stains, if few, have fire retardant additives.

3 Comments on “How to Apply Fire Retardant Varnish to Your Log Home”

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    1. Thank you so much. We try to put content on our blog that log homeowners will find useful in the care of their investment. We welcome questions in the comments as they often inspire new blog articles. Our experts have seen 100s of log cabins in various sizes and in hard to reach places. We’ve serviced structures with environmental concerns on a luxury log home built over a lake and cabins owned by the federal, state, and city municipalities. You can see them in our gallery. We’ve gone through the hard times, learned from the professionals who’ve gone before us, and take every effort to improve our services by using only the trusted brands and improving quality standards so customers are satisfied. We appreciate you sharing our content. Learn more about us…

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