Boral TruExterior® Trim – Frequently Asked Questions



Is Boral TruExterior® Trim a proven product?


Prior to it’s introduction, Boral TruExterior® Trim was subjected to rigorous third-party testing and we now have several years of real world field testing to prove it’s mechanical, physical and thermal properties.



What are ideal applications for Boral TruExterior® Trim?


Boral TruExterior® Trim must never be used in structural or load bearing applications. Boral TruExterior® Trim is an ideal product for exterior trim applications such as soffit, frieze boards, fascia, window and door surrounds, etc.



How do I store Boral TruExterior® Trim?


Store Boral TruExterior® Trim on a flat, level surface. Keep the board covered and free from dirt and debris until you are ready to install.



Is Boral TruExterior® Trim available in a smooth surface?


Boral TruExterior® Trim is reversible, with one side smooth and the other featuring a wood grain pattern.



How is Boral TruExterior® Trim cleaned?


If Boral TruExterior® Trim gets dirty, clean using a mild soap and water solution. Pressure washing with a light fan setting also works well, but please note that pressure washers can damage building materials if the pressure is too high.



Can I use standard wood working tools to cut Boral TruExterior® Trim?


Standard tools can be used to cut or work with Boral TruExterior® Trim, but carbide tipped blades and bit are recommended for longer tool life.



Can Boral TruExterior® Trim be mitered?


Yes, Boral TruExterior® Trim takes a miter cut easily, and unlike many other trim products, fasteners can be nailed or screwed through the miter joint.



Are there any special safety precautions needed when working with Boral TruExterior® Trim?


Use the same basic precautions as you would when working with wood. Always wear eye protection and we recommend a dust mask for the small amount of nuisance dust generated when cutting or routing Boral TruExterior® Trim.



What type of fasteners can be used with Boral TruExterior® Trim?


Use high quality, exterior grade fasteners fit for conditions of the application. Boral TruExterior® Trim can be installed using standard nail guns or screws, and standard trim nails work well.



Do I need to pre-drill Boral TruExterior® Trim?


Pre-drilling is not necessary.



Are there any specific fastening instructions?


Fasteners should be placed every 24” or less, and within 2” of the end of a board.



Can Boral TruExterior® Trim be used at grade?


Because Boral TruExterior® Trim absorbs virtually no moisture*, it can be used at grade or in direct contact with masonry.



When installing do I need to leave space for expansion and contraction?


Boral TruExterior® Trim is extremely stable during periods of temperature and moisture change+ and no special measures are necessary to limit or control movement.



Do I need to use adhesives when installing Boral TruExterior® Trim?


No, however exterior grade acrylic caulk and adhesive may be used to smooth out joints or miters prior to painting.



How are nail holes repaired?


Nail holes can be repaired using a high grade acrylic caulk, wood fillers.



Does Boral TruExterior® Trim need to be primed?


Boral TruExterior® Trim comes with a factory applied primer. Because Boral TruExterior® Trim absorbs virtually no moisture, end cuts and field cuts do not need to be primed or sealed.



Are there any special instructions prior to painting?


Make sure the boards are free from dirt and debris, and are dry prior to painting, and be sure to follow your paint manufacturer's guidelines.



What type of paints can be used on Boral TruExterior® Trim?


Use any high grade exterior paint, of any color. Due to its dimensional stability, there is no need for special paints when painting Boral TruExterior® Trim a darker color.



Does Boral TruExterior® Trim have a warranty?


Boral TruExterior® Trim has a 20 Year Limited Warranty.


>Download the Boral TruExterior® Warranty Here >

How will paint perform on Boral TruExterior® Trim as compared to wood?


 Because Boral TruExterior® Trim is virtually impervious to water and does not cycle moisture*, paint will have improved performance on Boral TruExterior® Trim than it will on wood.



How long can Boral TruExterior® Trim be on the wall before painting?


Unpainted boards can be on the wall for up to 150 days before painting, but be sure to inspect the board for damage prior to painting.



Do I have to worry about termites?


No, Boral TruExterior® Trim is resistant to termite attacks* and is approved for ground contact.



What about mold and mildew?


Boral TruExterior® Trim does not support mold or mildew growth+ and does not contain a food source for mold or mildew, but mold and mildew can grow via food sources that may be on the surface of Boral TruExterior® Trim or virtually any material for that matter.



Can Boral TruExterior® Trim be used with all exterior claddings?


Any exterior cladding will be complimented by the addition of Boral TruExterior® Trim.



How will Boral TruExterior® Trim perform in coastal areas?


Boral TruExterior® Trim will achieve the same exceptional level of performance in the harshest of climates and conditions, provided fasteners correct for the specific conditions are used.



Boral TruExterior® Trim “Green”?


Composed with over 70% recycled content, Boral TruExterior® Trim is a leading product when it comes to environmental responsibility in the exterior trim category.



*Please see Boral TruExterior® Trim Limited Warranty and Product Data Sheet for property test results