Can LVL beams be pressure treated?
Microllam® LVL and TimberStrand® LSL is appropriate for dry-use applications only (generally not directly exposed to precipitation) and cannot be pressure treated. Neither product is suitable for the pressure treatment process due to material density and adhesive content.
Do they make treated LVL beams?
PWT Treated LVL is the only manufacturer-treated LVL, and it is covered by a 25-year limited, transferable warranty. PWT Treated LVL is protected against damage caused by fungal rot, decay and wood-destroying insects, including Formosan termites (interior or exterior usage).
Can versa lam beams be used outdoors?
Painting the members and leaving them exposed to weather is not allowed. Wrapping the members in a waterproof material that allows moisture to build up on the members either through leakage or condensation is not allowed.
Can LVL beams get wet?
Wetting during construction may lead to temporary elevated moisture content and dimensional changes. Once covered, the I-joists or LVL will ultimately dry and re-equilibrate to the ambient humidity conditions, but some expansion or swelling may remain after redrying.
Are LVL water proof?
How is LVL made? LVL is made from rotary-peeled veneers that are bonded together under heat and pressure into large panels that are cut into range of widths. Phenol-formaldehyde resins provide waterproof bonds.
How much is treated LVL?
Treated LVL today costs about 60% more than treated lumber. Treated LVL is stronger, however, and may replace larger profile treated lumber. So for a typical deck, upgrading to treated LVL costs about $2-3 more per square foot.
What is the difference between a Microlam and LVL?
Microllam is a brand name for Laminated Veneer Lumber (LVL) Beams manufactured by Weyerhaeuser. LVL beams are one of several different types of engineered lumber products on the market today.
Is there an exterior grade LVL?
Until recently it was not possible to treat LVL for exterior use. Pacific Wood Tech has introduced a treated LVL for above ground exterior use, including beams and joists. PWT Treated LVL can be used for deck beams, deck joists.
What is stronger glulam or LVL?
The laminated beam is stronger but more expensive and used when bigger cross-sections are required. Generally made from hardwood, rather than the lvl softwood.
Can you drill a hole in a LVL?
Whenever possible, avoid drilling vertical holes through LVL beams unless the beam width is at least 3-1/2 inches. Prior to drilling any vertical holes, an engineer or architect qualified in wood design should be consulted.
Does it hurt an LVL to get wet?
Will an LVL beam rot?
Paul Fisette, director of building materials and wood technology at the University of Massachusetts Amherst and a JLC contributing editor, responds: Like any wood that is neither treated nor naturally decay-resistant, an LVL — which is typically made of southern pine or Douglas fir — will rot when exposed to excessive …
Which is stronger LVL or PSL?
Laminated Veneer Lumber (LVL) Its shear strength is superior to LSL but doesn’t quite match PSL’s ability to withstand bending stress.
Is LVL beam waterproof?
Why choose microllam LVL beams?
Microllam® LVL beams work well in applications all over the house. They can easily be built-up on site to reduce heavy lifting. No matter where they’re used, they install quickly with little or no waste. Resists warping, splitting and shrinking while supporting heavy loads
Can microllam LVL be pressure treated?
Microllam® LVL should only be used in dry (interior use) applications and should not be pressure treated. LVL is not suitable for the pressure treatment process due to material density and glue lines.
What is a treated glulam beam?
Treated Glulam Beams. Treated glulam beams are pressure treated with a Hi-Clear II, a clear industrial wood preservative. It leaves a light honey color finish that is virtually undetectable to the naked eye. It is intended for above ground exterior applications and is most common for raised deck beams.
Why can’t LVL be pressure treated?
LVL is not suitable for the pressure treatment process due to material density and glue lines. Also some wood species used in Microllam® LVL production may not be appropriate to absorb the chemicals used in treatment.