With LVL now being offered with pressure treatment, it is
approved for outdoor decks
. This offers the professional deck builder the ability to eliminate the waviness that can occur in traditional lumber framed decks.
Are LVL beams weather resistant?
In addition to the standard natural finish, a
water-resistant coating
called SiteCoteTM is available for extra weather protection during construction. LVL is accepted by all major code evaluation agencies including: BOCA, CCMC, DSA – California, HUD, ICBO, LA City, New York City, New York State, SBCCI and Wisconsin.
Can LVLs be outside?
For example,
preservative-treated LVLs are currently not offered for outdoor use
, since some wood species used in LVL production don’t readily absorb the chemicals used in the preservative treatment process, and because of other factors, such as continuous glue lines between the veneers.
Can parallam be exposed to weather?
Parallam® Plus PSL is suitable for applications that are
exposed directly to weather and water
—such as decks, pavilions, and pool enclosures—and direct ground contact applications like deck posts. Column members can even be used in saltwater splash applications.
Is LVL moisture resistant?
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
…
Can LVL be exposed to the weather?
Further to this they state that
the LVL/LGL surface CANNOT be exposed horizontally to weather
& that water entrapments are NOT permitted. Therefore, unpainted or unprotected LVL/LGL Beams, are unsuitable for weather exposed projects.
Can LVL get wet during construction?
Wood rot can and will start when the moisture content of the wood
reaches 20 percent
. … The wood needs to remain damp and wet all the time for wood rot to advance. It’s much more likely that you’ll start to see mold growth in as little as 48 hours as mold spores are everywhere on your home construction site.
Can engineered beams be used outside?
Engineered beams must be treated for use outdoors
. Glulam beams are manufactured by gluing layers of dimensional lumber together. Parallam beams are manufactured by gluing together aligned wood stands and bonding them using a microwave process.
Is LVL timber waterproof?
First developed in the early 1970’s, laminated veneer lumber (LVL) is a high-strength engineered timber product formed by assembling wood veneers (thin sheets of wood that are uniformly thick) and bonding them together with a ‘type A’ phenolic adhesive which
provides a waterproof bond
.
How big of a LVL beam do I need?
Design a beam width based on the fact that the typical width of an LVL beam is
1 3/4 inches
. The width can be increased by laminating in multiples of 1 3/4 inches. Beam width should be 1/4 to 1/3 beam depth.
How big of a beam do I need to span 20 feet?
For 20 foot span, size of continuous beam for 2-3 storey residential building, using thumb rule, is
about 9′′×12′′ in
which beam width is 9′′ and beam depth is 12′′ providing with 2nos of 12mm bar at top, 2nos of 16mm bar at bottom and 2nos of 12mm crank bar of Fe500 with stirrup
[email protected]
′′C/C and M20 grade of concrete ratio (1 …
What is the difference between LVL and PSL?
Parallel Strand Lumber (PSL) is manufactured from veneers laid into long, parallel strands and bonded together. … Laminated Veneer Lumber (LVL) is a commonly available engineered product that is manufactured
similarly
to PSL.
How far can a PSL beam span?
* The span and load tables in this guide cover beam spans up to
60 feet
; however, 2.2E Parallam® PSL beams can be delivered in lengths up to 66 feet.
What does LVL timber stand for?
Laminated Veneer Lumber
(LVL)
Laminated Veneer Lumber is created using multiple layers of thin wood which is bonded together with heavy-duty glue. … This not only makes the product stronger, but more durable than conventional lumber.
Can you treat LVL?
Microllam® LVL and TimberStrand® LSL is appropriate for
dry-use applications only
(generally not directly exposed to precipitation) and cannot be pressure treated.
Can a lam beam get wet?
Keep beams and columns covered to protect them from direct exposure to sun and rain, especially in hot, dry climates. Ensure that there is no direct ground contact or contact with moist or wet surfaces like fresh concrete or wet surfaces. Use dry lumber blocking to provide ventilation by elevating beams and columns.
