Handling, Storage & Care - Timberweld

HANDLING AND STORAGE INSTRUCTIONS

FOR TIMBERWELD BEAMS, DECK, & JOISTS

RECEIVING – TRUCK – all materials should be counted and identified as shown on the bill of lading. Any transit damage, shortages and discrepancies must be noted on the bill of lading and Timberweld should be called before the driver leaves the jobsite. Delivery F.O.B. truckbed jobsite means unloading is the contractors responsibility.

YOUR signature represents acceptance of tallies and the condition of the content.

RECEIVING – RAIL - if material has been damaged in transit, do not unload until the inspector for the delivering carrier has been contacted and acknowledges the damage and presents you, the consignee, with a written inspectors report. It is the responsibility of the consignee to file damage claims against the carriers.

HANDLING & PROTECTION - after delivery is the responsibility of the purchaser. Laminated members should not be dragged or dropped. Care in handling is essential to prevent damage to finished surfaces. Materials are kiln dried and should be protected accordingly. Laminated material stored at the jobsite should be treated with care.

Beams should be stored with the wrapper seam down. If covered storage is not available, the material should be blocked above the ground away from moisture. The top and sides should be covered with moisture resistant paper. Individual wrapped members should have the wrapping slit or punctured on the bottom side to permit drainage of moisture and condensation. Moisture resistant and waterproof wrapping should be left intact during erection until the members are enclosed within the building. If wrapping is removed at connection points, it should be replaced after the connection is made. Temporary wrap or plastic cover should allow air to circulate to avoid condensation.

If sealer has been applied, it will not necessarily prevent staining by foreign matters nor should sealer be considered as a waterproofing. Members left open to weathering could result in discoloration or checking. If your material has a factory applied stain, caution must be used in protection, handling, and erection. Touch-up is common and may be required.

ERECTION - beams should be place with wrapper seam up. Planning and laying out materials, locating connections, checking for fit, elevations and dimensions are essential steps by professional erection contractors. Structural frames and components need bracing or temporary support for winds and alignment during erection. If the erection needs exceed the expertise of the erector, professional or experienced help should be obtained.

CLEANING - techniques for cleaning include: use scraper on planed surfaces; rub with burlap, mixture of bleach water and detergent; “Dekswood” wood cleaner, a Flood Co. product from your paint store.

DRYING – CURING - allow laminated timbers time to adjust to environment. Hot air causes accelerated surface drying that induces surface cracks or seasoning checks.

Timberweld thanks you for your business and cooperation

BEWARE - - - - of Seasoning Checking - - -

  • A Jobsite Problem
  • An In-Use – Environment Problem
  • Not a Manufacturing Problem. Timberweld is not responsible for seasoning checks that occur after delivery.

- Changes in moisture content of beams cause swelling or shrinking.
- Rapid drying of surface causes season checks.

Tips to Avoid or Reduce Season Checking:

  • Do not allow beams to pick up moisture at the jobsite.
  • Be sure all wrapped beams have short slit in paper to allow moisture accumulated from blowing snow, rain, or condensation to drain.
  • Severe wet conditions could permanently deform surfaces so that season checking may not completely disappear.
  • In-Use - - Inside or outside, exposed end grain should be covered, end sealed, or painted or stained until moisture content stabilizes.
  • Rapid surface drying from wind, sunlight, and direct heat will cause accelerated surface drying and create seasoning checks.

Seasoning checks are a normal phenomena if laminated timbers are not properly stored, installed, protected or used. Seasoning checks are not a Timberweld responsibility.

Hostile environments include:

  • Closed area with fresh concrete or plaster may cause beams to pick up moisture.
  • Direct or indirect exposure to humid rainy weather.
  • Prolonged exposure to ultraviolet rays may, even through protective wrap, cause uneven bleaching.

Hostile ways to accelerate surface drying and season checking:

  • Wind, direct sun exposure, heat ducts, dry warm air
  • Dry cold air
  • Vaulted ceilings that collect hot air
  • Clerestories with Southerly windows
  • Radiated heat

Friendly ways to treat your laminated timber:

  • Slow the surface drying, allow beams time to season, for moisture from the core of the wood to migrate to the surface, and allow time for the check to close.
  • Use humidifiers, avoid direct heat, introduce humidity from the outside, move air from ceiling with fans.
  • Apply stain or surface protection that will help slow down the migration of moisture from the surface.

There is no way to force the migration of moisture from the core of the beam to the surface areas. It takes time. The larger the beam, the more time. Be patient. Most seasoning checks will disappear in time.

Seasoning checks often follow along glue lines and are mistaken for de-laminating. Laminated timber products are engineered with safety factors that take into account nature growth defects, seasoning checking and other minor timber deviations.

The Timberweld staff will be glad to counsel with you to help evaluate the seriousness of a checking problem. Timberweld does not assume any responsibility for repair or maintenance unless it is determined that there were manufacturing defects that deviate from the specification. Structural problems from seasoning checks are uncommon.

Timberweld is not responsible for moisture, storage, erection, or other environment conditions at your jobsite. We encourage you to care for your laminated timber so they will serve you for generations to come.

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Timberweld products are natural wood. Here is the information you will need to care for your new beams, deck, or joists during and after construction.
 

Timberweld Sales/Engineering
PH: 406-652-3600,  1-800-548-7069
FAX: 406-652-3668

P.O. Box 21000,  Billings, MT  59104
1643 24th St. W,  Billings, MT  59102

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Columbus, MT

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