Weathertex Trimtec 1220 x 915 x 5.5mm Hardboard Underlay

Description

Weathertex Trimtec 1220 x 915 x 5.5mm Hardboard Underlay
– 1220mm x 915mm Sheet Size
– 5.5mm thickness
– Sold by the 1.116m2 Sheet

Weathertex Trimtec Underlay is a high quality, highly durable underlay
product designed to be used over strip timber, particleboard, plywood and concrete
floors to provide a flat, uniform, indent resistant base for sheet floor coverings.
Trimtec Underlay is manufactured using an ISO 9001 certified process and complies
with AS/NZS 1859.4:1997 – Reconstituted wood based panels – Hardboard. Installation
of Trimtec Underlay will be compliant to AS/NZ 1884-2012

• Highly resistant to indentations caused by point loads from items such
  as table legs, chairs, stools, book cases, wall units and high heel shoes.
• 100% Australian made and Owned. Pre-conditioned to the Australian
  climate, Trimtec Underlay is unlikely to be adversely affected by stability issues.
• Provides a flat, uniform, indent resistant surface on which to lay
  resilient sheet or tile floor coverings.
• Trimtec Underlay is tough, flexible and resistant to cracking or
  fracturing.
• The smooth surface of Trim rec Underlay allows even and economical
  application of adhesive.
• Easy to work and fix with normal wood working tools and flooring
  installation equipment.

• Dimensions: 1220 mm x 915 mm x 5.5 mm
• Tolerances (Ex mill):
  1. Length: ± 1.0 mm
  2. Width: ± 1. 0 mm
  3. Thickness: ± 0.15 mm
• Squareness: Variation in diagonals not more than 1.0 mm
• Sheet Area: 1.12 m2
• Packaging: Bulk packs of (120 sheets)
• Physical properties
1. Density 960 kg/m3
2. Mass/unit area 5.3 kg/m2
3. Modules of rapture 30 MPa
4. Modules of elasticity 4000 MPa
5. Impact strength 4000J/m2
6. Internal bond strength1000 kPa
7. Thermal conductivity 0.11 W/mK
8. Hygro-expansivity 0.25% change in face
9. dimensions over 50% – 90% RH

• Adequate underfloor ventilation is essential to prevent distortion,
  possible decay and excessive movement of the sub floor, frame support, underlay and
  overlay.
• If inadequate ventilation exists, subsequent damage to the floor
  covering material or adhesive system will occur.
• This is especially important where impervious final floor coverings are
  used as these prevent the escape of moisture through the floors.
• The moisture content of timber, plywood or particleboard subfloors and
  their structural supports must be checked before the underlay is
  installed.
• Acceptable moisture content range is 9% – 14%.
• Where existing timber, plywood or particleboard floors are to be used as
  a sub-floor for hard underlay installation, any worn, rough, cupped or warped
  surfaces must be repaired.
• Imperfections such as hollows, cracks and uneven joints will affect the
  quality of the finished floor.
• The sub floor must be sanded, filled or replaced to achieve a plane,
  smooth surface prior to the installation of the underlay.
• The sub-floor must retain its structural adequacy.

• Trimtec Underlay must be conditioned to allow it to reach equilibrium
  with its surroundings before being fixed to the sub-floor.
• The most prominent cause of joint show through is failure to properly
  condition underlay.
• To condition Trimtec Underlay each individual sheet must be exposed to
  air circulation in the environment for which it is to be installed for at least 24
  hours before being fixed.
• Keep clear of sharp protrusions.
• Stack panels flat on pallets or timber runners in a dry area with
  moderate temperature and reasonably constant relative humidity.
• Storage in direct sunlight, damp locations or hot, dry buildings should
  be avoided.
• Trimtec Underlay must not be conditioned or fixed when extreme weather
  conditions (such as relative humilities of less than 25% or greater than 90%) are
  temporarily experienced.
• In these situations conditioning and fixing must be delayed until normal
  weather conditions return.

• Trimtec Underlay is designed to be installed smooth side up.
• Starting on a straight wall with the long edges of the underlay
  perpendicular to the sub floor joins.
• Trimtec Underlay is to be laid using a brick pattern as shown in the
  diagram (See attached Technical data Sheet for instructions)
• It is crucial to the performance of the product that the following are
  provided to allow room for expansion:
1. Allow a 3 mm gap around the perimeter of the wall
2. Allow a 0.4 mm gap between sheets

• Trimtec Underlay can be cut using the following tools:
  1. Utility knife (heavy duty blade – not break away type).
     Using a utility knife is the easiest method of cutting Trimtec Underlay.
     Simply score the surface of the underlay where the cut is required and
     snap the underlay.
     It will break cleanly at the score.
  2. Circular saw
  3. Jig saw (fine tooth) or timber blade
  4. Hand saw (fine tooth) or panel saw

ADHESIVES FOR TIMBER SUB·FLOORS
In addition to mechanical fixings, adhesives must be used when Trimtec Underlay is
fixed to plywood, particleboard or pine sub-floor.

• The following adhesives are suitable:
1. – Polymer 1017 Polyurethane Adhesive or
2. – Bostik Ultraset Adhesive
3. – Giltgrip Super C Adhesives

 
ADHESIVES FOR CONCRETE SUB-FLOORS

• Flexible Polyurethane sealants such as:
1. – Polymer 1017 Polyurethane Adhesive or
2. – Bostik Ultraset Adhesive

• 20-215A