Underfloor Insulation Installation Instructions

The following information is written on every bag of product;

  1. Number of panels
  2. Nominal coverage area
  3. R-Value (Fitted Insulation value)
  4. Nominal weight
  5. Installation instructions
  6. Nominal length, width and thickness of each piece
  7. Description of contents
  8. Name and address of manufacturer
  9. Statement of compliance with the standard AS/NZS 4859.1:2002

Fitting
Ensure you have a sharp knife or saw for cutting and trimming panels.
Fit panels with the 20mm ridges touching the underside of the floor.

Underfloor Insulation

Trimming Insulation PanelsSelect the correct panel width for the correct joist space, as you might have ordered more than one size.

Trim the edges of the panels if they are oversize, by cutting one or more of the
con-cen-tina edges and always ensure the width of the panel is over size to create a snug fit between the floor joists.

 

Fixings
Non corrosive nylon fixings with a stainless steel nail are available for purchase ONLY TO SECURE LOOSE PANELS AND TO SUPPORT PANELS WHERE THE UNDER-FLOOR IS SUBJECT TO WIND. Most panels will self support between the joists with a friction fit.Fixing Insulation Panels

When insulating new floors, nail two fixings at opposite corners per panel, flush with the top of the joist, the panel will then sit flush with the under side of the floor.

Pipes and plumbing

To accommodate obstacles such as pipes and plumbing, use your sharp knife to cut the panel and notch around those difficult areas. It is acceptable to use a polyeurathane foam material to seal off the more difficult areas. This product is available from most Hardware stores.

To retain maximum insulation, ensure all air gaps are sealed around the out side perimeter

 

Electrical cables

CAUTION: ELECTRICAL CABLES AND EQUIPMENT PARTIALLY OR COMPLETELY SURROUNDED WITH BULK THERMAL INSULATION MAY OVERHEAT AND FAIL. THIS APPLIES TO WIRING INSTALLED PRIOR TO 1989. READ THE FOLLOWING INSTRUCTIONS:

For cables installed prior to 1989 ensure all insulation is fitted leaving the cables exposed.
If fitting around down lights or other electrical appliances, leave a 150mm clearance around the appliance.

Wireguard TapeTo separate all other electrical cables from Expol under-floor insulation use Expol wire guard, a strip of paper used to wrap around or cover the electrical cabling so the cables are protected by the paper to avoid contact with the polystyrene. Expol Wire Guard can be purchased in 20metre rolls. Utilise your waste

Wireguard TapeIf you are left with product over, instead of burning or dumping, why not insulate another area in your home, such as your hot water cupboard or ceiling where insulation may have been removed.

If you have small scraps left, break into pieces the size of your thumb nail and mix with the soil in your pot plants to aid drainage and root growth.

 

 

Fixings Required For Installation

Recognised installers
If you would prefer to have Expol under-floor Insulation installed by a recognised installer, find an installer near you.

BRANZ AppraisedBRANZ Appraisal

Expol Under-floor Insulation has been appraised by BRANZ and complies with Certificate No. 256 (2006).

Please refer to the certificate for further technical information. Copies of the BRANZ Appraisal are available by calling our toll free number 1-800 86 33 73, or by downloading here.

Insulation standard
Expol Under-floor Insulation complies with the Australian and New Zealand Standard AS/NZS 4859.1:2002.

Installed Insulation Under FloorManufacturing standard
All panels have a yellow stripe down one edge to confirm compliance with manufacturing standard AS 1366 Part 3 1992 for SL grade

These instructions were updated 1st July 2005

We at Expol trust that for years to come, you will enjoy the benefits of fitting Expol Under-floor Insulation beneath your home.
Copyright © 2009 Expol Limited