Insulation Frequently Asked Questions and Insulating Tips

  1. What happens to Expol Under floor insulation in a fire?
    Expol Under floor insulation contains a flame retardant additive to inhibit accidental ignition. It is however an organic material and will butn, so normal care should be taken.

  2. Does Expol Under floor insulation give off any toxic fumes?
    The level of toxicity of Expol Under floor insulation in a fire is no greater than that of burning timber.

  3. What if my sizes differ from Expol Under floor insulation standard sizes?
    The flexi cut edges of Expol Under floor insulation panels allow the panels to be adjusted to varying floor joist spacings.

  4. Do I need to use fixings for an existing floor?
    Most panels will be supported by a friction fit. Only use the fixings to secure any loose panels and to support panels where the under-floor is subject to wind.

  5. Do I need to use fixings for a new floor?
    Yes. When fixing from the top of the joist the nylon fixing is placed flush with the top of the joist, this ensures the panel sits flush with the underside of the floor.
    Usually a maximum of two fixings are used per panel.

  6. How does Expol Under floor insulation come?
    Expol Under floor insulation is plastic wrapped and delivered to your merchant in bundles of approximately 6 square metres.

  7. Insulation Vs Dampness
    If you have a dampness problem in your home, correct this prior to insulating your floor.
    Click here to find out more about Insulation vs Dampness

Insulation - Tips and Facts

  1. Insulating floors and ceilings makes a home cosy and welcoming.
  2. By saving energy in the home, you are not only helping yourself, you are also helping the planet.
  3. If a house already has a thin and ineffective insulation, it is worthwhile adding an extra layer on top.
  4. The money you spend now in insulation will soon pay for itself in reduced energy bills and additional comfort in the future.
  5. Insulation performance is measured by R-value, the higher the R-value the more effective it is.
  6. Even if the air temperature is cold, a person standing on a warm floor will feel more comfortable. Damp houses are unhealthy to live in, insulating under your floor will make your home dryer.
  7. If you have cold and draughty floors, you will waste power heating your home.

 

 


Product Resources
Underfloor insulation brochure
Branz Appraisal Number 256
For our technical information on Expol insulation please refer to our BRANZ Appraisal No. 256 (2006)