Roofs
Insulation is the most effective way to improve the energy efficiency of a home. Insulation of the building envelope helps keep heat in during the winter, but lets heat out during summer to improve comfort and save energy. Heat rises, and in an uninsulated home, a quarter of heat is lost through the roof. Insulating your loft, attic or flat roof is a simple and effective way to reduce heat loss and reduce your heating bills. Roof insulation is effective for decades and it should pay for itself many times over. 

Attic

Attic Schema
Is Your Attic Adequately Insulated?

Many homes already have some insulation between the joists. If your attic insulation is in poor condition, it is advisable to remove this and replace with new insulation. We recommended at least:100mm thickness between the joists - this is your first layer. If there is already attic insulation in place between your joists, the easiest option is to use Heatshield TopUp insulation roll. This is a high thermal performance insulation in 140mm thickness. It can be rolled out across the joists, so it’s really easy and quick to install. Adding Heatshield Top Up gives an extra 140mm of extra insulation above existing material - and becomes your second layer. For the best thermal performance where space is an issue, we recommend using our Metac high-performance mineral wool.

Performance

The current building regulations require a U value of 0.16 for attic floors. The U Value is defined as the rate at which heat is lost - and the lower the U Value, the better it is for your home. For help in achieving this U value, please contact our Technical team by clicking here.
 

Before you begin - here’s a checklist…

  • Secure stairs or ladder to your attic
  • Board or plank to stand on - don’t stand between joists as your foot may go through the ceiling!
  • Protective clothing - face mask and gloves • Lighting source in your attic - but if you have run a cable, please make sure that it’s secured and doesn’t cause a trip hazard
  • Pipes and tank insulation covers 
  • Ventilation points –check the eaves to find the ventilation grills

For further information on this application or the ISOVER products optimised for this purpose, please refer to our Residential Solution Guide, which can be downloaded here.

You can also download our 10 Step Insulate your Attic guide, here.
 
ISOVER provides a full range of solutions for a wide range of floor insulation scenarios. If the information you need cannot be found here, please do not hesitate to contact our Technical Team by following this link.

Related solutions

Related products: 

Pitched Roof

Insulation Between Rafters & Counter Batten in a Pitched Roof
ISOVER offers one of the safest options for insulating Pitched Roofs both in New Build and Renovation. Metac is a high performance mineral wool insulation ‘slab on a roll’ which when used with our Vario Airtightness and Moisture Control System offers one of the safest, thermal and acoustic performing systems on the market. The ISOVER Pitched Roof Solution offers:
 
  • High Performance thermal insulation 0.034W/mK
  • Excellent Acoustic Performance
  • A1 Fire rating – highest rating on the market
  • No slump during installation and life of the system
  • Friction fits in rafters eliminating any air gaps
  • Vario XtraSafe membrane ‘apply and release function’ for quick installation
  • Vapour permeable insulation for maximum protection from moisture and condensation issues
  • Metac Insulation can be full filled when used with our Vario system*
  • Excellent Indoor Air Quality – Eurofins Gold Comfort
  • Made from Recycled materials – up to 86% recycled glass
  • G3 Touch technology, great performance, gentle to use, good for the environment.

ISOVER complies with BS 5250:2011 Code of practice for control of condensation in buildings & ICP 2:2002 Irish Standard for Tiled and Slated Roof Constructions. These are the industry standards to ensure the building fabric is protected from moisture and condensation damage by ensuring adequate vapour control and ventilation measures are installed. 
Pitched Roof Solutions Benefits


For further information on this application or the ISOVER products optimised for this purpose, please refer to our Pitched Roof Solution Guide, which can be downloaded here.
 
ISOVER provides a full range of solutions for a wide range of pitched roof insulation scenarios. If the information you need cannot be found here, please do not hesitate to contact our Technical Team by following this link.

Related solutions

Related products: 

ISOVER Vario XtraSafe Membrane

The intelligent membrane for greater safety. Our new membrane offers a higher variability for optimum protection. The membrane can be simply and quickly installed by just one worker. Thanks to its innovative fleece material - it is self adhering to Vario XtraFix for easy application and release. Added intelligence to cover an Sd range of 0.3-20m.

ISOVER Vario XtraFix Strip

The self-adhesive fixative strip for positioning the Vario XtraSafe intelligent membrane. The affixing function enables rapid and precise installation of the Vario Xtra Safe Intelligent membrane, since it is simply stuck to the underlying surface and the membrane attached over it. Staple holes are avoided by the airtight surface.