XT/Walk-R

Thin-R

XT/Walk-R

Thin-R Walk-R is a composite of high performance PIR insulation with tough OSB board that provides safe access into insulated roof spaces. Walk-R maintains very high insulation values and complies with health and safety guidelines.

Whether building new or upgrading, due consideration towards the energy efficiency of your home can have many benefits, including reduced energy costs and improved living conditions. One of the easiest and most cost effective measures to take is to insulate the roof space. But how do you allow safe access to this space, water tanks, services and fittings? Walk-R is the solution and provides safe entry as well as improved insulation of the attic space.

Specification Clause

The ceiling insulation shall be Unilin Insulation Thin-R Walk-R manufactured to EN 13165 by Unilin Insulation, comprising of a rigid Polyisocyanurate (PIR) core between low emissivity foil facings bonded to OSB Board. The Walk-R 86mm with _ _ mm Mineral Wool to achieve a U-Value of _ _ _W/m2 K for the roof element. To be installed in accordance with instructions issued by Unilin Insulation.

An Environmental Product Declaration (EPD), certified by IGBC is available for the product insulation. Please contact technical support for further details

Refer to NBS clause P10 10, P10 135

Resistance ‘R’ Values

The resistance value of any thickness of Unilin insulation can be ascertained by simply dividing the thickness of the material (in metres) by its lambda value, for example: Lambda 0.022 W/mk and thickness 75mm -> 0.075/ 0.022 -> R-Value = 3.40. R-Values should be rounded down to the nearest 0.05 (m2K/W).

1. There is a growing awareness of the benefits of upgrading the energy efficiency of our homes by installing energy efficient measures. One of the easiest and most cost effective measures to take is to insulate the roof space, however consideration must be given to safe access to that roof space once the upgrade has taken place.

Walk-R is the solution for high performance lofts – with safe access

2. Walk-R allows maintenance access and storage in roof space areas.

Note

In every roof space where there are cold water tanks or services, for H&S reasons the Contractor should construct a permanent boarded walkway to access services. This walkway should be supported above the first layer of insulation to prevent any compaction of insulation below the walkway