Loss of heat through floors on concrete surface beds is experienced as a cold underfoot condition, particularly during winter when the supporting soils cool due to hygroscopic action of water. In order that rooms are heated or cooled energy efficiently, the floors need to be insulated from the surrounding soil bed.

Typical uses as IsoBoard Surface Bed Insulation:

Placed between floor screeds and surface bed to prevent room heat loss.

Installed below refrigerated slabs of ice-rinks, freezer rooms and certain agricultural applications to minimise heat flow from warmer surface beds into cold room environments.

Installed below screeds of domestic and commercial applications where under-floor heating systems are installed.

Typical uses as IsoBoard Surface Perimeter Insulation:

Installed new or as a retro-fit to residential homes having under floor heating.

Suggested Bill of Quantity Specification: Surface Bed Insulation

"ISOBoardÆ high density 34-36kg/m3 rigid extruded polystyrene 100% closed cell insulation board of 25 mm thickness and 600mm width with tongue and groove joints laid on plastic sheeting(elsewhere) under reinforced concrete beds."

Suggested Bill of Quantity Specification: Perimeter Insulation

"ISOBoardÆ high density 34-36kg/m3 rigid extruded polystyrene 100% closed cell insulation board of 25 mm thickness and 600mm width installed upright against outer foundation wall to depth of 600mm secured with soil ballast."

Site Handling Instructions

Store boards flat within original packaging until required.

Boards are to be protected from adverse weather conditions and direct sunlight for the storage period.

Handle and install with care to prevent damage to board edges.

IsoBoard is readily cut to length on site using a sharp blade or hack-saw, or can be supplied cut-to-length by the Regional Distribution Centres.

The recommended under surface bed installation method for IsoBoard

IsoBoard should be applied to a prepared soil foundation which is clean and true, after soil poisoning, and after application of a damp proof course.

Jointing between boards should be effected with the tongue and groove or shiplap profiles.

The reinforced concrete slab is poured above the IsoBoard, in accordance with the specifications of the Structural Engineer, with the reinforcing spaced above the board.

Care must be excercised to prevent board flotation during pouring.

The recommended surface periIsoBoard is installed vertically against the inner or outer foundation wall to a depth of 600mm, with the tongue towards the top. Secure IsoBoard with soil ballast.meter installation method for IsoBoard

Ordering of IsoBoard

For this application boards in lengths of 2400mm are practical.

Order boards with shiplap or tongue and groove edge profiles all round.

Consult your nearest IsoBoard sales office for advice concerning the appropriate thickness of IsoBoard required for your application.

Generally in South Africa 25mm thick board will suffice for domestic applications whilst up to 150mm will be required in the ice rink / freezer room applications.

Schematics

Please click on the thumbnails below to see the detail on the schematics.

Figure 1	Figure 2

Printable and Downloadble Pages on IsoBoard Surface Bed Insulation	Agrement Certificates
	To download the Agrement Certificates click on above link
Download PDF Pages
To download PDF format, right-click on the links below, and choose "Save Target As".
Printable Pages