IES67536B2

IES67536B2 - An insulation panel

Info

Publication number: IES67536B2
Authority: IE
Inventors: John Nash
Original assignee: Aerobord Limited
Priority date: 1996-01-11
Filing date: 1996-01-11
Publication date: 1996-04-03
Also published as: IES960015A2

Abstract

The invention relates to an insulation panel (10) for use between structural members such as rafters. The insulation panel (10) has a plurality of primary incisions (20) disposed substantially perpendicular to the plane of the panel (10) and extending alternatively into opposing faces (12,13) of the panel (10). A pair of secondary incisions (22) is formed symmetrically about each primary incision (20), each secondary incision (22) being inclined towards the adjacent primary incision (20). The panel (10) can be readily compressed to fit between structural members, such as rafters, while maintaining a tight seal with the rafters thus ensuring efficient insulation .

Description

An Insulation Panel The present invention relates to insulation panels. Sn particular, the invention relates to an insulation panel for use between structural members such as rafters.

According to the present invention there is provided an insulation panel having first and second major faces substantially parallel to the plane of the panel; the panel comprising a plurality of primary- incisions extending into the first and second major faces; and a plurality of secondary incisions extending into the first and second major faces, the primary incisions extending a distance which is approximately half the thickness of the panel and the secondary incisions extending beyond the primary incisions.

Preferably, the primary incisions extend alternately and perpendicularly into the first and second faces.

Preferably, the secondary incisions are provided in pairs which are symmetrically formed about each primary incision, each secondary incision of the pair of secondary incisions being inclined towards said primary incision.

Advantageously, the secondary incisions are inclined at an angle of between 70° and 85° to the plane of the panel.

An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of an insulation panel according to the invention; and 367536 -2Figure 2 is an end view of the insulation panel of Figure Ί.

Referring now to the drawings, there is shown an insulation panel generally indicated at 10 according to the invention. The insulation panel 10 is substantially rectangular in shape and comprises first and second major faces 12,13, side faces 14 and end faces 16.

The panel 10 may be manufactured from any suitable semi-rigid foam plastics, for example, expanded polystyrene.

An optional substantially rectangular flange 18 is provided on each side face 14. Each flange 18 extends longitudinally between the two end faces 16 and is flush with the major face 12.

Typically, each flange 18 may be 30 mm in depth and may project 19 mm from the side face 14.

The panel 10 is provided with a plurality of primary incisions 20 in both major faces 12, 13. Each primary incision 20 runs substantially perpendicular to the major face in which it is formed and substantially parallel to the side faces 14. The primary incisions 20 formed in one major face are staggered relative to the primary incisions 20 formed in the other major face. The primary incisions 20 formed in one major face are located midway between the primary incisions 20 in the opposing face.

Typically, the width of each primary incision 20 may vary from 1.5 to 2 mm. The depth of each primary incision 20 is approximately half of the thickness of the pane, 10.

A pair of secondary incisions 22 is provided about each primary incision 20. Each secondary incision 22 runs -3longitudinallv along the major faces 12, 13 but is inclined towards the adjacent primary incision 20 as it extends into the panel 10. Each secondary incision 22 extends further into the panel 10 than its adjacent primary incision 20. The secondary incisions 22 are dimensioned and disposed so as not to encroach upon any primary incision 20 or any other secondary incision 22.

Typically, the panel 10 may be 130 mrn in thickness and 380 mm in width. The primary incisions 20 may be 65 mm in depth, the secondary incisions 22 may extend 90 mm below the major face 12, 13 in which they are formed and are inclined towards the adjacent primary incision 20 at an acute angle of 70° to 85°, preferably approximately 80 degrees, to the respective major face 12, 13. The mouth of each secondary incision 22 is located approximately 13 mm from the mouth of the adjacent primary incision 20.

The arrangement of primary and secondary incisions 20, 22 allows the panel 10 to be compressed in the direction indicated by the arrows A. in the compressed state, the side faces 14 remain in a plane substantially perpendicular to that of the major faces 12, 13.

In use, the panel 10 may be employed as an insulation pane! by inserting it between structural members such as rafters (not shown). If flanges 18 are provided, they rest on adjacent rafters providing a continuous insulating layer. As the panel 10 deforms it may be compressed to fit into spacings of varying sizes betweenadjacent rafters.

It will be seen that the respective incisions 22 extending from the major faces 12 and 14 overlap in the inner region of the panel 10. Thus, the amount of material removed from the inner region of the panel is greater than that removed from -4ths regions of the panel adjacent respective major faces 12 and 14. Thus, when the side faces 14 are compressed between such rafters, the portion of the incisions 20, 22 adjacent the major faces 12 and 14 close, while the portion of the incisions 20, 22 in the inner region remain open to form respective pockets of air below the surface of the major faces. These pockets of air act to enhance the insulation provided by the panel 10. it wiil be seen that because the secondary incisions 22 incline towards their associated primary incision 20, the panel 10 compresses uniformly and distortion of the panel when being fitted between rafters is mitigated.

Furthermore, the panel 10 can readily expand and contract as the size of the aperture between adjacent rafters changes due to constructional spacing inconsistencies thermal contraction and/or expansion. Thus the panel 10 maintains a tight seal with the rafters and ensures efficient insulation.

Claims

1. CLASMS: Ί. An insulation panel having first and second major faces substantially parallel to the plane of the panel; 5 the panel comprising a plurality of primary incisions extending into the first and second major faces; and a plurality of secondary incisions extending into the first and second major faces, the primary incisions extending a distance which is approximately half the 10 thickness of the panel and the secondary incisions extending beyond the primary incisions

2. An insulation panel as claimed in Claim 1 wherein the primary incisions extend alternately and perpendicularly 15 into the first and second faces.

3. An insulation pane! as claimed in Claim 1 or 2, wherein the secondary incisions are provided in pairs which are symmetrically formed about each primary 20 incision, each secondary incision of the pair of secondary incisions being inclined towards said primary incision.

4. An insulation pane! as claimed in Claim 3 wherein the 25 secondary incisions are inclined at an angle of between 70° and 85° to the plane of the panel.

5. An insulation panel substantially as hereinbefore described with reference to and as illustrated in the 30 accompanying drawings.