GB2487974A - Rafter insulation sheet - Google Patents
Rafter insulation sheet Download PDFInfo
- Publication number
- GB2487974A GB2487974A GB1102480.9A GB201102480A GB2487974A GB 2487974 A GB2487974 A GB 2487974A GB 201102480 A GB201102480 A GB 201102480A GB 2487974 A GB2487974 A GB 2487974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rafter
- insulation sheet
- layer
- insulation
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 148
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 239000006261 foam material Substances 0.000 claims abstract description 9
- 239000011810 insulating material Substances 0.000 claims abstract description 9
- 239000011888 foil Substances 0.000 claims abstract description 5
- 125000006850 spacer group Chemical group 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 44
- 229920000582 polyisocyanurate Polymers 0.000 claims description 9
- 239000011495 polyisocyanurate Substances 0.000 claims description 9
- 239000011241 protective layer Substances 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
- E04D13/1612—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
- E04D13/1625—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for supporting the insulating material between the purlins or rafters
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
- E04B1/7658—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
- E04B1/7662—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres comprising fiber blankets or batts
- E04B1/7666—Connection of blankets or batts to the longitudinal supporting elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
- E04D13/1612—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
- E04D13/1637—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters the roof purlins or rafters being mainly insulated from the interior, e.g. the insulating material being fixed under or suspended from the supporting framework
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
Abstract
The sheet 1 comprises a layer of insulating material 5, a layer of adhesive 3 and a layer of protective material 4 which is peelable from the insulation in use. The insulating material may form the core of the sheet and may be a foam material, preferably polyisocyante. The sheet may further comprise a layer of foil 2 on at least one face. A method of covering a rafter with insulation is also disclosed where, in use, the sheet may be employed to insulate the sides or internal face of rafters. The sheet may be used to insulate the sides of rafters and may also act as a spacer between an internal surface of a roof and an insulating board positioned between rafters.
Description
Roofing Insulation System The present invention relates to a roofing insulation system.
Roof insulation is required in virtually all types of buildings. With the current drive to improve the energy efficiency of all types of insulation it is clear that improvements in relation to roofing insulation would be desirable.
One of the problems with current systems of roofing insulation is the time spent in fitting insulation between and over rafters.
When roof voids are insulated in the plane of the roof covering of a building, between and under the rafters insulation boards must be fixed in position.
Squeeze' insulation boards are available that are fixed' in between the rafters by being squeezed to fit between them and then expanding again to enable them to grip against the rafters on either side. Installing insulation between the rafters in this way, however, leaves a gap in the insulated surface where the rafters are. In order to prevent cold bridging this gap needs to be covered, filled or cloaked with more insulation either on the outer side of the rafters prior to installing the roof covering materials in the case of new roofs or on the underside of the rafters especially in the case of refurbishment works where the roof covering is already in place.
Currently the solution to this problem is to cut pieces of insulation to the size of the rafter before attaching them to the rafter. This is extremely time-consuming and labour intensive, and it can be very difficult to cut sheets of insulation to size in a confined space.
Furthermore, when insulation is to be retrofitted to an existing building an air gap must be maintained between the interior surface of the roof and the insulation such that ventilation can prevent interstitial condensation.
Currently the solution to this problem is to attach timber battens to the sides of the rafters before putting the insulation in. This is time-consuming and does results in the rafters not being insulated in the gap between the roof surface and the squeeze' insulation The present invention seeks to address these problems.
According to one aspect of the present invention there is provided a rafter insulation sheet comprising at least one layer of insulating material, a layer of adhesive and a layer of protective material covering the adhesive, the layer of protective material being peelable from the insulation sheet so as to reveal the adhesive layer.
Preferably the rafter insulation sheet comprises at least one layer of a foam material. Preferably a layer of foam material forms the core of the insulation sheet.
In one embodiment the rafter insulation sheet comprises a layer of polyisocyanurate. Preferably the layer of polyisocyanurate forms the core of the insulation sheet.
Preferably the rafter insulation sheet comprises a layer of foil on at least one face or side of the rafter insulation sheet.
In one embodiment the rafter insulation sheet is wider than the rafter with which it is to be used. In that embodiment the rafter insulation sheet is preferably between 50mm and 200mm wide preferably the rafter insulation sheet is between 100 and 175 mm wide. More preferably the rafter insulation sheet is around 150mm wide.
In one embodiment the rafter insulation sheet is not as wide as the rafter with which it is to be used. In that embodiment preferably the rafter sheet is between 20mm and 100mm wide. More preferably the rafter sheet is between 25mm and 50mm wide.
Preferably the thickness of the rafter insulation sheet is between 20mm and 50mm in thickness. More preferably the rafter insulation sheet is around 25mm in thickness.
According to a second aspect of the present invention there is provided a method of covering at least part of a rafter with a layer of insulation comprising the steps of: i) providing a rafter insulation sheet comprising at least one layer of insulating material, a layer of adhesive and a layer of protective material covering the adhesive; ii) peeling the protective layer off the rafter insulation sheet; iii) positioning the rafter insulation sheet such that it covers at least part of a rafter.
In one embodiment the rafter insulation sheet is positioned such that it covers the internal face of a rafter. In that embodiment preferably the rafter insulation sheet is at least the same width as the rafter with which it is used. More preferably the rafter insulation sheet is wider than the rafter with which it is used. In that embodiment the rafter insulation sheet is preferably between 50mm and 200mm wide preferably the rafter insulation sheet is between 100 and 175 mm wide. More preferably the rafter insulation sheet is around 150mm wide.
In another embodiment the rafter insulation sheet is positioned such that it covers part of a side of a rafter and provides a spacer between an internal surface of a roof and a second sheet of insulating material. In that embodiment the rafter insulation sheet is preferably between 20mm and 100mm wide. More preferably the rafter insulation sheet is between 25mm and 50mm wide. In that embodiment the rafter insulation sheet may be affixed to the second sheet of insulating material or may be affixed to the rafter, or may be affixed to an internal surface of the roof.
Preferably the rafter insulation sheet comprises at least one layer of a foam material. Preferably a layer of foam material forms the core of the insulation sheet.
In one embodiment the rafter insulation sheet comprises a layer of polyisocyanurate. Preferably the layer of polyisocyanurate forms the core of the insulation sheet.
Preferably the rafter insulation sheet comprises a layer of foil on at least one face of the rafter insulation sheet.
Preferably the thickness of the rafter insulation sheet is between 20mm and 50mm in thickness. More preferably the rafter insulation sheet is around 25mm in thickness.
Preferably the length of the rafter insulation sheet between around 10cm and 300cm. More preferably the length of the rafter insulation sheet is around 150cm and 250cm.
The present embodiment will now be described with reference to the accompanying drawings, of which: Figure 1 is a front view of a rafter insulation sheet made in accordance with a first embodiment of the present invention; Figure 2 is a cross-section of the rafter insulation sheet of Figure 1 showing the different layers of which it is made up; Figure 3 is a front view of a rafter sheet made in accordance with a second embodiment of the present invention; Figure 4 is a cross-section of the rafter insulation sheet of Figure 1 showing the different layers of which it is made up; Figure 5 is a cross-section of an un-insulated roofing area; Figure 6 is the roofing area of Figure 5 showing one the rafter insulation sheet of Figure 3 affixed to the internal surface of the roof; Figure 7 is the roofing area of Figure 6 with insulation boards having been positioned; Figure 8 is a cross-section of a board with two rafter insulation sheets as shown in Figure 3 attached thereto; Figure 9 is a schematic diagram showing the rafter insulation sheets of Figures 1 and 3 in use and in position in the roofing area of Figure 5 Referring to the drawings, Figure 1 shows a front view of a rafter insulation sheet 1. Figure 2 is a cross section through the sheet of Figure 1.
The rafter insulation sheet comprises a polyisocyanurate core 5, an adhesive layer 3 and a layer of protective material 4.
Protective layer 4 may be formed of any suitable material such as a plastic film. Protective layer 4 may be peeled off rafter insulation sheet 1 50 as to reveal adhesive layer 3 below.
Adhesive layer 3 is a layer of any suitable adhesive that is strong enough to affix rafter insulation sheet 1 to a surface and hold it in position.
Rafter insulation sheet 1 has a layer of tin foil 2 positioned on the opposite face to that comprising protective layer 9.
In the present embodiment rafter insulation sheet 1 is around 15cm wide, 2.5cm in thickness and between 1.5 and 2.5 metres in length.
Turning to a second embodiment of the present invention as shown in Figures 3 and 4, there is provided a rafter insulation sheet 6. Figure 4 is a cross section through the sheet of Figure 3.
The rafter insulation sheet 6 comprises a polyisocyanurate core 10, an adhesive layer 8 and a layer of protective material 9.
Protective layer 9 may be formed of any suitable material such as a plastic film. Protective layer 9 may be peeled off rafter insulation sheet 6 so as to reveal adhesive layer 8 below.
Adhesive layer 8 is a layer of any suitable adhesive that is strong enough to affix rafter insulation sheet to a surface and hold it in position.
Rafter insulation sheet 6 has a layer of tin foil 7 positioned on the opposite face to that comprising protective layer 9.
Thus it can be seen that in the present embodiment rafter insulation sheet 6 has the same layer structure as rafter insulation sheet 1. However, rafter insulation sheet 6 is narrower in width than rafter insulation sheet 1.
In the present embodiment rafter insulation sheet 6 is around 10cm wide, 2.5cm in thickness and between 1.5 and 2.5 metres in length.
Rafter insulation sheet 1 is of a width equal or greater than the width of a rafter surface that it is intended to cover.
Figures 5 to 9 shows the respective uses of rafter insulation sheets 1 and 6.
Figure 5 shows an un-insulated roofing area 11, incorporating a roof 13 having an internal surface 14. Roof 13 is supported by rafters 12.
Turning to Figures 6 and 7, there is shown a first use of rafter insulation sheet 6, wherein protective film 9 has been removed and a number of the rafter insulation sheets have been adhered to the internal surface 14 of roof 13, each adjacent to the sides 24 of rafters 12.
Insulation boards 15 may then be squeezed between rafters 12, the resilience of the insulation boards holding the boards in place between the rafters by exerting pressure between sides 24 of adjacent rafters 12. Thus rafter insulation sheets perform a dual purpose. Not only do they prevent the insulation boards being pushed against the internal surface 14 of roof 13, thereby maintaining a necessary air gap 16 for ventilation, but the rafter insulation sheets also insulate the sides 24 of rafters 12, thus reducing cold bridging through rafters 12.
It should be noted that insulation boards 15 are standard roofing insulation boards comprising a panel of a foam material, typically polyisocyanurate, and having a layer of tin foil on at least one of its faces.
Turning to Figure 8 there is shown an alternative approach to using rafter sheets 6. In this approach rafter insulation sheets 6 are affixed to insulation boards instead of affixing the rafter insulation sheets to the internal surface 14 of roof 13. The insulation sheets are affixed on a face 19 of insulation board adjacent to the edges 17, 18 of the board.
Insulation boards 15 may then be squeezed into position, the boards being prevented from being pushed against the internal surface 14 of roof 15 by rafter insulation sheets 6. Further, by having positioned rafter insulation sheets 6 adjacent to the edges of insulation board 15, the sides 24 of rafters 12 are provided with insulation as insulation sheets 6 abut or are in close proximity to rafters 12.
Although not shown in the appended drawings, it will be apparent that rafter insulation sheets 6 may be affixed directly to the sides 24 of rafters 12. In such an embodiment it may be preferable for the rafter insulation sheet to be of the same or different dimensions. It will also be apparent that one or more sides 19, 20 of rafter insulation sheet 6 may have a covering of tin foil in order to increase its insulating properties.
It will be apparent that rafter insulation sheets 6 may be applied along the full length of rafters 12 so as to provide maximum insulation against cold bridging of the rafter and also providing the air gap between insulation boards 15 and roof 13.
Alternatively short strips of rafter insulation sheets 6 could be used to provide the air gap between the insulation boards and the roof while at the same time providing at least some insulation for the rafter.
Turning to Figure 7 it can be seen that the rafters 12 still act as a cold bridge between the external surface 21 of roof 13 and the internal faces 22 of the rafters 12.
Rafter insulation sheets I may be employed to solve this problem. By peeling off protective layers 4, rafter insulation sheets 1 may be affixed over internal faces 22 of rafters 12.
Rafter insulation sheets I may be adhered to the internal faces 22 of rafters 12 and/or to the internal faces 23 of insulation boards 15.
It will be apparent that in those embodiments where rafter insulation sheet 1 is only as wide as rafter 12 it is not possible to apply the rafter insulation sheet to the full width of the rafter 12 and to the insulation boards 15. More than one rafter insulation sheet could be used to cover the width of a single rafter, but it is preferable that there is provided a rafter insulation sheet that is at least as wide as rafter 12.
When necessary rafter sheets I and 6 may be cut to an appropriate length by a person installing them.
It will be apparent that many variations of the invention are possible without departing from the scope of the appended claims.
Claims (17)
- Claims: 1. A rafter insulation sheet comprising at least one layer of insulating material, a layer of adhesive and a layer of protective material covering the adhesive, the layer of protective material being peelable from the insulation sheet so as to reveal the adhesive layer.
- 2. The rafter insulation sheet of claim I comprising at least one layer of a foam material.
- 3. The rafter insulation sheet of claim 1 or 2 wherein a layer of foam material forms the core of the insulation sheet.
- 4. The rafter insulation sheet of any preceding claim comprising a layer of polyisocyanurate.
- 5. The rafter insulation sheet of any preceding claim comprising a layer of foil on at least one face or side of the rafter insulation sheet.
- 6. The rafter insulation sheet of any preceding claim wherein the rafter insulation sheet is wider than the rafter with which it is to be used.
- 7. The rafter insulation sheet of any preceding claim wherein the rafter insulation sheet is not as wide as the rafter with which it is to be used.
- 8. Preferably the thickness of the rafter insulation sheet is between 20mm and 50mm in thickness.
- 9. A method of covering at least part of a rafter with a layer of insulation comprising the steps of: i) providing a rafter insulation sheet comprising at least one layer of insulating material, a layer of adhesive and a layer of protective material covering the adhesive; ii) peeling the protective layer off the rafter insulation sheet; iii) positioning the rafter insulation sheet such that it covers at least part of a rafter.
- 10. The method of claim 9 wherein the rafter insulation sheet is positioned such that it covers the internal face of a rafter.
- 11. The method of claim 10 wherein the rafter insulation sheet is at least the same width as the rafter with which it is used.
- 12. The method of claim 9 wherein the rafter insulation sheet is positioned such that it covers part of a side of a rafter and provides a spacer between an internal surface of a roof and a second sheet of insulating material.
- 13. The method of any of claims 9 to 12 wherein the rafter insulation sheet comprises at least one layer of a foam material.
- 14. The method of any of claims 9 to 13 wherein the rafter insulation sheet comprises a layer of polyisocyanurate.
- 15. The method of any of claims 9 to 13 wherein the rafter insulation sheet comprises a layer of foil on at least one face of the rafter insulation sheet.
- 16. A rafter insulation sheet substantially as described herein with reference to the accompanying drawings.
- 17. A method of covering at least part of a rafter with a layer of insulation substantially as described herein with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1102480.9A GB2487974A (en) | 2011-02-11 | 2011-02-11 | Rafter insulation sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1102480.9A GB2487974A (en) | 2011-02-11 | 2011-02-11 | Rafter insulation sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201102480D0 GB201102480D0 (en) | 2011-03-30 |
| GB2487974A true GB2487974A (en) | 2012-08-15 |
Family
ID=43859325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1102480.9A Withdrawn GB2487974A (en) | 2011-02-11 | 2011-02-11 | Rafter insulation sheet |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2487974A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3307306A (en) * | 1961-07-28 | 1967-03-07 | Adsure Inc | Insulation blanket structure |
| DE3937353A1 (en) * | 1989-11-09 | 1991-05-16 | Hermann Diehl | Insulating pitched roof construction - has insulation between rafters covered with semi-permeable film which is grooved by inverted channel section fitted round over each rafter |
| US6579586B1 (en) * | 2000-09-28 | 2003-06-17 | Johns Manville International, Inc. | Encapsulated insulation batt assembly |
| US20040123539A1 (en) * | 2002-12-27 | 2004-07-01 | Fay Ralph Michael | Facing and faced insulation assembly |
| FR2851596A1 (en) * | 2003-02-24 | 2004-08-27 | Mireille Barthalais | Roof board acoustic insulation device for building, has thermo acoustic insulator placed between rafters, thermo acoustic joint on face of rafters, and thermo acoustic tape placed on top of rafters after assembling on frame |
| DE102007031501A1 (en) * | 2007-07-06 | 2009-01-15 | Saint-Gobain Isover G+H Ag | Insulation element consists of insulation material section with lamination layer together with adhesive surface |
-
2011
- 2011-02-11 GB GB1102480.9A patent/GB2487974A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3307306A (en) * | 1961-07-28 | 1967-03-07 | Adsure Inc | Insulation blanket structure |
| DE3937353A1 (en) * | 1989-11-09 | 1991-05-16 | Hermann Diehl | Insulating pitched roof construction - has insulation between rafters covered with semi-permeable film which is grooved by inverted channel section fitted round over each rafter |
| US6579586B1 (en) * | 2000-09-28 | 2003-06-17 | Johns Manville International, Inc. | Encapsulated insulation batt assembly |
| US20040123539A1 (en) * | 2002-12-27 | 2004-07-01 | Fay Ralph Michael | Facing and faced insulation assembly |
| FR2851596A1 (en) * | 2003-02-24 | 2004-08-27 | Mireille Barthalais | Roof board acoustic insulation device for building, has thermo acoustic insulator placed between rafters, thermo acoustic joint on face of rafters, and thermo acoustic tape placed on top of rafters after assembling on frame |
| DE102007031501A1 (en) * | 2007-07-06 | 2009-01-15 | Saint-Gobain Isover G+H Ag | Insulation element consists of insulation material section with lamination layer together with adhesive surface |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201102480D0 (en) | 2011-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |