GB2107769A - Light transmitting panel - Google Patents
Light transmitting panel Download PDFInfo
- Publication number
- GB2107769A GB2107769A GB08129830A GB8129830A GB2107769A GB 2107769 A GB2107769 A GB 2107769A GB 08129830 A GB08129830 A GB 08129830A GB 8129830 A GB8129830 A GB 8129830A GB 2107769 A GB2107769 A GB 2107769A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- light transmitting
- roof
- layers
- plastics
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
- E04D3/28—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of glass or other translucent material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/54—Slab-like translucent elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
- E04D3/28—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of glass or other translucent material
- E04D2003/285—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of glass or other translucent material with specially profiled marginal portions for connecting purposes
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Building Environments (AREA)
Abstract
A light transmitting panel for use as a roof light 1 comprises two layers 3, 4 of translucent glass reinforced plastics material, with sheets of plastics bubble sheeting 5 provided in the cavity between said layers to improve thermal insulation. Other light transmitting filling media are envisaged, as alternatives to the plastics bubble sheeting 5.
Description
SPECIFICATION
Light transmitting building members
This invention relates to light transmitting building members, and is particularly aithough not exclusively concerned with roof lights.
Roof lights are widely used in the roofs of large buildings such as factories, where they may comprise sheets of translucent material inserted at intervals in a roof which is composed of sheets of other material (such as steel or asbestos). Over recent years, much attention has been directed to improving heat insulation in buildings, and sheet material for such roofs may comprise a relatively thick layer of insulating material (such as, for example, polyurethane foam) sandwiched between two relatively thin layers of load bearing material (such as, for example, steel). Such sheet material can provide quite effective insulation, but the insulation is not so readily available where roof lights are to be provided.Therefore, conflicting requirements arise in that it is evidently desirable to provide as much natural light in a building as possible, by way of roof lights, to minimize the costs of artificial lighting. On the other hand, if thermal insulation afforded by roof lights is poor, it is desirable to provide as few roofing lights as possible.
Attempts to solve this problem have been made by providing roof lights which comprise a plurality of spaced skins, with cavities therebetween. It has been found that the insulating properties of such roof lights can be considerably enhanced.
However, such insulating properties still tend to be considerably less than those afforded by the composite sheet materials mentioned above. Also, where more than two spaced skins are provided in a roof light, the light transmission factor of the roof light may be reduced to an unacceptable level.
Preferred embodiments of the present invention aim to provide roof lights which may be improved in the foregoing respects.
More generally, according to a first aspect of the present invention, there is provided a light transmitting building member comprising two spaced layers of light transmitting material defining a cavity therebetween, and a light transmitting filling medium contained in said cavity.
Advantageously, said layers may be of glass reinforced plastics material. However, any other suitable light transmitting material may be used.
Preferably, the filling medium comprises at least one sheet of plastics bubble sheeting. By "plastics bubble sheeting" is meant a sheet of transparent or translucent plastics material formed with bubbles of air or gas therein. Such sheeting
has been introduced recently for use in the packaging industry. ?e plastics material of the sheeting is preferabiy ultraviolet resistant.
Preferably, the building member is a roof light.
For a better understanding of the invention and to show how the same may be carried into effect,
reference will now be made, by way of example, to the accompanying drawings, in which:
Figure 1 is a perspective view of a roof light; and
Figure 2 illustrates a sheet of plastics bubble sheeting, on an enlarged scale.
The roof light 1 illustrated in Figure 1 comprises two layers 2 and 3 of translucent glass reinforced plastics material, which define therebetween a cavity 4. Such a design of roof light is available at the present time, and has been used quite successfully in providing natural light through a roof, whilst affording improved thermal insulation, due to the provision of the air gap 4. However, the insulation of such a roof light is not as good as the insulation provided by presently available opaque composite sheet material of which roofs may be constructed. Thus, for example, condensation may form under such a roof light in use, and often, an occupant of the building may be misied into thinking that the roof light is leaking, because of the condensation.
To improve the roof light 1, we fill the cavity 4 with three sheets of the plastics bubble sheeting 5 shown in Figure 2. The sheeting 5 is of a type readily available at the present day for packaging purposes, and comprises two very thin flexible plastics films which are sandwiched together with prominent bubbles 6 of air therebetween. The plastics films may have a very high light transmission coefficient, and the three sheets of sheeting 5 together do not significantly reduce the light transmission factor of the roof light 1 when positioned in the cavity 4. However, in use, it will be appreciated that air is trapped in the cavity 4 between the sheets 5 and the layers 2 and 3, and, of course, air is also trapped in the bubbles 6 themselves. Thus, the heat insulating properties of the roof light 1 incorporating the sheets 5 is considerably enhanced.
It may be appreciated that roof lights incorporating the sheets 5 may be produced in a very simple and economical manner. Firstly, the layers 2 and 3 are manufactured from G.R.P. in a conventional manner. The three sheets 5 (or more or less as desired) are then glued into position in one of the layers 2 and 3. It will be appreciated that the sheets 5 may be readily deformed (and compressed to some extent) to the shape of the cavity 4. The layers 2 and 3 are then glued or bonded together.
Different filling media may be employed as alternatives to the sheets 5 of plastics bubble sheeting. There may be used any suitable filling medium which both transmits light and serves to restrict the circulation of air in the cavity 4. For example, there may be used chopped or crumpled cellophane or other clear material Chips or other particles of translucent or transparent plastics material may be used. Plastics material produced as individual bubbles may also be used.
It is to be appreciated that the illustrated roof light 1, when provided with the sheets 5 of plastics bubble sheeting, affords another feature which can be particularly important in factory environments. The sheets 5 thoroughly diffuse the light passing through the roof light, so that under strong natural light conditions, the roof light does not tend to throw a vary bright and well defined window of light into an area which may be lit in a relatively subdued fashion. The use of the sheets 5 may then facilitate the use of very clear plastics skins (such as 2 and 3) of a roof light, which skins have not been acceptable in certain applications previously, because of their inability to diffuse light.
It will be appreciated that building members such as the roof light 1 may be used as wall lights or in any other suitable fashion.
Claims (6)
1. A light transmitting building member comprising two spaced layers of light transmitting material defining a cavity therebetween, and a light transmitting filling medium contained in said cavity.
2. A building member according to Claim 1, wherein said layers are of glass reinforced plastics material.
3. A building member according to Claim 1 or 2, wherein the filling medium comprises at least one sheet of plastics bubble sheeting.
4. A building member according to Claim 3, wherein the plastics material of the sheeting is ultraviolet resistant.
5. A building member according to any preceding claim, being a roof light.
6. A light transmitting building member substantially as hereinbefore described with reference to the accompanying drawing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08129830A GB2107769B (en) | 1981-10-02 | 1981-10-02 | Light transmitting panel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08129830A GB2107769B (en) | 1981-10-02 | 1981-10-02 | Light transmitting panel |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2107769A true GB2107769A (en) | 1983-05-05 |
GB2107769B GB2107769B (en) | 1985-05-30 |
Family
ID=10524910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08129830A Expired GB2107769B (en) | 1981-10-02 | 1981-10-02 | Light transmitting panel |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2107769B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2245218A (en) * | 1990-05-03 | 1992-01-02 | Eugene Emmanuel Cepeda | Cellular window insulation and method for its application |
FR2671819A1 (en) * | 1991-01-21 | 1992-07-24 | Everite Sa | LIGHTING COVER PANEL, AND BUILDING COVER COMPRISING SUCH A PANEL. |
GB2378976A (en) * | 2001-08-21 | 2003-02-26 | Hambleside Danelaw Ltd | Insulated glazing panel |
ITMI20122061A1 (en) * | 2012-12-03 | 2014-06-04 | Magni Plast S P A | PERMEABLE PANEL IN THE LIGHT, PARTICULARLY FOR THE IMPLEMENTATION OF ROOFS OR WALLS OR WINDOWS OF INDUSTRIAL, COMMERCIAL, CIVIL OR SIMILAR BUILDINGS. |
-
1981
- 1981-10-02 GB GB08129830A patent/GB2107769B/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2245218A (en) * | 1990-05-03 | 1992-01-02 | Eugene Emmanuel Cepeda | Cellular window insulation and method for its application |
FR2671819A1 (en) * | 1991-01-21 | 1992-07-24 | Everite Sa | LIGHTING COVER PANEL, AND BUILDING COVER COMPRISING SUCH A PANEL. |
EP0496690A1 (en) * | 1991-01-21 | 1992-07-29 | Everite S.A. | Translucid covering panel and roof comprising such panel |
GB2378976A (en) * | 2001-08-21 | 2003-02-26 | Hambleside Danelaw Ltd | Insulated glazing panel |
GB2378976B (en) * | 2001-08-21 | 2005-03-09 | Hambleside Danelaw Ltd | Thermally efficient rooflight and skylight |
ITMI20122061A1 (en) * | 2012-12-03 | 2014-06-04 | Magni Plast S P A | PERMEABLE PANEL IN THE LIGHT, PARTICULARLY FOR THE IMPLEMENTATION OF ROOFS OR WALLS OR WINDOWS OF INDUSTRIAL, COMMERCIAL, CIVIL OR SIMILAR BUILDINGS. |
Also Published As
Publication number | Publication date |
---|---|
GB2107769B (en) | 1985-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3731449A (en) | Structural panel | |
US4305982A (en) | Shatterproof insulating laminate | |
US6699558B1 (en) | Light-diffusing, insulating, glazing system component | |
US4283451A (en) | Light-transmitting roofing and cladding panel | |
DE3276358D1 (en) | Flexible heat insulating and heat reflecting layered product | |
RU2164994C2 (en) | Transparent building member with at least one aerogel tile reinforced by fiber and/or mat | |
FR2721252B1 (en) | Laminated glazing with low energy transmission for transport vehicle. | |
CA2058497A1 (en) | Fire-protection and safety composite glass panel | |
US20050048231A1 (en) | Glazing panels | |
KR950013358A (en) | Composite plastic film and greenhouse structure using the same | |
DE3473741D1 (en) | Multi-layered hollow panel and its method of manufacture | |
SE8202463L (en) | ELECTRIC COVER GLASS PANELS | |
GB2107769A (en) | Light transmitting panel | |
GB2061354A (en) | Double-walled cellular plate | |
EP0832735A3 (en) | Fire-protected layered system | |
ES8308812A1 (en) | Plastic interlayer, method of making and application in laminated glass. | |
RU94010055A (en) | THERMAL INSULATION COMBINED SYSTEM | |
AU5835394A (en) | Composite building partition element which can be transparent and/or insulating and process for the manufacture of a number of said elements | |
SE8007380L (en) | SOUND-INSULATING SANDWICH TYPE INTERNAL | |
GB2140348A (en) | A laminate | |
FI905834A0 (en) | LJUSGENOMSLAEPPLIG VAERMEISOLERING. | |
GB1194724A (en) | Improvements in Light Transmitting Heat-Insulating Panels | |
GB2078838A (en) | Shatterproof insulating glazing panel | |
ATE26146T1 (en) | COMPOSITE MATERIAL IN THE FORM OF SELF-SUPPORTING PANELS. | |
JPS6311226Y2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19931002 |