CA1315515C - Underlining for roofs - Google Patents

Underlining for roofs

Info

Publication number
CA1315515C
CA1315515C CA000601440A CA601440A CA1315515C CA 1315515 C CA1315515 C CA 1315515C CA 000601440 A CA000601440 A CA 000601440A CA 601440 A CA601440 A CA 601440A CA 1315515 C CA1315515 C CA 1315515C
Authority
CA
Canada
Prior art keywords
layer
underlining
moisture
main support
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.)
Expired - Fee Related
Application number
CA000601440A
Other languages
French (fr)
Inventor
Veikko Rantanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ahlstrom Corp
Ahlstrom Consumer Products Ltd
Original Assignee
Ahlstrom Corp
Ahlstrom Consumer Products Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ahlstrom Corp, Ahlstrom Consumer Products Ltd filed Critical Ahlstrom Corp
Application granted granted Critical
Publication of CA1315515C publication Critical patent/CA1315515C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
    • E04D12/002—Sheets of flexible material, e.g. roofing tile underlay
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0092—Metallizing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/20—Fibres of continuous length in the form of a non-woven mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/043—HDPE, i.e. high density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B32B2419/06—Roofs, roof membranes

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)

Abstract

Abstract The present invention relates to an underlining for roofs which protects a building from both moisture and excessive heat. It comprises a metallized plastics layer, a main support layer and a moisture-absorbing non-woven layer, said layers being attached to each other by laminate layers.

Description

1315~1~

Underlining for roofs The present invention relates to a laminated underlining for roofs, which provides an efficient protection against both moisture and excessive heat.

An underlining protects a building during the period of construction and afterwards ensures the function of the actual roof layer. Leaks of the exterior roof and snow penetratlng the roof should not be allowed to moisten the underneath building structure, but rather the underlining acts to lead the draining water to the gutters and drainpipes. Roof structures are usually made to be easily ventilated in order to minimize the risk of damage from condensation. It is not yet possible to prevent condensation completely because of thermal leaks through structures and great fluctuations in temperatures. In poorly ventllated areas and with relatlon to the ventllation of a poorly constructed roof structures, the condensation of vapour penetrating from the interior to the cold ~urfaces on the roof frequently occurs. Thus an ob~ect of the underlining of the invention is to absorb the condensing water in order to prevent or minimize the moisture damages.
Present underlinings are normally reinforced plastic films or sheets which are impermeable to water. They can prevent penetration of moisture coming from above, but they also have a defect. The problem of these underlinings is that a lot of condensed water tends to gather on their underside since the provision of a sufficiently effective ventilation ls difficult. The water thus drains or drops onto the structures below, because an absorbing layer is not provided.
"

~ P711/E3 .

~. .

~ 3 1~

In addition to moisture, another problem is the temperature which may rise to a very high level inside the building during hot seasons. This is unpleasant to people. In warehouses, on the other hand, a high temperature may damage the material stored and even cause a danger of explosion, for example, in stores for explosives and at least premature ageing.

With the laminated underlining according to the present invention problems similar to those described above can be effectively solved or minimized. The present invention relates to an underlining with a waterproof and heat-reflecting upper side and a moisture-absorbing underside.

The laminated underlining according to the invention differs from conventional underlinings in such a manner that it protects the interior of the building from besides moisture also excessive heat.

The laminated underlining according to the invention is characterized in that it comprises at least the following layers:
A) a metallized layer of plastics B) a main support layer which is attached to the plastics layer by a laminate layer and is of such strength as to provide reliability in both installation and in operation and to sustain wind and snow loads, if present C) a non-woven la~er attached to the main support layer by a laminate layer.
The present invention will be described futher, by way of example, with reference to the accompanying drawing, which is a cross section through part of a laminated underlining according to the invention.

`` i31~

Layer 1 is a metallized plastlc film. The plastics material may be, for example, polypropylene or like material the grammage of which is 30 to 200 g/m2, or polyester, preferably polyethylene-terephthalate, the grammage of which S is 12 to 19 g/m2, preferably 16.7 g/m2. Metallization is effected through vaporization of aluminium.

The preferred material for the support layer 3 is HD (high density) polyethylene net, weighing at least 60 g/m2.
The moisture-absorbing layer 5 is an absorptive non-woven fabric, the grammage of which is preferably 25 to 31 g/m2, most preferably 28 g/m2.

Plastics material ~layers 2 and 4) applicable for lamination such as polyethylene, polypropylene or such can be used as a material for attaching the metallized plastics layer, the main support layer 3 and the non-woven fabric layer 5 to each other. A plastics material weighing 40 g/m2 is preferably used.

A laminated underlining for roofs, according to the invention, is produced by conventional, known methods. Most preferably the metallized plastic film and other web-formed materials are lamlnated together by extrusion lamination.

The laminated underlining according to the invention is an effective protection against moisture and excessive heat.
It is installed with its metallized layer outwards, whereby the metal surface reflects thermal rays back thus preventing the bulldings from becoming too hot. Due to its waterproof outer layer, the laminated underlining is also capable of leading off the water which has penetrated the actual roof layer. Any condensing water is absorbed by the non-woven fabric on the underside and said fabric dries easily. Thus the underside structure is saved from moisture damage.
.~ .
~ P711/E3 4 ` 131~

An underlining according to the invention is very strong as a result of its main support layer. It does not stretch, become waterlogged or brittle and it lasts well for many years.

The lamlnated underlining according to the invention is also easy to install. The lightness and on the other hand the strength of the material facilitate the installation and provide improved result.

Hesides in the roof, the underlining can be also installed in walls, thereby efficiently protecting the interior from both moisture and excessive heat.
A laminated underlining according to the invention is especially suited for buildings of light construction such as warehouses made of corrugated plate.

'"
' ..

.

Claims (6)

1. An underlining for roofs, characterized in that it comprises at least the following layers:
A) a metallized plastics layer (1) B) a main support layer (3) attached to the plastics layer (1) by a laminate layer (2), said main support layer providing reliability in both installation and operation and sustaining wind and snow loads, if present C) a non-woven layer (5) attached to the main support layer (3) by a laminate layer (4).
2. The underlining according to claim 1, characterized in that the material for the plastics layer is polyester, preferably polyethylene-terephthalate.
3. The underlining according to claim 1, characterized in that the material for the plastlcs layer (1) is polypropylene.
4. The underlining according to claim 1, characterized in that the plastics layer (1) is clad with aluminium.
5. The underlining according to claim 1, characterized in that the material for the support layer (3) is HD-polyethylene net.
6. The underlining according to claim l, characterized in that the laminate layers (2) and (4) are of polyethylene, polypropylene or like material.
CA000601440A 1988-06-02 1989-06-01 Underlining for roofs Expired - Fee Related CA1315515C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI882600A FI79484C (en) 1988-06-02 1988-06-02 Surface covering material for buildings.
FI882600 1988-06-02

Publications (1)

Publication Number Publication Date
CA1315515C true CA1315515C (en) 1993-04-06

Family

ID=8526570

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000601440A Expired - Fee Related CA1315515C (en) 1988-06-02 1989-06-01 Underlining for roofs

Country Status (5)

Country Link
CA (1) CA1315515C (en)
DE (1) DE3918104A1 (en)
FI (1) FI79484C (en)
NO (1) NO892228L (en)
SE (1) SE468950B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021086270A1 (en) * 2019-10-30 2021-05-06 Sakunapaibool Monthon Patterned prefabricated roof and wall sheets rearranged with metal

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4225666A1 (en) * 1992-08-04 1994-02-10 Ruetgerswerke Ag Root-proof, bituminous waterproofing membrane and process for its production
DE19519675B4 (en) * 1994-06-01 2006-04-13 Kebulin-Gesellschaft Kettler Gmbh & Co. Kg Multilayer polymer bitumen. Oberlagsbahn
DE19504017A1 (en) * 1995-02-07 1996-08-08 Borries Horst Von Vapour-permeable building foil prodn., esp. for roof sarking
DE4428304A1 (en) * 1994-08-10 1996-02-15 Borries Horst Von Lining for roofs with heat-insulating material between rafters
DE10041526B4 (en) * 2000-08-24 2005-09-29 Küchenmeister Anlagenbau Gmbh Shielding Thermoreflexionsfolie for the construction sector, especially as underlayment
FR2861773A1 (en) * 2003-10-31 2005-05-06 Siplast Sa SOFT SCREEN FOR ROOFING, AND ROOF COMPRISING SUCH A SCREEN

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO780771L (en) * 1978-03-06 1979-09-07 Platon As CEILING CANVAS.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021086270A1 (en) * 2019-10-30 2021-05-06 Sakunapaibool Monthon Patterned prefabricated roof and wall sheets rearranged with metal

Also Published As

Publication number Publication date
FI79484C (en) 1990-01-10
FI882600A0 (en) 1988-06-02
DE3918104A1 (en) 1989-12-14
SE8901943D0 (en) 1989-05-30
FI79484B (en) 1989-09-29
NO892228D0 (en) 1989-06-01
SE468950B (en) 1993-04-19
NO892228L (en) 1989-12-04
SE8901943L (en) 1989-12-03

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Legal Events

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