GB2116309A - Roof space ventilator - Google Patents

Roof space ventilator Download PDF

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Publication number
GB2116309A
GB2116309A GB08230390A GB8230390A GB2116309A GB 2116309 A GB2116309 A GB 2116309A GB 08230390 A GB08230390 A GB 08230390A GB 8230390 A GB8230390 A GB 8230390A GB 2116309 A GB2116309 A GB 2116309A
Authority
GB
United Kingdom
Prior art keywords
ventilator
cylinder
plate
soffite
board
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Withdrawn
Application number
GB08230390A
Inventor
Glen Robert Hayes
David Bottomore
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.)
Glidevale Building and Products Ltd
Original Assignee
Glidevale Building and 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 Glidevale Building and Products Ltd filed Critical Glidevale Building and Products Ltd
Priority to GB08230390A priority Critical patent/GB2116309A/en
Publication of GB2116309A publication Critical patent/GB2116309A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)

Abstract

A ventilator for providing ventilation through a soffit board comprises a cylinder 2 through which air can flow, retaining projections 3 provided over at least part of the length of the outer surface of the cylinder, and a lip 6 protruding from the outer surface of the cylinder so that the lip abuts against the board when the cylinder has been inserted into an aperture in the board. <IMAGE>

Description

SPECIFICATION Roof space ventilator This invention relates to a roof space ventilator.
The continuing awareness, within the building industry, of the energy crisis had led to an increasing use of high levels of insulation in houses, and particularly in roof spaces.
The use of high levels of insulation in roof spaces has two principle effects. Firstly, the temperature of the roof becomes colder, and secondly ventilation of the roof space through the eaves of the house is impeded.
Consequently it is essential, to ensure that an adequate ventilation path is maintained for atmospheric air through the eaves into and out of the roof space. In addition it is also important to prevent the entrance of rain, insects and vermin into the roof space.
According to the present invention there is provided a ventilator for providing ventilation through a plate in the roof structure comprising a cylinder through which air can flow, a retaining formation provided over at least part of the length of the outer surface of the cylinder, and a lip protruding from the outer surface of the cylinder so that the lip abuts against the plate when the cylinder is substantially inserted into an aperture in the plate.
Advantageously the retaining formation is a screw thread so that the ventilator can be screwed into the aperture in the plate.
Preferably a mesh is provided across the crosssection of the cylinder so that air may not pass through the cylinder without passing through the mesh.
Desirably the retaining formations pass completely through the plate so that the cylinder is locked on one side of the plate by the lip and on the other side of the plate by the retaining formations.
The ventilator is conveniently made from a thermoplastics material, in which case it is preferably formed by injection moulding. The thermoplastic material can be stabilised for external use against degrading by ultra-violet radiation.
The ventilator of the present invention has a wide area of application. The ventilator may be applied to many roof structures requiring increased ventilation to reduce condensation. In particular it may be used on new houses of traditional construction which utilise overhanging eaves. The ventilator may also be readily applied to houses which are being upgraded by the installation of high levels of insulation.
Reference is now made to the accompanying drawings in which: Figure 1 is a perspective view of a ventilator according to the invention; and Figure 2 is a section of part of a roof structure at the eaves showing the ventilator in position in the roof structure.
Referring to Figure 1, a ventilator is generally designated 1 The ventilator has a cylindrical body 2, upon the outer surface of which are retaining formations 3, which are of a part-screw form.
The air flows through the channels 4 defined by a grid structure 5 provided inside the cylinder.
The grid structure 5 helps to increase the strength and rigidity of the ventilator 1.
A lip 6 is provided at the base of the device and a mesh 7 covers the grid structure 5.
Referring to Figure 2, the ventilator 1 is shown positioned in an aperture provided on a soffite board 8. The soffite board 8 is attached along one edge to a fascia board 9 which is connected to a rafter end 10. The rafter end 10 is supported on a wall plate 11 provided on top of the internal structure 12. The opposite edge of the soffite board 8 is attached to outer brickwork 1 3.
The ventilator 1 can be inserted into the aperture in the soffite board 8 by screw-motion.
When the ventilator 1 has been substantially inserted into the soffite board 8, then the lip 6 will abut against the lower surface of the soffite board in order to prevent further movement of the ventilator into the soffite board. Simultaneously the retaining formations 3 will press against the upper surface of the soffite board 8 so that the ventilator 1 is locked in position between the formations and the lip 6. The retaining formations 3 may be of a resilient nature in order to enhance this effect. Once the ventilator 1 is locked in position on the soffite board 8 it will not easily become free unless forced to do so by applying circular force to unscrew it.
The ventilator 1 permits a free passageway of air from outside the roof structure to inside the roof structure. The flow path of the air is indicated by the arrows A. The grid structure 5 and the mesh 7 prevent the ingress of vermin and insects into the roof structure.
There may be a plurality of soffite boards provided over the total length of the eaves, at both sides of the house. Each soffite board can have a number of preformed apertures for receiving ventilators. The total area of ventilation space per metre run of eaves should be at least 0.01 m2 in order to conform with standard building practice and with the mandatory requirements under the Public Health Act. The size and frequency of the apertures can be varied in order to provide an optimum arrangement, which will depend upon the size and strength of the soffite board.
Claims
1. A ventilator for providing ventilation through a plate in a roof structure comprising a cylinder through which air can flow, a retaining formation provided over at least part of the length of the outer surface of the cylinder, and a lip protruding from the outer surface of the cylinder so that the lip abuts against the plate when the cylinder is inserted into an aperture in the plate.
2. A ventilator according to Claim 1 in which the retaining formation is a screw thread so that the ventilator can be screwed into the aperture in the plate.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Roof space ventilator This invention relates to a roof space ventilator. The continuing awareness, within the building industry, of the energy crisis had led to an increasing use of high levels of insulation in houses, and particularly in roof spaces. The use of high levels of insulation in roof spaces has two principle effects. Firstly, the temperature of the roof becomes colder, and secondly ventilation of the roof space through the eaves of the house is impeded. Consequently it is essential, to ensure that an adequate ventilation path is maintained for atmospheric air through the eaves into and out of the roof space. In addition it is also important to prevent the entrance of rain, insects and vermin into the roof space. According to the present invention there is provided a ventilator for providing ventilation through a plate in the roof structure comprising a cylinder through which air can flow, a retaining formation provided over at least part of the length of the outer surface of the cylinder, and a lip protruding from the outer surface of the cylinder so that the lip abuts against the plate when the cylinder is substantially inserted into an aperture in the plate. Advantageously the retaining formation is a screw thread so that the ventilator can be screwed into the aperture in the plate. Preferably a mesh is provided across the crosssection of the cylinder so that air may not pass through the cylinder without passing through the mesh. Desirably the retaining formations pass completely through the plate so that the cylinder is locked on one side of the plate by the lip and on the other side of the plate by the retaining formations. The ventilator is conveniently made from a thermoplastics material, in which case it is preferably formed by injection moulding. The thermoplastic material can be stabilised for external use against degrading by ultra-violet radiation. The ventilator of the present invention has a wide area of application. The ventilator may be applied to many roof structures requiring increased ventilation to reduce condensation. In particular it may be used on new houses of traditional construction which utilise overhanging eaves. The ventilator may also be readily applied to houses which are being upgraded by the installation of high levels of insulation. Reference is now made to the accompanying drawings in which: Figure 1 is a perspective view of a ventilator according to the invention; and Figure 2 is a section of part of a roof structure at the eaves showing the ventilator in position in the roof structure. Referring to Figure 1, a ventilator is generally designated 1 The ventilator has a cylindrical body 2, upon the outer surface of which are retaining formations 3, which are of a part-screw form. The air flows through the channels 4 defined by a grid structure 5 provided inside the cylinder. The grid structure 5 helps to increase the strength and rigidity of the ventilator 1. A lip 6 is provided at the base of the device and a mesh 7 covers the grid structure 5. Referring to Figure 2, the ventilator 1 is shown positioned in an aperture provided on a soffite board 8. The soffite board 8 is attached along one edge to a fascia board 9 which is connected to a rafter end 10. The rafter end 10 is supported on a wall plate 11 provided on top of the internal structure 12. The opposite edge of the soffite board 8 is attached to outer brickwork 1 3. The ventilator 1 can be inserted into the aperture in the soffite board 8 by screw-motion. When the ventilator 1 has been substantially inserted into the soffite board 8, then the lip 6 will abut against the lower surface of the soffite board in order to prevent further movement of the ventilator into the soffite board. Simultaneously the retaining formations 3 will press against the upper surface of the soffite board 8 so that the ventilator 1 is locked in position between the formations and the lip 6. The retaining formations 3 may be of a resilient nature in order to enhance this effect. Once the ventilator 1 is locked in position on the soffite board 8 it will not easily become free unless forced to do so by applying circular force to unscrew it. The ventilator 1 permits a free passageway of air from outside the roof structure to inside the roof structure. The flow path of the air is indicated by the arrows A. The grid structure 5 and the mesh 7 prevent the ingress of vermin and insects into the roof structure. There may be a plurality of soffite boards provided over the total length of the eaves, at both sides of the house. Each soffite board can have a number of preformed apertures for receiving ventilators. The total area of ventilation space per metre run of eaves should be at least 0.01 m2 in order to conform with standard building practice and with the mandatory requirements under the Public Health Act. The size and frequency of the apertures can be varied in order to provide an optimum arrangement, which will depend upon the size and strength of the soffite board. Claims
1. A ventilator for providing ventilation through a plate in a roof structure comprising a cylinder through which air can flow, a retaining formation provided over at least part of the length of the outer surface of the cylinder, and a lip protruding from the outer surface of the cylinder so that the lip abuts against the plate when the cylinder is inserted into an aperture in the plate.
2. A ventilator according to Claim 1 in which the retaining formation is a screw thread so that the ventilator can be screwed into the aperture in the plate.
3. A ventilator according to Claim 1 or 2 in which the air flow path through the cylinder is divided into a plurality of channels by a grid structure provided within the cylinder.
4. A ventilator according to any preceding claim in which a mesh is provided across the cross-section of the cylinder so that air may not pass through the cylinder without passing through the mesh.
5. A ventilator according to any preceding claim in which the retaining formation passes completely through the plate so that the cylinder is locked on one side of the plate by the lip and on the other side of the plate by the retaining formations.
6. A ventilator according to any preceding claim in which the plate is a soffite board located at eaves of a house.
7. A ventilator according to any preceding claim which is made from a thermoplastics material.
8. A ventilator according to Claim 7 which is formed by injection moulding.
9. A ventilator substantially as herein described with reference to and as shown in the accompanying drawings.
GB08230390A 1982-02-26 1982-10-25 Roof space ventilator Withdrawn GB2116309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08230390A GB2116309A (en) 1982-02-26 1982-10-25 Roof space ventilator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8205651 1982-02-26
GB08230390A GB2116309A (en) 1982-02-26 1982-10-25 Roof space ventilator

Publications (1)

Publication Number Publication Date
GB2116309A true GB2116309A (en) 1983-09-21

Family

ID=26282085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08230390A Withdrawn GB2116309A (en) 1982-02-26 1982-10-25 Roof space ventilator

Country Status (1)

Country Link
GB (1) GB2116309A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162632A (en) * 1984-08-03 1986-02-05 Glidevale Building Prod Ventilator for providing ventilation through an aperture in a panel
US4580374A (en) * 1982-01-29 1986-04-08 Quinnell Geoffrey C Soffit and fascia system
WO2000055547A1 (en) * 1999-03-17 2000-09-21 Europlast S.P.A. Aeration grille for air intake ducts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4580374A (en) * 1982-01-29 1986-04-08 Quinnell Geoffrey C Soffit and fascia system
GB2162632A (en) * 1984-08-03 1986-02-05 Glidevale Building Prod Ventilator for providing ventilation through an aperture in a panel
WO2000055547A1 (en) * 1999-03-17 2000-09-21 Europlast S.P.A. Aeration grille for air intake ducts

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)