CA2144806A1 - Roof hatch for attic access - Google Patents
Roof hatch for attic accessInfo
- Publication number
- CA2144806A1 CA2144806A1 CA 2144806 CA2144806A CA2144806A1 CA 2144806 A1 CA2144806 A1 CA 2144806A1 CA 2144806 CA2144806 CA 2144806 CA 2144806 A CA2144806 A CA 2144806A CA 2144806 A1 CA2144806 A1 CA 2144806A1
- Authority
- CA
- Canada
- Prior art keywords
- hatch
- curb
- cap
- flange
- roof
- 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.)
- Abandoned
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 241001465754 Metazoa Species 0.000 abstract description 3
- 238000010348 incorporation Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 238000012216 screening 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
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
- E04D13/1473—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof
- E04D13/1475—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof wherein the parts extending above the roof have a generally rectangular cross-section
-
- 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
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
- E04D13/0325—Sky-lights; Domes; Ventilating sky-lights provided with ventilating means
-
- 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
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D13/143—Junctions of roof sheathings to chimneys or other parts extending above the roof with ventilating means in junctions of roof sheathings to parts extending above the roof
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
A combined roof vent and attic access hatch has a base unit with a curb surrounding the hatch access opening and a flashing surrounding the curb for incorporation into the roof. Ventilation openings are formed in the curb, near the top. A cap unit extends over the curb and has a peripheral flange spaced outwardly from the curb. A centering flange extends inwardly from the peripheral cap flange and is also equipped with ventilation openings, screened to prevent animal access to the attic.
Description
214480fi ROOF HATCH FOR ATTIC ACCESS
FIELD OF THE INVENTION
The present invention relates to a roof hatch for pitched roofs and more particularly to a roof hatch for providing access to attics.
BACKGROUND
In houses and other buildings with low height attics under pitched roofs, it is often difficult to gain access to the attic for construction or repair. In many cases, attic access is through a small hatchway in a relatively inaccessible site, for example a closet ceiling. Use of these internal hatchways is difficult and can be quite disruptive. In other cases, access must be through a gable end. Again this may be difficult and may provide only limited access to the complete attic space.
The present invention is concerned with an alternative arrangement for providing convenient, easy access to confined attics.
SUMMARY
According to the present invention there is provided a roof hatch comprising:
a base unit including a peripheral, upright curb surrounding a hatch opening and flashing surrounding the curb;
a cap unit including a cover panel larger than the hatch opening and extending across the hatch opening in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in the closed condition of the hatch, a centering flange within the peripheral flange for centering the cap unit on the curb; and means for detachably connecting the cap unit on the base unit a~gO(P
FIELD OF THE INVENTION
The present invention relates to a roof hatch for pitched roofs and more particularly to a roof hatch for providing access to attics.
BACKGROUND
In houses and other buildings with low height attics under pitched roofs, it is often difficult to gain access to the attic for construction or repair. In many cases, attic access is through a small hatchway in a relatively inaccessible site, for example a closet ceiling. Use of these internal hatchways is difficult and can be quite disruptive. In other cases, access must be through a gable end. Again this may be difficult and may provide only limited access to the complete attic space.
The present invention is concerned with an alternative arrangement for providing convenient, easy access to confined attics.
SUMMARY
According to the present invention there is provided a roof hatch comprising:
a base unit including a peripheral, upright curb surrounding a hatch opening and flashing surrounding the curb;
a cap unit including a cover panel larger than the hatch opening and extending across the hatch opening in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in the closed condition of the hatch, a centering flange within the peripheral flange for centering the cap unit on the curb; and means for detachably connecting the cap unit on the base unit a~gO(P
in the closed condition of the hatch; and ventilation openings in at lest one of the cap unit and the base unit for allowing free movement of air through the hatch opening.
The hatch provides both hatch access to the attic and the 5 ventilation required to prevent moisture buildup in the attic. The use of a ventilating hatch eliminates some or all of the other required roof vents, offsetting any additional cost for the hatch unit.
The preferred embodiment of the hatch has a convex upper end to minimize water collection on the upper side of the unit.
Additional vent openings may be included in the base unit curb, along the sides and the bottom end. The centering flange preferably projects inwardly from the bottom edge of the peripheral flange on the cap to close the space between the cap periphery and the curb.
The cap is preferably a snap fit on the base unit. The upper end of the centering flange may engage under a step in the upper end of the curb and two tabs on the back end of the centering flange may engage under a similar step in the lower end of the curb.
The entire unit is preferably made of plastic material.
BRIEF DESCRIPTION OF THE DRAWINGS
In the accompanying drawings, which illustrate an exemplary embodiment of the present invention:
Figure 1 is an isometric view of the hatch as applied to a roof;
Figure 2 is an isometric view of the hatch with the cap removed;
Figure 3 is a bottom view of the cap;
Figure 4 is a plan view of the base; and Figure 5 is a side view with the cap shown partially broken away.
The hatch provides both hatch access to the attic and the 5 ventilation required to prevent moisture buildup in the attic. The use of a ventilating hatch eliminates some or all of the other required roof vents, offsetting any additional cost for the hatch unit.
The preferred embodiment of the hatch has a convex upper end to minimize water collection on the upper side of the unit.
Additional vent openings may be included in the base unit curb, along the sides and the bottom end. The centering flange preferably projects inwardly from the bottom edge of the peripheral flange on the cap to close the space between the cap periphery and the curb.
The cap is preferably a snap fit on the base unit. The upper end of the centering flange may engage under a step in the upper end of the curb and two tabs on the back end of the centering flange may engage under a similar step in the lower end of the curb.
The entire unit is preferably made of plastic material.
BRIEF DESCRIPTION OF THE DRAWINGS
In the accompanying drawings, which illustrate an exemplary embodiment of the present invention:
Figure 1 is an isometric view of the hatch as applied to a roof;
Figure 2 is an isometric view of the hatch with the cap removed;
Figure 3 is a bottom view of the cap;
Figure 4 is a plan view of the base; and Figure 5 is a side view with the cap shown partially broken away.
DETAILED DESCRIPTION
Referring to the accompanying drawings, Figure 1 illustrates a roof hatch 10 mounted on a pitched roof 12. The roof has a conventional covering of shingles 14.
5With particular reference to Figures 2, 4 and 5, the hatch 10 includes a base unit 16 including an upstanding curb 18 that extends around the periphery of a hatch opening 19. The hatch opening is of sufficient size to allow an adult to pass through the opening. The curb has an upper end 20 that is located highest on the pitched roof. It has a convex configuration 10in the shape of a shallow V with its apex 22 at the center. This allows water running down the roof to run off to either side of the base unit rather than accumulating on a flat upper end. The curb also has a bottom end 24 and two spaced apart sides 26 joining the upper end and the bottom end.
Circular vent openings 28 are spaced along the sides 26 and the bottom end 1524, near the top edge.
The upper end 20 and bottom end 24 of the curb have steps 30 and 32 respectively facing towards the roof, between the vent openings 28 and the roof. At the base of the curb 18 is a peripheral flashing 34 that, in the installed state, is overlapped on the upper end and the sides by the 20shingles 14, while on the bottom end, the flashing overlaps the shingles. A
slight ridge 36 extends along each side of the flashing.
The other component of the roof hatch is a cap unit 38. This includes a slightly domed cover panel 40 connected at its periphery to a peripheral flange 42. The flange projects from the convex side of the cover 25panel and carries a centering flange 44 that projects toward the centre of the cap. The cover panel 40 and the peripheral flange 42 conform in shape to the curb 18 but are somewhat larger so that the cover panel will extend 214~80~
over and beyond the hatch opening. The centering flange closes the space between the peripheral flange 42 and the curb. A series of vent openings 46 are spaced along a lower end 48 and two sides 50 of the centering flange. The upper end 52 of the centering flange is unperforated. The vent 5 openings 46 are covered with screens 56 to keep small animals from entering the attic through the hatch.
Projecting centrally from the lower end 48 of the centering flange are two tabs 58. When the cap unit is installed on the base unit, the centering flange surrounds the curb 18. The upper end 52 of the centering 10 flange engages under the step 30 in the upper end of the curb, while the tabs 58 snap into place under the lower step 32. The cap is preferably made of a plastic material of sufficient resiliency that pulling up on the lowerend of the cap will release the tabs from the step 32 so that the cap can be removed .
As can be observed most particularly from Figure 5, the roof hatch provides good ventilation through the ventilation openings in the curb and those in the centering flange of the cap. The screening on the cap prevents entry by small animals.
When access to an attic is required, it is a simple matter to 20 remove the cap unit from the base unit and to enter the attic through the hatch opening. This is especially useful during construction of a building with a limited attic or for maintaining a service or insulation found in the attic. While one embodiment of the present invention has been described in the foregoing, it is to be understood that other embodiments 25 are possible within the scope of the invention. It is, for example, possible to mount the cover unit on the base unit using hinges. Other arrangements of vent openings may also be employed, using alternative positionings of the 214~806 -centering flange and using a gap between the curb and the cap instead of vent openings in the curb itself. Thus, the invention is to be considered limited solely by the scope of the appended claims.
Referring to the accompanying drawings, Figure 1 illustrates a roof hatch 10 mounted on a pitched roof 12. The roof has a conventional covering of shingles 14.
5With particular reference to Figures 2, 4 and 5, the hatch 10 includes a base unit 16 including an upstanding curb 18 that extends around the periphery of a hatch opening 19. The hatch opening is of sufficient size to allow an adult to pass through the opening. The curb has an upper end 20 that is located highest on the pitched roof. It has a convex configuration 10in the shape of a shallow V with its apex 22 at the center. This allows water running down the roof to run off to either side of the base unit rather than accumulating on a flat upper end. The curb also has a bottom end 24 and two spaced apart sides 26 joining the upper end and the bottom end.
Circular vent openings 28 are spaced along the sides 26 and the bottom end 1524, near the top edge.
The upper end 20 and bottom end 24 of the curb have steps 30 and 32 respectively facing towards the roof, between the vent openings 28 and the roof. At the base of the curb 18 is a peripheral flashing 34 that, in the installed state, is overlapped on the upper end and the sides by the 20shingles 14, while on the bottom end, the flashing overlaps the shingles. A
slight ridge 36 extends along each side of the flashing.
The other component of the roof hatch is a cap unit 38. This includes a slightly domed cover panel 40 connected at its periphery to a peripheral flange 42. The flange projects from the convex side of the cover 25panel and carries a centering flange 44 that projects toward the centre of the cap. The cover panel 40 and the peripheral flange 42 conform in shape to the curb 18 but are somewhat larger so that the cover panel will extend 214~80~
over and beyond the hatch opening. The centering flange closes the space between the peripheral flange 42 and the curb. A series of vent openings 46 are spaced along a lower end 48 and two sides 50 of the centering flange. The upper end 52 of the centering flange is unperforated. The vent 5 openings 46 are covered with screens 56 to keep small animals from entering the attic through the hatch.
Projecting centrally from the lower end 48 of the centering flange are two tabs 58. When the cap unit is installed on the base unit, the centering flange surrounds the curb 18. The upper end 52 of the centering 10 flange engages under the step 30 in the upper end of the curb, while the tabs 58 snap into place under the lower step 32. The cap is preferably made of a plastic material of sufficient resiliency that pulling up on the lowerend of the cap will release the tabs from the step 32 so that the cap can be removed .
As can be observed most particularly from Figure 5, the roof hatch provides good ventilation through the ventilation openings in the curb and those in the centering flange of the cap. The screening on the cap prevents entry by small animals.
When access to an attic is required, it is a simple matter to 20 remove the cap unit from the base unit and to enter the attic through the hatch opening. This is especially useful during construction of a building with a limited attic or for maintaining a service or insulation found in the attic. While one embodiment of the present invention has been described in the foregoing, it is to be understood that other embodiments 25 are possible within the scope of the invention. It is, for example, possible to mount the cover unit on the base unit using hinges. Other arrangements of vent openings may also be employed, using alternative positionings of the 214~806 -centering flange and using a gap between the curb and the cap instead of vent openings in the curb itself. Thus, the invention is to be considered limited solely by the scope of the appended claims.
Claims (17)
1. A roof hatch comprising:
a base unit including a peripheral, upright curb surrounding a hatch opening and flashing surrounding the curb;
a cap unit including a cover panel larger than the hatch opening and extending across the hatch opening in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in the closed condition of the hatch, a centering flange within the peripheral flange for centering the cap unit on the curb; and means for detachably connecting the cap unit on the base unit in the closed condition of the hatch; and ventilation openings in at lest one of the cap unit and the base unit for allowing free movement of air through the hatch opening.
a base unit including a peripheral, upright curb surrounding a hatch opening and flashing surrounding the curb;
a cap unit including a cover panel larger than the hatch opening and extending across the hatch opening in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in the closed condition of the hatch, a centering flange within the peripheral flange for centering the cap unit on the curb; and means for detachably connecting the cap unit on the base unit in the closed condition of the hatch; and ventilation openings in at lest one of the cap unit and the base unit for allowing free movement of air through the hatch opening.
2. A hatch according to Claim 1 including ventilation openings in the centering flange.
3. A roof hatch according to Claim 2 including vent openings in the curb.
4. A roof hatch according to Claim 3 wherein the curb has an upper end, a lower end and two sides adjoining the ends, the vent openings in the curb being located along the sides and the lower end.
5. A hatch according to Claim 4 wherein the upper end of the curb is convex.
6. A hatch according to any one of Claims 1 to 5 wherein the cover panel is convex.
7. A hatch according to Claim 2 wherein the centering flange projects inwardly from the peripheral flange of the cap.
8. A hatch according to Claim 5 wherein the cap has a convex upper end.
9. A hatch according to Claim 6, 7 or 8 wherein the vent openings in the centering flange are spaced along a lower end and opposite sides of the cap.
10. A hatch according to Claim 9 wherein the vent openings in the centering flange are screened.
11. A hatch according to any one of Claims 1 to 5, 7, 8 and 10 wherein the means for connecting the cap to the base unit include a step in the upper end of the curb for engagement by the centering flange of the cap.
12. A hatch according to Claim 11 wherein the means for connecting the cap to the base include a step in a lower end of the curb and tabs projecting from the centering flange of the cap, along a lower end of the cap, for engagement under the lower end step.
13. In combination with a pitched roof, a ventilating roof hatch for ventilation of and access to a space below the roof, said roof hatch comprising:
a base unit with an upright curb surrounding a hatch opening and flashing surrounding the curb, the flashing being secured to the roof;
a cap unit including a cover panel larger than the hatch opening and extending across the hatch opening in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in the closed condition of the hatch, a centering flange within the peripheral flange for centering the cap unit on the curb;
connecting means for connecting the cap to the base unit; and ventilation openings in at least one of the cap unit and the base unit for allowing a free movement of air through the hatch opening.
a base unit with an upright curb surrounding a hatch opening and flashing surrounding the curb, the flashing being secured to the roof;
a cap unit including a cover panel larger than the hatch opening and extending across the hatch opening in a closed condition of the hatch, a peripheral flange projecting from the cover panel and surrounding the curb in the closed condition of the hatch, a centering flange within the peripheral flange for centering the cap unit on the curb;
connecting means for connecting the cap to the base unit; and ventilation openings in at least one of the cap unit and the base unit for allowing a free movement of air through the hatch opening.
14. A combination according to Claim 13 including ventilation openings in the centering flange and the curb.
15. A combination according to Claim 14 wherein an upper end of the curb is convex.
16. A combination according to Claim 14 wherein the centering flange projects inwardly from the peripheral flange of the cap.
17. A combination according to Claim 16 wherein the vent openings in the centering flange are screened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2144806 CA2144806A1 (en) | 1995-03-16 | 1995-03-16 | Roof hatch for attic access |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2144806 CA2144806A1 (en) | 1995-03-16 | 1995-03-16 | Roof hatch for attic access |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2144806A1 true CA2144806A1 (en) | 1996-09-17 |
Family
ID=4155441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2144806 Abandoned CA2144806A1 (en) | 1995-03-16 | 1995-03-16 | Roof hatch for attic access |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2144806A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2698485A1 (en) * | 2012-08-16 | 2014-02-19 | Roto Frank Ag | Skylight assembly |
-
1995
- 1995-03-16 CA CA 2144806 patent/CA2144806A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2698485A1 (en) * | 2012-08-16 | 2014-02-19 | Roto Frank Ag | Skylight assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |