US3079853A

US3079853A - Roof ridge ventilator

Info

Publication number: US3079853A
Application number: US46968A
Authority: US
Inventors: Lester L Smith
Original assignee: Individual
Current assignee: Individual
Priority date: 1960-08-02
Filing date: 1960-08-02
Publication date: 1963-03-05
Anticipated expiration: 1980-03-05

Description

March 5, 1963 L. L. SMITH ROOF RIDGE VENTILATOR 2 Sheets-Sheet 1 Filed Aug. 2, 1960 INVEN7 0R. Zeszer Z. 677 11 2 m flzior'na 5 March 5, 1963 L. L. SMITH 3,079,853

ROOF RIDGE VENTILATOR Filed Aug. 2, 1960 2 Sheets-Sheet 2 IN V EN TOR.

Jester L 'miiiz BY M Y52a7/w14 w dz'iameys 3,i79,53 RGQF REESE VEN'H'LATQR Lester L. S. ith, Eeoria, ill. {P.fi. Box 68, Princeville, all.) Filed Aug. 2, 196%, Ser. No. 6 Claims. (Cl. 93-42) This invention relates to roof ridge ventilators, and more particularly to ventilators which extend along the ridge of a roof and provide for movements of air to and from the space below the roof, while afioiding good protection from weather, including driven rain, snow and the like.

The ventilator structures disclosed herein embody improvements over those shown in my copending application, Serial No. 715,863, filed February 26, 1959, for Roof Ventilators, in which application, Frank E. Randall is a co-inventor.

It has been found that in some buildings, such as smaller one story dwellings built on concrete slabs without basements and having the heating plants located in the living quarters, usually at a generally central position, the amount of air required to burn the fuel for heating in very cold weather is sometimes sutlicient to effect a tendency toward reduced atmospheric pressure in the space between the room ceilings and the roof. The resultant inward movement of air through a ventilator, when accompanied by wind driven snow, brings about the desirability for the additional weather protection aiforded by means, such as a bafile, for efiecting deflection and change of direction of the flow of air to the lowered openings external to the ventilator.

One of the objects of my invention is to provide a root" ridge ventilator made of formed sheet metal and adapted to extend longitudinally of the roof ridge with integral flashing for overlapping the roof shingles and having marginal portions thereof formed to provide improved rigidity and edge sealing properties.

As another object, this invention has within its purview the provision of a roof ridge ventilator including louvered openings at a sheltered position in the ventilator for the flow of air therethrough and having bafile means spaced from the louvered openings for deflecting driven snow and rain in a manner to improve the weather protective qualities of the ventilator.

Other objects and advantages of the invention will be apparent from the following description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a fragmentary perspective view of a roof ridge ventilator embodying a preferred form of this invention and shown in an adaptation to the roof of a building;

FIG. 2 is an end elevational view of the roof ridge ventilator depicted in FIG. 1;

H6. 3 is a fragmentary end elevational view of the roof ridge ventilator of FIG. 1 shown in an application to the roof of a building and including bafi'le means of a type adapted to afford added weather protection in some installations;

FIG. 4 is a fragmentary perspective view of a preferred form of baffled structure adapted to use as illustrated in FIG. 3; and

FIG. 5 is a fragmentary end sectional view of a modified form of my roof ridge ventilator wherein the baffle means for affording added weather protection is made as an integral part of the ventilator.

In the exemplary embodiments of my invention which are shown herein for illustrative purposes, a roof ridge ventilator it? has a sectional shape which is symmetrical with respect to a longitudinal central plane and is adapted to mounting on the ridge of a building roof 12, as shown in FIGS. 1 and 3 with the ventilator extending longitudinally of the roof ridge. In the illustrated building strucnited rates ture, rafters 13 support roof sheathing 14 which is secured thereto. At the ridge of the roof, a space 15 is left between the sheathing on the two sides of the roof ridge to provide for the flow of air through the ventilator 10 and the roof. As ma be observed in FIGS. 1 and 3, the illustrated ridge ventilator it replaces the usual ridge row of shingles, and roofing materials, such as shingles 16 on the two sides of the roof, extend to positions overlying the roof ventilator and approaching the space 15 between the sheathing on the two sides.

The disclosed ridge ventilators 10 have top or

cover portions

17 and 18 which extend outwardly in symmetrical and obtuse angular relationship to one another on opposite sides of a ridge bend 19 on opposite sides of the ventilator. Outer side walls 2d and 22 extend downwardly from the top or

cover portions

17 and 18 respectively.

Panels

23 and 24 extend inwardly from the bottoms of the

outer side walls

29 and 22. respectively in spaced and opposed relationship to the top or cover portions 17 and 1% of the ventilator. Inner side walls 2 5 and 2d extend downwardly in spaced and substantially parallel and opposed relationship to one another from the inner edges of the

panels

23 and 24 respectively to define a throat 27 for the passage of air therebetween. From the bottom edges of the inner side walls and 26, flashing

portions

23 and 29 of the ventilator extend outwardly in angular relationship to one another and in spaced and opposed relationship to the

panels

23 and 24 respectively. In the disclosed structure, the

flashing portions

28 and 29 extend laterally of the ventilator structure to positions beyond and outward from the

outer side walls

29 and 22 and the

panels

23 and 24 of the ventilator.

Rows of

louvered vent openings

30 and 32 are provided in the

panels

23 and 24 respectively, which louvered vent openings are relatively small in both length and width and are repeated in spaced relationship to one another longitudinally of the panels of the ventilator. in order to provide optimum weather protection, louvers 33 are integrally formed in the respective panels to extend upwardly from the panels and into the ventilator over their respective openings 3-i with the slopes of the louvers on each side of the ventilator structure being outward toward the outer side walls 2 and 22 of the ventilator. Being thus disposed, air moving into the ventilator is required to change its direction both externally and internally of the ventilator, whereupon moisture is removed from the air in each change of the direction of air movement. Also, with this arrangement of louvered vents, moisture removed from the air internally of the ventilator at the

panels

23 and 24 is drained from the interior of the ventilator through the openings 34. This structure airords good weather protection in most instances, and provides for the movement of relatively dry air through the throat 27 between the inner side walls 2 5 and 26 or the ventilator.

In order to provide a defined nailing strip at the outer margins of the dashing portions of the ventilator, to insure a tight seal between the ventilator flashing portions and the shingles or roofing which underlie the flashing portions as well as to rigidify the margins of the flashing portions and provide an accommodation for a sealing flange on a plastic plug used to close the ends of the ventilator, as well as to join adjacent sections of a long ventilator, the flashing portions 2E and 29 include outer

marginal portions

35 and 36 respectively which are offset from

inner portions

37 and 38 of the flashing portions by integral angularly disposed intervening portions 3? and respectively. integrally formed stifiening beads 42 and 4-3 of generally semi-circular shape ex tend along the outer

marginal portions

35 and 36 between the intervening portions 3-9 and 4-6 and the outer edges of the outer marginal portions. Also to rigidify the edges of the outer marginal portions of the flashing portions, narrow

marginal flanges

44 and 45 are provided which extend downwardly in angular relationship to the outer

marginal portions

35 and 36 for engagement with overlapped roofing material, as depicted in FIGS. 1 and .3. For fastening the ventilator in place on a roof, as shown in FIGS. 1 and 3, fastening means such as nails 46 are utilized, which nails extend through

outer marginalportions

35 and 36 adjacent and inside of the stiff- .

eningvbeads

42 and 43. v

7 As shown in FiG S. l and 3, thespace 15 between the sheathing 14 on the two sides of the roof is at least .as wide as throat 27 between the

inner side walls

25 and 26 of the ventilator, so that the sheathing does not restrict the flow of air through the throat. Also, ,the combined area of the vent openings 34 and the spaces .between the parts of the ventilatorstructure, such as the

panels

23 and 24 and thecover or top portions 17 and 1-8 are calculated to aford mr flow commensurate with that afforded by the throat.

In order to provide weather protection suited to extremely severe conditions, as where hi hwinds are prevalant todrive rain .or snow, as well as to counteract the effect of reduced pressure within a building resulting from the demands for air for the combustion of fuel in aheating system within the building, it is sometimes desirable to utilize additional means for controlling and directing the flow of air to the louvered vent openings on the outside of the ventilator. For this purpose, as shown in FIGS. 3 and 5, I have provided

baffles

47 and 48 of one type in the structure of FIG. 3 and bafiies such as 49 of another type, as shown in the modified structure of FIG. 4, which extend upwardly from the outer edges of the flashing

portions

28 and 29 of the ventilator. Since the flashing

portions

28 and 29 of the disclosed ventilator are wider than the top or cover

portions

17 and 18, bafies 47, 48 and 4% extend upwardly to heights below, butnear the level of the

panels

23 ,and 24, so that they do not unduly restrict the flow of .air to the louvered openings, but so that they insure that air flowing to the louvered openings must change direction after passing the baflles in order to pass through the louvered openings.

In the structure illustrated in FIGS. 3 and 4, the baffles 47 and 4-3 are made as separate pieces from a ma- .terial, such as an extruded plastic section with

side flange portions

50 and 52 in angular relationship to one another. In the form disclosed, the flange portion 52 is tapered to a thinner section toward its free edge 53 and serves as a base for supporting the flange portion 50 in an upright position when the flange portion 52 is overlapped by the outer marginal portion of one of the flashing portions. For affording added rigidity and providing desired air deflecting characteristics, a lower portion 54- of the, side flange portion St) is disposed in acute angular relationship to the flange portion 52, while an upper marginal portion 55 of the side flange portion t} extends outwardly in obtuse angular relationship to the lower portion 54. When mounted with the side flange portion 52 overlapped by the outer marginal portions of the flashing portions of the ventilator, the baflles are secured in position by the nails 46 which extend through the side portions 52 and are engaged at the apex of the angularly disposed side portions by the edges of the narrow

marginal flanges

44 and 45 on the flashing portions. Being in lengths commensurate with the lengths of the ventilator structure, the baffles extend therealong, except that at the ends of the ventilator and at positions in which sections of the ventilator are put together, and where there are no louvered vent openings, small gaps may be provided in the side flange portions 50 to permit the drainage of any water which may collect on the inside of the baffles.

In the modified structure illustrated in FIG. 5, the narrow flange at the outer edge of the flashing portion 28'is extended into a head 56 of generally semi-circular section with the curvature reversed with respect to that of the head 42, and the baifle 49 extends upwardly as an integral continuation of the outer edge of the head 56. Except for being integrally formed and made of metal, the general purposes and characteristics of the bafiie 49 are similar to those described with respect to the

baffles

47 and 48.

From the foregoing description and by reference to the accompanying drawings it may be understood that I have provided a'roof ridge ventilator structure having improved means for rigidifying and effecting good sealing for the outer marginal portions ofthe flashing portions of the ventilator, and have also provided improvedweather protection in the form of bafies which suits the ventilator to extreme weather and service conditions by necessitating the change of direction of the flow of air to the louvered vent openings at the exterior of the ventilator structure. 7 Having thus described my invention, what is claimed is:

l. A roof ridge ventilator comprising in combination, a top cover part having side portionsextending laterally from 'a longitudinal ridge in angular relationship to one another, outer side walls extending downwardly from the top portions, panels narrowerthan theside portions of the top cover part extending inwardly from-said outer side walls in spaced relationship to the-side portions ur ne top part and facing downwardly,winnerside walls extend- 'ing downwardly from the panels in space d and opposed relationship to one another and defining-acentral open throat therebetween which'serve s as an air flow passage, side flashing portions extending laterally in opposed relationship to one another from the bottoms of the inner side walls, said panels having openings therein and louvers thereon which extend upwardly and outwardly of the panels over each of said openings, said side flashing portions extending laterally beyond the panels and outer side walls and having outer marginal nailing portionsextending longitudinally thereof and offset from the general planes of the flashing portions, said marginal nailing por tions of the flashing portions having 'stiifening' beads formed therein and extending longitudinally thereofnear the outer edges ,of the flashing portions, narrow outer marginal portions of said flashing portions outwardly of the stiflening beads bent'to extend downwardly in obtuse angular relationship to the flashing portions to provide relatively stiff and thin roof engaging edges, and means providing baflles extending upwardly from outer edge regions of said flashing portions spaced outwardly from said outer side walls and terminating below the level of said ridge of the ventilator to deflect wind driven rain and snow from being driven directly across the flashing portions toward said inner side walls and the louvered openings'in said panels. Y

2. A roof ridge ventilator as defined in claim ljand wherein said baflles comprise flanges integral with said flashing portions.

3. A roof ridge ventilator 'as defined in claim 1, a

and wherein said means each comprise angle strips having flange portions in angular relationship to one another, one of said flange portions of each angle strip underlying said marginal nailing portion of each flashing portion, and'the other side portion of each angle strip extending upwardly in angular relationship to the outer edge of each flashing portion to provide said b'aifle'.

4. A roof ridge ventilator comprising, in combination, a top cover part having side portions extending laterally from a longitudinal ridge in angular relationship to one another, outer side walls extending downwardly from the top portions, panels narrower than the side portions of the top cover part extending inwardly from'said outer side walls in spaced relationship to the side portions of the top part'and facing downwardly, inner side walls extending downwardly .from the panels in spaced and opposed relationship to one another and defining a central open throat therebetween which serves as an air flowpassage, side flashing portions extending laterally in opposed relationship to one another from the bottoms of the inner side Walls, said panels having louvered openings therein, said side flashing portions extending laterally beyond the panels and outer side walls, and means providing bafiles extending upwardly from said flashing portions at positions spaced outwardly of the ventilator from said outer side walls thereof to deflect wind driven rain and snow from movement directly across the flashing portions toward said inner side walls and the louvered openings in the panels.

5. A roof ridge ventilator as defined in claim 4, and wherein said battles comprise flanges which are integral with said flashing portions.

References Cited in the file of this patent UNITED STATES PATENTS 2,157,609 Hopkins May 9, 1939 2,365,328 Bell Dec. 19, 1944 2,704,500 Bonforte Mar. 22, 1955 2,868,104 Honholt Jan. 13, 1959 2,895,399 OHea July 21, 1959

Claims

1. A ROOF RIDGE VENTILATOR COMPRISING, IN COMBINATION, A TOP COVER PART HAVING SIDE PORTIONS EXTENDING LATERALLY FROM A LONGITUDINAL RIDGE IN ANGULAR RELATIONSHIP TO ONE ANOTHER, OUTER SIDE WALLS EXTENDING DOWNWARDLY FROM THE TOP PORTIONS, PANELS NARROWER THAN THE SIDE PORTIONS OF THE TOP COVER PART EXTENDING INWARDLY FROM SAID OUTER SIDE WALLS IN SPACED RELATIONSHIP TO THE SIDE PORTIONS OF THE TOP PART AND FACING DOWNWARDLY, INNER SIDE WALLS EXTENDING DOWNWARDLY FROM THE PANELS IN SPACED AND OPPOSED RELATIONSHIP TO ONE ANOTHER AND DEFINING A CENTRAL OPEN THROAT THEREBETWEEN WHICH SERVES AS AN AIR FLOW PASSAGE, SIDE FLASHING PORTIONS EXTENDING LATERALLY IN OPPOSED RELATIONSHIP TO ONE ANOTHER FROM THE BOTTOMS OF THE INNER SIDE WALLS, SAID PANELS HAVING OPENINGS THEREIN AND LOUVERS THEREON WHICH EXTEND UPWARDLY AND OUTWARDLY OF THE PANELS OVER EACH OF SAID OPENINGS, SAID SIDE FLASHING PORTIONS EXTENDING LATERALLY BEYOND THE PANELS AND OUTER SIDE WALLS AND HAVING OUTER MARGINAL NAILING PORTIONS EXTENDING LONGITUDINALLY THEREOF AND OFFSET FROM THE GENERAL PLANES OF THE FLASHING PORTIONS, SAID MARGINAL NAILING PORTIONS OF THE FLASHING PORTIONS HAVING STIFFENING BEADS FORMED THEREIN AND EXTENDING LONGITUDINALLY THEREOF NEAR THE OUTER EDGES OF THE FLASHING PORTIONS, NARROW OUTER MARGINAL PORTIONS OF SAID FLASHING PORTIONS OUTWARDLY OF THE STIFFENING BEADS BENT TO EXTEND DOWNWARDLY IN OBTUSE ANGULAR RELATIONSHIP TO THE FLASHING PORTIONS TO PROVIDE RELATIVELY STIFF AND THIN ROOF ENGAGING EDGES, AND MEANS PROVIDING BAFFLES EXTENDING UPWARDLY FROM OUTER EDGE REGIONS OF SAID FLASHING PORTIONS SPACED OUTWARDLY FROM SAID OUTER SIDE WALLS AND TERMINATING BELOW THE LEVEL OF SAID RIDGE OF THE VENTILATOR TO DEFLECT WIND DRIVEN RAIN AND SNOW FROM BEING DRIVEN DIRECTLY ACROSS THE FLASHING PORTIONS TOWARD SAID INNER SIDE WALLS AND THE LOUVERED OPENINGS IN SAID PANELS.