Search Images Maps Play YouTube News Gmail Drive More »
Advanced Patent Search | Page images | Web History | Sign in

Patents

  
[graphic]
[graphic]
[graphic]

1 2

VENTILATED ROOF SYSTEM WITH RIDGE It is to overcome the shortcomings in prior art systems and

VENT to provide a new and improved system for sealing a ridge roof

vent that the present invention has been developed.

BACKGROUND OF THE INVENTION

SUMMARY OF THE INVENTION

1. Field of the Invention Xhe present invention concerns an improved air permeable The present invention relates generally to ventilated roof sealant system for a ridge vent found in building structures

systems for building structures, and more particularly to a wherein the sealant strip can be positively and hermetically

roof system having a ridge vent and an air permeable sealant "> sealed to the underlying roof. This is accomplished while

system permitting the egress of air from the underlying building

structure and inhibiting the ingress of insects, rain and other

2. Description of the Relevant Art undesirable elements.

It is common to ventilate roofs of building structures to Typical ridge roof vents are provided on roof structures

remove stagnant or hot air, with such ventilating systems 15 wherein a pair of roof sections are angled relative to each

sometimes including vents in the gables of the building struc- other so as to define a roof of generally inverted v-shaped

tare, along the soffits or along the ridge or apex of the roof. transverse cross-section. At the apex of the roof a slot is

The vents, of course, are provided to permit the ingress and Voided or formed that defines a gap between the roof sec

„ . i i j ^ • 1 ^ • 1 ^ tions and through which air can be vented from beneath the

egress oi air and when the vent is along the ridge, the air „ ... , ^ . „. ^ , , ,

f , 20 rooi system. A ndge cap, also typically oi inverted v-shaped

naturally egresses through the vent from beneath the roof by croSS-Section, overlies the slot to prevent rain or other unde.

convection. Ridge vents are typically combined with gable or sirable elements from passing downwardly through the slot

soffit vents through which air can flow into the space below with the ridge cap being spaced from the underlying roof

the roof to encourage a continuous flow of air from the ambi- sections to permit the egress of air from the underlying build

ent environment, through the space beneath the roof and back 25 ing structure. The strip of the present invention is provided for

to the ambient environment through the ridge vent. placement between the ridge cap and the underlying roof

One problem with vents which simply consist of openings sections in/ mann6;r to be sea}ed the, TMdertying roof

, .,,. ^ ..... ... . sections and permit the egress oi air from the building struc

in a building structure through which air can readily pass, is ^ , ^. , .5V ^ . „ . ^ . ^ ^ ,.,

. . . , ture, but inhibit the ingress oi moisture, insects, or the like.

that insects, rain or other undesirable elements can also pass 3Q The ^ ... twQ integrated or composite parts, with

through the openings. one part being 0f denser construction than the other. The one

Accordingly, it has been discovered with ridge vents that more dense part has a relatively flat smooth surface which can

the use of an air permeable material such as a matting of be engaged and hermetically bonded to an associated roof

randomly oriented interconnected or reticulated synthetic section adjacent to the slot in the roof structure to establish a

fibers inhibits the passage of insects or rain while permitting 35 water and bug-proof barrier between the strip and the under

the flow of air. Accordingly, such material provides a desk- l7mf ro°f sectlon- The opposite or upper surface of the strip

... , , , ^ ^ . , „ • 1 ^ is adapted to receive the second, less-dense material which is

able air permeable sealant material for use with ridge vents, ^iw^^^ ^ • i -n 11 1 ^ • 1

. . , . . attached to the first material, the second less-dense material

An example of such a reticulated material in ndge vents is has an upper surface in engagement with the undersurface of

found in U.S. Pat. No. 5,561,953, and an example of the 4Q the ridge cap. In a preferred embodiment, the first material has

reticulated material for use in a ridge vent is disclosed in U.S. recesses in its upper surface in which the second material is

Pat. No. 5,167,579. Still another venting system for ridge positioned and bridge sections between the recesses estab

vents is disclosed in U.S. Pat. No. 5,353,154, but the system lishing locations where the ridge cap can be connected to the

disclosed therein is useful only on relatively flat roofing. The underlying roof section by passing fasteners through the ridge

invention disclosed in U.S. Pat. No. 5,561,953 was developed 45 cap, the bridge section, and into the underlying roof section,

to overcome the shortcomings of the flat roof system and The striP is useful on substantially flat roofs such as might

provides a system wherein the reticulated material is grooved have, shmgle^ °r the like or can be slotted or

, „ j. . j. J ^ j- notched in its bottom surface to accommodate ridges or other

on a bottom surface to conform with the transverse contour oi . ^. ^ ^ . , ^ , „ , ^ , „° ., „

. projections that might be found on metal roois, tile roois,

an underlying rooi such as might be found on tile roois, . , f r,

J 6 ^ '50 corrugated roois, or the like.

corrugated aluminum roofs, metal roofs having upstanding 0ther ... features and detaiis of the present invention

projections and the like. can be more completely understood by reference to the fol

A problem with a sealant ridge vent system of the type lowing detailed description of a preferred embodiment, taken

disclosed in U.S. Pat. No. 5,561,953 or 5,352,154 resides in in conjunction with the drawings and the appended claims.

the fact that the reticulated material rests directly on the 55 „ „ „ „ „

... , , , . . t. w , '. , . BRIEF DESCRIPTION OF THE DRAWINGS underlying rooi surface and since the reticulated material is a

very open material that does not present a continuous flat, TM„ ^ . . . . . ^ i -u- ^ ^ 1

, r , , , . n . , ., FIG. 1 is an isometric view oi a building structure having a

smooth surface to the underlying rooi, it does not provide a r .,, , , , P.,

, ro°i with a ndge vent and the sealant system oi the present

desirable sealable surface between the ndge vent system and ^ invention

the underlying roof. FIG 2 Jg ^ enlarged fragmentary section taken along line

Accordingly, it would be desirable that a ridge vent system 2-2 of FIG. 1.

include a sealant strip that was not only air permeable so that FIG. 3 is a fragmentary isometric showing the ridge of the

the building structure was adequately ventilated, but also a building structure of FIG. 1 with the sealant system of the

system whereby the sealant strip could be positively sealed to 65 present invention incorporated therein,

the underlying roof to prevent the ingress of rain, insects or FIG. 4 is a fragmentary isometric similar to FIG. 3 with the

the like between the sealant strip and the roof. ridge cap exploded.

3

FIG. 5 is an enlarged fragmentary section taken along line 5-5 of FIG. 3.

FIG. 6 is a further enlarged fragmentary section similar to FIG. 5.

FIG. 7 is a still further enlarged fragmentary section similar 5 to FIGS. 5 and 6.

FIG. 8 is an isometric of the sealant strip used in the roof system of the present invention looking downwardly on the top of the strip.

FIG. 9 is an isometric similar to FIG. 7 looking at the 10 bottom of the strip and the removal of a tear-away paper strip overlying adhesive on the bottom surface.

DESCRIPTION OF THE PREFERRED

EMBODIMENT 15

A building structure 10 having a roof system incorporating the ridge vent of the present invention is shown in FIG. 1 to have sidewalls 12, gables 14 at opposite ends (only one being shown), and an inverted v-shaped roof structure 16 having a 20 pair of roof sections 18 intersecting along an apex or ridge 20 of the roof. A conventional slot or ridge opening 22, as possibly best seen in FIG. 2, is established along the ridge of the roof system with the slot being established between layers of decking material 24 associated with each roof section 18 with 25 the decking being supported on rafters 26 which are in turn interconnected with a longitudinal beam 28 as is common in the building trade. The decking 24 is overlaid with an outer covering 30 of roofing material which in the disclosed embodiment is composed of interconnected, elongated strips 30 or channels 32 of metal or the like of generally u-shaped cross-section even though the invention would be applicable to flat outer coverings or outer coverings of corrugated materials, tile, or the like.

As probably best appreciated by reference to FIG. 5, while 35 the channels 32 which extend perpendicularly to the ridge 20 of the roof system can be formed in many different ways, the channels used to facilitate a description of the present invention are elongated, having complementary opposite longitudinal edges so that the edge of one panel can overlap and be 40 releasably connected to the opposite edge of the next adjacent channel. At the interconnection 34 of adjacent channels and at one or more spaced locations 36 therebetween there are upstanding ribs or projections of generally trapezoidal transverse cross-section extending parallel to the longitudinal 45 edges of each channel 32. Such channel formed roofing materials are common in the trade and are illustrated for exemplary purposes only. It will be appreciated by reference to FIG. 5 that when adjacent channel members 32 are interconnected along adjacent edges, with one edge overlapping the opposite 50 edge of an adjacent channel member, the entire outer covering 30 for the roof decking is established with upstanding ribs 34 and 36 extending perpendicularly to the ridge 20 and the lower edge 38 of the associated roof section 18.

The upper ends of the channel members 32 forming the 55 roof covering 30 of one roof section 18 are spaced from the upper ends of the channel members on an adjacent roof section similarly to the spacing of the upper edges of the decking 24 for each roof section so that the opening or slot 22 is defined along the ridge permitting the egress of air from 60 beneath the roof structure through the opening.

Sealant strips 40 in accordance with the present invention are secured to the top surface of each roof section 18 adjacent to and along each side of the opening 22. The securement is in any suitable manner but preferably with an adhesive so as to 65 establish a fluid seal or barrier between the strip and the underlying roof section.

4

The sealant strip 40 as best appreciated by reference to FIGS. 5-9, is a composite strip of two aggregated or interconnected materials with one material 42 forming the base of the strip which is connected to the underlying roof section 18, and the other material 44 an overlying material seated on the top of the base and in a position to engage a ridge cap 46. The base material 42 could be numerous materials, but in accordance with the present invention, the base material is preferably a flexible material that is also air and liquid impermeable, with an example being a cross-link polyethylene foam of two pound density. The base material has a lower surface 48 that is adapted to engage the underlying roof section 18 with this surface being formed and contoured to mate with the crosssection of the covering 30 of the associated roof section. In the illustrated embodiment, the lower surface 48 is smooth but provided with transverse channels 50 having a trapezoidal cross-sectional configuration complementary to that of the ridges 34 and 36 in the interconnected channel members 32 which form the covering 30. In this manner, when the strip 40 is laid transversely to the length of the channel members and parallel to the slot 22 in the ridge of the roof structure, the strip is in continuous engagement with the underlying channel members of the covering 30. The base material 42 has a smooth bottom surface such that the strip can be sealed to the underlying channel members to prevent the passage of fluid, insects and the like across the interconnection of the strip with the channels.

In the preferred embodiment of the invention, the sealing is established with a pair of longitudinally extending strips 52 of adhesive, as seen in FIG. 9, which are spaced from each other and covered with a tear-away strip 54 of paper which facilitates shipping of the material and easy installation.

The upper surface 56 of the base material as best seen in FIGS. 5-7, is provided with longitudinally spaced notches or recesses 58 of rectangular transverse cross-section which are spaced from each other by bridge sections 60 of the base material. The bridge sections of the base material have flat, continuous upper surfaces 62 for engagement with the ridge cap 46. The other composite material 44 used in the sealant strip has a lower concentration of matter so as to be air permeable and is positioned in the recesses 58 in the top surface of the base material so as to permit the free flow of air therethrough, but inhibit the passage of rain, insects, or the like. The air permeable material could be any suitable material, but a reticulated material has been found desirable that may be described as a strong, durable, modified polyester, non-woven, non-wicking, fiber-based matting of the type described in the aforementioned U.S. Pat. No. 5,167,579, the disclosure of which is hereby incorporated by reference.

The air permeable material 44 is preferably, positively secured in the recesses 58 of the base material with adhesive or the like and is of a thickness such that the top surface of the air permeable material is coplanar with the top surface 62 of the bridge sections 60 in the base material. Accordingly, the cross-section of the air permeable material corresponds with the cross-section of the recesses in the base material.

The ridge cap 46 which is of inverted v-shaped crosssection corresponding to the cross-sectional configuration of the interconnected roof sections is rigid and adapted to overlie the strips 40 of material which have been placed on and secured to the underlying roof sections 18 and due to the continuous height of the strip material, the ridge cap is positioned in continuous engagement with the strip material. The ridge cap can be secured in position with fasteners 64 (FIG. 6), passed through the ridge cap, the bridge section of the base

« PreviousContinue »