ADHESIVE WATERPROOF TAPE SYSTEM FOR ROOFING AND FLASHING
20170259543 · 2017-09-14
Inventors
Cpc classification
B32B11/02
PERFORMING OPERATIONS; TRANSPORTING
B32B2262/00
PERFORMING OPERATIONS; TRANSPORTING
B32B27/12
PERFORMING OPERATIONS; TRANSPORTING
Y10T442/2738
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B32B2260/042
PERFORMING OPERATIONS; TRANSPORTING
E06B2001/628
FIXED CONSTRUCTIONS
B32B2262/14
PERFORMING OPERATIONS; TRANSPORTING
B32B2307/718
PERFORMING OPERATIONS; TRANSPORTING
B32B2262/08
PERFORMING OPERATIONS; TRANSPORTING
E04D13/1475
FIXED CONSTRUCTIONS
Y10T428/2848
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10T442/10
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B32B17/04
PERFORMING OPERATIONS; TRANSPORTING
B32B2262/062
PERFORMING OPERATIONS; TRANSPORTING
B32B17/02
PERFORMING OPERATIONS; TRANSPORTING
B32B5/02
PERFORMING OPERATIONS; TRANSPORTING
B32B11/10
PERFORMING OPERATIONS; TRANSPORTING
B32B11/044
PERFORMING OPERATIONS; TRANSPORTING
B32B2260/021
PERFORMING OPERATIONS; TRANSPORTING
B32B2262/02
PERFORMING OPERATIONS; TRANSPORTING
International classification
B32B17/02
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A house sealing method is herein provided. The method involves using a tacky on both sides detail membrane having a reinforced inner core to seal various areas of a building envelope.
Claims
1: A method of waterproofing a building envelope and promoting the adhesion of various components thereto comprising: using a detail membrane comprising: a reinforced inner core having first and second sides; a tacky, bitumen-based adhesive bonded to each first and second side of said reinforced inner core, providing tacky upper and lower surfaces; and an upper and lower release liner removably adhered to said upper and lower surfaces, respectively, wherein said release liners are configured to prevent the tacky upper and lower surfaces from sticking to surfaces during transport and to prevent the adhesion of debris thereto prior to use; wherein rubber polymers and/or styrene-rubber block copolymers and/or other elastic materials are added to said bitumen-based adhesive; bonding an underside of an exposed cover roofing material to an underlying roofing material on a building envelope; wherein said underlying roofing material may be a substrate, underlayment, drip edge, flashing or similar.
2: The method of claim 1 wherein said reinforced core of said detail membrane comprises a non-woven mat of glass fibers interposed between and mutually bonded to each first and second side.
3: The method of claim 2 wherein bonding an underside of an exposed cover roofing material to an underlying roofing material on a building envelope comprises: removing said lower release liner just prior to installation on a building envelope; pressing the detail membrane onto a surface of a building envelope; removing said upper release liner just prior to installation thereof; and pressing a cover material into the exposed, tacky upper surface of said detail membrane.
4: The method of claim 3 wherein said detail membrane is provided in a roll form.
5: The method of claim 4 wherein said detail membrane is applied to said surface of said building envelope by unrolling of approximately 12″ thereof, removing said lower release liner just prior to installation, pressing said unrolled portion onto said surface of said building envelope, and subsequently unrolling 3′-4′ and pressing said unrolled portion onto said surface of said building envelope until the area has been covered.
6: The method of claim 1 wherein said detail membrane is applied onto said surface of said building envelope using 4″ side laps.
7: The method of claim 1 wherein any uphill courses of detail membrane applied to said surface of building envelope are lapped downhill to ensure watershed.
8: The method of claim 1 wherein, where the detail membrane is applied to said surface of said building envelope using a roller.
9: The method of claim 1 wherein, if the area to be sealed is a rake or other location utilizing a drip edge, the method further comprises installing an underlayment to the underlying roofing material on the building envelope and fastening a drip edge to said underlayment prior to bonding an underside of the exposed cover roofing material to the underlying roofing material, in this case the drip edge and underlayment, on the building envelope.
10: The method of claim 1 wherein, if said detail membrane is bonded to flashing installed at wall sheathing, head laps, side laps, corners or gable end terminations when installing house wraps as an underlying roofing material, said detail membrane is bonded to said underlying roofing material on said building envelope at a height sufficient to avoid visible signs of its installation, once an exposed cover roofing material has been installed.
11: The method of claim 1 wherein, if the detail membrane is to be installed at dormer and cheek wall locations, it is installed over the top of any installed step flashing or head wall flashing and in such a manner that it extends onto said wall.
12: The method of claim 1 wherein, in areas using head wall flashing, said detail membrane is bonded to said head wall flashing prior to being bonded to the underlying roofing material on the building envelope.
13: The method of claim 12 wherein, where said detail membrane is installed at a head wall, said detail membrane is installed over a leading edge of any head wall flashing and is extended up a vertical surface of said head wall prior to bonding of said exposed cover roofing material.
14: The method of claim 1 wherein, if the detail membrane is to be installed in a valley area, the method further comprises, after defining the valley area, snapping a chalk line spanning the length of the valley on which to place an outer edge of the detail membrane, installing the detail membrane along the chalk line, after installing said detail membrane, snapping a second chalk line approximately 1″ outward from an outer edge of said detail membrane, and installing an exposed cover roofing material on top of the detail membrane, aligned with said second chalk line, thereby covering the detail membrane and permitting for any deviation when cutting the valley that may otherwise expose said detail membrane.
15: The method of claim 1 wherein, if the detail membrane is to be installed at an eave the method further comprises prior to installing any underlayment, installing the detail membrane on top of a drip edge in contact with the building envelope, extending up a slope of said roof onto a substrate, extending any abutting underlayment onto said detail membrane without completely covering an upper surface thereof, so as to leave surface for later starter course shingle adhesion, removing said upper release liner, and pressing said underlayment and starter course shingles into said detail membrane, thereby securing them thereto.
16: A method of waterproofing a building envelope and promoting the adhesion of various components thereto comprising: using a detail membrane comprising: a reinforced inner core having first and second sides; a tacky, bitumen-based adhesive bonded to each first and second side of said reinforced inner core; and rubber polymers and/or styrene-rubber block copolymers and/or other elastic materials added to said bitumen-based adhesive; to bonding two like roofing materials together on a building envelope.
17: The method of claim 16 wherein said reinforced core of said detail membrane comprises a non-woven mat of glass fibers interposed between and mutually bonded to each first and second side.
18. The method of claim 2 wherein bonding two like roofing materials together on a building envelope comprises: removing said lower release liner just prior to installation on a first roofing material; pressing the detail membrane onto said first roofing material; removing said upper release liner just prior to installation thereof on a second like roofing material; and pressing said second like roofing material into the exposed, tacky upper surface of said detail membrane.
19: A method of waterproofing a building envelope and promoting the adhesion of various components thereto comprising: using a detail membrane comprising: a reinforced inner core having first and second sides; a tacky, bitumen-based adhesive bonded to each first and second side of said reinforced inner core; rubber polymers and/or styrene-rubber block copolymers and/or other elastic materials added to said bitumen-based adhesive; adhering the detail membrane between any surfaces previously requiring sealing using caulking, plastic roof cement, mastic or any other traditional material used on a sloped roof or the walls of a building exterior.
20: The method of claim 19 wherein said reinforced core of said detail membrane comprises a non-woven mat of glass fibers interposed between and mutually bonded to each first and second side.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Reference is now made to the accompanying drawings. The drawings are not necessarily to scale, with the emphasis instead placed upon the principles of the present invention. Additionally, each of the embodiments depicted are but one of a number of possible arrangements, utilizing the fundamental concepts of the present invention. The drawings are briefly described as follows.
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DETAILED DESCRIPTION
[0029] The present invention provides an improved detail membrane for bonding together materials of a building envelope, which includes a reinforced inner core having first and second sides, a tacky, bitumen-based adhesive on the first and second sides of the reinforced inner core, rubber polymers and/or styrene-rubber block copolymers and/or other elastic materials added to the bitumen-based adhesive. The detail membrane either bonds an underside of an exposed cover roofing material to an underlying roofing material on a building envelope, or bonds two like roofing materials together on a building envelope, or replaces caulking, plastic roof cement, mastic or any traditional material used on a sloped roof or the walls of a building exterior. The roofing structure can be roofing, flashing, protrusions through the roof, or walls that abut the roofing structure.
[0030] In accordance with a preferred embodiment of the invention, a 40 mil thick detail membrane comprises a fiberglass mat embedded with polymer rubbers, such as styrene-butadiene rubber, and styrene-rubber block copolymers, such as styrene-butadiene-styrene and styrene-isoprene-styrene block copolymers, and including emulsifiers or other such products, which are added to bitumen to improve thermal and mechanical properties of the adhesive mass.
[0031] The preferred use of fiberglass versus a polyester inner core permits for the inner core to be bound by the adhesive mass. The fiberglass also prevents elongation tendencies, while being installed, and further prevents the leaking of the adhesive mass, when exposed to higher temperatures, such as when installed under metal roofing. Fiberglass mats have been used in the roofing industry for decades and have proven to be a cost effective, durable solution as a reinforcement and base for application of various materials used in the roofing industry. These mats are readily available from Saint-Gobain Group Company® and other providers of fiberglass mats to manufacturers of roofing products.
[0032] It should be noted that the use of the above-described materials is for illustration purposes and that other polymers and elastomers are suitable, such as described herein. Likewise, the use of fiberglass as a core reinforcement material is for illustration purposes only, and it is understood that other materials can be used to reinforce the detail membrane. Furthermore, the ratios of polymers used in preparing a mixture and the thickness of the fiberglass mat may vary, depending of the physical and chemical properties needed in a waterproofing material and/or for a particular application.
[0033] A release liner preferably is installed on both adhesive sides as a continuous application. Preferably, the release liner is a polyethylene, polypropylene or polyester composition. The release liners preferably are treated on the side facing the adhesive mass, using a silicone adhesive preventing sticking of the adhesive mass to the release liner. The use of a single release liner is possible, if the release liner has a silicone adhesive applied to both sides to permit for unrolling of the product.
[0034] The installation of the detail membrane requires only a minimum of skill and labor, and the product is capable of efficient and inexpensive manufacture. Related materials receiving the detail membrane of the present invention should be clean and dry having been installed according to manufacturer instructions. Surfaces should be above 45 degrees Fahrenheit and may require additional temperature increase and time to fully adhere as designed. Remove the top release liner only once the cover material is ready to be installed, so as to avoid contamination of the adhesive mass. Press the cover material into the adhesive mass, using a roller or by applying adequate pressure, so as to provide for an aggressive bond. An adequate bond requirement has been met, when you pull up on the cover material and a gum-like consistency is evident. The detail membrane is easiest to install when working with an assistant. Begin the application by unrolling approximately 12″ from the roll and remove any backer film as required. With your assistant, unroll approximately 3′ to 4′ at a time, with one person keeping the roll elevated and the other installing the detail membrane. Press or roll the detail membrane into place, continuing this process until area is completed. On smaller applications, one person may be able to complete the application. Generally, include 4″ side laps and uphill courses should always lap downhill courses to ensure watershed.
[0035] A typical problem, and the need for the detail membrane of the present invention, arises when the General Contraction (GC) wants an immediate water-tight building envelope, prior to the trim package being installed. Without the exterior trim package, the roofer has nothing to butt the drip edge to at the eave location, and will generally install the self-adhered underlayment onto the substrate, providing for a temporary water-tight building envelope. The GC is now able to get other mechanical systems underway, such as plumbers and electricians, without completing the exterior trim package, until a later date. Several months may go by and the roofer returns to install the cover roofing materials and is not able to peel the self-adhered underlayment from the substrate, resulting in the drip edge being installed on top of the self-adhered underlayment. The problem with this application is that a gap is left at the interface of the underside of the drip edge and the top side of the poly or granule top surface of the self-adhered underlayment, resulting in water infiltration during inclement weather, such as ice damming, causing water to leak through the soffit and potentially into the building envelope.
[0036] Installing the detail membrane of the present invention from the drip edge onto the underlayment eliminates the gap at the interface of the drip edge and the underlayment, and provides for starter course adhesion, preventing moisture infiltration and providing for a storm-resistant detail.
[0037] Reference is now made to the accompanying drawings, by way of examples, showing various embodiments in which the detail membrane of the present invention is installed, and used in combination with: ridge vents, chimneys, skylights, deck ledgers, eaves (under), eaves (over), head wall flashing, side wall flashing, valleys, windows, doors, house wraps, rake edge and synthetic underlayments.
[0038] Referring now to
[0039] The use of synthetic underlayments is a one billion dollar industry and growing, particularly as the price of oil continues to fluctuate, driving the market away from the use of felt and tar paper underlayments. Examples of such products are: ROOFTOPGUARD II as manufactured by ROSENLEW RKW Finland Ltd. Another non-limiting example of a synthetic underlayment is REXTM SynFelt as manufactured by Alpha Pro Tech Engineered Products, Inc. Yet another non-limiting example of such a product is TITANIUM™ UDL-30 as manufactured by InterWrap Inc.
[0040] These and similar products can be left exposed up to six months, which may become necessary after a natural disaster, such as a hurricane, when it becomes difficult to procure roofing materials and labor. The introduction of the detail membrane of the present invention into a market such as Florida would enhance the performance of synthetic underlayments currently being installed. The use of synthetic underlayment will likely further increase and may become aided, because the use of the detail membrane of the present invention in conjunction with synthetic underlayments is substantially less expensive than using self-adhered underlayment on 100% of the roof deck, as is becoming common in some areas.
[0041] Manufacturers of synthetic underlayment are aware of the problems with prolonged exposure and generally call out the same detail, as exemplified by the application instructions for ROOFTOPGUARD II ™ as follows: “where seams or joints require sealant or adhesive, use only a high quality, low solvent asbestos free plastic roofing cement meeting ASTM D-4586 Type 1 (Asbestos Free), Spec SS-153 Type 1 (Asbestos Free). In areas subject to wind-driven rain where the underlayment will be left exposed to the weather for an extended period of time, seal all seams with a butyl rubber, urethane, or EPDM based caulk or tape sealant”.
[0042] The ROOFTOP GUARD II™ product line is in the process of calling out the detail membrane of the present invention by name, as the detail membrane of the present invention outperforms these other mastics and is a cost effective solution to butyl tapes, which can be difficult to work with and are prone to elongation tendencies.
[0043] The detail membrane of the present invention is compatible with the vast majority of synthetic Underlayments on the market today. The detail membrane can be installed at head and side laps, as well as rake and eave edges, providing for possible starter course adhesion, where applicable. In addition, the detail membrane of the present invention may be installed onto the top side of the synthetic underlayment and extend onto the substrate, thereby providing for additional bonding to the substrate, as is typical with fully-adhered products. This application can decrease the number of fasteners required, while maintaining the requisite holding power to the substrate.
[0044] Referring now to
[0045] The use of the detail membrane of the present invention provides for a bond at the head and side laps of the house wraps, without being exposed to the exterior of the building envelope at any time, as the product is sandwiched between the house wrap and field termination areas, such as gable ends and along the foundation area itself. As an alternative to house wraps tapes, which will not bond the bottom edge of the sheathing or the top edge at a gable end, the detail membrane of the present invention will provide for direct adhesion at the interface of the back side of the house wrap and the exposed side of the substrate, thereby providing for nail seal at these locations.
[0046] Referring now to
[0047] Referring now to
[0048] Referring now to
[0049] Referring now to
[0050] Referring now to
[0051] Referring now to
[0052] Aluminum has long been the flashing of choice for many builders and is widely available and inexpensive while being relatively easy to work with. In 2004 lumber treated with chromated copper arsenate (CCA) was phased out and replaced with alkaline copper quaternary (ACQ) preservatives, which corrode metals, causing aluminum flashing to became less attractive at deck applications. The detail membrane of the present invention offers one way around this corrosion problem by isolating the aluminum from direct contact with framing lumber. The added benefit is that the aluminum now becomes bonded to the product providing for additional waterproofing characteristics.
[0053] Referring now to
[0054] Referring now to
[0055] Referring now to
[0056] Referring now to
[0057] Referring now to
[0058] Referring now to
[0059] In all aspects of the embodiment and drawings, it is understood that the use of a release liner is important, so as to prevent the detail membrane of the present invention from sticking to itself or to other unwanted materials, while under construction. When working with products, such as house wraps and synthetic underlayments, the top release will generally remain in place, until the cover material has been top fastened and positioned, as the aggressive bond may not permit for repositioning. Prior art release liner systems and techniques are disclosed, for example, by U.S. Pat. No. 5,916,654 and U.S. Pat. No. 6,426,129. In the past, paper release liners were common in the building industry and have been replaced with polypropylene type films. In addition to providing for a lower cost product, the polypropylene type films considerably reduce the amount of waste generated from a material, which is meant to be discarded.
[0060] In certain applications, such as in cool weather, for example, it may be desirable to use an additional adhesive together with the detail membrane of the invention. For example a spray adhesive is a great fit for the invention, when the weather is below 45 degrees F. and may not increase until the following year. Also, the spray adhesive product is an excellent complement to house wraps or synthetic underlayments, particularly when installed in colder temperatures and an immediate aggressive bond is required. However, the spray adhesive product does need to flash off for approximately 10-15 minutes, prior to placing the detail membrane, so as to avoid solvent incompatibility.
[0061] The above-described methods of making and using the detail membrane of the present invention provides a cost effective and efficient manner of providing a building structure with storm resistant details. While preferred wraps, assemblies, and methods have been described in detail, various modifications, alterations, and changes may be made without departing from the spirit and scope of the present invention as defined in the appended claims.
[0062] Accordingly, it is to be understood that the embodiments of the invention herein described are merely illustrative of the application of the principles of the invention. Reference herein to details of the illustrated embodiments is not intended to limit the scope of the claims, which themselves recite those features regarded as essential to the invention.
[0063] The foregoing description of the embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of this disclosure. It is intended that the scope of the invention be limited not by this detailed description, but rather by the claims appended hereto.