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Johns Manville patents


Recent patent applications related to Johns Manville. Johns Manville is listed as an Agent/Assignee. Note: Johns Manville may have other listings under different names/spellings. We're not affiliated with Johns Manville, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "J" | Johns Manville-related inventors


Base interlining, methods for their manufacture and application thereof

The invention relates to a novel binder system and its use for bonding textile fabrics as well as products containing such bonded textile fabrics. The materials according to the invention are suitable for manufacturing base interlinings which may be used for manufacturing base interlinings for sarking, roofing and sealing membranes,... Johns Manville

Submerged combustion melters and methods of feeding particulate material into such melters

Methods of melting particulate feedstocks in a submerged combustion melter employing an arrangement of one or more submerged combustion burners emitting combustion products into turbulent molten material. Operating the burners such that there is established a turbulent melting region extending vertically from the floor to a splash region, the splash... Johns Manville

Fiber-reinforced composite articles and methods of making them

Methods of making prepregs are described. The methods include the steps of forming a fiber-containing substrate, and contacting the fiber-containing substrate with a resin mixture. The resin mixture may include polymer particles mixed in a liquid medium, and the polymer particles may be coated on the fiber-containing substrate to form... Johns Manville

Binder-consolidated textile fabrics and methods of their manufacture and use

wherein a sum of components a) through e) is 100% by dry weight of the binder system. Method of making the textile fabrics consolidated with binders made from the binder systems are also described.... Johns Manville

Submerged combustion melters, wall structures or panels of same, and methods of using same

Submerged combustion burner panels, submerged combustion melters including one or more of the panels, and methods of using the same. The burner panel includes a panel body including a fluid-cooled portion and a protective non-fluid cooled portion. An exterior surface defined by the fluid-cooled portion, and an interior surface defined... Johns Manville

Insulation packaging system

The present disclosure is directed to an insulation packaging system. The insulation packaging system includes a plurality of insulation packages with first ends and second ends. The plurality of insulation packages defining an axis. A first film wraps around the axis to compress and couple the plurality of insulation packages... Johns Manville

Continuous flow submerged combustion melter cooling wall panels, submerged combustion melters, and methods of using same

Continuous flow submerged combustion melter cooling wall panels, including a primary metal plate, and several 90 degree metal pieces welded to the primary metal plate in parallel configuration, each of the 90 degree metal pieces having metal leg plates forming a 90 degree vertex there between. Each metal leg plate... Johns Manville

Consumable tip burners , submerged conbustion melters including same, and methods

Combustion burners, burner panels, submerged combustion melters including the panels, and methods of using the same are disclosed. In certain embodiments, the burner includes an annular liquid cooled jacket defining a central longitudinal through passage. An inner conduit is positioned substantially concentrically within an outer conduit, the latter positioned in... Johns Manville

Impingement burners, conditionng channels including same, and methods

Fluid-cooled impingement burners have an external conduit and a first internal conduit substantially concentric therewith forming a first annulus for passing a cooling fluid. A second internal conduit forms a second annulus between the first and second internal conduits. A burner tip body defined by an inner wall, an outer... Johns Manville

Reinforced thermoplastic products and methods of making the same

A reinforced thermoplastic product may include a main body and a fabric reinforcing sheet that is disposed within a wall of the main body. The wall of the main body may be formed of or from a cast thermoplastic material and the fabric reinforcing sheet may extend circumferentially around the... Johns Manville

Apparatus, systems, and methods for pre-heating feedstock to a melter using melter exhaust

Feedstock supply structure apparatus, including an exhaust conduit fluidly and mechanically connectable to a structure defining a melting chamber, the exhaust conduit positioned at an angle to vertical ranging from 0 to about 90 degrees. The exhaust conduit may include a heat exchange substructure, or the conduit itself may serve... Johns Manville

System for producing a fully impregnated thermoplastic prepreg

Fiber-containing polymethyl methacrylate (PMMA) prepregs are described that include a first and second plurality of fibers. The second plurality of fibers is made from a different material than the first plurality of fibers. The PMMA prepregs also contain a polymerized resin that includes polymethyl methacrylate that has been formed from... Johns Manville

Spray foams containing non-halogenated fire retardants

A spray foam formulation used to form a spray foam insulation layer in a wall structure is described. The formulation may include the reaction product of a polyisocyanate compound and a polyol compound; a fire retardant chosen from at least one of a non-halogenated fire retardant; and a reactive halogen-containing... Johns Manville

Effective discharge of exhaust from submerged combustion melters and methods

Submerged combustion methods and systems including a melter equipped with an exhaust passage through the ceiling or the sidewall having an aggregate hydraulic diameter. Submerged combustion burners configured to create turbulent conditions in substantially all of the material being melted, and produce ejected portions of melted material. An exhaust structure... Johns Manville

Methods of producing thermoplastic composites using fabric-based thermoplastic prepregs

A thermoplastic product includes a fabric-based reinforcing sheet and a polymerized thermoplastic material. The fabric-based reinforcing sheet is wound about a mandrel to form a plurality of layers having a cross-sectional shape that corresponds to the mandrel. The fabric-based reinforcing sheet includes a plurality of fiber bundles, which may have... Johns Manville

Cool roof systems and methods

A membrane roofing system that includes a waterproof layer that protects an insulation layer and a granule coupled to the waterproof layer. The granule has a 60% or greater reflectivity that reduces transmission of ultraviolet light to the waterproof layer. The granule is coated in a fluorinated acrylic copolymer that... Johns Manville

Small pore size nonwoven mat with hydrophilic/acid resistant filler used in lead acid batteries and applications therefor

According to one embodiment, a nonwoven fiber mat includes between 10% and 50% by weight of a plurality of first glass fibers having an average diameter of less than 5 μm and between 50% and 90% by weight of a plurality of second glass fibers having an average diameter of... Johns Manville

Manufacturing thermoplastic composites and articles

Embodiments of the present technology may include a method of making a thermoplastic composite strand. The method may include melting a reactive thermoplastic resin to form a molten reactive resin. The method may also include fully impregnating a plurality of continuous fibers with the molten reactive resin in an impregnation... Johns Manville

Lead-acid battery systems and methods

A lead-acid battery includes a first electrode with a first grid, and a first mixture pasted onto the first grid. The first mixture includes a first plate material with acid resistant glass fibers that resist shedding of the first plate material during operation of the lead-acid battery.... Johns Manville

New binder composition

The invention relates to a new binder composition which is particularly suitable for the manufacture of composite materials utilizing such new binder composition in the required nonwoven materials. Composite materials using such new binder composition in their nonwoven part are suitable, in particular, for composites materials for interior construction, for... Johns Manville

Post-manufacturing processes for submerged combustion burner

A portion of a submerged combustion burner is disposed into a pressure vessel. The portion of the submerged combustion burner has a welded area that has a first microstructure defined by a first number of voids. The vessel is filled with an inert gas, pressurized, and heated. Pressurizing and heating... Johns Manville

System and making high-density cover boards

A high-density foam cover board, including a high-density foam layer, wherein the high-density foam layer comprise polyurethane, polyisocyanurate, a filler, and a viscosity additive.... Johns Manville

Fiber reinforced thermoset composites and methods of making

Methods of making a fiber-reinforced composite are described. The methods may include applying a sizing composition to a plurality of fibers to make sized fibers, where the sizing composition may include at least one of a curing agent or an accelerator for a resin composition. The sized fibers may be... Johns Manville

Fiber-reinforced composites made with thermoplastic resin compositions and reactive coupling fibers

Methods of making fiber-resin compositions are described. The methods may include the providing of a thermoplastic resin to an extruder, where the thermoplastic resin may include at least one reactive moiety capable of forming a covalent bond with a coupling agent on a plurality of reactive fibers. The methods may... Johns Manville

Catalyst formulations with reduced leachable salts

Embodiments of the present technology may include a carbohydrate binder composition. The carbohydrate binder composition may include a carbohydrate, a nitrogen-containing compound, and a catalyst. The catalyst may catalyze a reaction between the carbohydrate and the nitrogen-containing compound. The catalyst may be water soluble in the composition but may become... Johns Manville

Acid resistant glass mats that include binders with hydrophilic agents

Glass-fiber mats for lead-acid batteries are described. The glass-fiber mats may include a plurality of glass fibers held together with a binder. The binder may be made from a binder composition that includes (i) an acid resistant polymer, and (ii) a hydrophilic agent. The hydrophilic agent increases the wettability of... Johns Manville

Methods and systems for making reinforced thermoplastic composites, and the products

Various methods and systems of making inorganic fiber/flake reinforced composites having a thermoplastic matrix are disclosed. The methods use systems similar to those used to make inorganic fiber/flake reinforced products having a thermoset matrix, but the systems and methods are modified to use thermoplastic precursor monomer(s) followed by in situ... Johns Manville

Coated glass reinforced facer

According to one embodiment, a method of forming a facer includes forming a first layer of nonwoven glass fibers and positioning a second layer of reinforcement fibers atop the first layer of nonwoven glass fibers. The method also includes coating the first layer of nonwoven glass fibers and/or the second... Johns Manville

Bushing with ribbed tip plate

A bushing system may include a bushing that is configured to receive a molten material. The bushing may include a plate defining a first plurality of apertures through which the molten material flows. The plate may include a longitudinal axis, as well as a first side wall and a second... Johns Manville

High temperature calcium silicate insulation

A calcium silicate insulation product includes a calcium silicate hydrate matrix that is predominantly but not substantially all xonotlite, for example 51-90 weight percent xonotlite and 10-49 weight percent tobermorite. The insulation product also contains wollastonite, and may include fines of lime and silica and reinforcing carbon fibers. A method... Johns Manville

Wicking nonwoven mat from wet-laid process

Examples of the present technology may include a method of making a non-woven fiber mat. The wet nonwoven fiber mat may include a first plurality of first glass fibers and a second plurality of second glass fibers. The first plurality of first glass fibers may have nominal diameters of less... Johns Manville

Thermal energy storage use with solar power generation systems

Various arrangements are provided related to thermal energy coordination systems. A thermal energy coordination system may analyze solar irradiance measurements to identify an overgeneration solar energy event. The system may activate a thermal energy storage event to coincide with the overgeneration solar energy event at the plurality of solar panels.... Johns Manville

Formaldehyde-free binder compositions and methods of making the binders under controlled acidic conditions

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of... Johns Manville

Reduced salt precipitation in carbohydrate containing binder compositions

Aqueous binder compositions with reduced rates of salt precipitation are described. The compositions may include a carbohydrate and a sequestrant for sequestering one or more multivalent ions (e.g., Ca2+, Mg2+, Ba2+, Al3+, Fe2+, Fe3+, etc.). The sequestrant reduces a precipitation rate for the multivalent ions from the aqueous binder composition.... Johns Manville

08/10/17 / #20170226734

Continuous wall assemblies and methods

According to one embodiment, an insulated structure includes a frame comprising a plurality of wall studs coupled together and a plurality of foam boards attached to the frame to form a continuous insulative wall. A plurality of fasteners attaches the foam boards to the frame. Each fastener includes an elongate... Johns Manville

07/20/17 / #20170203989

Processes for producing molten glasses from glass batches using turbulent submerged combustion melting, and systems for carrying out such processes

Processes and systems for producing molten glass using submerged combustion melters, including densifying an initial composition comprising vitrifiable particulate solids and interstitial gas to form a densified composition comprising the solids by removing a portion of the interstitial gas from the composition. The initial composition is passed from an initial... Johns Manville

07/06/17 / #20170191270

Fire resistant composite boards and methods

Embodiments of the invention provide roofing boards and roofing systems having improved fire resistance properties and methods related to the same. According to one aspect, a roofing system is provided. The roofing system includes roofing panels positioned atop structural support members to form a roof deck. Roofing boards are positioned... Johns Manville

06/22/17 / #20170175945

Insulation product with inward curling closure flap

A pipe insulation product including a core of insulating material and a laminate surrounding the core and bonded to the core. The core may include an outer surface; an inner surface; and a wall extending between the outer and inner surfaces. The laminate may include a foil or metallized polymeric... Johns Manville

06/08/17 / #20170158544

Systems and methods for making foamed glass using submerged combustion

Submerged combustion systems and methods of use to produce foamed glass. One system includes a submerged combustion melter having an outlet, the melter configured to produce an initial foamy molten glass having a density and comprising bubbles filled primarily with combustion product gases. The initial foamy molten glass is deposited... Johns Manville

06/08/17 / #20170158558

Curable fiberglass binder comprising salt of inorganic acid

A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an aldehyde or ketone and an amine salt of an inorganic acid. The composition when applied to fiberglass is cured to form a water-insoluble binder which exhibits good adhesion to glass. In a preferred embodiment... Johns Manville

06/08/17 / #20170158800

Formaldehyde-free melamine carbohydrate binders for improved fire-resistant fibrous materials

Embodiments of the present technology include a formaldehyde-free binder composition. The composition may include melamine. The composition may also include a reducing sugar. In addition, the binder composition may include a non-carbohydrate aldehyde or ketone. Embodiments may also include a method of making a formaldehyde-free binder composition. The method may... Johns Manville

06/08/17 / #20170158904

Formaldehyde-free binder compositions for fibrous material

Compositions for binding organic or inorganic fibers is described. The compositions may include an aqueous solution having a pH of about 4.5 or more. The aqueous solution may include a polycarboxy polymer that is about 10%, by wt., to 100%, by wt., of a butenedioic acid or butenedioic anhydride; and... Johns Manville

06/08/17 / #20170158923

Formaldehyde-free binder compositions and methods of making the binders

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, an organic anhydride, an alkanol amine, and a nitrogen-containing salt of an inorganic acid. The binder compositions may be applied to fibers, such as glass fibers, to make formaldehyde-free, fiber-reinforced composites. Methods of making fiber-reinforced composites are also described,... Johns Manville

05/25/17 / #20170145609

Curable fiberglass binder comprising salt of inorganic acid

Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a nitrogen-containing salt of an inorganic acid, and an acidic compound. The acidic compound may be an organic acid, such as maleic acid or citric acid among others. The acidic compound is supplied in quantities that lower the pH... Johns Manville

05/25/17 / #20170146179

Hybrid high temperature insulation

According to one aspect, a hybrid high temperature thermal insulation includes a mix of inorganic granules. The granular mix includes at least 70 weight percent porous inorganic granules in the form of expanded perlite, and at most 30 weight percent second porous inorganic granules other than expanded perlite. The hybrid... Johns Manville

05/04/17 / #20170120544

System for producing a fully impregnated thermoplastic prepreg

According to one embodiment, a system for manufacturing a fully impregnated thermoplastic prepreg includes a mechanism for moving a fabric or mat and a drying mechanism that removes residual moisture from at least one surface of the fabric or mat. The system also includes a resin application mechanism that applies... Johns Manville

05/04/17 / #20170121474

Fiber reinforced thermoplastic composites and methods of making

Methods of making a fiber-reinforced thermoplastic polyurethane composite are described. The methods may include applying a sizing composition to a plurality of fibers to make sized fibers, where the sizing composition may include at least one curative for a thermoplastic polyurethane prepolymer. The sized fibers may be contacted with a... Johns Manville

05/04/17 / #20170121903

Base interlining, methods for their manufacture and application thereof

The invention relates to a novel binder system and its use for bonding textile fabrics as well as products containing such bonded textile fabrics. The materials according to the invention are suitable for manufacturing base interlinings which may be used for manufacturing base interlinings for sarking, roofing and sealing membranes,... Johns Manville

04/27/17 / #20170113958

Systems and methods for glass manufacturing

Submerged combustion systems and methods of use to produce glass. One system includes a submerged combustion melter having a roof, a floor, a wall structure connecting the roof and floor, and an outlet, the melter producing an initial foamy molten glass. One or more non-submerged auxiliary burners are positioned in... Johns Manville

04/20/17 / #20170107139

Processing organics and inorganics in a submerged combustion melter

Primary inorganic feedstock material is introduced into the melting region of an SCM melter. The material is heated with a burner to form a turbulent melt matrix. The burner exit is disposed below the top surface of the turbulent melt matrix. A mixture of secondary inorganic material and organic material... Johns Manville

04/20/17 / #20170108158

Systems and methods for insulating a pipe

A pipe insulation product including a core of insulating material and a laminate. The core includes a cylindrical outer surface; a cylindrical inner surface; and a wall extending between the cylindrical outer surface and the cylindrical inner surface. The laminate includes a metallized polymeric film sheet layer forming an inner... Johns Manville

04/06/17 / #20170096358

Controlling foam in apparatus downstream of a melter by adjustment of alkali oxide content in the melter

Controlling foam in apparatus downstream of a melter by adjustment of alkali oxide content in the melter. One method includes feeding a feedstock into a submerged combustion melter (SCM) apparatus having an internal space containing a flowing or non-flowing molten mass of foamed glass comprising molten glass and bubbles entrained... Johns Manville

03/30/17 / #20170092916

Battery containing acid resistant nonwoven fiber mat with biosoluble microfibers

Acid-resistant and biosoluble glass compositions and products made therefrom. The glass compositions exhibit acid resistance, durability in white water as may be used in a wet laid fabrication process, and good biosolubility. In another aspect, a glass fiber mat is made from such a glass composition, and may be used... Johns Manville

03/23/17 / #20170081231

Systems and methods for mechanically binding loose scrap

A method of forming a rope material from a loose feed scrap includes a number of operations to mechanically bind the loose feed scrap. The feed scrap is collected. The feed scrap is twisted and compressed, operations that may be performed simultaneously. This twisted and compressed feed scrap, now in... Johns Manville

03/23/17 / #20170081799

Modified fibers for use in the formation of thermoplastic fiber-reinforced composite articles and process

A surface-modified fibrous material is provided for incorporation in a thermoplastic matrix to form a fiber-reinforced composite article. Good binding between the fibrous material and the thermoplastic matrix is achieved through the presence of finely roughened surfaces on the fibers of nanoparticles of an inorganic material. Such nanoparticles are provided... Johns Manville

03/23/17 / #20170081855

Roofing membranes having multiple adhesive regions and method therefor

A roofing membrane may include a main body, a first material, and a second material. The first material may be bonded to the main body and positioned toward a first edge thereof. The second material may be bonded to the main body and positioned toward a second edge thereof. The... Johns Manville

03/16/17 / #20170073262

Submerged combustion melters having an extended treatment zone and methods of producing molten glass

A submerged combustion melter includes a floor, a roof, and a sidewall structure connecting the floor and roof defining an internal space. A first portion of the internal space defines a melting zone, and a second portion defines a fining zone immediately downstream of the melting zone. One or more... Johns Manville

03/16/17 / #20170074506

Methods of melting feedstock using a submerged combuston melter

Methods of maximizing mixing and melting in a submerged combustion melter (SCM) are described. One method includes melting an inorganic feedstock in an SCM using an arrangement of two or more submerged combustion (SC) burners, the SCM having a length (L) and a width (W), a centerline (C), a north... Johns Manville

03/16/17 / #20170074590

Change-out system for submerged combustion melting burner

Liquid is delivered into a void between a burner and a melt vessel, which causes a skull of a material to form within an interior of the melt vessel. The void is in fluidic communication with the interior of the melt vessel. The burner is moved from a first position... Johns Manville

03/09/17 / #20170066158

System for producing a fully impregnated thermoplastic prepreg

According to one embodiment, a system for manufacturing a polymethyl methacrylate (PMMA) prepreg includes a mechanism for continuously moving a fabric or mat and a resin application component that applies a methyl methacrylate (MMA) resin to the fabric or mat. The system also includes a press mechanism that presses the... Johns Manville

03/09/17 / #20170066200

Ulti-part thermoplastic polymers

Methods of making fiber reinforced composite articles are described. The methods may include the step of providing a pre-impregnated fiber-containing thermoplastic material to a mold for the article. The pre-impregnated fiber-containing thermoplastic material may include: (i) a plurality of fibers, and (ii) a first thermoplastic polymer made from a first... Johns Manville

03/09/17 / #20170066672

Apparatus, systems, and methods for pre-heating feedstock to a melter using melter exhaust

Feedstock supply structure apparatus, including an exhaust conduit fluidly and mechanically connectable to a structure defining a melting chamber, the exhaust conduit positioned at an angle to vertical ranging from 0 to about 90 degrees. The exhaust conduit may include a heat exchange substructure, or the conduit itself may serve... Johns Manville

03/09/17 / #20170066888

System for producing a fully impregnated thermoplastic prepreg

Fiber-containing polymethyl methacrylate (PMMA) prepregs are described that include a first and second plurality of fibers. The second plurality of fibers is made from a different material than the first plurality of fibers. The PMMA prepregs also contain a polymerized resin that includes polymethyl methacrylate that has been formed from... Johns Manville

03/02/17 / #20170059153

Burner panels, submerged combustion melters, and methods

Combustion burner panels, submerged combustion melters including one or more of the panels, and methods of making the same are disclosed. In certain embodiments, the burner panel includes a panel body having first and second major surfaces, at least one oxidant through-passage extending from the first to the second major... Johns Manville

Patent Packs
03/02/17 / #20170059154

Burner panels including dry-tip burners, submerged combustion melters, and methods

Combustion burner panels, submerged combustion melters including one or more of the panels, and methods of using the same are disclosed. In certain embodiments, the burner panel includes a panel body having a first major surface defined by a lower fluid-cooled portion of the panel body, and a second major... Johns Manville

02/16/17 / #20170044040

Post-manufacturing processes for submerged combustion burner

A portion of a submerged combustion burner is disposed into a pressure vessel. The portion of the submerged combustion burner has a welded area that has a first microstructure defined by a first number of voids. The vessel is filled with an inert gas, pressurized, and heated. Pressurizing and heating... Johns Manville

02/09/17 / #20170037618

Continuous wall assemblies and methods

According to one embodiment, an insulated structure includes a frame comprising a plurality of wall studs coupled together and a plurality of foam boards attached to the frame to form a continuous insulative wall. A plurality of fasteners attaches the foam boards to the frame. Each fastener includes an elongate... Johns Manville

02/02/17 / #20170030014

Coated non-woven fabrics from inorganic fibers and functional, decorative layers for floor coverings, ceiling coverings and wall coverings manufactured therefrom

The non-woven fabric made of inorganic fibers according to the invention, in particular glass non-woven fabrics, are in particular suitable for producing decorative coatings for floor coverings, ceiling coverings and wall coverings.... Johns Manville

01/26/17 / #20170022083

Submerged combustion glass manufacturing system and method

Submerged combustion glass manufacturing systems include a melter having a floor, a roof, a wall structure connecting the floor and roof, and an exhaust passage through the roof. One or more submerged combustion burners are mounted in the floor and/or wall structure discharging combustion products under a level of material... Johns Manville

01/26/17 / #20170022333

Fiber-reinforced composites made with thermoplastic resin compositions and reactive coupling fibers

Methods of making fiber-resin compositions are described. The methods may include the providing of a thermoplastic resin to an extruder, where the thermoplastic resin may include at least one reactive moiety capable of forming a covalent bond with a coupling agent on a plurality of reactive fibers. The methods may... Johns Manville

01/19/17 / #20170015579

Methods and systems for destabilizing foam in equipment downstream of a submerged combustion melter

Methods and systems for de-stabilizing foam produced in submerged combustion melters. A molten mass of glass and bubbles is flowed into an apparatus downstream of a submerged combustion melter. The downstream apparatus includes a floor, a roof and a wall connecting the floor and roof, but is devoid of submerged... Johns Manville

01/12/17 / #20170008239

System for producing a fully impregnated thermoplastic prepreg

According to one embodiment, a system for manufacturing a fully impregnated thermoplastic prepreg includes a mechanism for moving a fabric or mat and a drying mechanism that removes residual moisture from at least one surface of the fabric or mat. The system also includes a resin application mechanism that applies... Johns Manville

01/12/17 / #20170008795

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

Processes and systems for producing glass fibers having regions devoid of glass using submerged combustion melters, including feeding a vitrifiable feed material into a feed inlet of a melting zone of a melter vessel, and heating the vitrifiable material with at least one burner directing combustion products of an oxidant... Johns Manville

01/12/17 / #20170012574

Methods and devices for coupling solar panel support structures and/or securing solar panel support structures to a roof

A mounting unit for mounting a solar panel on a roof includes a base having a first flange and a second flange that extend laterally from the base and a mounting surface positioned above the base via walls that connect the mounting surface and the base. The mounting surface is... Johns Manville








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