Abstract: A prefabricated concrete form with vertical spacers between fill forming cladding with cut-outs in the spacers having horizontal rebar received therethrough and received therein. Stand-offs are provided between the vertical spacers with vertical rebar received on the stand-offs. In one version, the stand-offs are attached to the horizontal rebar. In other versions, the stand-offs are attached to the spacers. A cut-out is formed in one of the claddings to form an auxiliary fill space on the outside of the cladding, which when filled with concrete, upon hardening, forms a ledge for supporting a stair structure.

Abstract: A joining material used for joining side surfaces of a plurality of silicon carbide-based honeycomb segments to each other to produce a silicon carbide-based honeycomb structure. The joining material contains from 0.1 to 50% by mass of processed powder generated in the production of the silicon carbide-based honeycomb segments and/or the silicon carbide-based honeycomb structure. The joining material has an average particle diameter D50 of from 0.5 to 60 ?m.

Abstract: A housewrap is a multi-layer drainage wrap. A nonwoven base web has a three-dimensional pattern embossed therein on one surface of the web. This embossed web is then extrusion coated with a polymer coating. The coating is extrusion-coated on to embossed side of the nonwoven base web. The nonwoven base web has the three-dimensionally embossed and coated side as its outward facing surface. The coated base web is then activated by stretching to provide moisture vapor permeance at a rate that allows a building to breathe. The result is a housewrap that is textured on both the inside and outside faces of the housewrap. The texture and weather resistive coating on exterior side facilitates both drainage of water off of the outside face of the housewrap and the circulation of air and moisture around and through the inside face of the housewrap and promotes a tighter seal and better adhesion to flashing tapes reducing further the points of entry for water into the structure.

Abstract: A carbon fiber reinforced plastic structure has a low surface roughness and has reduced deformation due to residual stress, changes in temperature, etc., and a processing apparatus that uses the structure, are disclosed. The carbon fiber reinforced plastic structure (CFRP structure) includes a carbon fiber reinforced plastic member (CFRP member), and a resin layer formed on a first surface of the carbon fiber reinforced plastic member, the resin layer including an opposite surface that is opposite to a surface facing the first surface, the opposite surface having a surface roughness that is less than a surface roughness of the first surface of the carbon fiber reinforced plastic member.

Abstract: A combustor liner for a gas turbine engine includes at least one liner segment that has an external wall dimensioned to bound a combustion chamber. The external wall extends between leading and trailing edges in an axial direction and extends between opposed mate faces in a circumferential direction. A cooling circuit is defined by the external wall. A plurality of heat transfer features are distributed in the cooling circuit to define first and second prioritized flow regions on opposed sides of a first restricted flow region.

Abstract: A 3-dimensional printed part can include a part body including a first matrix of fusing agent and thermoplastic polymer powder, a security feature including a second matrix of fusing agent, thermoplastic polymer powder, and photoluminescent agent, and a masking feature including a third matrix of fusing agent and thermoplastic polymer powder. The security feature can be positioned beneath and visible through the masking feature upon photoluminescent emission of the security feature.

Abstract: The invention relates to a roofing underlay (1), especially one intended for use as roof cladding underlay and/or roof lining membrane, having at least one outer nonwoven layer (2), at least one inner nonwoven layer (3) and at least one microporous membrane layer (4) based on at least one polyolefin plastic, wherein the membrane layer (4) is arranged between the outer nonwoven layer (2) and the inner nonwoven layer. According to the invention, it is provided that at least one further microporous membrane layer (5) based on a polyolefin plastic is provided between the outer nonwoven layer (2) and the inner nonwoven layer and the further membrane layer (5) is separated from the membrane layer (4) by a separating layer (6), wherein the separating layer (6) is water-permeable and/or embodied as a structure made of fibers, especially nonwoven.

Abstract: A method of printing a three-dimensional color object having a contoured surface onto a substrate includes printing color ink layers and structural ink layers. A color ink layer is printed onto the substrate. Structural ink layers are printed onto the color ink layer to build the three-dimensional shape of the object. The contoured surface is formed from varying the heights of pixel columns in the printing information. The heights of the pixel columns may be varied by printing different numbers of layers in adjacent columns or by printing the same number of layers in adjacent columns where some pixels in a column have different thicknesses than other pixels in the column.

Abstract: Provided are roofing granules, such as solar-reflective roofing granules, methods for making them and their use in roofing products. In one aspect, the disclosure provides a collection of solar-reflective roofing granules having a solar reflectivity of at least 70%, wherein substantially each roofing granule comprises an inner layer, an outer layer disposed on an outer surface of the inner layer and substantially surrounding the inner layer, wherein the inner layer and the outer layer are formed from substantially the same composition but have substantially different porosities, the outer layer having a porosity substantially lower than the porosity of the outer layer. Methods for making such roofing granules can include forming layers of substantially the same first and second compositions, wherein the forming of the layer of the second composition is performed under substantially different conditions from the forming of the layer of the first composition.

Abstract: A honeycomb filter includes a pillar-shaped honeycomb substrate and a plugging portion provided at an end portion on either an inflow or outflow end face side of cells, wherein, in a section orthogonal to the cell extending direction, the shapes of an inflow cell having the plugging portion and an outflow cell having the plugging portion are hexagonal. In the plurality of cells, a plurality of inflow cells surround one outflow cell such that one side of the inflow cell and one side of the outflow cell adjacent to the inflow cell are parallel. The partition wall includes a first partition wall and a second partition wall, at least one of the first partition walls is configured such that a ratio of a thickness of the second partition wall to the first partition wall is 1.0 to 2.5, and a total open frontal area is 35% to 95%.

Abstract: A system and method for a security glass system. The system includes a pane of glass and a security film adhered to the glass. A bracket has a glass coupler portion, a gap definer, and a support coupler. The glass coupler is adhered to the security film via an adhesive. The support coupler is adhered to the support via an adhesive. The result is a securement system which can withstand more blows than traditional glass.

Abstract: A system and method for a security glass system. The system includes a pane of glass and a security film adhered to the glass. A bracket has a glass coupler portion, a gap definer, and a support coupler. The glass coupler is adhered to the security film via an adhesive. The support coupler is adhered to the support via an adhesive. The result is a securement system which can withstand more blows than traditional glass.

Abstract: A solid oxide fuel cell includes a plate-shaped cell with a structure in which a fuel electrode, a solid electrolyte, and an air electrode are stacked on a metal support, and current collectors which are stacked to sandwich both sides of the cell. The current collectors are in contact with both sides of the cell. The cell includes deformation guides which are easy to deform compared to other part of the cell. When the cell deforms due to thermal expansion, the cell 1 is allowed to easily deform around the deformation guides.

Abstract: A self-folding machine comprises a laminate including a flexible layer with a first side and a second side; a first rigid layer including at least one gap laminated to the first side of the flexible layer; a second rigid layer including at least one gap laminated to the second side of the flexible layer, wherein the rigid layers are more rigid than the flexible layer; a first contractible layer laminated to the first rigid layer and extending across at least one gap in the first rigid layer; and a second contractible layer laminated to the second rigid layer and extending across at least one gap in the second rigid layer, wherein the first and second contractible layers retract to respectively create folds in the machine across gaps in the first and second rigid layers when activated.

Abstract: A composite structure is provided. The composite structure includes a first stiffener, a second stiffener, and an intermediate structure positioned between the first and second stiffeners such that the first stiffener is coupled to a first side of the intermediate structure, and such that the second stiffener is coupled to a second opposing side of the intermediate structure. A first radius gap is defined at least partially between the first stiffener and the intermediate structure, and a second radius gap is defined at least partially between the second stiffener and the intermediate structure.

Abstract: A coating composition including an inorganic sol material and an organic colorant is applied to mineral particles and cured at a temperature less than 200 degrees Celsius.

Abstract: A wall panel fastening structure for mounting and demounting each panel without moving the other panels is provided on a supporting frame by using a projecting and retracting pin, wherein the wall panel is provided with a wall board part and a fastening part projecting on a back surface of the wall board part; the supporting frame is provided with an accommodating space for accommodating the projecting and retracting pin, and placed along a gap between adjacent wall panels and facing the fastening part; the accommodating space is open to the gap; the projecting and retracting pin is provided with a thread portion and screwed into a thread hole provided in a flange of the supporting frame; and the wall panel is locked to the supporting frame by inserting a front end portion of the projecting and retracting pin into a locking hole formed in the fastening part.

Abstract: Silica aerogels with improved properties are disclosed together with methods for synthesizing such aerogels. The improved properties include lower thermal conductivity (better insulating capacity), lower acoustic velocity, lower dielectric constant and improved ductility. Greater tunability of the refractive index can also be achieved. The silica aerogels are prepared by a sol-gel processing method that provides better control of the formation of aerogel structures. Generally speaking, the improvements arise from control of the synthesis to create a morphology of primary clusters and diverse-sized secondary clusters of dense silica aerogels separated by less densely packed regions. By providing a broader range of secondary clusters and/or pore sizes and loose connectivity between clusters, reductions can be achieved in thermal conductivity and flexural modulus.

Abstract: An insulation element for thermal and/or acoustic insulation of a flat roof or a flat inclined roof comprises a first layer made of mineral fibers, and a second layer made of at least one fabric, whereby the second layer is fixed to a major surface of the first layer by an adhesive. To reduce the adhesive costs and the risk of blistering the roof membrane at the application stage, the second layer is impregnated with a filler. The second layer in combination with the filler has a permeability allowing hot air gases to pass through the second layer and closing the second layer for the penetration of a glue or adhesive in the direction to the first layer.

Abstract: This application relates to a light-weight, multi-purpose construction panel. The panel may be formed, for example, from molded plastic. Each panel includes a substantially planar deck on a first side thereof and a second side comprising alternating male and female sleeves arranged in honeycomb-like compartments defined by a plurality of wall elements. A pair of panels may be releasably coupled together with their respective second sides facing inwardly to form a construction assembly. When a pair of panels is coupled together, the male sleeves of one panel matingly fit within the females sleeves of the other panel, and vice versa. The panel assemblies may be used for many different construction applications including flooring, roofing and wall structures.

Abstract: A mobile partitioning wall is disclosed and provided with several wall elements, which are displaceably suspended at running rails. The wall elements have a structure that is simple to manufacture and to mount and is universally usable. The wall elements are formed without supporting frame.

Abstract: A wall panel fastening structure for mounting and demounting each panel without moving the other panels is provided on a supporting frame by using a projecting and retracting pin, wherein the wall panel is provided with a wall board part and a fastening part projecting on a back surface of the wall board part; the supporting frame is provided with an accommodating space for accommodating the projecting and retracting pin, and placed along a gap between adjacent wall panels and facing the fastening part; the accommodating space is open to the gap; the projecting and retracting pin is provided with a thread portion and screwed into a thread hole provided in a flange of the supporting frame; and the wall panel is locked to the supporting frame by inserting a front end portion of the projecting and retracting pin into a locking hole formed in the fastening part.

Abstract: A method of making a floor panel includes the steps of: providing an adhesive on a release member; laminating or marrying the release member to a bottom layer such that the adhesive is between the release member and the bottom layer; removing a portion of the release member to expose an area of the adhesive; and adhering a top layer to the area such that the top layer is offset with respect to the bottom layer in a direction of length and width and a marginal end portion of a top surface of the bottom layer and a marginal end portion of the bottom surface of the top layer is exposed.

Abstract: A modular construction system in which a number of three dimensional construction elements are adjoined to form a modular wall, ceiling or floor assembly. In their pre-assembly condition, each three dimensional construction element is formed from a planar metallic sheet (10) sub-divided by fold lines (12a, 12b) into panels (14, 16, 18) defining a multi-panelled sheet. Each panel lies in a common plane and at least one of the panels is deformable along its fold lines out of said common plane to form an assembled three-dimensional construction element for adjoining to other three-dimensional construction elements. At least one panel is provided with an opening (14a, 16a) dimensioned to allow the passage of a reinforcement or stabilising material through the assembled three-dimensional construction element.

Abstract: A wall panel configured for quick and easy manufacturing and assembly to create affordable, sustainable buildings. The wall panel has a main wall section having an inside-facing surface and an outside-facing surface opposite the inside-facing surface; a first set of elongated studs embedded in the outside-facing surface of the main wall section, each elongated stud in the first set of elongated studs having a length; a second set of elongated studs embedded in the inside-facing surface of the main wall section, each elongated stud in the second set of the elongated studs having a length; wherein the length of each elongated stud of the first set of elongated studs is greater than a height of the main wall section, and wherein the length of each elongated stud of the second set of elongated studs is equivalent to the height of the main wall section.

Abstract: Systems and methods providing a modular building having pre-fabricated panel wall components are easily assembled to form a predetermined, energy efficient structure that provides for mating alignment and securement of the modular panels with each other along their adjoining seams.

Abstract: Preforms for open structured (lattice) composite tubular members manufactured from large (i.e. high filament count) prepreg yarns on a conventional maypole braiding machine, and subsequently cured to produce fiber reinforced composites of high strength and light weight.

Abstract: A panelized, reusable barrier system allowing for containment of construction areas in hospitals and other clean room environments. Panels are adjustable in height from 92? to 120?. Panels are available in 12?, 24?, 36? and 48? widths. Door panels consist of a 44? wide door mounted in a 48? wide panel. Custom clips secure the top of the panels to suspended ceiling grid. Custom camlock fasteners fasten the panels to each other. Hinged corner posts allow for wall transitions ranging from 10° to 90°. Porting options are available to allow for HEPA filtered air discharge and for monitoring differential air pressure between the work area and the public area.

Abstract: A swimming pool consisting of a plurality of panels that withstands water pressure in both a concave and convex configuration to create any freeform shape or size. Each panel consists of an adhered wall of skinning of metal or plastic over expanded polystyrene or expanded urethane foam. The density of the foam is adjusted as necessary to increase the strength of the wall based on static loading of water when swimming pool is assembled as a whole and fully filled with water.

Abstract: Described is a building structure comprising a basic horizontal element, substantially flat and forming a treadable surface, comprising a plurality of stirrup bodies rising from the surface and aligned for identifying at least one habitable room, a plurality of wall elements each comprising a pair of panels parallel to each other and spaced at a predetermined distance so as to form a hollow space between them for receiving a construction material and an upper horizontal element connected to the upper ends of the wall elements for delimiting the top of the habitable room. The hollow space is filled with a volume of clayey soil having a percentage of between 19% and 26% of inert material and delimited by lower connection means anchored to the stirrup bodies and upper connection means anchored to the upper horizontal element; the volume of clayey soil compacted such as to have a compression strength of at least 22 kg/cm2 and a shear strength of at least 4 kg/cm2.

Abstract: A facade/wall system comprises a number of modules. Each module comprises a plurality of insulating panels which have connection means on opposite sides thereof for interengaging the panels together at joints between the panels. Reinforcing elements in the form of top hat sections bridge the joints between adjacent panels. The top hat reinforcement elements used to interconnect adjacent panels in a module ensure that the composite panels act together as monolithic structure that creates a diaphragm while providing a surface to which cladding can be fixed and also providing a cavity between the panels and the cladding attached to the modules. They stiffen the panels and thereby enhance resistance to deflection. The system is cost effective and relatively easy and quick to install.

Abstract: The present disclosure relates to building panels, structures comprising building panels, and methods of manufacturing building panels. In a representative embodiment, a building panel comprises a fiber-reinforced polymer layer and an insulative layer disposed adjacent the fiber-reinforced polymer layer. The building panel can further comprise a rigid planar member disposed adjacent the insulative layer such that the insulative layer is located between the fiber-reinforced polymer layer and the rigid planar member. The building panel can further comprise one or more fiber-reinforced polymer connectors extending through the insulative layer between the fiber-reinforced polymer layer and the rigid planar member.

Abstract: A composite support structure is provided with a plurality of support strands surrounded by a carbon fiber reinforced polymer mesh and surrounded by structural concrete. The support structure provides various advantages in withstanding compressive, tensile, and shear loading.

Abstract: A structural isothermal construction SIP panel comprising a board made of insulating material with two cement-based boards attached to said board made of insulating material per each one of its faces. The insulating board has in each of its sides a “C” type galvanized metal profile, that is embedded in the insulating board and the cement-based boards are attached to the insulating board and are placed overlapped opposite to each other with respect to their longitudinal axis, the overlapped bonding of the cement-based boards with the insulating board creates a protruding area which has a width equal to the width of the galvanized metal profile the bonding between two panels is made using screws. Two manufacturing methods and a bonding method are also provided.

Abstract: A composite panel assembly includes first and second panels. An edge of the first panel is positioned adjacent to an edge of the second panel to define a joint. The edge of the first panel and the edge of the second panel each define a recessed portion. An insert is positioned between the first and second panels at the joint. A portion of the insert is received within respective recessed portions of the first and second panels.

Abstract: A panelized, reusable barrier system allowing for containment of construction areas in hospitals and other clean room environments. Panels are adjustable in height from 92? to 120?. Panels are available in 12?, 24?, 36? and 48? widths. Door panels consist of a 44? wide door mounted in a 48? wide panel. Custom clips secure the top of the panels to suspended ceiling grid. Custom camlock fasteners fasten the panels to each other. Hinged corner posts allow for wall transitions ranging from 10° to 90°. Porting options are available to allow for HEPA filtered air discharge and for monitoring differential air pressure between the work area and the public area.

Abstract: A ventilated structural panel comprising a first sheet, having edges that define a horizontal axis with a first horizontal edge and a second horizontal edge, and vertical axis with a first vertical edge and a second vertical edge, a second sheet being of substantially the same planar dimensions as the first sheet and having edges that define a horizontal axis and vertical axis, with a first horizontal edge and a second horizontal edge and a first vertical edge and a second vertical edge, the first and the second sheet being parallel in plane and matched in at least one of the vertical axis and the horizontal axis, a plurality of spacing structural elements, formed integrally with at least one of the first and the second sheet, fixedly attaching the first sheet to the second sheet, such that the yield strength of the combined panel is greater than the combined individual yield strengths of the first and the second sheet; and the plurality of spacing structural elements being arranged such that a plurality of u

Abstract: Disclosed is a reinforcement structure of a rectangular flat metal plate, which is provided with: a rectangular flat metal plate that is predominantly subjected to in-plane shear, and supports a compressive load as necessary; strip-like rectangular section members that are spliced in parallel with both side edges of the flat plate in the longitudinal direction so as to reinforce the flat plate; and a plurality of square tube-like members that are parallelly arranged for each constant interval in the shorter side direction of the flat plate, and are spliced on one side surface of the flat plate, or are spliced so as to overlap one another across the flat plate between both surfaces of the front and back of the flat plate, wherein the torsional rigidity and torsional strength of the rectangular flat metal plate are increased to ensure a yield shear load, and shear yield strength can be stably maintained even in the transition of shear deformation after the yield.

Abstract: A multi-plenum structural panel comprising a top sheet, a middle sheet, and a bottom sheet, all three sheets being parallel in plane; a first plurality of spacing structural elements, fixedly attaching the top sheet to the middle sheet, and a second plurality of spacing structural elements fixedly attaching the middle sheet to the bottom sheet, such that the yield strength of the combined panel is greater than the combined individual yield strengths of the top, the middle, and the bottom sheets; an upper plenum defined by a spacing between the top sheet and the middle sheet; a lower plenum defined by a spacing between the middle sheet and the bottom sheet; a plurality of unobstructed pathways are created in each plenum for air to move from at least one edge of the panel to at least one of an opposite and an adjacent edge of the panel.

Abstract: A fabricated stone apparatus is provided. A plurality of stone sheets are affixed together to form a fabricated stone structure having a substantially hollow interior portion, wherein each of the plurality of stone sheets is substantially planar, and wherein a side edge of one of the plurality of stone sheets engages with a side edge of another of the plurality of stone sheets. A cover plate is positioned at an end of the fabricated stone structure, wherein the cover plate is connected to a top edge of at least a portion of the plurality of stone sheets, wherein the top edge is positioned substantially perpendicular to at least one of the side edges. At least one fastener is connected between at least two of the plurality of stone sheets, wherein the at least one fastener is positioned remotely from the cover plate.

Abstract: Systems and methods providing a modular building having pre-fabricated panel wall components are easily assembled to form a predetermined structure that provides for mating alignment and securement of the modular panels with each other along their adjoining seams, without requiring additional locking mechanisms for stabilizing the panels.

Abstract: A mounting clip and wall panel assembly is dimensioned for securement along an associated wall structure. The wall panel is formed from a thin-walled material having a substantially uniform thickness. The wall panel has a longitudinally-extending length, and includes first and second longitudinally-extending edges with a mounting wall portion extending lengthwise along the first edge. The mounting clip includes a fastener portion dimensioned for securement along the associated wall structure, and a panel-engaging portion configured to interengage the mounting wall portion of the wall panel. A mounting clip and wall panel kit, and a method of assembly are also included.

Abstract: Thermally responsive walls can be formed of wall panels made from different materials and having staggered conduits with respect to each other when coupled together (e.g., pancaked or layered) to form a wall at one temperature. The staggered conduits in the different wall panels are configured such that they become aligned at a second temperature due to differences in expansion coefficients. The wall panels can be designed using a computing system that processes an algorithm that accounts for various parameters, such as the different thermal expansion coefficients.

Abstract: A building sheet includes a substantially flat board having a front surface, a back surface and a thickness defined therebetween. At least one of the front and back surfaces defines a surface direction. The thickness defines a thickness direction that is substantially perpendicular to the surface direction. Recesses are formed in at least one of the front and back surfaces. The recesses have a maximum dimension in the surface direction of less than 3/8 inch, such that each recess is too small to receive a head of the fastener.

Abstract: Systems and methods providing a modular building having pre-fabricated panel wall components are easily assembled to form a predetermined structure including energy efficient corner modular components that provide for seamless, energy-efficient corners with structural strength.

Abstract: A ventilated structural panel comprising a first sheet, having edges that define a horizontal axis with a first horizontal edge and a second horizontal edge, and vertical axis with a first vertical edge and a second vertical edge, a second sheet being of substantially the same planar dimensions as the first sheet and having edges that define a horizontal axis and vertical axis, with a first horizontal edge and a second horizontal edge and a first vertical edge and a second vertical edge, the first and the second sheet being parallel in plane and matched in at least one of the vertical axis and the horizontal axis, a plurality of spacing structural elements, formed integrally with at least one of the first and the second sheet, fixedly attaching the first sheet to the second sheet, such that the yield strength of the combined panel is greater than the combined individual yield strengths of the first and the second sheet; and the plurality of spacing structural elements being arranged such that a plurality of u

Abstract: Modular plastic structural composites having a web section disposed along a horizontal axis and at least one flange section disposed along a horizontal axis parallel thereto and integrally molded to engage the top or bottom surface of the web section, wherein said composite is formed from a mixture of (A) high density polyolefin and (B) a thermoplastic-coated fiber material, poly-styrene, or a combination thereof. Composites molded in the form of I-Beams and bridges constructed therefrom are also disclosed.

Abstract: The invention relates to a method for producing prefabricated structural parts (5, 14) from a setting plastic compound for erecting buildings, in which the setting compound is filled into a shuttering and left to set into panels, two panels (12, 13) being joined together if necessary by means of reinforcements placed into the shutterings to form a double-walled panel (14). The built-in parts (3, 4, 20, 20?), which serve for the adjustable support of the prefabricated structural parts and/or for joining them to one another, are attached to the edge regions of the panels or double-walled panels, wherein the built-in parts (3, 11, 11?, 20, 20?) have fitting portions (8, 10, 21, 23), which serve as adjusting and joining points with respect to neighbouring panels or double-walled panels.

Abstract: A ventilated structural panel comprising a first sheet, having edges that define a horizontal axis with a first horizontal edge and a second horizontal edge, and vertical axis with a first vertical edge and a second vertical edge, a second sheet being of substantially the same planar dimensions as the first sheet and having edges that define a horizontal axis and vertical axis, with a first horizontal edge and a second horizontal edge and a first vertical edge and a second vertical edge, the first and the second sheet being parallel in plane and matched in at least one of the vertical axis and the horizontal axis, a plurality of spacing structural elements, fixedly attaching the first sheet to the second sheet, such that the yield strength of the combined panel is greater than the combined individual yield strengths of the first and the second sheet; and the plurality of spacing structural elements being arranged such that a plurality of unobstructed pathways are created for air to move from at least one edge

Abstract: This application relates to a light-weight, multi-purpose construction panel. The panel may be formed, for example, from molded plastic. Each panel includes a substantially planar deck on a first side thereof and a second side comprising alternating male and female sleeves arranged in honeycomb-like compartments defined by a plurality of wall elements. A pair of panels may be releasably coupled together with their respective second sides facing inwardly to form a construction assembly. When a pair of panels is coupled together, the male sleeves of one panel matingly fit within the females sleeves of the other panel, and vice versa. Each panel may also include guide tubes which are aligned when the panels are coupled together. A plurality of channels may be formed in the deck on the first side of the panel and spaced-apart apertures may be arranged in the channels in alignment with the guide tubes for insertion of fasteners therein or to allow water drainage through the assembly.