The invention relates to a roof window comprising a frame and a laminated vacuum insulated glass (laminated VIG) unit fixed in said frame, the laminated VIG unit comprising: a first glass sheet and a second glass sheet, wherein the first and second glass sheets are separated by an evacuated gap, and wherein a plurality of support structures are distributed inside the evacuated gap between the first and second glass sheets, a lamination layer arranged between the first glass sheet and a further sheet, said lamination layer is bonding to an outer major surface of the first glass sheet facing the evacuated gap, wherein the lamination layer comprises at least a first layer and a second layer of a polymer material, wherein, when the roof window is exposed to impacts; the fluctuation in decibel (dB) over a range of 1000 Hz in the interval from 20 Hz to 13000 Hz will not exceed 10 dB.

Various embodiments of the disclosure are directed towards fenestration assemblies having a first pane; a second pane, the second pane spaced from the first pane; and a third pane configured in spaced relation between the first pane and the second pane, where the third pane is a laminate. In one aspect, the total thickness of the third pane laminate is not greater than 3 mm. In one aspect, the laminate comprises a first glass layer not greater than 1 mm thick and a second glass layer not greater than 1 mm thick, and an interlayer between first and second layers.

There is provided laminated glass superior in sound insulating property and visibility. The laminated glass includes: a pair of glass plates; and an intermediate film sandwiched between the pair of glass plates. The intermediate film has a transmitting region and a shielding region. The transmitting region has a skin layer having a glass transition point of 15° C. or higher and a core layer having a glass transition point of lower than 15° C. alternately laminated. The number of the core layers is two or more in the transmitting region. The shielding region is provided at peripheries of the pair of glass plates and has a visible light transmittance of 3% or less.

The present invention provides an interlayer film for laminated glass which has excellent sound insulating properties even when the thickness is reduced, and also hardly causes optical unevenness.

An interlayer film for laminated glass includes at least one layer A containing a thermoplastic elastomer, wherein the shear storage modulus of the layer A at 70° C. as measured by performing a dynamic viscoelasticity test at a frequency of 1,000 Hz in accordance with ASTM D4065-06 is 1 MPa or more, and a layer having a higher shear storage modulus than the layer A is provided on at least one surface of the layer A, and at least one surface of the interlayer film for laminated glass is in a state of having been shaped.

The invention relates to a method for selecting a viscoelastic plastic interlayer including two outer layers and a central layer that can be incorporated between two glass sheets of a glazing unit, the method includes providing first and second components that constitute respectively the central layer and the outer layers, measuring the shear modulus G′ of the first and second components, selecting the material of the second component only if G′≧3×10.sup.7 Pa at 20° C. and between 100 Hz and 240 Hz, and setting the thickness h of the first component so that h is between 0.31 mm and 1.20 mm and so that g=G′/h is between 5.58×10.sup.8 Pa/m and 2.37×10.sup.9 Pa/m at 20° C. and between 100 Hz and 240 Hz.

A method for manufacturing a multi-layer stack includes bonding a transparent plate to an outer surface of at least one of a first glass panel or a second glass panel of a glass panel unit with an intermediate film interposed therebetween. The glass panel unit includes: the first glass panel; the second glass panel; and an evacuated space provided between the first glass panel and the second glass panel. A plurality of spacers are provided in the evacuated space between the first glass panel and the second glass panel. A pressure applied for bonding the glass panel unit and the transparent plate together is less than a compressive strength of the plurality of spacers.

Embodiments include fenestration units with active sound canceling properties, retrofit units with active sound canceling properties and related methods. In an embodiment a fenestration unit with active sound canceling properties can include an glazing unit including an exterior transparent pane, an interior transparent pane, and an internal space disposed between the exterior and interior transparent panes. The fenestration unit can include an active noise cancellation system including an exterior module including a sound input device and a signal emitter. An interior module can include a signal receiver to receive the signal from the signal emitter, and a vibration generator configured to vibrate the interior transparent pane. A sound cancellation control module can control the vibration generator to vibrate the interior transparent pane and generate pressure waves causing destructive interference with a portion of the sound waves received by the sound input device. Other embodiments are also included herein.

A sound interlayer includes a first layer made from a first material and a second layer, wherein the second layer comprises a damping system including at least one patch made from a second material different from the first material.

The present invention relates to a double-pane window insulating system. The double-pane window insulating system according to the present invention comprises: a double-pane window having a chamber formed between a pair of windowpanes, a bead inlet via which a plurality of beads and air flow into the chamber, a bead outlet via which the plurality of beads and the air accommodated in the chamber are discharged, and an air entrance/exit opening via which air enters and exits the chamber; and a bead discharge means for discharging the plurality of beads, accommodated in the chamber, to the bead outlet.

A mosaic-style design aerogel window system having two panes of translucent material assembled parallel to each other in a frame to form a window panel is disclosed. A variety of aerogel monoliths of various colors are assembled in a layer between the two panes of translucent material such that edges of adjacent aerogel monoliths mate with each other. Aerogel monoliths are prepared from a plurality of cut or molded shapes of aerogel monoliths, each having at least one dimension of ¼ inch or greater. At least some of the plurality of aerogel monoliths have dyes or salts incorporated into a precursor recipe to impart color to the colored aerogel monoliths.