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If you would like to provide a better transcription you can submit one at: http://www.mountvernon.org/video/send-us-your-transcription/ time reinhard deputy director for architecture here at George Washington's Mount Vernon and we're standing here in front of the mansion on the east long george washington thomas really one of the most iconic and well recognized buildings in the world but in some ways it was a rather a typical Gentry home for eighteen central Virginia whereas George Washington's peers in his class were building large brick homes Washington chose to build a large frame home built entirely of wood except for the chimneys and foundation and the reason why you probably did this was that he inherited the very core of Mount Vernon from his brother who inherited it from his father and his father Augusta in washington who built the original center section the house in 1735 Lawrence inherited that house and expanded it and then when George Washington inherited that house from a step brother Lawrence he went ahead and increase the size of the house and the 17 fifties and then went on to build it even larger in the 17 seventies so it's probably his desire to preserve the very core of his family's dwelling that inspired him to keep it a frame house and not move into creating a large brick house like its peers as you mentioned earlier Mount Vernon has actually made of wood but washington chose protect the appearance of stone and he he accomplished this by using a technique known as rustic Asian the wooden siding boards are cut to appear that they are stone blocks from a distance is very convincing up close he carried off an illusion even further by using a technique known as sand casting while the paint on the wooden boards are still wet sand is thrown at it sticks to it so that when you're up close until you're actually touching it really has the appearance that the house is made out of stone this is technically probably was exposed to on a trip to New England in the mid 17th fifties because when he comes back trip he enlarges Mount Vernon for the first time and he uses this technique of replication on the house we're standing on the circle on the west side of the mansion the matches executed in the Georgian style of architecture which was the prevalent architectural style of the 18th century in america the Georgian architecture emphasizes symmetry on the exterior of a building and when Washington did his design drawing for the last expansion campaign that he undertook in the mid 17th seventies he drew Mount Vernon that was completely symmetrical but if you look over my shoulder you'll see that we have anything but a symmetrical Mount Vernon the center of the front door is not in alignment with the pediment nor with the cupola which has shifted several feet to the south one of the reasons why in practice Mount Vernon didn't turn out to meet Washington's desire was that the location of the stair necessitated the shift of the door to the north but Washington did value symmetry to such a large extent that he went to the time and labor and expense to create two false windows in the northern Bay which is where the north the new room is the new room is a one and a half storey room on the interior fitted into a two-story section of the house so those windows are actually open onto dead space between them third floor and the ceiling of the new room but they have working sash with glass and their boarded-up from the inside so this is a real practical expression of a desire to get all the characteristics which were key to the architectural style that Washington executed the match the fact that Mount Vernon is a wood-frame structure is not the only thing that makes it unusual for a Virginia Gentry house the house incorporates several features that in themselves are unusual or even a unique and it's it's important to remember that Washington didn't hire an architect to design his house he himself was the architect he worked directly with the builders and the craftsmen who executed it he picked the designs and he designed all of the iconic features of the house the cupola off the center of the roof of the house the long Piazza which unifies the front of the house and the pediment a lot on the west front of the house these are all things that Washington himself incorporated into his home but just as he was a man of vision he was always a matter of practicality as well so each of these feature serves a very practical purpose in the overall functioning of the house the cupola serves as a ventilator when the windows of the cupola were opened and the wood the hot air which would rise up through the staircase of the house would exit and cooler air would be pulled in in through the windows of the lower floors the Piazza of course crude gave shape to the east side of the house but it also gave a great place to enjoy the potomac Vista which Washington love so much the pediment on the west front serves as a dormer and creates a large storage closet up on the third floor so as always with everything Washington did well thought out very practical but also visionary