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04a_-_Ancon_Thermal_Windpost_TWP2

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Installation Guide Thermal Windpost TWP2 Ancon Thermal Windpost TWP2 Panels of masonry with openings or very large masonry panels can be difficult to design. Ancon Thermal Windposts are designed to span vertically between floors to provide additional lateral support for panels of masonry. Ancon Thermal Windposts are also designed to limit the transfer of thermal energy through the post and to aid the fitting of insulation around the post to maintain the insulation line. Top & Bottom Connections Top and bottom connections are designed with slotted holes to allow adjustment. Where cast-in channels are used parallel to the slab edge, a serrated pad and washer must be provided. Where expansion bolts are used, round holes or slots parallel to the slab edge will suffice. The top connection should also have a vertical slot or slots (no serrations) to permit movement of the frame. Connections to the structural frame are determined prior to Manufacture/Supply, therefore the following rules should be followed. 1. Only use the fixings supplied, as these are integral to the design. Use all normal/serrated washers provided, and tighten nuts to specified tightening torques (see Installation Guide—Bolts). Dimensional positioning of the windpost should be to either Structural Engineers or Specialist details. Ensure all windposts are installed vertical in both planes, thus allowing the ties to slide in the slots if expansion/ contraction of the frame occurs. Top connection - Section (side) view Top connection - Elevation (front) view If the top connection of the windpost cannot be fixed to the structure upon initial placement of the windpost, it may be necessary to provide temporary support or a prop to hold the top of the windpost in place during construction, until such time that the top connection can be fixed. Insulation Installation Cavity wall insulation should be butted hard up to each side of the post and, where the type of insulation allows, taped to the post using a suitable insulation tape. Designs for partial-fill insulation are based around the outer flange being level with the outside face of the insulation (maximum insulation depth 185mm). The post should be positioned a minimum of 50mm from the outer leaf for both partial and full-fill cavities. In full-fill scenarios it is necessary to carefully cut insulation to fit in front of the post between the flange and the brick, ensuring there are no remaining gaps between adjacent pieces of insulation, or between insulation and post. Bottom connection - Plan view Bottom connection Elevation (Front) view

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Tie Installation and Embedment Wall ties should be fitted in each slot and have a minimum embedment of 50mm into each leaf. Leviat suggest tie lengths which achieve a recommended embedment of between 62.5mm and 75mm, allowing for tolerance on cavity variations Ties for the inner leaf (solid mortar joint) End of block “buttered up” on hem side of post The hem side of the post and the end of the block should be “buttered up” with mortar to pack out the space between the block and the web of the post. On the flat side of the post, the block should be hard up to the web with a thin layer of...

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