Laserfiche WebLink
<br /> K I L P a g e 3 <br />ARCHITECTURE <br />P L A N N I N G <br />www.kilarchitecture.com <br /> <br />1 1 2 6 L I N C O L N W A Y E A S T S O U T H B E N D I N 4 6 6 0 1 ( 5 7 4 ) 2 8 8 . 2 6 5 4 V O I C E 2 8 9 . 2 4 2 0 F A X <br /> At the roof we recommend the following temporary measures for getting the building in the <br />dry to allow for further assessment of the roof structure and to curb the current rate of infiltration. <br />These recommendations are based on discussions with roofers experienced with membrane roofing <br />who have reviewed the drone footage and are familiar with the existing conditions and have visited <br />the building with the Architect. The overall strategy is to line, with a new membrane, the areas where <br />runoff will be channeled to the low points of the roof at the existing drain locations, and to retrofit <br />existing drains and downspouts to manage the runoff. See Temporary Roof Membrane Diagram <br />below. Per the following diagram, the areas at the north and south ends of section three and the <br />south side of section 1 are to receive a new EPDM membrane to loosely overlay the existing <br />membrane and attached at the existing roof using se am tape, while the other side will be draped <br />over the parapet and mechanically fastened with a term bar into the masonry wall beyond. This new <br />membrane will then need to have a cut out to allow water to be directed to the exterior scuppers and <br />downspouts. The new membrane will need to be ballasted at the low points to ensure it does not <br />move or pull away from the existing membrane. The external downspouts are recommended to be <br />scoped and confirmed clearly where they go underground prior to diverting the roof runoff through <br />them. At the south and west sides of section one where the terracotta coping exists, the temporary <br />membrane should be adhered to the existing term bar and sealed watertight, with all holes in the <br />terracotta to be sealed with sealant to keep water out of the terracotta blocks until they can be <br />restored appropriately. These areas are recommended to also be ballasted to reduce the likely hood <br />of the existing membrane pulling away from the terracotta. Section four is recommended to simply <br />be ballasted to keep the membrane from pulling away further. At the north side of section 1 where <br />there is a hole in the roof deck, we recommend first installing a temporary wood roof deck at the <br />area where the existing gypsum deck has collapsed and then installing a section of EPDM <br />membrane directly over the existing membrane hole. Following this we then recommend a second <br />layer of EPDM to match the detail used in the other areas, and to have ballast added. At the south <br />of section 2, the membrane is ok, and still fastened securely, no alteration is recommended. The <br />north of section 2 has begun to pull at the parapet cap and term bar significantly, so we recommend <br />slicing along the length of the parapet to relieve tension (otherwise t his pull will start to tear the <br />membrane away from the parapet as it has done on the south at section 3). Once sliced, then apply <br />a new membrane as done at section 3 with ballast added. Additionally, we recommend the three <br />large ventilators be removed and a metal lid be formed to keep the elements out. The current <br />ventilator tops have deteriorated to a point beyond repair with large holes in the tops. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> TEMPORARY ROOF MEMBRANE DIAGRAM ROOF DIVISION DIAGRAM