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Home My WebLink AboutFile Documents.533 W Hallam St.0031-2022-BCHO (14)From:William Lewis To:Sarah Yoon Cc:Brian Gary; Stefan Roberts; Paul Bonin; Natalie Feinberg Lopez; Denis Murray Subject:RE: Site Visit: 533 W. Hallam Date:Wednesday, December 22, 2021 3:24:10 PM Attachments:image001.png image002.png image003.png image005.png image006.png image011.png image017.png image018.png image024.png image025.png image026.png image028.png image029.png 2017.07.11 WrapShield IT Specification (3).docx 2017.07.11 WrapShield IT Specification.pdf 2020.08.28 WrapShield IT SDS.pdf VS_PDS_WrapShield_IT_080921 (1).pdf VS_PDS_WrapShield_IT_080921.pdf WrapShieldIT_Install_Instruct_092519.pdf A803 HCI Historic Wall Assembly Changes.pdf Sarah, See attached. I heard today that there are some more decisions being worked on between HCI and HPC on the insulation type at the historic house walls. So, we reflected that recent discussion in the details. 1. The discussed changes to the wall assembly are shown on the attached sheet A803 2. Drainage was discussed with the waterproofing consultant. Given the limited area of walls, construction above and below these walls, and the use of the Vaprosheild Wrapshield IT, he does not have any concerns about drainage. The siding configuration will allow the water to escape easily. 3. See attached for the cut sheet information on the Vaproshield Wrapshield IT system, and also check out the website. https://vaproshield.com/products/wall-wrb-ab/wrapshield there are even some videos on the site discussing how the product works. It is a fairly standard product for this industry. William Lewis | Project Manager 605 East Main Street Aspen, CO 81611 O 970-925-4755 C 970-456-7930 www.billposs.com 05/17/2022 Some people who received this message don't often get email from sarah.yoon@aspen.gov. Learn why this is important Sent: Friday, December 3, 2021 1:11 PM To: Paul Bonin <pbonin@hansenconst.com>; Stefan Roberts <sroberts@hansenconst.com>; Brian Gary <bgary@hansenconst.com> Cc: Natalie Feinberg Lopez <natalie.feinberglopez@aspen.gov>; Denis Murray <denis.murray@aspen.gov> Subject: RE: Site Visit: 533 W. Hallam Hello Paul, Stefan and Brian, Following our discussion with the Building Department, I have summarized the comments that will need to be addressed: 1. The siding/wall assembly detail: Please update the drawing to accurately reflect the sistered framing we saw on-site and how the proposed plywood will be attached to the studs for shear strength. The historic studs appeared to be sistered on both sides in most areas but that is not what is shown in the drawing. 2. Drainage: How will drainage be addressed in the proposed assembly? Will a drainage plane be needed for the performance of this wall? If so, what would this look like and what would be the minimum tolerance needed (dimensions)? Staff would like to assess this detail since it may change how far the exterior features will be pushed outward. 3. Vapor Barrier: Please provide a description on how vapor will travel through the system. We need to ensure that the final system allows for the vapor to travel in one direction and will ultimately dry out. Provide information including what material would be used and its level of permeability. Thank you, -Sarah- Sarah Yoon (She/Her/Hers) Historic Preservation Planner | Community Development (O): 970.920.5144 | (C): 970.319.0720 www.cityofaspen.com My typical in-office hours are Tuesday-Thursday, 9 a.m.-5 p.m. I work remotely Monday & Friday, 9 a.m.-5 p.m. Our Values: Stewardship | Partnership | Service | Innovation 05/17/2022 www.cityofaspen.com www.aspencommunityvoice.com www.aspenvictorian.com www.aspenmod.com Notice and Disclaimer: This message is intended only for the individual or entity to which it is addressed and may contain information that is confidential and exempt from disclosure pursuant to applicable law. If you are not the intended recipient, please reply to the sender that you have received the message in error and then delete it. Further, the information or opinions contained in this email are advisory in nature only and are not binding on the City of Aspen. If applicable, the information and opinions contained in the email are based on current zoning, which is subject to change in the future, and upon factual representations that may or may not be accurate. The opinions and information contained herein do not create a legal or vested right or any claim of detrimental reliance. From: Paul Bonin <pbonin@hansenconst.com> Sent: Friday, December 3, 2021 8:06 AM To: Sarah Yoon <sarah.yoon@aspen.gov>; Stefan Roberts <sroberts@hansenconst.com>; Brian Gary <bgary@hansenconst.com> Cc: Natalie Feinberg Lopez <natalie.feinberglopez@aspen.gov> Subject: RE: Site Visit: 533 W. Hallam Sarah and Natalie We have no issue with using batt insulation or rock wool to insulate the remodeled historic cabin. With approval from HPC and the City of Aspen to install a vapor barrier around the historic structure, we will mitigate concerns of moisture infiltration and improve the energy efficiency of this portion of the house. This will be a big improvement. Please let us know of you have any other questions. HCI is available to join you at your meeting with the Building Department to help explain how we would approach this work. Thank you for your consideration in this matter Paul Bonin Hansen Construction, Inc. 310 AABC, Aspen, CO 81611 P.O. Box 10493, Aspen, CO 81612 Office: 970-920-1558 Mobile: 970-985-3449 pbonin@hansenconst.com www.hansenconst.com From: Sarah Yoon <sarah.yoon@aspen.gov> Sent: Thursday, December 2, 2021 6:01 PM To: Stefan Roberts <sroberts@hansenconst.com>; Paul Bonin <pbonin@hansenconst.com>; Brian Gary <bgary@hansenconst.com> Cc: Natalie Feinberg Lopez <natalie.feinberglopez@aspen.gov> Subject: RE: Site Visit: 533 W. Hallam 05/17/2022 Some people who received this message don't often get email from sarah.yoon@aspen.gov. Learn why this is important Here was the wall detail that was approved for the permit where batt insulation was specified. We walls of the historic resource (re-built) that had no historic framing was permitted to use spray foam insulation. -Sarah- 05/17/2022 From: Sarah Yoon Sent: Thursday, December 2, 2021 5:19 PM To: Stefan Roberts <sroberts@hansenconst.com>; Paul Bonin <pbonin@hansenconst.com>; Brian Gary <bgary@hansenconst.com> Cc: Natalie Feinberg Lopez <natalie.feinberglopez@aspen.gov> Subject: RE: Site Visit: 533 W. Hallam Hello Stefan and Paul, We received your email with the attachments and description about our site visit and will be discussing the details with our Building Department tomorrow to see if they have any comments or questions to add. One thing we notice was that there was no mention of insulation. As we discussed on site, we are moving away from spray foam insulation in areas where we have historic studs and framing and recommending the use of rock wool insulation which is the current standard for historic resources on a national level. This would be our preference for this property. We will reach out again tomorrow after our discussion with the Building Department. Thank you, -Sarah- 05/17/2022 Sarah Yoon (She/Her/Hers) Historic Preservation Planner | Community Development (O): 970.920.5144 | (C): 970.319.0720 www.cityofaspen.com My typical in-office hours are Tuesday-Thursday, 9 a.m.-5 p.m. I work remotely Monday & Friday, 9 a.m.-5 p.m. Our Values: Stewardship | Partnership | Service | Innovation www.cityofaspen.com www.aspencommunityvoice.com www.aspenvictorian.com www.aspenmod.com Notice and Disclaimer: This message is intended only for the individual or entity to which it is addressed and may contain information that is confidential and exempt from disclosure pursuant to applicable law. If you are not the intended recipient, please reply to the sender that you have received the message in error and then delete it. Further, the information or opinions contained in this email are advisory in nature only and are not binding on the City of Aspen. If applicable, the information and opinions contained in the email are based on current zoning, which is subject to change in the future, and upon factual representations that may or may not be accurate. The opinions and information contained herein do not create a legal or vested right or any claim of detrimental reliance. From: Stefan Roberts <sroberts@hansenconst.com> Sent: Friday, November 19, 2021 1:26 PM To: Sarah Yoon <sarah.yoon@cityofaspen.com>; Paul Bonin <pbonin@hansenconst.com> Cc: Natalie Feinberg Lopez <natalie.feinberglopez@cityofaspen.com>; Brian Gary <bgary@hansenconst.com> Subject: RE: Site Visit: 533 W. Hallam Hi Natalie and Sarah, thank you again for coming to our site today to look at the vapor barrier issue at 533 W Hallam. We did not mention the other trim that would also be required to be removed in error. Please see below our proposed sequence of deconstruction and reinstating of siding and trim. Also, see attached photos of trim that we would also propose to remove and reinstate. I have highlighted in green. Note all trim on the vertical face of walls is included in this request. Additionally, I have included a detail showing how we propose filling in between the studs flush to the exterior side of the original studs. Procedure of work; Label each piece of siding in a logical sequence. This is to be on the face 05/17/2022 Some people who received this message don't often get email from sarah.yoon@cityofaspen.com. Learn why thisis important of the siding with pencil. Photograph all labeling while siding is still in place. Document the elevation of each piece in relation to a set bench mark on the property. Carefully remove each piece and store on site under cover. Fill in between each stud bay with ¾” plywood with the outside face of the plywood being flush with the outside of the historic studs. This will enable the siding to be reinstated to its original position. Wrap the house with the vapor barrier. Reinstate the original siding to the documented elevations previously noted. We understand this siding and trim approval request only covers the removal and reinstating of siding and trim. A separate approval request for the insulation assembly will follow within the next few days. We will NOT insulate without this second approval. Please advise if we can proceed with the siding and trim removal as detailed above and in the attached documents. Regards, Stefan Roberts Hansen Construction, Inc. 310 AABC- Aspen, CO 81611 P.O. Box 10493 - Aspen, CO 81612 C-(970)989-2494 sroberts@hansenconst.com www.hansenconst.com From: Sarah Yoon <sarah.yoon@cityofaspen.com> Sent: Thursday, November 18, 2021 16:09 To: Paul Bonin <pbonin@hansenconst.com> Cc: Natalie Feinberg Lopez <natalie.feinberglopez@cityofaspen.com>; Brian Gary <bgary@hansenconst.com>; Stefan Roberts <sroberts@hansenconst.com> Subject: RE: Site Visit: 533 W. Hallam Great, look forward to seeing Brian and Stefan tomorrow. -Sarah- 05/17/2022 Sarah Yoon Community Development Department Historic Preservation Planner 130 S. Galena St. Aspen, CO 81611 Office: 970.920.5144 Cell: 970.319.0720 www.cityofaspen.com www.aspencommunityvoice.com www.aspenvictorian.com www.aspenmod.com Notice and Disclaimer: This message is intended only for the individual or entity to which it is addressed and may contain information that is confidential and exempt from disclosure pursuant to applicable law. If you are not the intended recipient, please reply to the sender that you have received the message in error and then delete it. Further, the information or opinions contained in this email are advisory in nature only and are not binding on the City of Aspen. If applicable, the information and opinions contained in the email are based on current zoning, which is subject to change in the future, and upon factual representations that may or may not be accurate. The opinions and information contained herein do not create a legal or vested right or any claim of detrimental reliance. From: Paul Bonin <pbonin@hansenconst.com> Sent: Thursday, November 18, 2021 4:00 PM To: Sarah Yoon <sarah.yoon@cityofaspen.com> Cc: Natalie Feinberg Lopez <natalie.feinberglopez@cityofaspen.com>; Brian Gary <bgary@hansenconst.com>; Stefan Roberts <sroberts@hansenconst.com> Subject: RE: Site Visit: 533 W. Hallam Sarah We can make that work. Thank you for arranging this meeting so quickly. I cannot meet at that time, but Brian Gary and Stefan Roberts can… and they are able to review our questions with you. Thank you Paul BoninHansen Construction, Inc. 310 AABC, Aspen, CO 81611 P.O. Box 10493, Aspen, CO 81612 Office: 970-920-1558 Mobile: 970-985-3449 pbonin@hansenconst.com www.hansenconst.com From: Sarah Yoon <sarah.yoon@cityofaspen.com> Sent: Thursday, November 18, 2021 3:55 PM To: Paul Bonin <pbonin@hansenconst.com> 05/17/2022 Cc: Natalie Feinberg Lopez <natalie.feinberglopez@cityofaspen.com> Subject: Site Visit: 533 W. Hallam Hello Paul, Natalie, our new Historic Preservation Officer, and I will be able to meet you on site tomorrow at 11 am. Please confirm that this time will work for you. Thank you, -Sarah- Sarah Yoon Community Development Department Historic Preservation Planner 130 S. Galena St. Aspen, CO 81611 Office: 970.920.5144 Cell: 970.319.0720 www.cityofaspen.com www.aspencommunityvoice.com www.aspenvictorian.com www.aspenmod.com Notice and Disclaimer: This message is intended only for the individual or entity to which it is addressed and may contain information that is confidential and exempt from disclosure pursuant to applicable law. If you are not the intended recipient, please reply to the sender that you have received the message in error and then delete it. Further, the information or opinions contained in this email are advisory in nature only and are not binding on the City of Aspen. If applicable, the information and opinions contained in the email are based on current zoning, which is subject to change in the future, and upon factual representations that may or may not be accurate. The opinions and information contained herein do not create a legal or vested right or any claim of detrimental reliance. 05/17/2022