BRAGB Open House | Net Zero Chainsaw Retrofit

Tuesday, April 14, 2026 (10:00 AM - 1:00 PM) (EDT)

Description

BRAGB Open House | Net Zero Chainsaw Retrofit

Join us for a behind-the-scenes look at a Net Zero chainsaw retrofit that applies Passive House principles to an existing home. This project features high-performance mechanical systems, a robust control-layer strategy using SIGA and VaproShield, and advanced thermal solutions from TimberHP....all working together to deliver airtightness, durability, and long-term comfort.

This open house is ideal for architects, builders, engineers, carpenters, and energy professionals interested in deep energy retrofits and real-world high-performance challenges and strategies. Top Notch Contracting is opening its doors to share how they approach green building while remaining practical and budget-conscious for designers and clients alike.

A group of 5–6 distributors involved in the project are expected to attend, bringing displays, literature, and product handouts to showcase the systems used in the renovation. We are also working to include local vocational carpentry students to provide exposure to the project and its building approaches.

Project Team

  • Architect: Sam Kachmar Design
  • Structural Engineer: M Sullivan Engineering
  • Civil Engineer: Engineering Solutions Group
  • Surveyor: Vineyard Engineering
  • Builder: Top Notch Contracting
  • Energy Rater: A9 Green
  • Thermal Systems: TimberHP + The Green Cocoon Inc.
  • Lumber: Timberline Enterprises 
  • Control Layers: SIGA & VaproShield
  • Solar: Boston Solar Co.


Hosted by BRAGB member and project lead Top Notch Contracting.


Want a $250 sponsorship and you are not a competitor of Tour participants? Contact Chul Kim at 791-890 2434 or email ckim@bragb.org

Pricing

$25 member rate. 

$40 non-member rate. Join BRAGB. Support your local home builder trade association.

Top Notch Chainsaw Retrofit Tour
17 Cottage St.
Melrose, MA 02176 United States

Quiet residential Melrose neighborhood. On street parking only.

Event Contact
Scott Palmer
(781) 890-2439
Send Email
Tuesday, April 14, 2026 (10:00 AM - 1:00 PM) (EDT)

10:00 am to 2:00 pm The Tour is Open
12:00 pm - Lunch: Sandwiches, Sides, Drinks, etc.
1:00 pm - End of Tour

Categories
Member Hosted Event
Tour
Housing Industry Event
General BRAGB Event
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