This video documents the final day of framing and preparation work on the "Modest House" build, focusing on a punch list of remaining tasks before the drywall phase. The crew installs a fire-rated door, sets pocket doors, and meticulously air-seals HVAC ductwork to maintain the home's air control layer. A significant portion of the video is dedicated to installing Rockwool "Safe and Sound" insulation in interior walls to provide sound dampening between bedrooms and common areas. An unexpected challenge arises when the planned mechanical room proves too small for the HVAC air handler, forcing the team to re-engineer and construct a new, taller, air-sealed "HVAC closet" by extending into the garage attic space. This on-the-fly rework involves complex framing and sheathing to prepare the space for the mechanical installers.
Finishing the Modest House: Punch List, Soundproofing, and Rework
0:00 Final Punch List: The crew outlines the day's final tasks: installing a fire door, preparing the mechanical room for HVAC equipment, and installing Rockwool Safe & Sound insulation for sound control.
1:09 Air Sealing Details: The team focuses on critical air control details, using specialized tape (Resan) to seal around HVAC supply and return boxes, ensuring the ductwork is integrated into the home's sealed envelope.
7:20 Soundproofing with Rockwool: The crew installs Rockwool Safe & Sound, a dense mineral wool product, in interior walls. The goal is to dampen sound transmission between bedrooms and common areas, an inexpensive upgrade for improved comfort.
10:33 Dual Benefits of Insulation: In addition to sound dampening, they discuss how the mineral wool insulation also acts as a fire retardant, potentially slowing the spread of fire through a wall cavity and giving occupants more time to escape.
13:06 A Major HVAC Problem: A significant issue is identified on-site: the planned mechanical room is too small to accommodate the HVAC air handler and its required ductwork.
13:26 The Solution: On-the-Fly Rework: To solve the space issue, the crew decides to build a new, taller mechanical room by framing into the garage's attic space.
14:44 Complex Reframing: This last-minute change requires significant rework, including cutting out existing framing, a non-structural header, and even a truss web to create the necessary space for the new "HVAC closet."
16:52 Creating a Sealed HVAC Closet: The newly framed space is sheathed with plywood for mounting hardware and meticulously air-sealed using a membrane (Myrax) to ensure it becomes part of the home's conditioned space, which is crucial for efficiency.
19:39 Ready for Drywall: With the insulation and the custom HVAC closet complete, the project is ready to be handed over to the drywallers. The video concludes by noting the noticeable sound-deadening effect of the newly installed Rockwool.