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So Bradley from Ferndale, Michigan, which is just north of Detroit, writes,

gentlemen, I wanted to pick your brain regarding the installation of the zip system and a partial remodel.

We're getting ready to begin a renovation to a 1951 bungalow.

The scope is generally interior, but we will be removing the back half of the roof to create a full-width dormer on the second floor to add a bathroom.

The obvious choice is to clad the new dormer wall and roof and zip system and then install shingles and siding.

However, I have some concerns that there would be negative ramifications to having only a portion of the structure so well sealed and much better insulated.

I've not done expletory demo, but I'm guessing the interior walls

are all two-by-four construction with little to no insulation. They likely have slat sheathing,

maybe a conventional house wrap, and vinyl siding. The interior walls are plaster on lath. The roof is

constructed with asphalt shingles on OSB again minimal insulation

would you take a more conventional approach to match or proceed with zip system no

...