Home Improvement--General/new house


I'm planning on building a new home.
One of the questions that came up  was insulation.
My current house uses batt insulation. So it would always be hot in the summer and freezing in the winter on the 3rd floor.
I know that foam insulation will solve that problem, but my builder suggested flash and batt method.
Will flash and batt solve the problem I'm having? or would there be no change at all?

Also in my current house, you can hear everything, people walking around, talking.
I wanted sound proof flooring, the builder told me it would be sound proof since we are doing radiant flooring because it would be installed on a concrete slab.
when doing radiant flooring does the concrete slab only apply to basement floor or on all floors?
I feel like the builder is just trying to save on cost by telling me what I want to hear.

Flash and batt is another method of insulating a building.
From your problem of not having heating or cooling on the third floor the issue does not sound like anything a variation in insulation would cure.

The problem you describe is common to multistory homes.
Warm air rises cool air falls equaling a warm upstairs in the summer and cold in the winter.
That is happening inside the insulation envelope.

I would look at the air distribution system.

Concrete can be more sound absorbing than wood but it is necessary to look at the entire floor plate assembly. Some radiant systems are installed without concrete.

If you are doing such substantive work on our home why haven't you hired a construction expert or architect to be your advocate and help you work out your design and resolve these questions? If you do not know what the builder is building and why you are in a precarious position.

Home Improvement--General

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Thomas Buford


Licensed Architect in Virginia since 1984.
New Homes, Additions, Alterations, Outbuildings, Failure Forensics;
Small Construction Projects; Remediation and Repair



Architectural design, planning, construction and repair.
Schematic Design
objectives statement
space planning
feasibility study
structural, mechanical, plumbing
and electrical system integration
Permit Drawings
Construction Drawings
Contract Documents
Construction Administration
construction management
pre-qualification of bidders
general and/or sub contracting
construction progress and
construction contract review and interpretation
pay request certification
Construction failure diagnostics
water intrusion
structural failures, ...

Due to life safety concerns regarding some aspects of construction I may not be able to help with all questions.
I do not answer structural specification questions without a site visit.

Arlington Journal

5 year Bachelor of Architecture from
Virginia Polytechnic Institute and State University (VPI-SU)

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