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Building Science Resources

Home Performance Learning Center

Practical answers to real homeowner questions about insulation, air sealing, and building performance — from a building-science perspective.

Most insulation and comfort problems are more complicated than they look. These articles are written to help Saratoga County and Capital Region homeowners understand what's actually happening in their homes — so they can make informed decisions about what to fix and how.

Comfort & Temperature

Why rooms feel cold, hot, or drafty — and what actually causes it.

Insulation

How insulation works, what types exist, and when to upgrade.

Air Sealing

Air leakage, drafts, and why sealing matters as much as insulation.

Diagnostics & Testing

Blower door tests, thermal imaging, and what they actually tell you.

Featured Articles

Comfort & Temperature

Why Is My Upstairs So Hot in Summer?

Hot second floors are one of the most common complaints from homeowners in Saratoga County. The cause is almost never just "not enough insulation." Here's what's actually going on.

5 min readRead
Air Sealing

Air Sealing vs. Insulation: What's the Difference and Which Do You Need?

Many homeowners add insulation hoping to fix drafts and comfort problems — and are disappointed when it doesn't work. Here's why air sealing and insulation are different problems that require different solutions.

6 min readRead
Diagnostics & Testing

What Does a Blower Door Test Actually Tell You?

A blower door test measures how airtight your home is — but the number alone doesn't tell the whole story. Here's what the test measures, what it doesn't measure, and how it's used in a real diagnostic evaluation.

5 min readRead

More Articles

Comfort & Temperature

What Causes Ice Dams — and How Do You Prevent Them?

5 min readRead
Insulation

Should Old Insulation Be Removed Before Adding New?

4 min readRead
Insulation

Can You Insulate Existing Walls Without Tearing Them Apart?

5 min readRead

Have a Specific Question About Your Home?

Every house is different. If you're not sure what's causing a comfort or efficiency problem, the best starting point is a conversation — or a professional evaluation.