r/buildingscience

44k members
r/buildingscience is a subreddit with 44k members. The community frequently discusses insulation, question, ventilation, attic, and building_science, and the most common flair used is question and will it fail?.
Collection of resources on building science. Topics can range from insulation strategies, mechanical designs, water waste reduction strategies, control layer strategies, example builds.

Popular Topics in r/buildingscience

#1

Insulation

56 posts
#2

Question

20 posts
#3

Ventilation

17 posts
#4

Attic

14 posts
#5

Building_science

13 posts
#6

Vapor Barrier

12 posts
#7

Roof

12 posts
#8

Wall

10 posts
#9

Moisture

9 posts
#10

Energy

7 posts

Flair Used in r/buildingscience

#1
Question
: "duct sizing calculations in the field, how do experienced techs actually handle this without a manual"
21 posts
#2
Will it fail?
: "Roof advice - climate zone 5a"
1 post

Member Growth in r/buildingscience

Yearly
+12k members(37.3%)

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About

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This page gives a focused view of r/buildingscience, including current member size, discussion patterns, product reviews, and related communities to explore.

This data is synced periodically so insights stay current and useful for ongoing research.

Last updated: October 24, 2026