diff --git a/.gitattributes b/.gitattributes
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-*.png filter=lfs diff=lfs merge=lfs -text
-*.gif filter=lfs diff=lfs merge=lfs -text
-*.jpg filter=lfs diff=lfs merge=lfs -text
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diff --git a/img/house_detail.jpg b/img/house_detail.jpg
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diff --git a/img/hvac_system.png b/img/hvac_system.png
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diff --git a/img/pipe_vs_duct.png b/img/pipe_vs_duct.png
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