How do I repair this mudsill joint?

Alan B| Posted inEnergy Efficiency and DurabilityonJanuary 6, 2016 04:10am

It looks like there is some kind of parging that is now crumbling, i could break it apart with a screwdriver pretty easily.
TIA

Answer

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Martin Holladay|Jan 06, 2016 07:32am|#1

Alan,
If you can "break it apart with a screwdriver pretty easily," then you should break it apart with a screwdriver.

Then vacuum up the chips and dust.

Then seal the crack. If the crack is wide, seal it with canned spray foam. If the crack is narrow, seal it with a high-quality caulk.
Alan B|Jan 06, 2016 05:08pm|#2

Thanks Martin, i have been resisting the urge to harm it and have been trying to preserve it.
Most if it appears to be seal-able with a thick bead of caulk, is there a particular type to be used here?