With the ceiling cleaned up and the new windows installed, it’s time to work on the walls.   The basement has had a history of dampness, and the problem spots became rather apparent once the wainscot was removed.  The lower part of the foundation wall is of poured concrete while the upper part was laid in concrete block.  The lower portion had been created in several successive pours.  One of those pours was comprised of concrete of a lesser quality than the surrounding layers – it was in this layer that the most seepage was occurring.  The problem areas were plugged with a hydraulic cement product (Damtite):

 

Damtite sets up fast - you have to move quickly!

Damtite sets up fast – you have to move quickly!

 

Next, remaining efflorescence was removed with muriatic acid and when dry, the problem areas were covered with two coats of a waterproofing paint (Drylok):

 

Waterproofing complete.

Interior waterproofing complete.

 

Once dry, the walls begin to receive a layer of rigid foam insulation:

 

The insulation was notched to fit around ceiling joists. The pockets had already been filled with fiberglass insulation.

The rigid insulation was notched to fit around ceiling joists. The pockets had already been filled with fiberglass insulation.

 

Once cut and fit, the rigid insulation was glued to the walls using a thin-set mortar:

 

Now the walls are ready for sheetrock!

Now the walls are ready for sheetrock!

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