Will the insulation in the walls make them rot away sooner? I heard sometimes it can increase mold and rot in old houses?

Is that closed or open celled foam? Would this not destroy the old homes capacity to dry from the water that makes it through the brick?

@ClovisRamsay

10 ай бұрын

Yes this prevents the masonry from breathing out moisture and inhibits the home from creating positive pressure, as old homes pre 1950's were designed to do. It's much better and safer to wrap the homes exterior if one can afford to, or, insulate with rockwool.

one odd thing here - you added a ventilation fan, but provided no make up air. Where do you think the air leaving the house is coming from? So... all that make up air is going to come from the cracks and crevices you missed, creating moisture problems in the walls. The point of sealing a house is the ability to control when and where the exterior air comes from. If you ventilate, you need to replace that air with controlled air though a ventilator, preferably a heat recovery ventilator.

@DarenSpinelle

8 ай бұрын

It's prob worse than that. Gas powered water heater or central heat, fire place, stove; all locations with a need to exhaust air to the outside and now at a greater risk of reverse airflow and subsequent carbon monoxide poisoning.

The space between brick and the stud wall should not be insulated as that space is to allow the brick to dry out. Wet bricks can result in them falling apart.

@appletongoose

4 жыл бұрын

On the exterior, not on the interior. The entire assembly will dry to the exterior which is common for a northern climate.

@rhtservicesllc

4 жыл бұрын

@@appletongoose both sides of the brick need to breathe. Thus why putting insulation on the back side of the brick will not allow it to dry properly

@appletongoose

4 жыл бұрын

Kenny The Almost Engineer I do not agree, but there are multiple ways to do it. In this case the closed cell foam is your vapor barrier. Thus this side is impermeable- but there is no permeable layer on the exterior, which- in a midwestern climate- is the correct flow of vapor. Heat moves to cold, and in Chicago we primarily heat our homes, therefor the vapor drive is primarily to the exterior. The closed cell foam actually improves the brick as interior vapor is blocked from getting to the bricks. They’ll now be the driest bricks in the assembly.

@jimhendrix7776

2 жыл бұрын

I agree with this comment! If its not important it wouldnt b there in the first place theyd just plaster right on the brick...

Sealing the rain drain space between brick and wall is a bad bad bad idea. It traps water that gets past brick in the wall

@Germatti13489

3 жыл бұрын

Yes, you can't block the drains, they are there for a reason.

I understand that every home is different and unique, however a baseline cost estimate would be nice information to have in order to consider having this assessment done to my Bungalow.

Would be a lot better if you posted up before and after ACH numbers

Lol bahaha uuuum that 1" gap between brick and plaster is there for a reason lol :/!!!

I have heard of issues with the foam insulation. 👵

Wouldn't do it