I recently read a book called "dampness in buildings" by T.A Oxley anyone read it? //www.diynot.com/forums/viewtopic.php?p=1582758#1582758
In a nutshell because of its physical and geological characteristics, the Earth, which rotates and is covered by north-south magnetic “force-lines”, generates a considerable amount of radiation. This radiation includes the presence of electromagnetic fields that give rise to electrical charges in water molecules and in the capillaries of the materials used to build walls.
These charges attract water to the drier capillaries at a higher level, until a balance is reached and a tide-mark of dampness forms.
What part of a tree is the TommyOMG, I've just re-discovered this site and can't believe I've missed all the action of this thread.
What tommy rot, don't they know rising damp doesn't exist.
Bearing in mind trees grow in all types of soil it's never going to happen is it?
Softus you're a superstar!
I've never thought about that before, I assume that it's the bit they make guns from.What part of a tree is the Tommy
Amphibian makes a very valid point here i think, and one that i've been wondering about myself. Can anyone answer it?However, there is one error in all this thinking, irrespective of the presence or not of a vertical wall covering, the mortar alone represents one continuous and uninterrupted material from ground to ceiling, the horizontal inter-brick mortar is in contact with the vertical mortar and as it is the same material it has the same capillary size. Imagine your house, you can place your finger on the pointing at floor level and run all the way to your roof without ever once having to cross another material, take your finger off the mortar or anything of the kind. What is it that prevents the mortar alone wicking water up from the base of the wall and saturating the bricks?
No.Thanks to anyone who takes the time to respond, or is it time to silently retreat?
That was not an original points by Amphibian - it was one of my points from The Very Beginning. Of course damp can rise between rendering and/or plastering and the brickwork - this is one of the many things that can be cured by replacing blown render, and by stopping water from getting behind the render in the first place.Amphibian makes a very valid point here i think, and one that i've been wondering about myself. Can anyone answer it?However, there is one error in all this thinking, irrespective of the presence or not of a vertical wall covering, the mortar alone represents one continuous and uninterrupted material from ground to ceiling, the horizontal inter-brick mortar is in contact with the vertical mortar and as it is the same material it has the same capillary size. Imagine your house, you can place your finger on the pointing at floor level and run all the way to your roof without ever once having to cross another material, take your finger off the mortar or anything of the kind. What is it that prevents the mortar alone wicking water up from the base of the wall and saturating the bricks?
Protecting from sulphate attackso why do we put membrane down then.
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