Dpc height around pvc door

[markus2025]

Hi guys using this image as a example if my dpc is set at the purple mark would this be a issue with the door ?

should the door and dpc be on the same line on the yellow ?

 

[Wayners]

Dpc is set at internal floor height otherwise you will have a damp floor and wall.

 

[markus2025]

If its a cavity wall the internal and external dpc dont have to be the same

 

[^woody^]

DPC can, and if necessary should, run down and under the cill of any frame.

However I suspect you are asking the wrong question, as the is no reason why a DPC would be that high relative to the ground or floor.

 

[markus2025]

I will get a picture of what i have tomorrow but basically my external dpc is say 5 bricks high and my door sill is set on the 4 the brick

 

[markus2025]

Internal damp proof course on the inner skin at 1 brick from ground level not finished floor level ground level and external dpc set at 5 bricks high

 

[markus2025]

This is all on a retro fit so not by new build standard this is the issue when i try to understand on here and folk talk about floor insulation there is no floor insulation as like i say its a part retro fit so im fitting a dpc but not going the whole hog and redoing all the internal floors

 

[^woody^]

Text is hard to understand. Post a sketch, preferably a sectional view.

The whole point of a DPC is to stop water coming up the wall and entering the internal leaf of a cavity wall and the floor.

To that end it can go anywhere as long as it acheives it's purposes. Cavity trays are used where the internal DPC is at a higher level than the outer, and double DPCs used where the internal is lower.

 

[markus2025]

Yeah no worries so that is what i have

 

[markus2025]

I Will draw a sketch though as i know its more hard to explain on text lol

But my internal dpc is about 3 course below ffl but ive used dpc thats wider then the bricks so there was abit sticking out and ive but abit of dpm from that bit sticking out and folded it up ways

 

[^woody^]

But my internal dpc is about 3 course below ffl

You have a timber floor?

 

[markus2025]

Its a timber floor in the bedroom but its concrete in the next 2 rooms along side them

 

[markus2025]

In this bungalow there was no physical dpc so i have retro fitted one.
in the bedroom which is on wood suspended floors i have set the dpc one brick up from the sub floor , i have carried that all the way along from the bedroom into the next 2 rooms which are concrete floor this meaning that the ffl of the concrete floors are 3 bricks above the internal dpc but i have connected dpm with the dpc and brought it up to the ffl

 

[^woody^]

DPC goes under the floor joists of timber floors, not at skirting level, and the joists or deck should not touch bare brick. The DPC should then step up to the surface level of any concrete floor, and the slab should be protected/separated by a DPM between it and any brickwork.

You probably need to research the principles of the damp barrier, and then apply them to your situation, if it's non-standard.

 

[markus2025]