Victorian house with damp walls

This Forum is for all questions relating to Rising damp, Penetrating Damp, Basement Drainage, Cracked Masonry and Wall tie replacement.

Moderator: Moderators

Post Reply
Victorian
Newly registered Member
Posts: 2
Joined: Sun Jul 08, 2018 11:10 am
Has thanked: 2 times
Been thanked: 0

Victorian house with damp walls

Post by Victorian » Sun Jul 08, 2018 11:49 am

Hi all, this year my fiance and I bought a Victorian terraced house which unveils more and more problems since we started scraping all the layers and layers of wallpaper off.
We are first time buyers and thought it only needed rewiring and some decoration, at least that is what the surveyor reported to us. Now, that we noticed damp patches and mould under the layers of wallpapers, we had a builder come in who urged us to damproof the whole house with injections for a couple of thousand pounds!

Having done more research on the topic and especially period properties, i now doubt that it is actually the right course of action and would like to ask you to confirm or correct what I assume could be the causes of damp in our house:

1. Use of modern plasters, making the walls unable to breathe: we noticed most walls were gypsum/cement plastered, partly already patched with some waterproof plaster.

2. Waterproof glossy paint in many rooms.

3. Garden is sloping down against the back of the building, parts of it are either cemented or big tiles were lay there. No drainage was installed.

4. In front of the building, there is a cemented patio, again no drainage visible, and its surrounded by a thigh high wall.

5. Certain walls have been insulated with polystrene mats (not sure thats the right term).

6. The chimney breasts were especially damp/sticky. They have been closed at some point, there are no vents installed.

6. Before we moved in, the house was a shared house, which means probably everyone dried clothes in their own room, doors were always closed, there was 4 times the cooking, 4 times the showering etc. Which is a lifestyle that created a damp environment.

All in all, i do suspect that all these factors together contributed to having damp walls and that injecting the walls is perhaps not even necessary.

But what do you think? Thanks for your thoughts an answers in advance!
Rorschach
Senior Member
Posts: 3720
Joined: Wed Feb 26, 2014 9:35 pm
Has thanked: 46 times
Been thanked: 754 times

Re: Victorian house with damp walls

Post by Rorschach » Sun Jul 08, 2018 12:37 pm

If you can suffer it, I personally would give the whole house a thorough clean and airing out (easy in this weather) and then do a winter before doing any major work. Winter really shows up where damp is getting in, where condensation builds up, the cold spots, the warm spots etc.

In the meantime so you don't feel like you are wasting time, use the warm weather to sort out garden, rain water running towards the foundation will make the walls really damp. Consider re-landscaping to direct water away, make sure your gutters are clear and working properly and consider installing ACO drains around the any areas where water is likely to stand.

Injected DPC is likely to be a waste of time and money is better spent on ventilation and limiting water ingress.
These users thanked the author Rorschach for the post:
Victorian
Rating: 7.14%
User avatar
Dave54
Senior Member
Posts: 4019
Joined: Wed Feb 25, 2015 7:20 pm
Has thanked: 1006 times
Been thanked: 930 times

Re: Victorian house with damp walls

Post by Dave54 » Sun Jul 08, 2018 12:49 pm

:withstupid:
https://www.architectsjournal.co.uk/hom ... 95.article

Make sure the outside ground level is below the inside level.
Ventilate indoors.
These users thanked the author Dave54 for the post:
Victorian
Rating: 7.14%
User avatar
ronan01
Newly registered Member
Posts: 12
Joined: Tue Jul 10, 2018 5:26 am
Location: London
Has thanked: 0
Been thanked: 0

Re: Victorian house with damp walls

Post by ronan01 » Fri Jul 13, 2018 2:09 pm

Doors and windows can be affected due to rain runs down and seeks out joints between the frames, walls. overflowing gutters, cracked downpipes and leaking overflow pipes cause water to splash on hard ground surfaces next to the house or maybe plumbing leaks.

You can repair any leaking gutters, drains or maybe damp proofing can be the final option. Good luck :)
fin
Senior Member
Posts: 6817
Joined: Wed Apr 16, 2008 6:49 pm
Location: south tyneside
Has thanked: 30 times
Been thanked: 523 times

Re: Victorian house with damp walls

Post by fin » Thu Jul 26, 2018 5:18 pm

chimneys always are problems for damp. in the old days it would have been fine as they had propper fires on the gan all the time. now most of them are bricked up.

what often can affect old houses is when the cavities are blocked up. this deffo causes damp problems and if that is the case an injected damp course only will not work.

you cna also get various tanking solutions if the damp problems are real bad.

also we did work in a victorian terraced house a while back and also in the same house major works about 18 years back. the whole street had horrific damp problems. all the timber floors were rotten. all the walls were damp. there was so many leaks under the ground from water pipes that northumbrian water were on for months finding and fixing them. it was so bad that the gutters were wet with water at the sides of the road even in weather like we have at the moment
fin
Senior Member
Posts: 6817
Joined: Wed Apr 16, 2008 6:49 pm
Location: south tyneside
Has thanked: 30 times
Been thanked: 523 times

Re: Victorian house with damp walls

Post by fin » Thu Jul 26, 2018 5:19 pm

chimneys deffo deffo need ventilation
User avatar
wine~o
Senior Member
Posts: 24690
Joined: Sat Jan 10, 2009 3:49 pm
Location: hants/dorset border
Has thanked: 1325 times
Been thanked: 3632 times

Re: Victorian house with damp walls

Post by wine~o » Thu Jul 26, 2018 5:30 pm

Sorry missed this thread on account of ... being busy.

Those injected DPC's don't generally work, you'll need to get rid of any gypsum plaster and re-render with lime.

As per others posts ventilation is key.
Verwood Handyman

Verwood Handyman


___________________________________________________________________

If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.donnasdreamhouse.co.uk
Post Reply

Return to “Damp Proofing and Remedial problems”