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by Inform Timber and Damp
Sat Jan 31, 2009 1:10 pm
Forum: Damp and Damp Proofing Forum
Topic: Do i need to damp proof my internal walls ?
Replies: 3
Views: 4786

A damp proof course is installed to protect against rising damp, rising damp will therefore affect internal walls - infact will tend to affect internal solid walls more. External walls will tend to be affected by penetrating damp and condensation, therefore i would advise that you have to identify t...
by Inform Timber and Damp
Tue Jan 27, 2009 9:50 pm
Forum: Damp and Damp Proofing Forum
Topic: Damp either side of bay pre 1900 victorian terrace
Replies: 8
Views: 9573

Any solid wall will allow some moisture movement most renders will be cement bases and restrict this movement which has the affect of reducing this 'breathing' affect of older lime mortars. Cement renders tend to deflect most water away but any moisture within the wall will not escape externally and...
by Inform Timber and Damp
Tue Jan 27, 2009 9:35 pm
Forum: Damp and Damp Proofing Forum
Topic: Concreting cellar floor without membrane
Replies: 3
Views: 3149

Concreting a cellar floor is not a method of damp proofing and is unlikely to have a significant positive effect., it could increase damp problems. Generally there are 2 extremes proper tanking ideally with a sump or if there is no signif ingress of water lots of ventilation or dehumidifier to remov...
by Inform Timber and Damp
Sun Jan 25, 2009 2:03 pm
Forum: Damp and Damp Proofing Forum
Topic: Plastering after damp treatment
Replies: 2
Views: 2918

Depends on degree of damp in wall, ideally it would be prferable to leave wall exposed for months but most people would nt have the patience. i would be more concerned bout the type of plaster going back on the wall since most modern plasters are Gypsum based and are less effective on older and damp...
by Inform Timber and Damp
Sun Jan 25, 2009 1:59 pm
Forum: Damp and Damp Proofing Forum
Topic: annoying condensation problem
Replies: 2
Views: 2762

Try door first, the mould is a symptom of exessive hudity so need to consider how to reduce this by improving ventilation . by dryling the walls of wardrobe this should increase wall temp but could simply move cold spot to another area.
by Inform Timber and Damp
Sun Jan 25, 2009 1:46 pm
Forum: Damp and Damp Proofing Forum
Topic: Damp
Replies: 2
Views: 2200

Black mould is usually related to condensation , whereas a flashing defect would normally be a leak . Any building defect should be resolved, tanking is ony a remdy where you cant get to the other side- ie a basement wall or perhaps as a temporary or belt and braces approach . i woulsd not rec it as...
by Inform Timber and Damp
Sun Jan 25, 2009 1:40 pm
Forum: Damp and Damp Proofing Forum
Topic: My old damp course
Replies: 2
Views: 2212

You do need to get atrustworthy professional in generally the simple rule is you could install a dpc inthe basement below provided that the grond level is below the dpc, otherwise the damp would simply go round the dpc -Damp bridging I am a little surprised that you have true rising damp in a room w...
by Inform Timber and Damp
Sun Jan 25, 2009 1:33 pm
Forum: Damp and Damp Proofing Forum
Topic: Damp either side of bay pre 1900 victorian terrace
Replies: 8
Views: 9573

I am not keen on using dot and dab where damp is or was a problem, as both the adhesive and the plasterboard are very moisture sensitive and dabs will act as cold spots. damp on bays mostly caused bt water ingress around the window, corner posts and junction witjh the wall. Sound pebble dash is a go...
by Inform Timber and Damp
Sun Jan 25, 2009 1:18 pm
Forum: Damp and Damp Proofing Forum
Topic: Mould spots on bathroom sealant?
Replies: 2
Views: 3708

You will need to cut off sealant and reseal using an anti fungicidal sealant.It is quite a common problem, try to regularly dry off sealant to avoid te start of the mould and wipe with bleach
by Inform Timber and Damp
Sun Jan 25, 2009 1:15 pm
Forum: Damp and Damp Proofing Forum
Topic: Damp under the staircase
Replies: 3
Views: 20338

Damp in an understairs cupboard is relatively common often caused or increased by restricted ventilation. I assume all floors are concrete? If damp is coming up through floor installing an injected dpc wont be affective, would need to excavate the area of floor and reform using a dpm (Membrane) This...
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