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Condensation in loft.
in In my home (includes DIY) MoneySaving
87 replies 6.4K views
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Although lap vents are seen as a DIY solution in the trade, if they work for you it's worth giving them a try.
At least you went into the roof space, and spotted the problem.
.withdrawal, NOT withdrawel ..bear with me, NOT bare with me
.definitely, NOT definately ......separate, NOT seperate
should have, NOT should of .....guaranteed, NOT guarenteed
The cavity is normally closed to prevent too much convection and heat loss.
A small amount of ventilation is provided through weep vents. These are considered more important with timber frame houses.
With a timber frame house they are usually at DPC, at frames, and sometimes at eaves level.
I've seen the lap vents before but have yet to try them. perhaps it is time. More costly alternative is new breathable membrane but still not sure how effective in the long term it will be.
Electricity: about 3kw south facing solar array, EV, Octopus intelligent, thinking about getting a battery...
The timber getting soaked is a purlin.
Having said the above it's clear we have no vents and the insulation is only about 100mm thick which surprised me. Looks like I'm gonna be doing a bit of DIY.