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See PAS 2035:2023 Annex C, regarding any improvement to the building fabric and ventilation assessments. And the 'Whole House' principle and moisture risk as defined by BS 5250:2021, which identifies that restricted air exchange in highly insulated environments leads to elevated relative...

You'll need to check the wall for bowing and the roof for sagging. Also the type and size of the cracking externally can be a good indication of the movement and possible cause

The issues appear to be with the finishes and not the frames. New windows won't solve this

What the view from the outside? If that is caused by roof spread, then it will tend to be on-going

Venting through a flat roof would be the highest risk and least preferred option. Are there other possible options for siting the fan and running the duct? There will be costs involved in working at high level and messing about with ducting and vents, so you will be charged a premium for that...

At the lowest speed possible to do what you need it to do

Drop the existing guttering to the bottom of the fascia. Run new gutter on the shed and return it along that brick garage and connect it to the existing gutter. Fit a roof sheet just below the garage roof, falling towards the shed. Water will run down it, on to the shed and then back under it...

Be aware that the bitumen adhesive commonly used for old parquet tends to contain asbestos fibre. This will be a relatively small amount of the least hazardous type and can be managed with simple precautions - you won't need specialist firms nor its complete removal, but all the same care should...

Vinegar is not an accurate test. Lime plasticiser or natural carbonates in the mix can cause it to fiz. If you need to know for sure it should be laboratory tested. Generally, a grey shade would tend to indicate cement, as would a finer, denser grain appearance and it being harder and pieces...

Unless you are having this designed properly to meet a specific target u-value, then you are reliant on an ad-hoc method and won't know if 20/40/50 or 70mm of insulation is either required or worth it in terms of cost/payback and comfort. Its a balance between cost, effort/disruption (including...

The time and effort won't be worth it, and it will deteriorate soon after you put the last coat of varnish on. Many plastic filters actually hold water in the wood and accelerate decay. The joints will expand and contract naturally, and water will still get in via those lose panels too. By...

The reversion application is merely factual and procedural statements, not technical, so you should be able to complete it yourself.

Insulation does not magically make a room warmer. There must is a heat source in the room keeping it heated Ideally, insulation should be on the room side. Otherwise, you need to be certain that there are no air gaps in the wall frame letting cold air in behind the insulation layer. Don't...

If the surfaces are paper, or if in unpainted areas the surfaces are a different colour to the edges, then it's plasterboard.

it's common for roof timbers to be supplemented not substituted, as long as any other connected timbers are still secure. This can normally be done from the inside.

If you could apportion any blame to that, then that would be a good strategy. Normally, any work into the ground requires a detailed ground survey/assessment for underground services. If this pole has damaged the drainage system in any way, then there is negligence, and with that comes the...

It's not very wise to try and deal with condensation issues with isolated changes. You need to know what is actually causing it - the building or the people in it, and deal with issues in combination. You certainly should not be thinking in terms of putting "x" amount of insulation on a wall and...

The fundamental thing is that the walls are adequately tied and restrained by the roof to form a rigid monolithic structure. Half brick walls up to one storey are good enough and easily justified by calculation if need be. If anyone can tell me when housebuilders stopped building single skin...

For a carport? :rolleyes:

Frost layer is up to 6" below the surface. Don't over think it, these are fence posts.