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I'm trying to identify what these vents/air bricks are for on a house I am in the process of buying. I don't see anything matching internally. The walls are solid, not cavity so it's not a cavity vent. So is it a vent for the loft space or a vent which has been blocked off internally? There are two or three of these. Asking because the house is suffering from damp so thinking of opening these up if they have been blocked off. Thanks in advance.

My erectors are currently building my SIPS roof on the ground in cassettes then they will lift single bigger sections onto the roof with the crane there - which is fine and I'm ok with. But they are fitting the roofing membrane on these sections (laid horizontally and lapped towards the top as it should be) and then will lap it over the adjacent cassette joining sections, with the required horizontal lap. I was questioning this being ok as then there are these vertical joins which albeit would be similar to if you finished a roll then starting the next but should I be worried about this, I have asked them and they say it's the norm for them. This has raised questions for me on the SIPS fascia detail which I need to move along quickly so roofers can start. See drawings below which I sketched up - I have a few queries I ned help with: It's slates mounted on battens then counter battens (the English way, but done in Scotland!). Gutter detail omitted for clarity, membrane not shown either but theoretically it laps over the eaves protector. 1)Does this detail look right? 2) Does the over fascia vent go above or below the eaves protector? (I've seen it shown below, but that wouldn't make sense in this instance as it would be venting that small space only) 3) If the roofing membrane is already laid - do I pull it up back up to the counter batten then stick the eaves protector underneath, or do I just tape on a new bit of membrane so the water can run onto the eaves protector? or just tape the eaves protector down to the membrane? any guidance appreciated

My erectors are currently building my SIPS roof on the ground in cassettes then they will lift single bigger sections onto the roof with the crane there - which is fine and I'm ok with. But they are fitting the roofing membrane on these sections (laid horizontally and lapped towards the top as it should be) and then will lap it over the adjacent cassette joining sections, with the required horizontal lap. I was questioning this being ok as then there are these vertical joins which albeit would be similar to if you finished a roll then starting the next but should I be worried about this, I have asked them and they say it's the norm for them. This has raised questions for me on the SIPS fascia detail which I need to move along quickly so roofers can start. See drawings below which I sketched up - I have a few queries I ned help with: It's slates mounted on battens then counter battens (the English way, but done in Scotland!). Gutter detail omitted for clarity, membrane not shown either but theoretically it laps over the eaves protector. 1)Does this detail look right? 2) Does the over fascia vent go above or below the eaves protector? (I've seen it shown below, but that wouldn't make sense in this instance as it would be venting that small space only) 3) If the roofing membrane is already laid - do I pull it up back up to the counter batten then stick the eaves protector underneath, or do I just tape on a new bit of membrane so the water can run onto the eaves protector? or just tape the eaves protector down to the membrane? any guidance appreciated

Could someone advise me on what these red bricks are running along the front of my house wall? They look like vents maybe however i already have air vents at the bottom of the wall if you see the picture. I want to remove the red bricks but not sure if i should or not. All the houses down my street are the same style/design however mine is the only house with these odd red bricks vents. Please advise. Dean

So I have a timber frame with an outer block and render skin. Our external finished ground is going to be level with the slab (including channel drains at every opening). MBC have installed their DPC under the sole plate and lapped it down to the ring beam that supports the blockwork (see image below). I think I've gleaned that standard practice is then to add a second DPC 100-150mm above the external ground level and lap it down onto the frame DPC. Does that sound right? However, where I'm confused is where to put the weep vents? If they go at the bottom then they will be blocked by the external ground. If they go at the higher level then the lower section could just fill up with water. I'm beginning to to think I've got this detail all wrong?

Hi. Current annoyance is trying to find a supplier for a stairwell smoke ventilation window / roof vent for a pitched roof. Anyone got a lead for such a supplier ? Has to open to 120 degrees from horizontal iirc. Thanks all.