Insulation in West Moors

Bungalow lofts taken to full depth right into the hips, boarded storage re-decked, and cold rooms in the roof sorted at rafter level.

The site visit is free and so is the written itemised quote. Thomas Hannen prices every job himself.

Last updated

Half the homes in West Moors are bungalows, which means the ceiling and the roof above it are the biggest heat losing surface in the house by a distance. Getting the loft right here does more, for less money, than anything else you could spend it on.

The trouble in West Moors nearly always looks like this. A bungalow that is warm in the middle and cold in every corner, which is what a hipped roof does when the wool stops short of the eaves. A chalet with a room in the roof, or a dormer added later, where that upstairs room is freezing in January and unbearable in July. And a loft somebody has just been up into for the first time since they moved in, with the wool flattened under boards and daylight visible along the eaves.

None of it is difficult work and most of it is a day or less. We are a few minutes up the road, so we come and look before anyone talks about money. The site visit is free, so is the written itemised quote, and if the honest answer is a cross layer, vent trays and a sealed hatch, that is what you will be told.

The work

A hipped roof runs out to nothing at the corners

Celotex rigid insulation boards fitted between roof rafters (one of our own jobs, shown for insulation in West Moors)
Boards between raftersCut tight, with the ventilation gap kept clear behind. Photo from one of our own jobs.

Between and over, to the corners. Most of these roofs went on in the late sixties and early seventies, when a loft got one thin layer laid between the joists.

We repair what is there, close the gaps at the ends of the runs, then lay eco roll across the joists at right angles to a finished depth of about 270mm, which is what the 0.16 u-value in Approved Document L asks of a renovated roof. Half the dwellings in West Moors are bungalows, and on a bungalow the corners are the job: a hipped roof narrows to nothing at every hip, so the last metre is cut work on your knees, and it is the metre most quotes quietly skip.

These roofs sit close to the wall head and the gap over the wall plate is small to begin with. Push wool into it and you have stopped the roof breathing, which is how a dry loft turns into a condensation problem two winters later. Vent trays go in first so the airflow the Approved Document F standard expects is kept, and the depth runs right up to them.

There are a lot of chalets and dormers here, some built that way, some converted since. Once the roof space is a room, loft wool is no longer the answer for it: the work moves to rafter level, with rigid PIR board such as Celotex cut tight between and under the rafters, a ventilation gap kept above, and a vapour control layer before boarding. Behind the dwarf walls at the sides there is a triangular void that is usually forgotten, and that void is what makes the room cold. Where head height is tight, a multi-layer foil quilt such as TLX buys performance without stealing another inch.

Boarded storage, which nearly every bungalow here has. A bungalow loft is big, low and useful, so it gets chipboard screwed straight to the joists and everything in the house ends up on it, squashing the wool to a fraction of its depth. The boards come up, the full depth goes underneath, and the deck goes back on legs so you keep the storage. The hatch is usually a bare sheet of ply, a hole in everything you have just paid for, so it gets boarded and draught sealed; the tank and pipework get lagging because the loft is colder afterwards, and downlighters get covers. Cavity walls of this age were often filled at some point, so a borescope comes before anyone discusses more fill.

How it runs

Insulating a West Moors home, roof first and walls after

Mineral wool insulation being pushed into place between timber studs on an internal wall (illustrative photo for insulation in West Moors)
Insulating a wallMineral wool cut to a friction fit, so there is no gap at the edge. Illustrative photo.

Thomas comes out and goes round the whole house before suggesting anything: the loft, the walls, a room in the roof if you have one, and the floor. He prices it himself. On the quote you will see the survey, clearing, the material and its depth or thickness, ventilation work and disposal as separate items.

Dust sheets stay down throughout and old material is taken away. Damp timber or blocked vents found on the way are photographed and priced, and that part waits for your go-ahead.

Insulating inside a loft is not a planning matter. Because nothing in West Moors sits in a conservation area and only one building in the parish is listed, insulating the outside of a wall is normally permitted development as well, unless a condition on your estate took those rights away. Planning Portal guidance on insulation lists the exceptions. Building control is what catches people out. Under regulation 23, renovating over half of a wall, floor or roof means bringing all of it up to the current standard. So a chalet bungalow's room in the roof is a bigger conversation than laying more quilt on a loft floor. Both go through Dorset Council.

Cost

Bungalows, chalet rooms and cavities: what it costs

Loft room dry-lined and taped between and under the rafters, with a rooflight above (illustrative photo for insulation in West Moors)
A loft, lined and tapedInsulated between and under the rafters, then boarded and taped. Illustrative photo.

Insulation is not priced per square metre, because the same area takes very different time depending on the house. The bungalow loft. About half the homes in West Moors are bungalows, and a bungalow has a big roof over a modest floor. That makes the loft the part that pays back most, and a wide open loft is quick to cover. Hips at each end bring the eaves down low at the corners, and those are slow to reach.

The chalet room. A chalet bungalow with a room in the roof cannot simply have quilt laid. The sloping ceilings, the short walls and the small loft voids behind them each need insulating in a different way, and the sloping parts often mean working between the rafters from inside.

The walls. Being mostly post-war, the houses in West Moors have cavity walls. A borescope check shows whether the cavity is empty, already filled or partly blocked with rubble.

Clearing first. Bagging old quilt and moving stored boxes come before anything new goes down.

The standard. Approved Document L sets the U-value to reach.

Ask other quotes what depth or thickness is being fitted, whether old material comes out, and how the eaves ventilation is kept.

If it is urgent

A cold room, condensation or mould that keeps returning

Condensation dripping in the loft, mould that returns after cleaning, or a room that will not hold heat is a reason to ring us instead of filling in the form. Insulating a roof space that cannot breathe makes it worse, so the first visit settles whether it is ventilation, a leak or a cold spot.

If the cold room is the one in the roof of a chalet, say so, because that is work between the rafters rather than on the loft floor. Scheduled work is Monday to Friday, 8am to 6pm. If nobody is free to answer, we ring back as soon as we can.

Call now: 07435 839745

Worth knowing

In a bungalow, the ceiling is the whole house

Loft conversion insulated with foil-faced boards and mineral wool around a Velux window (one of our own jobs, shown for insulation in West Moors)
Around a rooflightThe awkward edges are where the heat actually goes. Photo from one of our own jobs.

A two-storey house of the same floor area puts half its rooms above the other half, so the ceiling under the loft covers only the upstairs. A bungalow spreads the whole house out beneath a single roof. Every room you use sits directly under that loft, so roughly twice as much ceiling is exposed to a cold roof space, and heat loss through it is the single biggest line in the house.

That is why the same loft job pays back faster in West Moors than it does almost anywhere else we work, and why we will usually tell you to spend on the loft before you spend anything on the walls.

It cuts the other way on the awkward parts. A bungalow roof is mostly edges: hips, verges and a long run of low eaves, and the wool has to be cut into all of them rather than rolled down the middle and left. When you compare quotes, ask specifically what happens in the last metre at the hips and whether vent trays are included, because that is where the difference between two prices usually sits.

It is also worth knowing that a chalet or a bungalow with a loft conversion is not a loft job at all in the eyes of the work: nothing you lay on the floor of a boarded room helps, and the insulation has to follow the shape of the roof instead. If your neighbour four doors down had theirs done, the house is the same age and the same build, and what they were told will very likely apply to yours.

Who you are dealing with

Insulation for BH22, either side of the Ringwood road

Homes in West Moors, Ferndown, Three Legged Cross and Verwood, and the BH22 addresses on either side of the Ringwood road, are all within our area. Our base in Boscombe is 7.1 miles away, and Dorset Council covers planning and building control.

The company is Bournemouth Roofing & Building Ltd, a company in England and Wales, number 15471719, and its owner, Thomas Hannen, carries out the survey and does the pricing. A verified customer on Checkatrade rated us 10 out of 10. The survey visit is free, and so is his itemised written quote. Before you book a visit in West Moors, you can read our customers' Google reviews, word for word, on our reviews page.

Planning at a glance

Do you need planning permission in West Moors?

Most repairs in West Moors need no application at all. What decides whether a change to the outside of your house does is who the council is, whether a conservation area or a listing applies, and whether the place sits in a protected landscape.

The planning position in West Moors, from council and national records.
Question In West Moors
Who decides Dorset Council is the planning authority for West Moors. Dorset Council's heritage pages set out what it controls.
Conservation area None covers West Moors, so a like-for-like repair is ordinary maintenance.
Listed buildings Yes, West Moors has listed buildings. If yours is one, or stands in the grounds of one, work can need listed building consent.
Protected landscape No National Park or National Landscape covers West Moors.

Questions

Questions about insulation in West Moors

Over half of West Moors is bungalows. Why does that matter for heat?

Because 50.9% of homes in West Moors are single storey, and in a bungalow the roof is the main route heat takes out of the building. There is no first floor sitting between your living rooms and the cold. The second consequence is perimeter: a long low eaves line running all the way round the house, and the eaves are exactly where quilt tends to run out before it reaches the wall plate.

Nearly two thirds of the estate dates from one period. Does that show?

It does. 64.6% of the housing here went up between 1945 and 1982, with the heaviest run in the late 1960s and early 1970s at 29.0%. Those houses were built to the same details within a few years of each other, so they fall short in the same places: shallow quilt one way between joists, nothing carried over the wall plate, no trays at the eaves. Neighbours tend to need identical work.

Only one building here is listed. Do we need to ask anyone?

Not for the loft: West Moors has no conservation area and a single listed entry across the whole village, so for practically every address the roof space is repair and maintenance with nothing to apply for. Dorset only becomes relevant if you turn that space into a room, because then structure, stairs, escape and ventilation all come into it, and that is not the same job as laying quilt.

The ground here stays wet. Does that reach the roof space?

Not directly, but it decides how we treat the ground floor. West Moors sits on naturally wet ground, so a suspended timber floor depends on its air bricks to keep the void underneath dry. Pack insulation between the joists and let those bricks get blocked or buried and the timber stops drying out, which trades a warm floor for a rotten one. We open them up and net them instead.

Do we have to move out while you are up there?

No, the work happens in the roof space and on the landing under the hatch, and you carry on downstairs as normal. We sheet the route from the front door to the hatch, seal material into bags before it comes down, and nothing loose travels through the house. What you notice is a ladder in the way for the day and the door on the latch while bags go out to the van.

Free quote

Find out what your West Moors home actually needs

Free site visit anywhere in West Moors, and a written itemised quote showing the depth, the vent trays and the boarding as separate lines.