Loft insulation in Burley

Full depth over the joists, the eaves left open, and nothing on the roof for anyone to object to.

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

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Most Burley lofts need topping up to around 270mm of mineral wool, but the far edge decides whether it works. The wool has to reach the wall plate and stop there, with the air path at the eaves left open, and getting that wrong is the most common fault in older roofs. Boarding goes on legs over the new depth, and the tank and its pipework are lagged. The rest of a Forest cottage is on insulation in Burley.

Burley lofts tend to go cold or go wet, and the two look like opposites. Cold means a bedroom under the slope that never holds its heat, or a whole cottage that costs a fortune to keep warm. Wet means droplets hanging off the underside of the felt, dark staining creeping along the rafter feet, a corner of the wool that squeezes water out of it.

They are usually the same fault seen from either end. Somebody added depth, ran out of headroom at the edge, and pushed the material on into the eaves to make it look finished. So the first visit to a Burley loft is a proper survey, not a price: what is up there, how deep it genuinely is, whether the wall plate still has daylight over it, what the roof is made of and how the air was meant to move. Photographs of the lot, then a free written itemised quote. The site visit is free too.

The work itself

Where the wool stops matters more than where it starts

Mineral wool insulation laid between and over the ceiling joists in a loft (illustrative photo for loft insulation in Burley)
Two layers, crossedThe second layer runs across the joists so the timber stops being a cold bridge. Illustrative photo.

Start at the edge, because that is where these jobs are won or lost. The material is carried out across the ceiling until it sits over the wall plate, and there it stops.

Above it a vent tray at each rafter holds an air gap open, and along that gap cross ventilation runs from one eaves to the other and takes the moisture out of the roof. Ram the wool on past the plate and none of that happens. The dew point moves into the layer, interstitial condensation forms out of sight, water runs off the underside of the felt onto the insulation, and black mould works its way along the timbers. Approved Document F is the standard for it. Where a roof has boxed soffits that cannot be opened up, a ridge vent or a run of tile vents does the job instead, and a modern breathable membrane changes the detail rather than the requirement.

Then the depth, which is the easy part once the air is sorted. One layer between the joists, friction fitted so there is nothing open at the sides. A second cross laid over the joists at right angles, burying the timber so it stops carrying heat straight down through the ceiling. About 270mm all in is the mark a renovated ceiling is expected to hit under Part L in Approved Document L, and it is one of the cheapest reductions in heat loss an old house here has left. Mineral wool roll on the open runs, rockwool batts where the bays are all different widths, glass wool, loose fill where the timber leaves no other way in, sheep wool if you want a natural product.

Older roofs around Burley take a bit more thought. A cut roof with purlins and no underlay at all breathes beautifully, which is a help, but the wind gets in and shifts loose material about, so the layer is cut in and closed off at the perimeter rather than left to lift. Newer houses and extensions are trussed, and there everything is fed in from the hatch because the bracing will not let you move about. Either way it is work at height even though you are indoors, and the ladder, the hatch and the crawl boards are settled before anything else.

Rural lofts collect things, so there is nearly always a clear out. Material that has settled, gone patchy, been compressed under storage or is contaminated with droppings comes out in bags and goes on the van, and if something has been getting in through the roof we show you where rather than covering it over. After that the fittings: fire rated covers over every recessed light and downlighter, cable and wiring clipped above the new layer instead of buried in it, lagging on the cold water tank and its pipework now they sit in cold air, a board and a draught seal on the hatch, loft legs and a raised floor where you want storage so the boarding does not crush what is underneath, and the loft ladder checked against the new height. Where a room has been built into the roof already, the job moves to rafter level as a warm roof: PIR rigid board such as Celotex cut tight with an air gap kept above it, a layer under the rafters, taped joints, and multi-foil quilt in the sloping ceiling and dormer cheeks where the depth has run out.

How it runs

Topping up a loft without trapping damp in the roof

Rigid insulation board fitted between the rafters in a loft (one of our own jobs, shown for loft insulation in Burley)
Board where depth is shortRigid board earns its place where the headroom will not take quilt. Photo from one of our own jobs.

Thomas goes into your Burley loft, measures what is there, checks the eaves, the felt and the timbers, and prices it himself. The quote lists the survey, clearing and bagging what is up there now, the new material and its depth, keeping the eaves clear, insulating the hatch, lagging the pipework, and disposal.

The first layer goes between the joists and the second crosses them, so no timber is left as a cold line. Eaves trays keep air moving from the soffit into the roof space, which matters in a Burley house under trees that sees little sun. Stairs and landing are sheeted, old material comes down bagged, and the van is moved once unloaded so the lane stays clear. A tear in the felt, a soft rafter or a drip from above is photographed and priced before anything covers it.

The insulation itself needs no permission. It is inside the building, so it is not development, which Planning Portal guidance on insulation confirms. Burley is inside the National Park, so what is controlled is the outside: a rooflight or tile vents on a slope the street can see may need an application, and National Park heritage and conservation guidance sets out how the Authority looks at it. Regulation 23 applies once over half a roof is renovated, and HMRC's notice on energy saving materials covers the VAT.

Cost

Why the awkward corners cost more than the open loft

A loft insulated at rafter level with the gable filled and a rooflight fitted (one of our own jobs, shown for loft insulation in Burley)
At rafter levelA room in the roof is a different job from a cold loft floor. Photo from one of our own jobs.

A loft is priced by what is in the way, not by floor area. The open middle is quick; the edges eat the time.

The hatch. A cottage with a small hatch over the stairs, a modern house with a trussed roof full of bracing, and a bungalow with a boarded loft full of boxes are different mornings. A hatch over a stairwell needs a platform before a single bale goes up.

What is up there. Thin, squashed or damp insulation comes out in bags. If you want to keep your storage, the boards have to come up and go back, or be raised on loft legs above the new depth.

The trusses. Trussed rafters with diagonal bracing mean cutting the insulation round each member, which is slower than rolling it along clear joists.

Airflow. Blocking the eaves traps moist air, and it condenses on the felt. In a house shaded by trees, extra vents may be worth fitting.

Corners and extras. Getting full depth right into the corners and around the hatch, boxing over downlighters and lagging pipes and tanks is where most of the labour goes. Approved Document L sets the target.

Ask each quote to state the depth and number of layers, whether old material is removed, and what happens to what you store up there.

If the loft is wet

Mould on the rafters or water on the underside of the felt

Plasterboard taped and jointed on a lined loft wall (illustrative photo for loft insulation in Burley)
Lined, then tapedWhere the loft becomes a room, the boarding and the joints come next. Illustrative photo.

Droplets on the felt, black mould on the timbers or insulation that is visibly damp mean warm, wet air is getting into a Burley loft that cannot breathe. The timbers pay for it, so it should not wait. Ring us instead of filling in the form.

Our loft jobs are scheduled Monday to Friday, 8am to 6pm; if your call is not answered, we ring back as soon as possible. Thomas looks at where moist air gets in and how the roof space vents, and settles the ventilation before anybody talks about adding depth.

Call now: 07435 839745

Inside the Park

The one improvement here that nobody has to approve

The village has its own conservation area and the whole of it sits inside the National Park, so almost every improvement to a house here starts with a conversation about how it will look. Insulating the loft is the exception. It happens under the tiles, nobody outside can see a millimetre of it, and there is no application to make to anybody.

That is worth knowing because it changes the order you spend in. If the cottage is cold and the budget is finite, the loft comes first: one of the largest losses in the building, the cheapest to put right, and the only part of the fabric that cannot be argued about on appearance. The line falls at the roof surface. Anything that shows changes the picture, and on an older roof the usual reason for wanting something to show is ventilation, so where we can we take the air at the eaves and through the soffit rather than putting vents on a slope the lane can see. Where a slope vent is genuinely the only answer, National Park heritage and conservation guidance sets out how the National Park Authority looks at it, and on a listed cottage consent reaches inside the building as well as out.

Who you are dealing with

A loft installer for Crow, Bransgore and Ringwood East

We insulate lofts in Burley, Bransgore, Crow and the BH24 addresses around Ringwood East. Burley is 8.8 miles out from Boscombe. The National Park Authority decides planning; New Forest District Council handles building control. The company is Bournemouth Roofing & Building Ltd, registered in England and Wales, company number 15471719. Before you book a visit in Burley, you can read our customers' Google reviews, word for word, on our reviews page.

Up in the loft it will be Thomas Hannen himself, the owner, who surveys and prices the job. A verified customer gave us a 10 out of 10 score on Checkatrade. The survey and the itemised written quote cost nothing.

Planning at a glance

Do you need planning permission in Burley?

Most repairs in Burley 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 Burley, from council and national records.
Question In Burley
Who decides New Forest National Park Authority is the planning authority for Burley. New Forest National Park Authority's heritage pages set out what it controls.
Conservation area Yes: Burley Conservation Area. Check whether your street is inside the boundary before changing anything visible.
Listed buildings Yes, there are listed buildings in and around Burley. If yours is one, work can need listed building consent.
Protected landscape Inside the New Forest National Park, where design is looked at more closely and permitted development rights are narrower.

Questions

Questions about building work in Burley

How do we tell if our eaves have been blocked up?

Blocked eaves can often be seen from inside on a bright day. Kneel at the edge of the loft with the light off and look along the wall plate: an open eaves shows a thin line of daylight or at least a draught on the back of your hand.

If the wool runs solidly into the corner and the air stops dead, it has been filled. The other sign is on the timbers, where the rafter feet go dark before anything else does.

Is it worth doing if the roof has no felt under the tiles?

Yes, and that roof is easier to get right than a sealed one, because it ventilates itself. The difference is in the finish: air moving through the space will lift and shift a loose layer, so it is cut to fit, closed off at the perimeter and held down, not laid and left. What you should not do is felt an old roof to make the house warmer. That is how dry timbers turn into wet ones.

Can you work around a thatched roof?

Thatch is a different trade and we do not touch it. What sits below it is a separate question and we are happy to look, but on that sort of roof the ventilation and the fire detailing have to be thought through by somebody who knows the covering, so we would tell you to get that advice first instead of laying material and hope.

Do we need building control for the loft floor?

Not for laying insulation over a ceiling on its own. Building control comes into it when the roof itself is renovated, or when the space is converted into a room, and then the whole element has to reach the current standard rather than just the part you touched. We tell you which side of that line your job sits on at the survey.

Nearby, and next door

Loft insulation near Burley

Free quote

Book a look in the loft

We come out, measure what is up there and put the depth, the ventilation and the hatch in writing. The visit and the quote are free.