Attic windows for loft conversions



Lay 18mm turned and grooved chipboard sheets onto floor joists. Floor joists vary from 100mm X 50mm to 225mm x 75mm as the size is dependent on the distance they span and the various loads they must carry. These joists are supported by means of top-grade mild steel hangers on either timber or steel joists which, in turn, are supported on load-bearing walls. All floors are designed independently by a qualified structural engineer to the latest codes of practice.


The dormer is constructed in a traditional manner using 100m x 50mm. Softwood framing which, when stiffened by sheets of pre-insulated kingspan roof deck provides a rigid structure. The roof is protected from the elements by three layers of roofing felt, and the dormer cheeks by spanflex felt and vertical tile hanging.

The junction of the existing roof with the new dormer is protected by the use of lead soakers and flashings (these vary depending on the type of tiles to the existing roof. The rainwater to the dormer roof is redirected to a P.V.C gutter and rainwater pipe on the front and sides of the dormer. To see more information Loft conversions Company here.


Windows and doors for lofts usually include roof windows and sliding balcony doors, these are most popular and can be found in 90% of lofts in London area.Ample natural light and good ventilation are essential to healthy living, so an important feature of Court London Lofts is specially designed dormer windows. These are available in many sizes and can be supplied in a variety of combinations of opening and fixed windows. A court refinement is the fitting of offset window hinges allowing external cleaning from inside the room and naturally comply with local authority fire regulations and standards.




Constructed with 80mm pur deck sheets (75mm insulation on 6mm ply) covered by three layers of roofing felt and then inside plasterboard with plaster skim.


Internal walls are to be in 100mm x 50mm studs of 400mm centres with 1oomm x 50mm SW plates top and bottom 9.5mm plasterboard and skim on either side.


Is provided by a staircase one of the most demanding aspects of a good loft conversion. Totally functional yet quite handsome, each court staircase is literally made to measure. They are either open-plan type or with risers, soundly structured with softwood. 


Fire risk is virtually eliminated by the use of fully tested and proven materials including Fireproof panels and hardboard conforming to fire regulations no E5 & E13. Dormer cheeks are also protected from fire by use of 0.50, foil-backed plasterboard on both sides of the timber studding giving ? hour fire resistance.

The roof of the dormer is covered by 3 layers of roofing felt carrying the F.A.A fire rating.

Doors are also fire-checked where considered necessary.

Court London Lofts conversions are designed to conform to local authority fire regulations under any council authority or site


Architraves and skirting boards are provided. Lauan faced ply doors are provided, and are fire checked where necessary Aluminium foil-backed plasterboards with plaster skim finish to walls and ceilings.

The size and design of each conversion may be tailored to suit your own individual requirements and expenditure.

The above specification is subject to the approval of your local authority and may be altered to conform to their regulations. The materials specified are subject to availability and introduction of new and improved products 


The company agrees to replace or repair at its option all faults arising out of the contract works where it is proved to the company’s satisfaction that such faults are due to defective materials or bad workmanship of the company, provided that the fault is notified to the company, in writing within 5 years from the date of completion All such replacements and repairs shall include free delivery and installation labour charges.

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