CONSULTATION VISIT
From your initial inquiry, our consultant will visit you and quickly
determine the feasibility and potential of your loft. (Minimum height
in loft space to the highest point 2.4 metres / 8 feet). After measuring,
your specific requirements will be discussed with you and advice will
be given to you on what is the most suitable conversion for your property.
Shortly after your consultation, you will receive a full specification
and fixed price quotation that is valid for acceptance for 30 days.
Once you have accepted our quote and decided to use Spacial Design &
Development to convert your existing loft space into a habitable room,
our architects will measure up and draw plans ready to submit to your
Local Authority.
Prior to submitting to the Local Authority, draft plans will be submitted
to yourselves for approval. Once the plans have been approved and signed,
they will be submitted to the Local Authority for determination under
the Section 63 of the Town and Country Planning Act General Development
1990. (approx 2-3 months for approval to be granted).
Some properties may not require planning permission, provided the loft
conversion is the first extension and does not exceed 40 cubic metres
on a terraced property and 50 cubic metres on others. This condition
only applies when properties are not located in a Conservation Area
and are not at the junction of two public highways.
All flats require planning permission.
Once planning has been approved we will then prepare Building and Fire
Regulation plans and submit to your Local Authority Building Control
department for design appraisal and structural calculations to justify
the proposed design to the Structural Engineers department for checking
and approval. (approx 4 - 6 weeks for approval).
Upon approval, we will then serve the necessary Statutory Commencement
Notice upon the Local Authority Building Control Department in accordance
with the Regulation 14 of the Building Regulation 1985 (amended 1994).
Spacial Design & Development will then obtain the following permits
from your Local Authority prior to the works commencing.
a) Skips & material use and storage on the highway (Local Authority
Highways Section)
b) Waste disposal containers (New Roads and Street Works Act 1991)
Commencement of work:
a) Erect independent tubular access scaffolding to facilitate access
to the roof area.
b) Create initial external opening to the loft area and provide temporary
weather proofing and secure.
c) Provide replacement water storage tank with valves, tank lids etc.
where necessary.
d) Remove and replace central heating feed and expansion tank complete
with insulation jacket and ball valve.
e) Block off and secure existing loft hatch and make ready for plastering.
f) Cut into existing brickwork and prepare to receive structural steel
bearing spreader plates.
g) Install approximately 100 x 600 x 20 mm structural steel spreader
plates to support steel beams.
h) Provide 25 tonne mobile telescopic crane for site duties.
i) Liase where necessary with the following government bodies:
1) Local Authorities Highways Department.
2) Metropolitan Police Traffic Division.
3) Local bus Operator ( in case a diversion is required
j)
Install heavy duty steel beams ( RSJs ) and universal beams ( UB ) in
accordance with Structural Engineers design with ends of steel beams
bearing securely upon structural steel spreader plates. Provide structural
steel spliced beam connections incorporating where necessary fabricated
bolted spliced connections comprising of 20mm end plates with 10mm fillet
welds all around and a minimum of 12 super strength grade 8.8 bolts
per connections.( where specified provide structural steel cleated connections
). All steel structure to be coated with Brosteel intumescent coating
to provide a minimum of 30 minute fire resistance.
k)Install new independent structural floor joists incorporating 200
x 50 stress graded SC3/SC4 kiln dried structural floor joists at 400
centres. Joists to be fixed directly to steel frame and solid webb noggins
to be placed between structural joists at steel beam connection point
to prevent floor movement. Secure structural floor joists below stud
wall partitions to avoid deflection or bowing.
l) Form structural walls to dormer incorporating 100 x 50 stress graded
structural kiln timber at 400 centres. Provide triangulated bracing
through dormer stud work to avoid movement and vibration. Clad dormer
with 18mm external quality plywood to achieve stability against vibration
through wind and other loadings. Finish internally with fibreglass insulation,
foil backed plaster board and skim of plaster. Provide and fit PVC-U
fascia board, soffit,guttering and down pipes to dormer. Fix coloured
small plain tiles to match existing at appropriate gauge, all in accordance
to BS747 Code of Practice 144 Part III 1970. Provide Code 4 lead flashing
where necessary on all roof junctions. Flat roof to be constructed of
plywood on softwood joists, finished with 3 layers of felt, infill with
fibreglass insulation, foil backed plaster board for vapour barrier
finished with skim of plaster.
m) Supply and fit PVC-U windows to ( BBA,BSI and EN ISO 9002 ), internally
glazed. Glass sealed units, Pilkington glass, low "E" to comply
with document "L" of the Building Regulations as of the 1st
April 2002. Provide alternative means of assisted escape in the event
of fire through a Velux fire escape window, fitted to front slope of
roof.
n) Internal partitions are formed of the following 100 x 50 SC3 sawn
vertical timber studs complete with base middle and head rails overlaid
with laminated plaster board and filled with acoustic and thermal insulation,
and skim finished on either side.
o) All electrics to comply to Electricity Board requirements.
p) Plumbing and heating : to deal with all plumbing points, rooting
in copper tubes as required to new radiators and taps. Customer to supply
all sanitary ware, pump, water heaters. Loft Masters to supply radiators.
q) Prior to installing new stair well, ensure that all door ways are
temporarily sealed . Install new stairwell, closed tread softwood string
staircase to provide access to converted area. Fix softwood handrail
to match/similar to existing.
r) Second fixings: Supply and install 150 mm moulded/shaped skirting
through out converted area. Supply and install 75 mm moulded/shaped
architraves to door openings through out converted area. Fix 30 minute
fire resistant timber doors to habitable areas within converted area.
Provide and fix self closing devices to all doors including the existing
stairwell. Create storage area with access hatch with chip board flooring.
Install Smoke detector system on each floor, interlinked and wired to
the mains.
s) Arrange final inspection with the Local Authority Building Control.
GUARANTEE
Spacial Design & Development give a full ten-year guarantee, with
an optional insurance backed warranty, with an after sales service,
which is second to none.
PEACE OF MIND
With an insurance indemnity of £ 10,000,000.00 and as fully pledged
members of THE GUILD OF MASTER CRAFTSMEN, CONFEDERATION of ROOFING CONTRACTORS
and FENSA APPROVED you can rest assured that Spacial Design & Development
will provide you with an excellent service from start to finish.
