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DINING AREA KITCHEN GARAGE / STORE HALL up up up services gas i.c SITTING ROOM PAVEMENT W.C HALL CUP'D 2510 6020 2116 1095 up i.c 600 up 900 vent HALL 2458 2100 KITCHEN UTILITY cyl FLAT ROOF down boiler CUP'D vent rwp&g DINING AREA KITCHEN YARD GARAGE / STORE HALL UTILITY up up up services gas up boiler cyl i.c oil SITTING ROOM PAVEMENT YARD UTILITY gas 2100 900 STUDY FLAT ROOF down G R O U N D F L O O R P L A N 1 : 5 0 T Y P I C A L S E C T I O N 1 : 5 0 Rev Date Initial Comment . . . . Drawing Name Drawing no. Revision Status Project Site Client Date Scale © copyright - Reproduction of any element contained within this drawing is prohibited without written approval of the owners : ArchTec (IOM) Ltd THIS DRAWING IS PREPARED FOR APPROVAL PURPOSES ONLY. e: [email protected] t: 01624 622122 m: 07624 498099 w: www.archtecarchitectural.com Written dimensions to be taken in preference to those scaled & should be verified on site & confirmed in advance of any site works / fabrication Alterations to rear of dwelling As Shown @ A1 1668.1 June 2023 Application Drawing William Loughran Esq Planning & Building Control Osborne House 5 Osborne Terrace Douglas IM1 3LH ArchTec (IOM) Ltd. The Architectural Studio 7 Olafs close Douglas Isle of Man IM2 7AR F I R S T F L O O R P L A N 1 : 5 0 re-build parapet wall with recess for surface water dispersion resurface remaining yard to clients discretion any paved areas laid to falls to aid surface water dispersion up to current pavement relocate & replace current oil boiler with gas fired combi boiler ensure a drainage connection is provided for combustion vapour - all by gas safe engineer install carbon monoxide detector local to appliance overlap insulation in wall & floor by min 200mm install code 5 flashings & cover flashings at abutment of new roof & existing walls with bell mould over check for existing external drainage within yard & confirm levels & adapt to accept new drainage from utility area - remove redundant i.c if practical where below ground drainage is encased in concrete flexibility at joints in pipework must be maintained contractors to carefully expose existing drainage arrangement - appraise levels & rationalise system to suit proposals existing redundant drainage removed lintel over drains where passing through new walls - min 50mm clear void around pipe masked both sides with rigid material new walls affixed to existing using furfix or similar ss wall anchors with vertical dpc cut into walls & toothed masonry connection area covered by interlinked mains powered heat detection to BS 5446 part 2 WINDOWS & VENTILATION : ALL WINDOWS & DOORS IN UPVC SAFE BY DESIGN TO SUIT AREAS OF SEVERE WEATHER EXPOSURE DOUBLE GLAZED, WITH ARGON FILLED 12MM CAVITY AND PILKINGTON K GLASS OR SIMILAR LOW EMMISIVITY GLAZING BAND C OR BETTER 0.16 W/MK. OPENING VENTS TO PROVIDE A MIN OF 1:20TH VENTILATION OF RESPECTIVE FLOOR AREA, FITTED WITH 8000 MM2 TRICKLE VENTS SAFETY GLAZING TO BS 6206 TO CRITICAL AREAS WHERE LESS THAN 800 MM ABOVE FFL MECHANICAL EXTRACT VENTILATION TO WC CAPACITY MIN 30 LITRES/SEC OPERATING INTERMITENTLY IN CONJUCTION WITH LIGHT SWITCH, WITH 15 MINUTES OVERRUN UTILITY ROOM CAPACITY 60 LITRES / SEC. GENERAL: HEATING & HOT WATER SUPPLY TO BE PROVIDED BY NEW GAS FIRED CONDENSING COMBI BOILER CAPACITY ESTABLISHED BY GAS SAFE QUALIFIED ENGINEER, RADIATORS TO BE FITTED WITH THERMOSTATIC CONTROLS.. SMOKE / HEAT DETECTORS TO BS 5446 MAINS POWERED WITH BATTERY BACK UP SUPPLY, LINKED TO SOUND IN UNISON & CONTRACTORS ARE TO CHECK AND CONFIRM SITE LEVELS PRIOR TO COMMENCEMENT OF WORKS ON SITE. ANY ELECTRICAL WORKS ARE TO BE EXPEDITED BY A COMPETENT ELECTRICAL ENGINEER WORKS IN COMPLIANCE WITH BS 7671:2001AND ASSOCIATED GUIDANCE NOTES & REGULATIONS. PROVIDE MIN 2 NO FIXED POSITION ENERGY EFFICIENT LIGHTING TO ACCEPT LAMPS HAVING A LUMINOUS EFFICIANCY GREATER THAN 40 LUMENS PER CIRCUIT WATT. PROVIDE MIN 2 NO FIXED POSITION ENERGY EFFICIENT LIGHTING TO ACCEPT LAMPS HAVING A LUMINOUS EFFICIANCY GREATER THAN 40 LUMENS PER CIRCUIT WATT. DRAINAGE : IF NECESSARY LINTEL OVER DRAINS PASSING THROUGH WALLS MIN 50MM CLEAR SPACE AROUND PIPE MASKED BOTH SIDES WITH RIGID MATERIAL. 100MM DIA PVC DRAINS IN PEA GRAVEL TAKEN 50MM OVER TOP OF PIPE WITH SELECTED BACKFILL OVER AND ENCASE IN CONCRETE WHERE EXPOSED TO VEHICULAR MOVEMENTS. FOUL DRAINS TO DISCHARGE IN TO DEDICATED EXISTING SYSTEM - CONFIRM ALL LEVELS TO MIN 1:40 FALL. P.C CONC SURROUNDS TO ALL BACK INLET GULLEYS. 40MM DIA PVC WASTE TO APPLIANCES WITH DEEP SEAL TRAPS & RODDING ACCESS POINTS AT CHANGES IN DIRECTION - PROVIDE COMPRESSIBLE SEALANT TO SURROUND ANY PIPES BETWEEN RIGID SHEET MATERIAL. contractors must in the first instance check & confirm level of the existing flat roof - appraise condition & renew / replace as necessary following proposed flat roof spec DPC finished min 150mm over finished ground level Celcon high strength trench blocks GROUND FLOOR : GROUND BEARING SOLID : MIN 65MM CONCRETE SCREED ON RECOMMENDED SEPARATION LAYER ON 90MM KINGSPAN KOOLTHERM K103 INSULATION BOARD FLOORBOARD, LAID IN ACCORDANCE WITH MANUFACTURERS RECOMMENDATIONS - ON DAMP PROOF MEMBRANE TO SUIT INSULATION LAPPED & BONDED TO DPC MIN 150MM OVER FINISHED GROUND LEVEL ON MIN 100 MM CONCRETE SLAB IN C 35/20 CONCRETE ON VISQUEEN WITH 1 LAYER OF A142 MESH REINFORCEMENT 1200 DPM OVER SAND BLINDED WELL CONSOLIDATED HARDCORE BASE F.F.L TO CHECK & CONFIRM ON SITE. floor construction U value = 0.21wm2k - ALL TO BE LAID IN STRICT ACCORDANCE WITH MANUFACTURERS RECOMMENDATIONS / SITE NOTES carefully remove existing flat roof to expose walls - new pitched roof of extension to carry through & replace it - confirm cill height of gable window over to accept roof ! close wall cavities - insulated dpc & masterboard to closures new 65mm dia pvc rwp & roddable gulley new surface water drain to connect with existing system install sanitary suite to clients discretion refer to spec for pipe sizes etc & provide external rodding access at changes in direction fibre glass roof membrane taken vertically up existing wall & finished below bell mould over cavity tray, to entire roof / wall abutment form recess within parapet wall fully lined with fibreglass membrane & insulation material to afford egress for surface water from flat roof in line with current surface water drainage parapet walling finished with precast concrete copings install cavity tray below with weep holes @ 450mm cts & stop ends wall built upto position of inner leaf of wall below at side walls install cavity tray with stop ends & weepholes @ 450mm cts over lintels as spec specialist high performance glazed units to suit areas of severe weather exposure WARM FLAT ROOF; DECATHANE OR SIMILAR LIQUID SINGLE PLY PLASTIC ROOFING MEMBRANE, APPLIED TO MANUFACTURERS RECOMMENDATIONS & APPLIED TO ABUTMENT OF ALL WALLS WITH COVER FLASHINGS OVER, ON 18 MM EXTERIOR GRADE PLY BOARD ON 150 MM KINGSPAN THERMA ROOF TR26 FM ZERO ODP INSULATION BOARD MECHANICALLY FIXED TO MANUFACTURERS RECOMMENDATIONS TO KINGSPAN APPROVED VAPOUR CONTROL LAYER / BREATHER MEMBRANE ON 18 MM WATER RESISTANT PLYWOOD DECK ON TANAL1SED SW FIRRING SECTIONS TO ACHIEVE MIN 1 : 80 FALL FROM FRONT TO BACK - STRAPS TO MIN 3 NO JOISTS RUNNING PARALLEL TO WALLS OR 1200MM ELSEWHERE - 75 x 122 MM SC3 GRADE FLAT ROOF JOISTS @ 400 MM CTS OFF GALVANISED HANGARS WITH ENDS WRAPPED IN DPC MATERIAL & ATTACHED TO EXISTING DWELLING WALL VIA 125 x 50 MM TANALISED SW BEARER RAG BOLTED & EPOXY RESIN ANCHORED TO EXISTING MASONRY @ 1200 MM CTS OR SHOULD LEVELS PERMIT OFF EXISTING WALL PLATE U VALUE = 0.15 W/MK bespoke upvc roof lantern by specialist size 1200mm2 with opening lights to provide 1:20th ventilation of floor area affixed to insulated sw tanalised timber framework off doubled up flat roof joists as trimming sections skim existing walls to accept internal decoration remove window & sill - wall up in 100mm dense concrete block & line internally to new area with with 32.5mm Kingspan Thermawall insulating plasterboard - or comparable CONTRACTORS TO CHECK & CONFIRM ALL SITE DIMENSIONS & DETAILS WRITTEN DIMENSIONS TAKEN IN PREFERENCE TO SCALED F I R S T F L O O R P L A N 1 : 1 0 0 S I D E E L E V A T I O N 1 : 1 0 0 APPLICATION SITE R E A R E L E V A T I O N 1 : 5 0 S I D E E L E V A T I O N 1 : 1 0 0 G R O U N D F L O O R P L A N 1 : 1 0 0 S I T E P L A N 1 : 5 0 0 R E A R E L E V A T I O N 1 : 1 0 0 S I T E P L A N 1 : 5 0 0 E X I S T I N G A R R A N G E M E N T E X I S T I N G A R R A N G E M E N T FOUNDATIONS; . PROVIDE A MINIMUM OF 450MM BETWEEN FINISHED GROUND LEVEL TO TOP OF FOOTINGS - MIN 600 x 225 MM CONCRETE STRIP FOOTINGS IN C35/20 GRADE CONCRETE AT LEVEL OF ADEQUATE BEARING STRATUM, MIN 600MM BELOW GROUND LEVEL. FOOTINGS STEPPED ON ELEVATION SHOULD OVERLAP BY TWICE THE FOOTING THICKNESS OR 300MM WHICHEVER GREATER CAVITY WALLS : AFFIX TO EXISTING WITH FURFIX SS WALL TIES & VERTICAL DPC - CUT INTO EXISTING WALL - 100 MM DENSE CONCRETE BLOCK, 110 MM CAVITY WITH 60 MM KINGSPAN KOOLTHERM K108 OR SIMILAR PARTIAL FILL CAVITY BATS AND FIXINGS, 100 MM DENSE CONCRETE BLOCK INNER LEAF TO ACCEPT WITH 32.5MM KINGSPAN KOOTHERM K118 INSULATION BOARD INCORPORATING 12.5MM P/BD ACCEPT DECORATION TO CLIENTS DISCRETION. PROPRIETARY S.S WALL TIES SPACED AT 450MM VERTICAL, 750 0MM HORIZONTAL & 300MM AT REVEALS, CATNIC CG 50 / 100 TYPE HEAVY LINTELS AND INSULATED DPC TO STRUCTURAL OPENINGS WITH INSULATION INFILL & WEEP HOLES TO OUTER LEAF.. CLOSE ALL CAVITYS WITH MASTERBOARD OR SIMILAR, INSULATED DPC TO CAVITY CLOSURES.2 COAT S/C RENDER EXTERNALLY, PROVIDE MOVEMENT JOINTS TO BS 5628 @ 6000MM CTS OR 3000MM FROM CORNERS wall construction U value = 0.17w/mk area for laundry appliances sink units fitted to existing wall provide mechanical extract ventilation as spec new 40mm dia drainage pipe to serve Utility Room - confirm levels suggest taking through external wall dropping vertically in corner to ground floor drainage - provide rodding access points at all changes in direction corner of adjacent garage structure contractors to carefully expose formation level of all adjacent walling & locally avoid deep excavations - confirm contractors to carefully expose formation level of all adjacent walling & locally avoid deep excavations - confirm contractors must in the first instance check & confirm level of the existing flat roof - appraise condition & renew / replace as necessary following proposed flat roof spec appraise suitability to re use existing hot water cylinder - note floor - ceiling height approx 2300mm - appraise level of header tank form new airing cupboard within SW stud partitions CONTRACTORS TO CHECK & CONFIRM ALL SITE DIMENSIONS & DETAILS WRITTEN DIMENSIONS TAKEN IN PREFERENCE TO SCALED potentially relocate gas meter box below new window maintain min 100mm clear cavity between existing party wall & new 100mm dense concrete block liner wall - lined internally with 32.5mm Kingspan Thermawall insulating plasterboard - or comparable form new W.C & cupboard within SW stud partitions parapet walling finished with precast concrete copings install cavity tray below with weep holes @ 450mm cts & stop ends wall built upto position of inner leaf of wall below at side walls existing ground floor level maintained the floor construction appears to be ground bearing concrete retain set back to new wall - to afford space for wheelie bin within the site boundary - existing garden wall to be removed maintain existing flat roof level throughout as surface water dispersion crosses area of intended works remove existing rwp & g maintain existing drainage arrangement & adapt as necessary to accept proposals contractors must at earliest opportunity check & confirm the direction of the existing flat roof joists assume they run side to side & are not reliant on the existing external wall for support !! existing wall to be removed entirely to floor level remove existing partitions shown dotted bespoke upvc roof lantern by specialist size 1200mm2 with opening lights to provide 1:20th ventilation of floor area affixed to insulated sw tanalised timber framework off doubled up flat roof joists as trimming sections contractors must in the first instance check & confirm level of the existing flat roof - appraise condition & renew / replace as necessary following proposed flat roof spec resurface remaining yard to clients discretion any paved areas laid to falls to aid surface water dispersion up to current pavement area covered by interlinked mains powered smoke detection to BS 5446 part 2 retain & protect boundary wall & abutting structures - log condition & any defects wall & abutting structures in advance of works contractors must at earliest opportunity check & confirm the direction of the existing flat roof joists assume they run side to side & are not reliant on the existing external wall for support !! existing wall to be removed entirely to floor level joist direction roof falls sand cement render to accept masonry paint to match existing form step up as required upvc window on precast concrete sill & high security rear door by specialist potentially relocate gas meter box below new window AREA OF PROPOSED WORKS WITHIN REAR YARD AREA retain set back to new wall - to afford space for wheelie bin within the site boundary - existing garden wall to be removed suggest a single length lintel covers both structural openings