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work in progress 520 1:20 @ A3 05_CONSTRUCTION Lightwell section AA 285_Lorne House Castletown Tom + Lara Inskip horncastle:thomas a r c h i t e c t s + d e s i g n e r s Do not scale from this drawing • All dimensions must be checked on site prior to commencing works. Any discrepancy found between information given on this drawing and that given elsewhere or recorded on site shall be notified immediately to the project architect in writing. 20 Athol Street Douglas ISLE OF MAN IM1 1JA 01624 663 383 © Number Scale 26/05/2022 ISSUE additional second arch + amended megaflow door A 02/06/2023 see 700 150 c/l set out on centre of arch and parallel to existing ridge board BATHROOM MEGAFLO NEW LIGHTWELL LOFT LOFT 1446 over-ridge rooflight centred on ridge line NOT centred on arch (offset approx 100mm) 1550 1780 equal equal 1 3 2 5 3 4 4 6 7 min approx approx 5 1445 400 400 please note that 400mm offset dimension is nominal ensure sufficient clearance below existing leadwork and that resulting offset is equal throughout outer archway 1. 2. 3. 4. 5. 6. 7. origInal arched window opened up into new lightwell (already undertaken) new maxlight over-ridge rooflight above (shown dotted) note that existing ridge board is approx 100mm off c\l of archway new section of wall to open lightwell to underside of roof plasterboard + skim on 18mm plywood (lightwell side) on 75x50mm treated timber studs at max 600 c/c; 50mm Isover acoustic partition roll (APR 1200) insulation (min density 10kg/m3) suspended between studs; noggins at max 450c/c new lightwell skirting to match landing outside bedroom (profile tbc) new section of wall to open lightwell to underside of roof with reused existing door in new opening to megaflo cupboard plasterboard + skim on 18mm plywood (lightwell side) on 75x50mm treated timber studs at max 600 c/c; 50mm Isover acoustic partition roll (APR 1200) insulation (min density 10kg/m3) suspended between studs; noggins at max 450c/c; new lightwell skirting to match landing outside bedroom (profile tbc) lining over existing masonry with corner bead to match existing and form extension of existing archway existing gutter (originally external) to be carefully cleaned off, remaining redundant leadwork to be removed, new boxing around plasterboard lining over gutter to line through with jamb of rooflight and form outer arch offset from existing inner NB Maxlight order to be placed on comencement of contract Kerb upstand and waterroofing detail can then be confirmed with Maxlight Rooflight kerbs to be set out and constructed The kerbs must be square to the ridge The walls below must be set out to correspond to the kerbs and the plasterbpard lining must be continuous The walls must be centred on the archway NOT centred on the ridge The rooflight will have unequal panes either side of ridge Maxlight will attend site to measure up (1 weeks notice) Fabrication drawings available approx 1 week later Maxlight will attens site to install approx 8 weeks later If in doubt or if any unforseen issues arise during set out PLEASE ask the architect before proceeding
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