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work in progress 521 1:20 @ A3 05_CONSTRUCTION Lightwell section BB 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 please note that 400mm offset dimension is nominal ensure sufficient clearance below existing leadwork and that resulting offset is equal throughout outer archway see 700 1 2 4 3 5 6 7 8 7 9 10 10 11 12 400 205 8. 9. 10. 11. 12. repair needed to stringer/ moulding; new section to be peiced in, profiled to match; fill and repaint studwork framing out required to ensure continuity of plasterboard lining down to architrave, panels and door opening; loft floor extended to meet new stud wall; lining dictated by the position of the existing masonry walls (clad in same lining) and orientation of rooflight above; this lining must be square to the rooflight (ie and to the existing ridge) doubled rafter at rooflight opening to support base of insulated rooflight kerb stud frame slates to be stripped back to valley to full height of rooflight, casefully set aside and reused (any excess remaining to be retained for the client); valley to be inspected and repaired as necessary; battens and breather membrane to be replaced like for like as required existing rafters, insulation and breather membrane retained, repaired or replaced if needed, and made godd around opening for new rooflight 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