LICT-Exterior cheat sheet

Unverified content outline - no official blueprint was supplied for this exam

• Roof slope = vertical rise ÷ horizontal run, normalized to 12; asphalt shingles require ≥2:12. Slopes below 2:12 are low-slope and need a membrane or built-up system.

• Ice barrier membrane extends from the eave edge to ≥24 in. inside the exterior wall line; step flashing is required at roof-to-sidewall intersections and is covered by counter-flashing.

• Finish grade falls ≥6 in. within the first 10 ft from the foundation (≥5% slope); downspouts discharge ≥4–6 ft from the foundation.

• Wood siding sits ≥6 in. above finish grade; masonry veneer ≥4 in.; brick weep holes are spaced ≥24 in. on center and must remain open.

• Deck ledgers attach to the band joist with lag screws or through-bolts; ledger flashing sits above the ledger and behind siding; joist hangers carry the load.

• Chimney height follows the 3-2-10 rule: ≥3 ft above the highest roof penetration and ≥2 ft above any roof surface within 10 ft.

• Exterior receptacles require GFCI protection; A/C condensers need ≥30 in. wall clearance and ≥3 ft service access; dryer vents terminate ≥3 ft from openings.

• Hail damage: random circular soft spots and granule loss. Wind damage: creased, torn, or missing tabs. Functional damage impairs water shedding; cosmetic damage does not.

• RCV = repair/replacement cost with new materials, no depreciation. ACV = RCV − depreciation. Matching compares color, texture, and size; unavailable match may trigger full-surface replacement.