
LFA Roofs Pro
Rafter & Truss 3D Calculator
About
What's New in LFA Roofs Pro
2.0.4
October 21, 2026
• Fixed a crash when opening calculator 10 (Plywood Covering). Switching roof calculators now applies their saved dimensions safely. • Each roof type keeps its dimensions, materials, colors and layers when switching calculators and after closing and reopening the app. • Clay finish on curved tiles, better seated ridge caps and cleaner dormer junctions. • Closed addition sheathing, bay wall flashing beneath the tiles and corrected high-edge trim. • Expanded shopping list with barge boards, ceiling joists, drywall and insulation, matching the 3D model. Cleaner roof geometry, closer to how it is built: • L-shaped roof (hip and valley): the junction of ridge, hip and valley is closed at any size, in tile, shingle and metal; the tile hip cap no longer rises above the ridge. • Tile: pan tiles now run the right way (narrow end at the eave), hollow and seated inside the one below; cover tiles show their edge; the ridge mortar bed slopes down to fill the tile mouths; tile sits on the valley flashing. No slivers between tiles, no dark gaps under the ridge cap, no teeth along the valley cut. • Trim: rake ends, eave corners, ridge caps, junctions and wall flashing closed all the way to the tip; cone cap on the turret peak. • Barge board outside the fly rafter on every gable, and a one-board ridge from fly rafter to fly rafter, notched at the overhang. • Dormer: the existing roof has its eave, soffit and sheathed front wall; sheathing closed at the peak; ceiling and insulation batts in the dormer and the bay. • Insulation wall to wall in all fifteen roofs; every piece card in the app language, naming what the piece is. • Fascia boards on the house and the addition aligned and cut to their exact width, also in valley roofs with two pitches. • The open-valley channel runs to the peak and out to the drip line, in tile, shingle and metal. • Wraparound porch at its height under the fascia; wall flashing on both sides of the bay roof; wooden corner posts. • The dimension controls apply the minimum fascia width, so the number you set, the cut list and the 3D model agree. • Loose or overlapping pieces fixed across all fifteen roofs.
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LFA Roofs Pro Monthly
Full access to all 15 3D/2D roof framing models.









