Roof ConstructionWarm roof against cold roof, and why the choice changes where the vents go.ArchitectureWarm roofInsulation above the deckDeck stays warm and dryNo ventilation void neededVapour control below theinsulationDeeper build-up, higher upstandsCold roofInsulation at ceiling levelDeck sits in cold outside airMust be ventilated, both sidesHigher condensation riskShallower, cheaper, riskierTHE DIFFERENCE THAT MATTERSWarm roof is the safer default. Cold roofs work only if the ventilationpath is genuinely continuous.Flat roofs need a fall. Designing at about 1 in 40 usually delivers 1 in 80finished, once deflection is allowed for.Roof Constructionlearnposters.com
Roof Construction — printable design wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Roof Construction poster

Warm roof against Cold roof, side by side.

Flat roofs need a fall. Designing at about 1 in 40 usually delivers 1 in 80 finished, once deflection is allowed for.

Questions about the Roof Construction poster

What’s on the Roof Construction poster?
Warm roof against Cold roof, side by side. Warm roof: Insulation above the deck; Warm roof: Deck stays warm and dry; Warm roof: No ventilation void needed; Warm roof: Vapour control below the insulation; Warm roof: Deeper build-up, higher upstands; Cold roof: Insulation at ceiling level; Cold roof: Deck sits in cold outside air; Cold roof: Must be ventilated, both sides; Cold roof: Higher condensation risk; Cold roof: Shallower, cheaper, riskier; Warm roof is the safer default. Cold roofs work only if the ventilation path is genui…. Flat roofs need a fall. Designing at about 1 in 40 usually delivers 1 in 80 finished, once deflection is allowed for.
Who is the Roof Construction poster for?
Roof Construction belongs to the Architecture section rather than to a school year, because design is not something one grade owns. Anyone learning construction technology can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Roof Construction poster?
Use it when detailing any flat or pitched roof. Get this wrong and the structure rots. A wall chart earns its place by being glanceable from where the work is happening, so Roof Construction belongs on the wall where that design work actually happens, within glancing distance, rather than filed away.
What other posters go with Roof Construction?
The Envelope, The Cavity Wall and Cladding Systems sit alongside Roof Construction in the Architecture section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.The EnvelopeThe Cavity WallCladding Systems
Is the Roof Construction poster free to download and print?
Yes. Roof Construction downloads as a free PDF with no account, no email and no watermark, like everything else in the Architecture section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Roof Construction poster print at?
Roof Construction is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Roof Construction loses nothing.Printing guide

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