Roof Sheeting Span Tables

Roof spans consider both resistance to wind pressure and light roof traffic traffic arising from incidental maintenance.

Roof sheeting span tables.

This video may depict some work practices that do not meet current safety standards. Recom mended loads for sheathing and flooring applications in these publications directly reflect minimum performance. The wind capacity tables are based on testing in accordance with as1562 1 1992 and as4040 0 1 2 1992. Osb roof design example calculations using asd 4x8 foot.

Load span tables for apa structural use panels number q225g february 2011 load span tables for specific structural use panel applications are included in several apa publications. Always ensure your work site is compliant with current osha regulations. Flat roof span tables allow for a maximum roof pitch of 5º. Sheeting material shall be protected steel sheet to australian standard as1397 with a minimum yield stress of 550mpa grade g550 and an am100 az150 coating with or without an oven baked paint.

Roof pitch use recommended minimum roof pitches as specified by roof sheet supplier. Floor and roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Reading off the empty under table with h 5m hc 2 5m span table c will be used to determine the spans. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

Avoid roof complaints with proper framing sheathing and roofing techniques. The roofing walling shall be 0 42 or 0 48 mm bmt stramit corrugated roof and wall cladding in continuous lengths with sinusoidal ribs 16mm high spaced at 76 2mm centres in accordance with as1445. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Step 4 assume the wind classification for the area is n1 and the roofing profile is stramit corrugated cladding 0 48mm bmt thickness in a single span configuration.

From span table c the maximum allowable single span is 2160mm. Capacity tables are in limit state format. Span table the maximum recommended support spacings are based on testing in accordance with as1562 1 1992 as4040 1 1992 and as4040 2 1992. Posts these span tables are designed for a minimum post size of 50 x 50 x 2 5mm up to a maximum height of 3 0m.

Table b relationship between span rating and nominal thickness for osb a nominal thickness b in span rating 3 8 7 16 15 32 1 2 19 32 5 8 23 32 3 4 7 8 1 1 1 8 sheathing span 24 0 0 375 0 437 0 469 0 500 24 16 0 437 0 469 0 500 32 16.