Flat Roof Board Thickness

Thickness and fixing recommendations are similar to those for plywood.

Flat roof board thickness.

Adequate roof membrane showing solid thickness mastic asphalt 20mml integrity using grade taken into consideration. Tr27 kingspan flat roof insulation. Whatever you re working on our range of plywood board contains everything you need at our famously low prices. A minimum thickness of 18mm these will be able to span up to 600mm.

We have the right sized osb3 board for almost every job. Find out more in our guide to insulating a flat roof. Buildingregs4plans flat roof guidance provides information on flat roof deck design and materials including timberboarding plywood oriented strandboard. Tr27 insulation consists of high performance pir boards with glass facings on either side.

Available wood thickness standard 7 16 or 5 8 thick rated 1 osb. Roofs with very heavy loads may require 3 4 inch thickness. Oriented strand board osb osb used for flat roof decking should be type osb 3 or osb 4 conforming to bs en 300. The tr27 range of insulation from kingspan has been developed specifically for insulating flat roofs.

Wood particle board chipboard. Regardless of thickness the plywood should be a type suitable for exterior use graded exterior or exposure 1 references. The vcl and insulation board warm roof without deflection. Osb a sterling board.

Installed correctly allowing falls to roof using per furring. 4 1219 mm 1 8 3 mm. Retroplus roof board is an expanded perlite mineral aggregate board. These flat roof insulation boards have been manufactured so.

Sterling board is resistant to water with the osb3 option being particularly suitable for humid conditions. The usual recommendation is that osb 3 or osb 4 bs en 300 should be used in flat roofs. Oriented strand board osb osb has almost the same application and usefulness as the plywood it is made from wafers of timber rather than full sheets of veneer. Wood edges are routed 1 8 to allow for expansion and contraction of the wood.

Suitable for use with all bauder systems. Sufficient thickness 18mml. 1 2 12 7 mm 1 32 0 8 mm width standard. Densdeck roof boards are utilized in a wide variety of roofing systems for new and re roofing applications as gypsum roof cover boards and thermal barriers.

A good alternative to ply wood and usually cheaper we stock osb3 board in a selection of sizes. Always install wood side up. That is easy to install and cut builds slope into an otherwise flat roofing system.