Separation Board In Roofing

Only product in the marketplace to offer prefabrication of the entire roofing system.

Separation board in roofing. Densdeck roof boards are fm tested and approved as the only 1 2 gypsum product to meet the calorimeter requirements for conventionally insulated decks. Underneath the membrane there is usually a separation barrier and or some sort of insulation board. Single ply membranes are installed either as fully adhered or mechanically attached systems depending on each roof s condition installer s preferences and other factors. Position the fastening plates over the insulation board.

Use a roofing knife to trim foam board or a fine tooth saw to trim rigid board. Separator polyiso roof recover board typical physical properties test astm values strength tensile strength c 209 500 psf 24 kpa min compressive resistance 10 consolidation d 1621 20 psi 138 kpa min dimensional stability change length width d 2126 2 max moisture moisture vapor permeance e 96 1 perm 57 5 ng pa s m2 water absorption c 209 1 0 max. Properly installed energyguard perlite roof insulation is suitable for use under built up and modified bitumen roofing. The fascia is the board along the bottom of a roof that faces outward.

This article explains the importance of fascia and soffit boards and how to maintain the joints where they meet. Tested in accordance with astm e84 its surface burning characteristics are flame spread 0 and smoke developed 0. Cover boards have historically had two uses. 3 0 oz yd2 102 g m2 needle punched non uv resistant polyester fabric.

A cover board provides separation between a roof cover and insulation that may not be compatible or the attachment adhesive of the roof membrane is not compatible with the insulation. It is the most visible piece of the roofline. Numerous studies show the value of cover boards in enhancing a roof cover s ability to resist damage by hail. Insert a plate every 2.

Trim the boards to fit as needed. In addition national roofing contractors association nrca has issued bulletins over the years recommending the use of cover boards to minimize damage to polyiso. Jm 3 oz polyester slipsheet is intended for use as a separation layer between an existing roof system and a new single ply recover system. All loose and protruding gravel must also be removed.

Most common insulation is iso or eps foam board. In re cover applications all wet areas of the old roof must be removed. Roof membrane available in 40 50 and 60 mil thickness. Below the fascia is the soffit that face downward.

It usually encases lights and internal gutter systems.