Board Under Roof Tiles

It is applied under all other roofing materials as an added layer of protection from severe weather.

Board under roof tiles. The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet. It s usually a peel and stick product that adheres directly to the roof deck. Now i have a fully covered roof with gutter system over my deck just like the rest of my house and it is enclosed on 3 sides. This is a distinct advantage over plywood and drywall.

This would normally be fixed under the batten down the gable end leaving a gap you can then mortar fill in between the roof covering and the board. The tcna accepted the 1 4 per foot under the grounds that all exterior installed tile would be considered for drainage purposes a roof. Also known as a fascia. The attic must be ventilated to protect the roofing system against excessive heat in summer and warm moist air generated by the house in winter.

Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. The polymer modified thin set provides additional strength and helps eliminate any movement between the backer board and the subfloor. Felt roof cold normally a two or three layers system for boarded flat roofs using cold applied adhesive. There are three main types of roofing underlayment.

This provides a solid surface under the tile that prevents flexing that could lead to cracking. R values 28 tested in accordance with astm c518 spannings. 4 5 bullet. Water shield is the next roofing layer that creates a water proof barrier where ice or water can buildup near the roof eaves.

Most roof decking is made from sheets of plywood. Use a polymer modified thin set a type of mortar to attach the backer board to the subfloor. Roof edge or eaves edge all the boards running along the edge of the roof or eaves. Roof tiles slates.

All roof tiles slates. Roofing underlayment is a water resistant or waterproof barrier material that is installed directly onto your roof deck. 1 4 dens deck roof board. Fascia the vertical board secured to the ends of the rafters under the lower end of the roof to which the guttering is normally fixed traditionally timber nowadays usually upvc.

Densdeck roof boards can replace any generic type x gypsum board in any roof assembly in the ul fire resistance directory under the prefix.