Abstract: A coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating is provided. The coated mat is a cured, non-woven mat including a mixture of fibers having different fiber lengths. The fibers contain a polysiloxane compound and are fixedly distributed in a binder.

Abstract: Tile vent for covering the opening of the ridge of an undulating roof. The tile vent includes two unitary panels facing each other in a mirror image fashion the top portion of which is affixed to a ridge board and the bottom portion of which is affixed to the undulating roof. The tile vent includes vent slots to allow exhaust of attic air, and reinforcing stiffeners to support ridge tiles placed over the opening in the ridge.

Abstract: The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde type binder containing a binder modifier which is a crosslinked styrene/acrylic polymer, and to a process for the preparation of the mat.

Abstract: Tile roof vent for covering the opening of the ridge of an undulating tile roof. The vent includes two panels spaced from each other, each of which has a hard plastic sheet with a lower portion and an upper portion. To the underside of the lower portions are affixed an air-permeable mat and optionally a layer of foam rubber which conform to the undulating configuration of the tile roof. The lower portions of the hard plastic sheets are reinforced by stiffeners integral with the hard plastic sheet and also contain vent holes for exhausting air from the attic space.