Corner piece for vinyl siding retainers

A vinyl corner piece for covering junctions between adjacent horizontal and vertical retainer strips for siding around right angled openings in a wall, said openings having horizontal and vertical frame components, the corner piece comprising:

• a generally L-shaped vinyl base plate for fastening to said wall having a first leg integral with a second leg, the first leg being defined by an inner and an outer edge, the second leg being defined by an inner and an outer edge;
• and
• a first and a second vinyl flange extending outwardly from said base plate and said wall when said base plate is fastened to said wall, said first and second vinyl flange extending continuously along the inner edges of the first and second legs, the flanges each being comprised of first and second members, the first member being perpendicular to the base plate, the second member being held in spaced, substantially parallel relationship to the base plate by the first member, the second members presenting a continuous, L-shaped barrier that forms a channel in cooperation with the base plate and first member;
• a continuous vinyl retainer flange carried by each second member and projecting from the second member towards the base plate in partially covering relationship to the channel.

A method for covering the junction between elongated horizontal and vertical retainer strips around right angled openings in a wall, said openings having adjacent horizontal and vertical frame components, the method comprising the steps of:

• securing a generally L-shaped base plate to said wall adjacent a corner formed by the intersection of the horizontal and vertical components of the frame, the base plate having a first leg integral with a second leg, the first leg being defined by an inner and an outer edge, the second leg being defined by an inner and an outer edge, a first and a second flange extending outwardly from the plate and from said wall continuously along the inner edges of the first and second legs, each said first and second flange being comprised of first and second members, the first member being perpendicular to the base plate, the second member being held in spaced, substantially parallel relationship to the plate by the first member, the second members presenting a continuous, L-shaped barrier that forms a channel in cooperation with the base plate and first member, the first leg being placed adjacent and parallel to the horizontal component of the frame and the second leg being placed adjacent and parallel to the vertical component of the frame;
• providing a first and a second strip, each strip being defined by a first edge and a second edge, an L-shaped extension projecting outwardly from the strip continuously along the first edge of the strip, the extension being comprised of first and second elements, the first element being substantially perpendicular to the strip, the second element being held in spaced, parallel relationship to the strip by the first element, the distance between the second element and the strip being less than the distance between the second member of the base plate and the base plate, the second element presenting a continuous barrier that forms a channel in cooperation with the strip and first element;
• affixing the first strip adjacent the horizontal frame component along substantially the entire length of the horizontal frame component with the channel of the first strip being received within the channel of the first leg of the base plate;
• affixing the second strip adjacent the vertical frame component along substantially the entire length of the vertical frame component, the channel of the second strip being received within the channel of the second leg of the base plate.