Rolling Hills Estates Room Additions That Open the House

Rolling Hills Estates additions with a glass wall to the garden, kept comfortable through low-gain glass, overhangs and a patio cover outside the doors.

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Will a wall of glass make the new room too warm late in the day? For a Rolling Hills Estates addition the answer depends on which way the glass faces and what shades it. Low-gain coatings, a deep overhang and a patio cover outside the doors can keep a garden room comfortable, and the energy calculation for the permit shows whether the plan works before anything is built.

Glass that controls heat

Every window and door on the addition carries a rating for how much solar heat it lets through. A lower number keeps more heat out while still passing daylight, and a low-E coating reflects warmth back outside. Large panels facing the late sun gain the most from it. Tinted glass cuts heat further but darkens the view, so we compare samples with you before ordering. Insulated frames stop heat moving through the frame around the glass. These figures go onto the energy forms the building department reviews with the permit set.

Shade outside the glass

Shade does its best work before sun reaches the pane. An overhang sized to the height of the opening blocks high midday sun and still lets lower light in. A patio cover or a louvered pergola carries that shade further into the yard, and it makes the outdoor space usable when the doors fold back. Trees and planting can help over time. Ceiling fans and operable windows on the opposite wall let a breeze cross the room, which cuts how often the air conditioning has to run.

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