Framing A Greenhouse Roof

Garden greenhouses plans framing greenhouse roof design greenhouses building for growing plants and tomatoes cucumbers.

Framing a greenhouse roof.

The plastic sheeting that covers the wood frame will last 3 5 years and can easily be replaced or the structure taken apart depending on your future needs. An a frame greenhouse is another diy greenhouse type that is fairly easy to frame. Install the automatic vent so you can control the climate inside the greenhouse with ease. In areas with heavy snow at least 3 or 4 feet is good to have so that snow won t pile back up onto the greenhouse roof or obstruct any vents.

To find the best angle for a greenhouse roof take your latitude and add 20 degrees. Related to the roof slope is the freeboard the space between the lowest point of the roof and the ground. A good size for most long and narrow yards it will keep your plants shielded from the weather with a sharply sloped roof and thick plastic sheeting. Install ground anchors attach the base to anchor install the side walls frames front and rear of greenhouse install the roof structure installation of polyethylene film exterior finish interior finishing.

Most diy greenhouse builders use 2 x4 pressure treated pine lumber or cedar to frame the two vertical walls front and back and leave an opening for a door. Solar greenhouse designers often cite a rule of thumb along the lines of. This diy structure can be created in any size needed and can be semi permanent or permanent. You require 2 x4 for the rafters cross rafters and the top ridge.

Place rafters at 2 intervals. Use 1 2 trims along the framing of the greenhouse so you can lock the film into place tightly. Having two doors both in the front and back walls will aid in creating good circulation. These rafters should be nailed atop the plates as well as the ridge board at the crest of the roof.

The best angle for greenhouse glazing in the roof is not as clear cut as some solar greenhouse designers make it sound. Framing and glazing materials the two most common framing materials are wood and metal. However if it is to be used for roofing greenhouses in snowy regions large rafters measuring 2x6 may be required. Last but not least you need to attach the film to the exterior of the greenhouse.

While the logic behind this rule is sound it is a dramatic oversimplification that can lead to costly and unnecessary decisions to build very steeply angled roofs. These greenhouses feature sturdy steel frames and cost effective plastic film as a covering. This wood frame greenhouse provides the option to open up the roof panels for ventilation purposes. Wood frame greenhouse plan.