we create a rectangle
then we select the basic shapes in the bar on the left side
there is a triangle
we insert this
select both shapes and choose align center 
then we click on the triangle and select edit node
here we click on the upper node and press down with the arrow key (holding the +Shift key is quick)
until the tip fits
select both and choose unite

the roof is just a rectangle that we create and place
then a heart in the center 
and the door again a rectangle further down
 

again small rectangles for the window
copy these 4 times at the same distance from each other

at the top there is a small circle to hang up

paint and then pull a jute rope through it